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• Constructor parameter validation in C# - Best practices

  - by MPelletier

  What is the best practice for constructor parameter validation? Suppose a simple bit of C#: public class MyClass { public MyClass(string text) { if (String.IsNullOrEmpty(text)) throw new ArgumentException("Text cannot be empty"); // continue with normal construction } } Would it be acceptable to throw an exception? The alternative I encountered was pre-validation, before instantiating: public class CallingClass { public MyClass MakeMyClass(string text) { if (String.IsNullOrEmpty(text)) { MessageBox.Show("Text cannot be empty"); return null; } else { return new MyClass(text); } } }

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• ASP.NET and WIF: Showing custom profile username as User.Identity.Name

  - by DigiMortal

  I am building ASP.NET MVC application that uses external services to authenticate users. For ASP.NET users are fully authenticated when they are redirected back from external service. In system they are logically authenticated when they have created user profiles. In this posting I will show you how to force ASP.NET MVC controller actions to demand existence of custom user profiles. Using external authentication sources with AppFabric Suppose you want to be user-friendly and you don’t force users to keep in mind another username/password when they visit your site. You can accept logins from different popular sites like Windows Live, Facebook, Yahoo, Google and many more. If user has account in some of these services then he or she can use his or her account to log in to your site. If you have community site then you usually have support for user profiles too. Some of these providers give you some information about users and other don’t. So only thing in common you get from all those providers is some unique ID that identifies user in service uniquely. Image above shows you how new user joins your site. Existing users who already have profile are directed to users homepage after they are authenticated. You can read more about how to solve semi-authorized users problem from my blog posting ASP.NET MVC: Using ProfileRequiredAttribute to restrict access to pages. The other problem is related to usernames that we don’t get from all identity providers. Why is IIdentity.Name sometimes empty? The problem is described more specifically in my blog posting Identifying AppFabric Access Control Service users uniquely. Shortly the problem is that not all providers have claim called http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name. The following diagram illustrates what happens when user got token from AppFabric ACS and was redirected to your site. Now, when user was authenticated using Windows Live ID then we don’t have name claim in token and that’s why User.Identity.Name is empty. Okay, we can force nameidentifier to be used as name (we can do it in web.config file) but we have user profiles and we want username from profile to be shown when username is asked. Modifying name claim Now let’s force IClaimsIdentity to use username from our user profiles. You can read more about my profiles topic from my blog posting ASP.NET MVC: Using ProfileRequiredAttribute to restrict access to pages and you can find some useful extension methods for claims identity from my blog posting Identifying AppFabric Access Control Service users uniquely. Here is what we do to set User.Identity.Name: we will check if user has profile, if user has profile we will check if User.Identity.Name matches the name given by profile, if names does not match then probably identity provider returned some name for user, we will remove name claim and recreate it with correct username, we will add new name claim to claims collection. All this stuff happens in Application_AuthorizeRequest event of our web application. The code is here. protected void Application_AuthorizeRequest() {     if (string.IsNullOrEmpty(User.Identity.Name))     {         var identity = User.Identity;         var profile = identity.GetProfile();         if (profile != null)         {             if (profile.UserName != identity.Name)             {                 identity.RemoveName();                   var claim = new Claim("http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name", profile.UserName);                 var claimsIdentity = (IClaimsIdentity)identity;                 claimsIdentity.Claims.Add(claim);             }         }     } } RemoveName extension method is simple – it looks for name claims of IClaimsIdentity claims collection and removes them. public static void RemoveName(this IIdentity identity) {     if (identity == null)         return;       var claimsIndentity = identity as ClaimsIdentity;     if (claimsIndentity == null)         return;       for (var i = claimsIndentity.Claims.Count - 1; i >= 0; i--)     {         var claim = claimsIndentity.Claims[i];         if (claim.ClaimType == "http://schemas.xmlsoap.org/ws/2005/05/identity/claims/name")             claimsIndentity.Claims.RemoveAt(i);     } } And we are done. Now User.Identity.Name returns the username from user profile and you can use it to show username of current user everywhere in your site. Conclusion Mixing AppFabric Access Control Service and Windows Identity Foundation with custom authorization logic is not impossible but a little bit tricky. This posting finishes my little series about AppFabric ACS and WIF for this time and hopefully you found some useful tricks, tips, hacks and code pieces you can use in your own applications.

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• Session memory – who’s this guy named Max and what’s he doing with my memory?

  - by extended_events

  SQL Server MVP Jonathan Kehayias (blog) emailed me a question last week when he noticed that the total memory used by the buffers for an event session was larger than the value he specified for the MAX_MEMORY option in the CREATE EVENT SESSION DDL. The answer here seems like an excellent subject for me to kick-off my new “401 – Internals” tag that identifies posts where I pull back the curtains a bit and let you peek into what’s going on inside the extended events engine. In a previous post (Option Trading: Getting the most out of the event session options) I explained that we use a set of buffers to store the event data before  we write the event data to asynchronous targets. The MAX_MEMORY along with the MEMORY_PARTITION_MODE defines how big each buffer will be. Theoretically, that means that I can predict the size of each buffer using the following formula: max memory / # of buffers = buffer size If it was that simple I wouldn’t be writing this post. I’ll take “boundary” for 64K Alex For a number of reasons that are beyond the scope of this blog, we create event buffers in 64K chunks. The result of this is that the buffer size indicated by the formula above is rounded up to the next 64K boundary and that is the size used to create the buffers. If you think visually, this means that the graph of your max_memory option compared to the actual buffer size that results will look like a set of stairs rather than a smooth line. You can see this behavior by looking at the output of dm_xe_sessions, specifically the fields related to the buffer sizes, over a range of different memory inputs: Note: This test was run on a 2 core machine using per_cpu partitioning which results in 5 buffers. (Seem my previous post referenced above for the math behind buffer count.) input_memory_kb total_regular_buffers regular_buffer_size total_buffer_size 637 5 130867 654335 638 5 130867 654335 639 5 130867 654335 640 5 196403 982015 641 5 196403 982015 642 5 196403 982015 This is just a segment of the results that shows one of the “jumps” between the buffer boundary at 639 KB and 640 KB. You can verify the size boundary by doing the math on the regular_buffer_size field, which is returned in bytes: 196403 – 130867 = 65536 bytes 65536 / 1024 = 64 KB The relationship between the input for max_memory and when the regular_buffer_size is going to jump from one 64K boundary to the next is going to change based on the number of buffers being created. The number of buffers is dependent on the partition mode you choose. If you choose any partition mode other than NONE, the number of buffers will depend on your hardware configuration. (Again, see the earlier post referenced above.) With the default partition mode of none, you always get three buffers, regardless of machine configuration, so I generated a “range table” for max_memory settings between 1 KB and 4096 KB as an example. start_memory_range_kb end_memory_range_kb total_regular_buffers regular_buffer_size total_buffer_size 1 191 NULL NULL NULL 192 383 3 130867 392601 384 575 3 196403 589209 576 767 3 261939 785817 768 959 3 327475 982425 960 1151 3 393011 1179033 1152 1343 3 458547 1375641 1344 1535 3 524083 1572249 1536 1727 3 589619 1768857 1728 1919 3 655155 1965465 1920 2111 3 720691 2162073 2112 2303 3 786227 2358681 2304 2495 3 851763 2555289 2496 2687 3 917299 2751897 2688 2879 3 982835 2948505 2880 3071 3 1048371 3145113 3072 3263 3 1113907 3341721 3264 3455 3 1179443 3538329 3456 3647 3 1244979 3734937 3648 3839 3 1310515 3931545 3840 4031 3 1376051 4128153 4032 4096 3 1441587 4324761 As you can see, there are 21 “steps” within this range and max_memory values below 192 KB fall below the 64K per buffer limit so they generate an error when you attempt to specify them. Max approximates True as memory approaches 64K The upshot of this is that the max_memory option does not imply a contract for the maximum memory that will be used for the session buffers (Those of you who read Take it to the Max (and beyond) know that max_memory is really only referring to the event session buffer memory.) but is more of an estimate of total buffer size to the nearest higher multiple of 64K times the number of buffers you have. The maximum delta between your initial max_memory setting and the true total buffer size occurs right after you break through a 64K boundary, for example if you set max_memory = 576 KB (see the green line in the table), your actual buffer size will be closer to 767 KB in a non-partitioned event session. You get “stepped up” for every 191 KB block of initial max_memory which isn’t likely to cause a problem for most machines. Things get more interesting when you consider a partitioned event session on a computer that has a large number of logical CPUs or NUMA nodes. Since each buffer gets “stepped up” when you break a boundary, the delta can get much larger because it’s multiplied by the number of buffers. For example, a machine with 64 logical CPUs will have 160 buffers using per_cpu partitioning or if you have 8 NUMA nodes configured on that machine you would have 24 buffers when using per_node. If you’ve just broken through a 64K boundary and get “stepped up” to the next buffer size you’ll end up with total buffer size approximately 10240 KB and 1536 KB respectively (64K * # of buffers) larger than max_memory value you might think you’re getting. Using per_cpu partitioning on large machine has the most impact because of the large number of buffers created. If the amount of memory being used by your system within these ranges is important to you then this is something worth paying attention to and considering when you configure your event sessions. The DMV dm_xe_sessions is the tool to use to identify the exact buffer size for your sessions. In addition to the regular buffers (read: event session buffers) you’ll also see the details for large buffers if you have configured MAX_EVENT_SIZE. The “buffer steps” for any given hardware configuration should be static within each partition mode so if you want to have a handy reference available when you configure your event sessions you can use the following code to generate a range table similar to the one above that is applicable for your specific machine and chosen partition mode. DECLARE @buf_size_output table (input_memory_kb bigint, total_regular_buffers bigint, regular_buffer_size bigint, total_buffer_size bigint) DECLARE @buf_size int, @part_mode varchar(8) SET @buf_size = 1 -- Set to the begining of your max_memory range (KB) SET @part_mode = 'per_cpu' -- Set to the partition mode for the table you want to generate WHILE @buf_size <= 4096 -- Set to the end of your max_memory range (KB) BEGIN     BEGIN TRY         IF EXISTS (SELECT * from sys.server_event_sessions WHERE name = 'buffer_size_test')             DROP EVENT SESSION buffer_size_test ON SERVER         DECLARE @session nvarchar(max)         SET @session = 'create event session buffer_size_test on server                         add event sql_statement_completed                         add target ring_buffer                         with (max_memory = ' + CAST(@buf_size as nvarchar(4)) + ' KB, memory_partition_mode = ' + @part_mode + ')'         EXEC sp_executesql @session         SET @session = 'alter event session buffer_size_test on server                         state = start'         EXEC sp_executesql @session         INSERT @buf_size_output (input_memory_kb, total_regular_buffers, regular_buffer_size, total_buffer_size)             SELECT @buf_size, total_regular_buffers, regular_buffer_size, total_buffer_size FROM sys.dm_xe_sessions WHERE name = 'buffer_size_test'     END TRY     BEGIN CATCH         INSERT @buf_size_output (input_memory_kb)             SELECT @buf_size     END CATCH     SET @buf_size = @buf_size + 1 END DROP EVENT SESSION buffer_size_test ON SERVER SELECT MIN(input_memory_kb) start_memory_range_kb, MAX(input_memory_kb) end_memory_range_kb, total_regular_buffers, regular_buffer_size, total_buffer_size from @buf_size_output group by total_regular_buffers, regular_buffer_size, total_buffer_size Thanks to Jonathan for an interesting question and a chance to explore some of the details of Extended Event internals. - Mike

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• Fan running continously on HP Pavillion G6 notebook with 12.04.1 LTS, help please?

  - by Ankit

  Fan is running continously on my HP Pavillion G6 notebook with 12.04.1 LTS. My system specifications are:- Ram: 6Gb Graphics Card:- 1 GB (AMD Raedon 64XX). HDD: 540 GB. Please find a list of ACPI errors logs from dmesg as follows:- buffer@ankit:~$ dmesg | grep ACPI -i [ 0.000000] BIOS-e820: 000000009cebf000 - 000000009cfbf000 (ACPI NVS) [ 0.000000] BIOS-e820: 000000009cfbf000 - 000000009cfff000 (ACPI data) [ 0.000000] ACPI: RSDP 00000000000fe020 00024 (v02 HPQOEM) [ 0.000000] ACPI: XSDT 000000009cffe120 00084 (v01 HPQOEM SLIC-MPC 00000001 01000013) [ 0.000000] ACPI: FACP 000000009cffc000 000F4 (v04 HPQOEM SLIC-MPC 00000001 MSFT 01000013) [ 0.000000] ACPI: DSDT 000000009cfec000 0C132 (v01 HP 1670 00000000 MSFT 01000013) [ 0.000000] ACPI: FACS 000000009cf6c000 00040 [ 0.000000] ACPI: ASF! 000000009cffd000 000A5 (v32 HP 1670 00000001 MSFT 01000013) [ 0.000000] ACPI: HPET 000000009cffb000 00038 (v01 HP 1670 00000001 MSFT 01000013) [ 0.000000] ACPI: APIC 000000009cffa000 0008C (v02 HP 1670 00000001 MSFT 01000013) [ 0.000000] ACPI: MCFG 000000009cff9000 0003C (v01 HP 1670 00000001 MSFT 01000013) [ 0.000000] ACPI: SLIC 000000009cfeb000 00176 (v01 HPQOEM SLIC-MPC 00000001 MSFT 01000013) [ 0.000000] ACPI: SSDT 000000009cfea000 00D52 (v01 HP 1670 00001000 MSFT 01000013) [ 0.000000] ACPI: BOOT 000000009cfe8000 00028 (v01 HP 1670 00000001 MSFT 01000013) [ 0.000000] ACPI: ASPT 000000009cfe5000 00034 (v07 HP 1670 00000001 MSFT 01000013) [ 0.000000] ACPI: SSDT 000000009cfe4000 00780 (v01 HP 1670 00003000 INTL 20100121) [ 0.000000] ACPI: SSDT 000000009cfe3000 00996 (v01 HP 1670 00003000 INTL 20100121) [ 0.000000] ACPI: SSDT 000000009cfdd000 0219F (v01 HP 1670 00001000 INTL 20100121) [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] ACPI: PM-Timer IO Port: 0x408 [ 0.000000] ACPI: Local APIC address 0xfee00000 [ 0.000000] ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x03] lapic_id[0x02] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x04] lapic_id[0x03] enabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x05] lapic_id[0x00] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x06] lapic_id[0x00] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x07] lapic_id[0x00] disabled) [ 0.000000] ACPI: LAPIC (acpi_id[0x08] lapic_id[0x00] disabled) [ 0.000000] ACPI: IOAPIC (id[0x00] address[0xfec00000] gsi_base[0]) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl) [ 0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level) [ 0.000000] ACPI: IRQ0 used by override. [ 0.000000] ACPI: IRQ2 used by override. [ 0.000000] ACPI: IRQ9 used by override. [ 0.000000] Using ACPI (MADT) for SMP configuration information [ 0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000 [ 0.005902] ACPI: Core revision 20110623 [ 0.536006] PM: Registering ACPI NVS region at 9cebf000 (1048576 bytes) [ 0.538423] ACPI FADT declares the system doesn't support PCIe ASPM, so disable it [ 0.538429] ACPI: bus type pci registered [ 0.656088] ACPI: Added _OSI(Module Device) [ 0.656094] ACPI: Added _OSI(Processor Device) [ 0.656098] ACPI: Added _OSI(3.0 _SCP Extensions) [ 0.656103] ACPI: Added _OSI(Processor Aggregator Device) [ 0.660335] ACPI: EC: Look up EC in DSDT [ 0.664416] ACPI: Executed 1 blocks of module-level executable AML code [ 0.728303] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored [ 0.729536] ACPI: SSDT 000000009ce70798 00727 (v01 PmRef Cpu0Cst 00003001 INTL 20100121) [ 0.730622] ACPI: Dynamic OEM Table Load: [ 0.730630] ACPI: SSDT (null) 00727 (v01 PmRef Cpu0Cst 00003001 INTL 20100121) [ 0.760829] ACPI: SSDT 000000009ce71a98 00303 (v01 PmRef ApIst 00003000 INTL 20100121) [ 0.761992] ACPI: Dynamic OEM Table Load: [ 0.761998] ACPI: SSDT (null) 00303 (v01 PmRef ApIst 00003000 INTL 20100121) [ 0.792451] ACPI: SSDT 000000009ce6fd98 00119 (v01 PmRef ApCst 00003000 INTL 20100121) [ 0.793521] ACPI: Dynamic OEM Table Load: [ 0.793528] ACPI: SSDT (null) 00119 (v01 PmRef ApCst 00003000 INTL 20100121) [ 0.872981] ACPI: Interpreter enabled [ 0.872992] ACPI: (supports S0 S3 S4 S5) [ 0.873064] ACPI: Using IOAPIC for interrupt routing [ 0.882723] ACPI: EC: GPE = 0x16, I/O: command/status = 0x66, data = 0x62 [ 0.883072] ACPI: No dock devices found. [ 0.883084] PCI: Using host bridge windows from ACPI; if necessary, use "pci=nocrs" and report a bug [ 0.883882] ACPI: PCI Root Bridge [PCI0] (domain 0000 [bus 00-fe]) [ 0.924187] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT] [ 0.924509] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP01._PRT] [ 0.924581] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP02._PRT] [ 0.924659] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP03._PRT] [ 0.924758] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PEG0._PRT] [ 0.924973] pci0000:00: Requesting ACPI _OSC control (0x1d) [ 0.925064] pci0000:00: ACPI _OSC request failed (AE_ERROR), returned control mask: 0x1d [ 0.925069] ACPI _OSC control for PCIe not granted, disabling ASPM [ 0.930212] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 10 *11 12 14 15) [ 0.930327] ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 10 *11 12 14 15) [ 0.930436] ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 10 *11 12 14 15) [ 0.930547] ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 *10 11 12 14 15) [ 0.930655] ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.930764] ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.930873] ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 10 *11 12 14 15) [ 0.930979] ACPI: PCI Interrupt Link [LNKH] (IRQs 1 3 4 5 6 10 11 12 14 15) *0, disabled. [ 0.932142] PCI: Using ACPI for IRQ routing [ 0.967119] pnp: PnP ACPI init [ 0.967151] ACPI: bus type pnp registered [ 0.968356] pnp 00:00: Plug and Play ACPI device, IDs PNP0a08 PNP0a03 (active) [ 0.968516] pnp 00:01: Plug and Play ACPI device, IDs PNP0200 (active) [ 0.968586] pnp 00:02: Plug and Play ACPI device, IDs INT0800 (active) [ 0.968818] pnp 00:03: Plug and Play ACPI device, IDs PNP0103 (active) [ 0.968915] pnp 00:04: Plug and Play ACPI device, IDs PNP0c04 (active) [ 0.969206] system 00:05: Plug and Play ACPI device, IDs PNP0c02 (active) [ 0.969293] pnp 00:06: Plug and Play ACPI device, IDs PNP0b00 (active) [ 0.969418] pnp 00:07: Plug and Play ACPI device, IDs PNP0303 (active) [ 0.969528] pnp 00:08: Plug and Play ACPI device, IDs SYN1e3f SYN1e00 SYN0002 PNP0f13 (active) [ 0.969969] system 00:09: Plug and Play ACPI device, IDs PNP0c02 (active) [ 0.970574] system 00:0a: Plug and Play ACPI device, IDs PNP0c01 (active) [ 0.970617] pnp: PnP ACPI: found 11 devices [ 0.970622] ACPI: ACPI bus type pnp unregistered [ 1.138064] ACPI: Deprecated procfs I/F for AC is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared [ 1.138331] ACPI: AC Adapter [ACAD] (off-line) [ 1.139068] ACPI: Lid Switch [LID0] [ 1.139176] ACPI: Power Button [PWRB] [ 1.139286] ACPI: Power Button [PWRF] [ 1.144637] ACPI: Thermal Zone [TZ01] (0 C) [ 1.144677] ACPI: Deprecated procfs I/F for battery is loaded, please retry with CONFIG_ACPI_PROCFS_POWER cleared [ 1.144693] ACPI: Battery Slot [BAT0] (battery present) [ 1.206926] ACPI: Battery Slot [BAT0] (battery present) [ 13.176993] acpi device:1a: registered as cooling_device4 [ 13.179931] acpi device:1b: registered as cooling_device5 [ 13.180221] ACPI: Video Device [VGA] (multi-head: yes rom: no post: no) [ 13.219589] acpi device:20: registered as cooling_device6 [ 13.220851] ACPI: Video Device [GFX0] (multi-head: yes rom: no post: no) [ 1649.915134] i8042 aux 00:08: wake-up capability disabled by ACPI [ 1649.915147] i8042 kbd 00:07: wake-up capability enabled by ACPI [ 1650.931028] r8169 0000:03:00.0: wake-up capability enabled by ACPI [ 1650.954743] ehci_hcd 0000:00:1d.0: wake-up capability enabled by ACPI [ 1650.978733] ehci_hcd 0000:00:1a.0: wake-up capability enabled by ACPI [ 1651.010950] ACPI: Preparing to enter system sleep state S3 [ 1652.251505] ACPI: Low-level resume complete [ 1652.360953] ACPI: Waking up from system sleep state S3 [ 1652.427581] ehci_hcd 0000:00:1a.0: wake-up capability disabled by ACPI [ 1652.435579] ehci_hcd 0000:00:1d.0: wake-up capability disabled by ACPI [ 1652.437887] r8169 0000:03:00.0: wake-up capability disabled by ACPI [ 1652.506660] i8042 kbd 00:07: wake-up capability disabled by ACPI [ 1661.238234] ACPI Error: No handler for Region [CMS0] (ffff8801d5035558) [SystemCMOS] (20110623/evregion-373) [ 1661.238253] ACPI Error: Region SystemCMOS (ID=5) has no handler (20110623/exfldio-292) [ 1661.238268] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_._Q33] (Node ffff8801d5054de8), AE_NOT_EXIST (20110623/psparse-536) [ 3151.784288] i8042 aux 00:08: wake-up capability disabled by ACPI [ 3151.784301] i8042 kbd 00:07: wake-up capability enabled by ACPI [ 3152.797676] r8169 0000:03:00.0: wake-up capability enabled by ACPI [ 3152.821379] ehci_hcd 0000:00:1d.0: wake-up capability enabled by ACPI [ 3152.845367] ehci_hcd 0000:00:1a.0: wake-up capability enabled by ACPI [ 3152.877600] ACPI: Preparing to enter system sleep state S3 [ 3154.313213] ACPI: Low-level resume complete [ 3154.422297] ACPI: Waking up from system sleep state S3 [ 3154.489692] ehci_hcd 0000:00:1a.0: wake-up capability disabled by ACPI [ 3154.497667] ehci_hcd 0000:00:1d.0: wake-up capability disabled by ACPI [ 3154.505947] r8169 0000:03:00.0: wake-up capability disabled by ACPI [ 3154.568985] i8042 kbd 00:07: wake-up capability disabled by ACPI [ 3162.745149] ACPI Error: No handler for Region [CMS0] (ffff8801d5035558) [SystemCMOS] (20110623/evregion-373) [ 3162.745168] ACPI Error: Region SystemCMOS (ID=5) has no handler (20110623/exfldio-292) [ 3162.745183] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_._Q33] (Node ffff8801d5054de8), AE_NOT_EXIST (20110623/psparse-536) [ 6775.723501] ACPI Error: No handler for Region [CMS0] (ffff8801d5035558) [SystemCMOS] (20110623/evregion-373) [ 6775.723519] ACPI Error: Region SystemCMOS (ID=5) has no handler (20110623/exfldio-292) [ 6775.723535] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_._Q33] (Node ffff8801d5054de8), AE_NOT_EXIST (20110623/psparse-536) [10388.004760] ACPI Error: No handler for Region [CMS0] (ffff8801d5035558) [SystemCMOS] (20110623/evregion-373) [10388.004778] ACPI Error: Region SystemCMOS (ID=5) has no handler (20110623/exfldio-292) [10388.004801] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_._Q33] (Node ffff8801d5054de8), AE_NOT_EXIST (20110623/psparse-536) [10723.591930] i8042 aux 00:08: wake-up capability disabled by ACPI [10723.591942] i8042 kbd 00:07: wake-up capability enabled by ACPI [10724.607624] r8169 0000:03:00.0: wake-up capability enabled by ACPI [10724.631349] ehci_hcd 0000:00:1d.0: wake-up capability enabled by ACPI [10724.655339] ehci_hcd 0000:00:1a.0: wake-up capability enabled by ACPI [10724.687572] ACPI: Preparing to enter system sleep state S3 [10726.123176] ACPI: Low-level resume complete [10726.232181] ACPI: Waking up from system sleep state S3 [10726.303653] ehci_hcd 0000:00:1a.0: wake-up capability disabled by ACPI [10726.311648] ehci_hcd 0000:00:1d.0: wake-up capability disabled by ACPI [10726.315734] r8169 0000:03:00.0: wake-up capability disabled by ACPI [10726.379287] i8042 kbd 00:07: wake-up capability disabled by ACPI [10734.393523] ACPI Error: No handler for Region [CMS0] (ffff8801d5035558) [SystemCMOS] (20110623/evregion-373) [10734.393542] ACPI Error: Region SystemCMOS (ID=5) has no handler (20110623/exfldio-292) [10734.393557] ACPI Error: Method parse/execution failed [\_SB_.PCI0.LPCB.EC0_._Q33] (Node ffff8801d5054de8), AE_NOT_EXIST (20110623/ps Continuous sound from the fan is very annoying, any help would highly appreciated.

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• Teamviewer 8 on Kubuntu 13.04 won't start

  - by kirokko

  The problem is I can't run Teamviewer on Kubuntu. That problem exists for me since 12.10 and I as I remember, it was with the 7th version either. I download official package from officical web site, for 64 bit system. Install it, then install all dependencies (apt-get install -f). When I start it, window with License agreement appears and I can't agree with it, because I don't see anything, even mouse cursor is invisible on window area. Here's the trace of teamviewer from console: kirokko ~ $ teamviewer Init... Checking setup... Launching TeamViewer... fixme:service:scmdatabase_autostart_services Auto-start service L"MountMgr" failed to start: 2 fixme:service:scmdatabase_autostart_services Auto-start service L"PlugPlay" failed to start: 2 fixme:actctx:parse_depend_manifests Could not find dependent assembly L"Microsoft.Windows.Common-Controls" (6.0.0.0) fixme:heap:HeapSetInformation (nil) 1 (nil) 0 fixme:ole:CoInitializeSecurity ((nil),-1,(nil),(nil),0,3,(nil),0,(nil)) - stub! fixme:heap:HeapSetInformation (nil) 1 (nil) 0 fixme:process:SetProcessShutdownParameters (00000100, 00000000): partial stub. fixme:resource:GetGuiResources (0xffffffff,0): stub fixme:win:EnumDisplayDevicesW ((null),0,0x32dc60,0x00000000), stub! fixme:win:EnumDisplayDevicesW (L"\\\\.\\DISPLAY1",0,0x32d918,0x00000000), stub! fixme:win:EnumDisplayDevicesW ((null),1,0x32dc60,0x00000000), stub! fixme:winhttp:WinHttpDetectAutoProxyConfigUrl discovery via DHCP not supported fixme:msg:ChangeWindowMessageFilter 233 00000001 fixme:msg:ChangeWindowMessageFilter 4a 00000001 fixme:msg:ChangeWindowMessageFilter 407 00000001 fixme:msg:ChangeWindowMessageFilter 49 00000001 fixme:bitmap:CreateBitmapIndirect planes = 0 fixme:bitmap:CreateBitmapIndirect planes = 0 fixme:wtsapi:WTSRegisterSessionNotification Stub 0x1005a 0x00000000 err:ole:marshal_object couldn't get IPSFactory buffer for interface {00000131-0000-0000-c000-000000000046} err:ole:marshal_object couldn't get IPSFactory buffer for interface {00000122-0000-0000-c000-000000000046} err:ole:StdMarshalImpl_MarshalInterface Failed to create ifstub, hres=0x80040155 err:ole:CoMarshalInterface Failed to marshal the interface {00000122-0000-0000-c000-000000000046}, 80040155 fixme:msg:ChangeWindowMessageFilter c04f 00000001 fixme:richedit:ME_HandleMessage EM_SETFONTSIZE: stub fixme:dbghelp:elf_search_auxv can't find symbol in module wine: Unhandled page fault on read access to 0xffffffff at address 0xf7585c5a (thread 0009), starting debugger... err:seh:start_debugger Couldn't start debugger ("winedbg --auto 8 5552") (2) Read the Wine Developers Guide on how to set up winedbg or another debugger What's the problem? The same problem was when I had Ubuntu 12.10 installed, then the same problem was when I installed Mint 14 KDE (Kubuntu 12.10). Now I moved to Kubuntu 13.04 and the problem still exists.

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• Overwriting TFS Web Services

  - by javarg

  In this blog I will share a technique I used to intercept TFS Web Services calls. This technique is a very invasive one and requires you to overwrite default TFS Web Services behavior. I only recommend taking such an approach when other means of TFS extensibility fail to provide the same functionality (this is not a supported TFS extensibility point). For instance, intercepting and aborting a Work Item change operation could be implemented using this approach (consider TFS Subscribers functionality before taking this approach, check Martin’s post about subscribers). So let’s get started. The technique consists in versioning TFS Web Services .asmx service classes. If you look into TFS’s ASMX services you will notice that versioning is supported by creating a class hierarchy between different product versions. For instance, let’s take the Work Item management service .asmx. Check the following .asmx file located at: %Program Files%\Microsoft Team Foundation Server 2010\Application Tier\Web Services\_tfs_resources\WorkItemTracking\v3.0\ClientService.asmx The .asmx references the class Microsoft.TeamFoundation.WorkItemTracking.Server.ClientService3: <%-- Copyright (c) Microsoft Corporation. All rights reserved. --%> <%@ webservice language="C#" Class="Microsoft.TeamFoundation.WorkItemTracking.Server.ClientService3" %> .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } The inheritance hierarchy for this service class follows: Note the naming convention used for service versioning (ClientService3, ClientService2, ClientService). We will need to overwrite the latest service version provided by the product (in this case ClientService3 for TFS 2010). The following example intercepts and analyzes WorkItem fields. Suppose we need to validate state changes with more advanced logic other than the provided validations/constraints of the process template. Important: Backup the original .asmx file and create one of your own. Create a Visual Studio Web App Project and include a new ASMX Web Service in the project Add the following references to the project (check the folder %Program Files%\Microsoft Team Foundation Server 2010\Application Tier\Web Services\bin\): Microsoft.TeamFoundation.Framework.Server.dll Microsoft.TeamFoundation.Server.dll Microsoft.TeamFoundation.Server.dll Microsoft.TeamFoundation.WorkItemTracking.Client.QueryLanguage.dll Microsoft.TeamFoundation.WorkItemTracking.Server.DataAccessLayer.dll Microsoft.TeamFoundation.WorkItemTracking.Server.DataServices.dll Replace the default service implementation with the something similar to the following code: Code Snippet /// <summary> /// Inherit from ClientService3 to overwrite default Implementation /// </summary> [WebService(Namespace = "http://schemas.microsoft.com/TeamFoundation/2005/06/WorkItemTracking/ClientServices/03", Description = "Custom Team Foundation WorkItemTracking ClientService Web Service")] public class CustomTfsClientService : ClientService3 {     [WebMethod, SoapHeader("requestHeader", Direction = SoapHeaderDirection.In)]     public override bool BulkUpdate(         XmlElement package,         out XmlElement result,         MetadataTableHaveEntry[] metadataHave,         out string dbStamp,         out Payload metadata)     {         var xe = XElement.Parse(package.OuterXml);         // We only intercept WorkItems Updates (we can easily extend this sample to capture any operation).         var wit = xe.Element("UpdateWorkItem");         if (wit != null)         {             if (wit.Attribute("WorkItemID") != null)             {                 int witId = (int)wit.Attribute("WorkItemID");                 // With this Id. I can query TFS for more detailed information, using TFS Client API (assuming the WIT already exists).                 var stateChanged =                     wit.Element("Columns").Elements("Column").FirstOrDefault(c => (string)c.Attribute("Column") == "System.State");                 if (stateChanged != null)                 {                     var newStateName = stateChanged.Element("Value").Value;                     if (newStateName == "Resolved")                     {                         throw new Exception("Cannot change state to Resolved!");                     }                 }             }         }         // Finally, we call base method implementation         return base.BulkUpdate(package, out result, metadataHave, out dbStamp, out metadata);     } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } 4. Build your solution and overwrite the original .asmx with the new implementation referencing our new service version (don’t forget to backup it up first). 5. Copy your project’s .dll into the following path: %Program Files%\Microsoft Team Foundation Server 2010\Application Tier\Web Services\bin 6. Try saving a WorkItem into the Resolved state. Enjoy!

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• Reverse-engineer SharePoint fields, content types and list instance—Part3

  - by ybbest

  Reverse-engineer SharePoint fields, content types and list instance—Part1 Reverse-engineer SharePoint fields, content types and list instance—Part2 Reverse-engineer SharePoint fields, content types and list instance—Part3 In Part 1 and Part 2 of this series, I demonstrate how to reverse engineer SharePoint fields, content types. In this post I will cover how to include lookup fields in the content type and create list instance using these content types. Firstly, I will cover how to create list instance and bind the custom content type to the custom list. 1. Create a custom list using list Instance item in visual studio and select custom list. 2. In the feature receiver add the Department content type to Department list and remove the item content type. C# AddContentTypeToList(web, “Department”, ” Department”); private void AddContentTypeToList(SPWeb web,string listName, string contentTypeName) { SPList list = web.Lists.TryGetList(listName); list.OnQuickLaunch = true; list.ContentTypesEnabled = true; list.Update(); SPContentType employeeContentType = web.ContentTypes[contentTypeName]; list.ContentTypes.Add(employeeContentType); list.ContentTypes["Item"].Delete(); list.Update(); } Next, I will cover how to create the lookup fields. The difference between creating a normal field and lookup fields is that you need to create the lookup fields after the lists are created. This is because the lookup fields references fields from the foreign list. 1. In your solution, you need to create a feature that deploys the list before deploying the lookup fields. 2. You need to write the following code in the feature receiver to add the lookup columns in the ContentType. C# //add the lookup fields SPFieldLookup departmentField = EnsureLookupField(currentWeb, “YBBESTDepartment”, currentWeb.Lists["DepartmentList"].ID, “Title”); //add to the content types SPContentType employeeContentType = currentWeb.ContentTypes["Employee"]; //Add the lookup fields as SPFieldLink employeeContentType.FieldLinks.Add(new SPFieldLink(departmentField)); employeeContentType.Update(true); private static SPFieldLookup EnsureLookupField(SPWeb currentWeb, String sFieldName, Guid LookupListID, String sLookupField) { //add the lookup fields SPFieldLookup lookupField = null; try { lookupField = currentWeb.Fields[sFieldName] as SPFieldLookup; } catch (Exception e) { } if (lookupField == null) { currentWeb.Fields.AddLookup(sFieldName, LookupListID, true); currentWeb.Update(); lookupField = currentWeb.Fields[sFieldName] as SPFieldLookup; lookupField.LookupField = sLookupField; lookupField.Group = “YBBEST”; lookupField.Required = true; lookupField.Update(); } return lookupField; }

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• SQL SERVER – Implementing IF … THEN in SQL SERVER with CASE Statements

  - by Pinal Dave

  Here is the question I received the other day in email. “I have business logic in my .net code and we use lots of IF … ELSE logic in our code. I want to move the logic to Stored Procedure. How do I convert the logic of the IF…ELSE to T-SQL. Please help.” I have previously received this answer few times. As data grows the performance problems grows more as well. Here is the how you can convert the logic of IF…ELSE in to CASE statement of SQL Server. Here are few of the examples: Example 1: If you are logic is as following: IF -1 < 1 THEN ‘TRUE’ ELSE ‘FALSE’ You can just use CASE statement as follows: -- SQL Server 2008 and earlier version solution SELECT CASE WHEN -1 < 1 THEN 'TRUE' ELSE 'FALSE' END AS Result GO -- SQL Server 2012 solution SELECT IIF ( -1 < 1, 'TRUE', 'FALSE' ) AS Result; GO If you are interested further about how IIF of SQL Server 2012 works read the blog post which I have written earlier this year . Well, in our example the condition which we have used is pretty simple but in the real world the logic can very complex. Let us see two different methods of how we an do CASE statement when we have logic based on the column of the table. Example 2: If you are logic is as following: IF BusinessEntityID < 10 THEN FirstName ELSE IF BusinessEntityID > 10 THEN PersonType FROM Person.Person p You can convert the same in the T-SQL as follows: SELECT CASE WHEN BusinessEntityID < 10 THEN FirstName WHEN BusinessEntityID > 10 THEN PersonType END AS Col, BusinessEntityID, Title, PersonType FROM Person.Person p However, if your logic is based on multiple column and conditions are complicated, you can follow the example 3. Example 3: If you are logic is as following: IF BusinessEntityID < 10 THEN FirstName ELSE IF BusinessEntityID > 10 AND Title IS NOT NULL THEN PersonType ELSE IF Title = 'Mr.' THEN 'Mister' ELSE 'No Idea' FROM Person.Person p You can convert the same in the T-SQL as follows: SELECT CASE WHEN BusinessEntityID < 10 THEN FirstName WHEN BusinessEntityID > 10 AND Title IS NOT NULL THEN PersonType WHEN Title = 'Mr.' THEN 'Mister' ELSE 'No Idea' END AS Col, BusinessEntityID, Title, PersonType FROM Person.Person p I hope this solution is good enough to convert the IF…ELSE logic to CASE Statement in SQL Server. Let me know if you need further information about the same. Reference: Pinal Dave (http://blog.sqlauthority.com)Filed under: PostADay, SQL, SQL Authority, SQL Function, SQL Query, SQL Server, SQL Tips and Tricks, T SQL

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• Collision in Tiled Map - LibGDX

  - by user43353

  I have collision code that deals with left or right or top or bottom. I am using Tiled Map with LibGDX. Question is: How do I detect collision with other cells by all 4 sides, and not specifically by left/right or top/bottom. Here is my top/bottom and left/right collision code: private boolean isCellBlocked(float x, float y) { Cell cell = collisionLayer.getCell((int) (x / collisionLayer.getTileWidth()), (int) (y / collisionLayer.getTileHeight())); return cell != null && cell.getTile() != null && cell.getTile().getProperties().containsKey(blockedKey); } public boolean collidesRight() { for(float step = 0; step < getHeight(); step += collisionLayer.getTileHeight() / 2) if(isCellBlocked(getX() + getWidth(), getY() + step)) return true; return false; } public boolean collidesLeft() { for(float step = 0; step < getHeight(); step += collisionLayer.getTileHeight() / 2) if(isCellBlocked(getX(), getY() + step)) return true; return false; } public boolean collidesTop() { for(float step = 0; step < getWidth(); step += collisionLayer.getTileWidth() / 2) if(isCellBlocked(getX() + step, getY() + getHeight())) return true; return false; } public boolean collidesBottom() { for(float step = 0; step < getWidth(); step += collisionLayer.getTileWidth() / 2) if(isCellBlocked(getX() + step, getY())) return true; return false; } What I'm trying to achieve is simple: I'm trying to make code that will detect by all 4 sides, collidesRight + collidesLeft + collidesTop + collidesBottom in one boolean. For some reason, I cant seem to figure it out. I tried to use Rectangles (the Java Class) on the specific tile I want to be detected, but was messy and I have multiple maps. Having a Rectangle (from Java's API) around the player is no problem. It's just the tiles I want to be detected are the main issues as they cause messy code when used with the Rectangle class. Im trying to minimize the amount of code....

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• C# tip: do not use “is” type, if you will need cast “as” later

  - by Michael Freidgeim

  We have a debate with one of my collegues, is it agood style to check, if the object of particular style, and then cast  as this  type. The perfect answer of Jon Skeet   and answers in Cast then check or check then cast? confirmed my point.//good    var coke = cola as CocaCola;    if (coke != null)    {        // some unique coca-cola only code    }    //worse    if (cola is CocaCola)    {        var coke =  cola as CocaCola;        // some unique coca-cola only code here.    }

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• Use Extension method to write cleaner code

  - by Fredrik N

  This blog post will show you step by step to refactoring some code to be more readable (at least what I think). Patrik Löwnedahl gave me some of the ideas when we where talking about making code much cleaner. The following is an simple application that will have a list of movies (Normal and Transfer). The task of the application is to calculate the total sum of each movie and also display the price of each movie. class Program { enum MovieType { Normal, Transfer } static void Main(string[] args) { var movies = GetMovies(); int totalPriceOfNormalMovie = 0; int totalPriceOfTransferMovie = 0; foreach (var movie in movies) { if (movie == MovieType.Normal) { totalPriceOfNormalMovie += 2; Console.WriteLine("$2"); } else if (movie == MovieType.Transfer) { totalPriceOfTransferMovie += 3; Console.WriteLine("$3"); } } } private static IEnumerable<MovieType> GetMovies() { return new List<MovieType>() { MovieType.Normal, MovieType.Transfer, MovieType.Normal }; } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } In the code above I’m using an enum, a good way to add types (isn’t it ;)). I also use one foreach loop to calculate the price, the loop has a condition statement to check what kind of movie is added to the list of movies. I want to reuse the foreach only to increase performance and let it do two things (isn’t that smart of me?! ;)). First of all I can admit, I’m not a big fan of enum. Enum often results in ugly condition statements and can be hard to maintain (if a new type is added we need to check all the code in our app to see if we use the enum somewhere else). I don’t often care about pre-optimizations when it comes to write code (of course I have performance in mind). I rather prefer to use two foreach to let them do one things instead of two. So based on what I don’t like and Martin Fowler’s Refactoring catalog, I’m going to refactoring this code to what I will call a more elegant and cleaner code. First of all I’m going to use Split Loop to make sure the foreach will do one thing not two, it will results in two foreach (Don’t care about performance here, if the results will results in bad performance, you can refactoring later, but computers are so fast to day, so iterating through a list is not often so time consuming.) Note: The foreach actually do four things, will come to is later. var movies = GetMovies(); int totalPriceOfNormalMovie = 0; int totalPriceOfTransferMovie = 0; foreach (var movie in movies) { if (movie == MovieType.Normal) { totalPriceOfNormalMovie += 2; Console.WriteLine("$2"); } } foreach (var movie in movies) { if (movie == MovieType.Transfer) { totalPriceOfTransferMovie += 3; Console.WriteLine("$3"); } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } To remove the condition statement we can use the Where extension method added to the IEnumerable<T> and is located in the System.Linq namespace: foreach (var movie in movies.Where( m => m == MovieType.Normal)) { totalPriceOfNormalMovie += 2; Console.WriteLine("$2"); } foreach (var movie in movies.Where( m => m == MovieType.Transfer)) { totalPriceOfTransferMovie += 3; Console.WriteLine("$3"); } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } The above code will still do two things, calculate the total price, and display the price of the movie. I will not take care of it at the moment, instead I will focus on the enum and try to remove them. One way to remove enum is by using the Replace Conditional with Polymorphism. So I will create two classes, one base class called Movie, and one called MovieTransfer. The Movie class will have a property called Price, the Movie will now hold the price:   public class Movie { public virtual int Price { get { return 2; } } } public class MovieTransfer : Movie { public override int Price { get { return 3; } } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } The following code has no enum and will use the new Movie classes instead: class Program { static void Main(string[] args) { var movies = GetMovies(); int totalPriceOfNormalMovie = 0; int totalPriceOfTransferMovie = 0; foreach (var movie in movies.Where( m => m is Movie)) { totalPriceOfNormalMovie += movie.Price; Console.WriteLine(movie.Price); } foreach (var movie in movies.Where( m => m is MovieTransfer)) { totalPriceOfTransferMovie += movie.Price; Console.WriteLine(movie.Price); } } private static IEnumerable<Movie> GetMovies() { return new List<Movie>() { new Movie(), new MovieTransfer(), new Movie() }; } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; }   If you take a look at the foreach now, you can see it still actually do two things, calculate the price and display the price. We can do some more refactoring here by using the Sum extension method to calculate the total price of the movies:   static void Main(string[] args) { var movies = GetMovies(); int totalPriceOfNormalMovie = movies.Where(m => m is Movie) .Sum(m => m.Price); int totalPriceOfTransferMovie = movies.Where(m => m is MovieTransfer) .Sum(m => m.Price); foreach (var movie in movies.Where( m => m is Movie)) Console.WriteLine(movie.Price); foreach (var movie in movies.Where( m => m is MovieTransfer)) Console.WriteLine(movie.Price); } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Now when the Movie object will hold the price, there is no need to use two separate foreach to display the price of the movies in the list, so we can use only one instead: foreach (var movie in movies) Console.WriteLine(movie.Price); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } If we want to increase the Maintainability index we can use the Extract Method to move the Sum of the prices into two separate methods. The name of the method will explain what we are doing: static void Main(string[] args) { var movies = GetMovies(); int totalPriceOfMovie = TotalPriceOfMovie(movies); int totalPriceOfTransferMovie = TotalPriceOfMovieTransfer(movies); foreach (var movie in movies) Console.WriteLine(movie.Price); } private static int TotalPriceOfMovieTransfer(IEnumerable<Movie> movies) { return movies.Where(m => m is MovieTransfer) .Sum(m => m.Price); } private static int TotalPriceOfMovie(IEnumerable<Movie> movies) { return movies.Where(m => m is Movie) .Sum(m => m.Price); } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Now to the last thing, I love the ForEach method of the List<T>, but the IEnumerable<T> doesn’t have it, so I created my own ForEach extension, here is the code of the ForEach extension method: public static class LoopExtensions { public static void ForEach<T>(this IEnumerable<T> values, Action<T> action) { Contract.Requires(values != null); Contract.Requires(action != null); foreach (var v in values) action(v); } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } I will now replace the foreach by using this ForEach method: static void Main(string[] args) { var movies = GetMovies(); int totalPriceOfMovie = TotalPriceOfMovie(movies); int totalPriceOfTransferMovie = TotalPriceOfMovieTransfer(movies); movies.ForEach(m => Console.WriteLine(m.Price)); } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } The ForEach on the movies will now display the price of the movie, but maybe we want to display the name of the movie etc, so we can use Extract Method by moving the lamdba expression into a method instead, and let the method explains what we are displaying: movies.ForEach(DisplayMovieInfo); private static void DisplayMovieInfo(Movie movie) { Console.WriteLine(movie.Price); } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } Now the refactoring is done! Here is the complete code:   class Program { static void Main(string[] args) { var movies = GetMovies(); int totalPriceOfMovie = TotalPriceOfMovie(movies); int totalPriceOfTransferMovie = TotalPriceOfMovieTransfer(movies); movies.ForEach(DisplayMovieInfo); } private static void DisplayMovieInfo(Movie movie) { Console.WriteLine(movie.Price); } private static int TotalPriceOfMovieTransfer(IEnumerable<Movie> movies) { return movies.Where(m => m is MovieTransfer) .Sum(m => m.Price); } private static int TotalPriceOfMovie(IEnumerable<Movie> movies) { return movies.Where(m => m is Movie) .Sum(m => m.Price); } private static IEnumerable<Movie> GetMovies() { return new List<Movie>() { new Movie(), new MovieTransfer(), new Movie() }; } } public class Movie { public virtual int Price { get { return 2; } } } public class MovieTransfer : Movie { public override int Price { get { return 3; } } } pulbic static class LoopExtensions { public static void ForEach<T>(this IEnumerable<T> values, Action<T> action) { Contract.Requires(values != null); Contract.Requires(action != null); foreach (var v in values) action(v); } } .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } I think the new code is much cleaner than the first one, and I love the ForEach extension on the IEnumerable<T>, I can use it for different kind of things, for example: movies.Where(m => m is Movie) .ForEach(DoSomething); .csharpcode, .csharpcode pre { font-size: small; color: black; font-family: consolas, "Courier New", courier, monospace; background-color: #ffffff; /*white-space: pre;*/ } .csharpcode pre { margin: 0em; } .csharpcode .rem { color: #008000; } .csharpcode .kwrd { color: #0000ff; } .csharpcode .str { color: #006080; } .csharpcode .op { color: #0000c0; } .csharpcode .preproc { color: #cc6633; } .csharpcode .asp { background-color: #ffff00; } .csharpcode .html { color: #800000; } .csharpcode .attr { color: #ff0000; } .csharpcode .alt { background-color: #f4f4f4; width: 100%; margin: 0em; } .csharpcode .lnum { color: #606060; } By using the Where and ForEach extension method, some if statements can be removed and will make the code much cleaner. But the beauty is in the eye of the beholder. What would you have done different, what do you think will make the first example in the blog post look much cleaner than my results, comments are welcome! If you want to know when I will publish a new blog post, you can follow me on twitter: http://www.twitter.com/fredrikn

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• Get vertex colors from fbx (OpenGL, FBX SDK)

  - by instancedName

  I'm kinda stuck with this one. I managed to get vertex positions, indices, normals, but I don't quite understand how te get vertex colors. I need them to fill my buffer. I tried funcion mesh-GetElementVertexColorCount() and then to iterate trough all of them, but it returns zero. I alse tried to get layer, and then use layer-GetVertexColors(), but it returns NULL pointer. Can anyone help me with this one?

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• Frequent Disconnects ubuntu desktop 12.10 x64 intel 82579V e1000e

  - by user112055

  I'm having frequent disconnects with my new install of Ubuntu 12.10. I tried updating the kernel driver to the latest intel release to no avail. My expertise is spent. It happens anywhere between 1 min and 10 min. Any ideas? syslog: Dec 1 13:51:39 andromeda kernel: [ 972.188809] audit_printk_skb: 6 callbacks suppressed Dec 1 13:51:39 andromeda kernel: [ 972.188813] type=1701 audit(1354398699.418:199): auid=4294967295 uid=1000 gid=1000 ses=4294967295 pid=6039 comm="chrome" reason="seccomp" sig=0 syscall=4 compat=0 ip=0x7f26777d9205 code=0x50000 Dec 1 13:51:39 andromeda kernel: [ 972.188817] type=1701 audit(1354398699.418:200): auid=4294967295 uid=1000 gid=1000 ses=4294967295 pid=6039 comm="chrome" reason="seccomp" sig=0 syscall=4 compat=0 ip=0x7f26777d9205 code=0x50000 Dec 1 13:51:39 andromeda kernel: [ 972.188820] type=1701 audit(1354398699.418:201): auid=4294967295 uid=1000 gid=1000 ses=4294967295 pid=6039 comm="chrome" reason="seccomp" sig=0 syscall=4 compat=0 ip=0x7f26777d9205 code=0x50000 Dec 1 13:51:39 andromeda kernel: [ 972.188823] type=1701 audit(1354398699.418:202): auid=4294967295 uid=1000 gid=1000 ses=4294967295 pid=6039 comm="chrome" reason="seccomp" sig=0 syscall=4 compat=0 ip=0x7f26777d9205 code=0x50000 Dec 1 13:51:39 andromeda kernel: [ 972.188825] type=1701 audit(1354398699.418:203): auid=4294967295 uid=1000 gid=1000 ses=4294967295 pid=6039 comm="chrome" reason="seccomp" sig=0 syscall=4 compat=0 ip=0x7f26777d9205 code=0x50000 Dec 1 13:51:39 andromeda kernel: [ 972.331419] type=1701 audit(1354398699.558:204): auid=4294967295 uid=1000 gid=1000 ses=4294967295 pid=6039 comm="chrome" reason="seccomp" sig=0 syscall=2 compat=0 ip=0x7f26777d96b0 code=0x50000 Dec 1 13:53:12 andromeda NetworkManager[1115]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Dec 1 13:53:12 andromeda kernel: [ 1064.894387] e1000e: e1000e: eth0 NIC Link is Down Dec 1 13:53:16 andromeda NetworkManager[1115]: <info> (eth0): device state change: activated -> unavailable (reason 'carrier-changed') [100 20 40] Dec 1 13:53:16 andromeda NetworkManager[1115]: <info> (eth0): deactivating device (reason 'carrier-changed') [40] Dec 1 13:53:16 andromeda NetworkManager[1115]: <info> (eth0): canceled DHCP transaction, DHCP client pid 5946 Dec 1 13:53:16 andromeda avahi-daemon[890]: Withdrawing address record for fe80::ea40:f2ff:fee2:4d86 on eth0. Dec 1 13:53:16 andromeda avahi-daemon[890]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::ea40:f2ff:fee2:4d86. Dec 1 13:53:16 andromeda avahi-daemon[890]: Interface eth0.IPv6 no longer relevant for mDNS. Dec 1 13:53:16 andromeda kernel: [ 1069.025288] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready Dec 1 13:53:16 andromeda avahi-daemon[890]: Withdrawing address record for 192.168.11.17 on eth0. Dec 1 13:53:16 andromeda avahi-daemon[890]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.11.17. Dec 1 13:53:16 andromeda avahi-daemon[890]: Interface eth0.IPv4 no longer relevant for mDNS. Dec 1 13:53:16 andromeda NetworkManager[1115]: <warn> DNS: plugin dnsmasq update failed Dec 1 13:53:16 andromeda NetworkManager[1115]: <info> ((null)): removing resolv.conf from /sbin/resolvconf Dec 1 13:53:16 andromeda dnsmasq[1907]: setting upstream servers from DBus Dec 1 13:53:16 andromeda dbus[800]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper) Dec 1 13:53:16 andromeda dbus[800]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> (eth0): carrier now ON (device state 20) Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> (eth0): device state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40] Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Auto-activating connection '82579V'. Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) starting connection '82579V' Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> (eth0): device state change: disconnected -> prepare (reason 'none') [30 40 0] Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled... Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started... Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled... Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete. Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting... Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> (eth0): device state change: prepare -> config (reason 'none') [40 50 0] Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful. Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled. Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete. Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started... Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> (eth0): device state change: config -> ip-config (reason 'none') [50 70 0] Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Beginning DHCPv4 transaction (timeout in 45 seconds) Dec 1 13:53:32 andromeda kernel: [ 1084.938042] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Dec 1 13:53:32 andromeda kernel: [ 1084.938049] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Dec 1 13:53:32 andromeda kernel: [ 1084.938815] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> dhclient started with pid 6080 Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete. Dec 1 13:53:32 andromeda dhclient: Internet Systems Consortium DHCP Client 4.2.4 Dec 1 13:53:32 andromeda dhclient: Copyright 2004-2012 Internet Systems Consortium. Dec 1 13:53:32 andromeda dhclient: All rights reserved. Dec 1 13:53:32 andromeda dhclient: For info, please visit https://www.isc.org/software/dhcp/ Dec 1 13:53:32 andromeda dhclient: Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> (eth0): DHCPv4 state changed nbi -> preinit Dec 1 13:53:32 andromeda dhclient: Listening on LPF/eth0/e8:40:f2:e2:4d:86 Dec 1 13:53:32 andromeda dhclient: Sending on LPF/eth0/e8:40:f2:e2:4d:86 Dec 1 13:53:32 andromeda dhclient: Sending on Socket/fallback Dec 1 13:53:32 andromeda dhclient: DHCPREQUEST of 192.168.11.17 on eth0 to 255.255.255.255 port 67 Dec 1 13:53:32 andromeda dhclient: DHCPACK of 192.168.11.17 from 192.168.11.1 Dec 1 13:53:32 andromeda dhclient: bound to 192.168.11.17 -- renewal in 33576 seconds. Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> (eth0): DHCPv4 state changed preinit -> reboot Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> address 192.168.11.17 Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> prefix 24 (255.255.255.0) Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> gateway 192.168.11.1 Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> hostname 'andromeda' Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> nameserver '192.168.11.1' Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> domain name 'hsd1.ca.comcast.net' Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 5 of 5 (IPv4 Configure Commit) scheduled... Dec 1 13:53:32 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 5 of 5 (IPv4 Commit) started... Dec 1 13:53:32 andromeda avahi-daemon[890]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.11.17. Dec 1 13:53:32 andromeda avahi-daemon[890]: New relevant interface eth0.IPv4 for mDNS. Dec 1 13:53:32 andromeda avahi-daemon[890]: Registering new address record for 192.168.11.17 on eth0.IPv4. Dec 1 13:53:33 andromeda NetworkManager[1115]: <info> (eth0): device state change: ip-config -> activated (reason 'none') [70 100 0] Dec 1 13:53:33 andromeda NetworkManager[1115]: <info> ((null)): writing resolv.conf to /sbin/resolvconf Dec 1 13:53:33 andromeda dnsmasq[1907]: setting upstream servers from DBus Dec 1 13:53:33 andromeda dnsmasq[1907]: using nameserver 192.168.11.1#53 Dec 1 13:53:33 andromeda NetworkManager[1115]: <info> Policy set '82579V' (eth0) as default for IPv4 routing and DNS. Dec 1 13:53:33 andromeda NetworkManager[1115]: <info> Activation (eth0) successful, device activated. Dec 1 13:53:33 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 5 of 5 (IPv4 Commit) complete. Dec 1 13:53:33 andromeda dbus[800]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper) Dec 1 13:53:33 andromeda dbus[800]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Dec 1 13:53:33 andromeda avahi-daemon[890]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::ea40:f2ff:fee2:4d86. Dec 1 13:53:33 andromeda avahi-daemon[890]: New relevant interface eth0.IPv6 for mDNS. Dec 1 13:53:33 andromeda avahi-daemon[890]: Registering new address record for fe80::ea40:f2ff:fee2:4d86 on eth0.*. Dec 1 13:53:41 andromeda ntpdate[6154]: adjust time server 91.189.94.4 offset 0.000928 sec Dec 1 13:53:50 andromeda NetworkManager[1115]: <info> (eth0): carrier now OFF (device state 100, deferring action for 4 seconds) Dec 1 13:53:50 andromeda kernel: [ 1102.980003] e1000e: e1000e: eth0 NIC Link is Down Dec 1 13:53:54 andromeda NetworkManager[1115]: <info> (eth0): device state change: activated -> unavailable (reason 'carrier-changed') [100 20 40] Dec 1 13:53:54 andromeda NetworkManager[1115]: <info> (eth0): deactivating device (reason 'carrier-changed') [40] Dec 1 13:53:54 andromeda NetworkManager[1115]: <info> (eth0): canceled DHCP transaction, DHCP client pid 6080 Dec 1 13:53:54 andromeda avahi-daemon[890]: Withdrawing address record for fe80::ea40:f2ff:fee2:4d86 on eth0. Dec 1 13:53:54 andromeda avahi-daemon[890]: Leaving mDNS multicast group on interface eth0.IPv6 with address fe80::ea40:f2ff:fee2:4d86. Dec 1 13:53:54 andromeda avahi-daemon[890]: Interface eth0.IPv6 no longer relevant for mDNS. Dec 1 13:53:54 andromeda avahi-daemon[890]: Withdrawing address record for 192.168.11.17 on eth0. Dec 1 13:53:54 andromeda avahi-daemon[890]: Leaving mDNS multicast group on interface eth0.IPv4 with address 192.168.11.17. Dec 1 13:53:54 andromeda kernel: [ 1107.025959] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready Dec 1 13:53:54 andromeda NetworkManager[1115]: <warn> DNS: plugin dnsmasq update failed Dec 1 13:53:54 andromeda NetworkManager[1115]: <info> ((null)): removing resolv.conf from /sbin/resolvconf Dec 1 13:53:54 andromeda avahi-daemon[890]: Interface eth0.IPv4 no longer relevant for mDNS. Dec 1 13:53:54 andromeda dnsmasq[1907]: setting upstream servers from DBus Dec 1 13:53:54 andromeda dbus[800]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper) Dec 1 13:53:54 andromeda dbus[800]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> (eth0): carrier now ON (device state 20) Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> (eth0): device state change: unavailable -> disconnected (reason 'carrier-changed') [20 30 40] Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Auto-activating connection '82579V'. Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) starting connection '82579V' Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> (eth0): device state change: disconnected -> prepare (reason 'none') [30 40 0] Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) scheduled... Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) started... Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) scheduled... Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 1 of 5 (Device Prepare) complete. Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) starting... Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> (eth0): device state change: prepare -> config (reason 'none') [40 50 0] Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) successful. Dec 1 13:54:10 andromeda kernel: [ 1123.167668] e1000e: e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: Rx/Tx Dec 1 13:54:10 andromeda kernel: [ 1123.167675] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO Dec 1 13:54:10 andromeda kernel: [ 1123.168430] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) scheduled. Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 2 of 5 (Device Configure) complete. Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) started... Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> (eth0): device state change: config -> ip-config (reason 'none') [50 70 0] Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Beginning DHCPv4 transaction (timeout in 45 seconds) Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> dhclient started with pid 6212 Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 3 of 5 (IP Configure Start) complete. Dec 1 13:54:10 andromeda dhclient: Internet Systems Consortium DHCP Client 4.2.4 Dec 1 13:54:10 andromeda dhclient: Copyright 2004-2012 Internet Systems Consortium. Dec 1 13:54:10 andromeda dhclient: All rights reserved. Dec 1 13:54:10 andromeda dhclient: For info, please visit https://www.isc.org/software/dhcp/ Dec 1 13:54:10 andromeda dhclient: Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> (eth0): DHCPv4 state changed nbi -> preinit Dec 1 13:54:10 andromeda dhclient: Listening on LPF/eth0/e8:40:f2:e2:4d:86 Dec 1 13:54:10 andromeda dhclient: Sending on LPF/eth0/e8:40:f2:e2:4d:86 Dec 1 13:54:10 andromeda dhclient: Sending on Socket/fallback Dec 1 13:54:10 andromeda dhclient: DHCPREQUEST of 192.168.11.17 on eth0 to 255.255.255.255 port 67 Dec 1 13:54:10 andromeda dhclient: DHCPACK of 192.168.11.17 from 192.168.11.1 Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> (eth0): DHCPv4 state changed preinit -> reboot Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> address 192.168.11.17 Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> prefix 24 (255.255.255.0) Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> gateway 192.168.11.1 Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> hostname 'andromeda' Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> nameserver '192.168.11.1' Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> domain name 'hsd1.ca.comcast.net' Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 5 of 5 (IPv4 Configure Commit) scheduled... Dec 1 13:54:10 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 5 of 5 (IPv4 Commit) started... Dec 1 13:54:10 andromeda avahi-daemon[890]: Joining mDNS multicast group on interface eth0.IPv4 with address 192.168.11.17. Dec 1 13:54:10 andromeda dhclient: bound to 192.168.11.17 -- renewal in 35416 seconds. Dec 1 13:54:10 andromeda avahi-daemon[890]: New relevant interface eth0.IPv4 for mDNS. Dec 1 13:54:10 andromeda avahi-daemon[890]: Registering new address record for 192.168.11.17 on eth0.IPv4. Dec 1 13:54:11 andromeda NetworkManager[1115]: <info> (eth0): device state change: ip-config -> activated (reason 'none') [70 100 0] Dec 1 13:54:11 andromeda NetworkManager[1115]: <info> ((null)): writing resolv.conf to /sbin/resolvconf Dec 1 13:54:11 andromeda dnsmasq[1907]: setting upstream servers from DBus Dec 1 13:54:11 andromeda dnsmasq[1907]: using nameserver 192.168.11.1#53 Dec 1 13:54:11 andromeda NetworkManager[1115]: <info> Policy set '82579V' (eth0) as default for IPv4 routing and DNS. Dec 1 13:54:11 andromeda NetworkManager[1115]: <info> Activation (eth0) successful, device activated. Dec 1 13:54:11 andromeda NetworkManager[1115]: <info> Activation (eth0) Stage 5 of 5 (IPv4 Commit) complete. Dec 1 13:54:11 andromeda dbus[800]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper) Dec 1 13:54:11 andromeda dbus[800]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher' Dec 1 13:54:12 andromeda avahi-daemon[890]: Joining mDNS multicast group on interface eth0.IPv6 with address fe80::ea40:f2ff:fee2:4d86. Dec 1 13:54:12 andromeda avahi-daemon[890]: New relevant interface eth0.IPv6 for mDNS. Dec 1 13:54:12 andromeda avahi-daemon[890]: Registering new address record for fe80::ea40:f2ff:fee2:4d86 on eth0.*. Dec 1 13:54:19 andromeda ntpdate[6286]: adjust time server 91.189.94.4 offset 0.001142 sec $ lspci -v 00:19.0 Ethernet controller: Intel Corporation 82579V Gigabit Network Connection (rev 04) Subsystem: Intel Corporation Device 2031 Flags: bus master, fast devsel, latency 0, IRQ 45 Memory at f7f00000 (32-bit, non-prefetchable) [size=128K] Memory at f7f39000 (32-bit, non-prefetchable) [size=4K] I/O ports at f040 [size=32] Capabilities: [c8] Power Management version 2 Capabilities: [d0] MSI: Enable+ Count=1/1 Maskable- 64bit+ Capabilities: [e0] PCI Advanced Features Kernel driver in use: e1000e Kernel modules: e1000e $ modinfo e1000e filename: /lib/modules/3.5.0-19-generic/kernel/drivers/net/e1000e/e1000e.ko version: 2.1.4-NAPI license: GPL description: Intel(R) PRO/1000 Network Driver author: Intel Corporation, <[email protected]> srcversion: 0809529BE0BBC44883956AF alias: pci:v00008086d0000153Bsv*sd*bc*sc*i* alias: pci:v00008086d0000153Asv*sd*bc*sc*i* alias: pci:v00008086d00001503sv*sd*bc*sc*i* alias: pci:v00008086d00001502sv*sd*bc*sc*i* alias: pci:v00008086d000010F0sv*sd*bc*sc*i* alias: pci:v00008086d000010EFsv*sd*bc*sc*i* alias: pci:v00008086d000010EBsv*sd*bc*sc*i* alias: pci:v00008086d000010EAsv*sd*bc*sc*i* alias: pci:v00008086d00001525sv*sd*bc*sc*i* alias: pci:v00008086d000010DFsv*sd*bc*sc*i* alias: pci:v00008086d000010DEsv*sd*bc*sc*i* alias: pci:v00008086d000010CEsv*sd*bc*sc*i* alias: pci:v00008086d000010CDsv*sd*bc*sc*i* alias: pci:v00008086d000010CCsv*sd*bc*sc*i* alias: pci:v00008086d000010CBsv*sd*bc*sc*i* alias: pci:v00008086d000010F5sv*sd*bc*sc*i* alias: pci:v00008086d000010BFsv*sd*bc*sc*i* alias: pci:v00008086d000010E5sv*sd*bc*sc*i* alias: pci:v00008086d0000294Csv*sd*bc*sc*i* alias: pci:v00008086d000010BDsv*sd*bc*sc*i* alias: pci:v00008086d000010C3sv*sd*bc*sc*i* alias: pci:v00008086d000010C2sv*sd*bc*sc*i* alias: pci:v00008086d000010C0sv*sd*bc*sc*i* alias: pci:v00008086d00001501sv*sd*bc*sc*i* alias: pci:v00008086d00001049sv*sd*bc*sc*i* alias: pci:v00008086d0000104Dsv*sd*bc*sc*i* alias: pci:v00008086d0000104Bsv*sd*bc*sc*i* alias: pci:v00008086d0000104Asv*sd*bc*sc*i* alias: pci:v00008086d000010C4sv*sd*bc*sc*i* alias: pci:v00008086d000010C5sv*sd*bc*sc*i* alias: pci:v00008086d0000104Csv*sd*bc*sc*i* alias: pci:v00008086d000010BBsv*sd*bc*sc*i* alias: pci:v00008086d00001098sv*sd*bc*sc*i* alias: pci:v00008086d000010BAsv*sd*bc*sc*i* alias: pci:v00008086d00001096sv*sd*bc*sc*i* alias: pci:v00008086d0000150Csv*sd*bc*sc*i* alias: pci:v00008086d000010F6sv*sd*bc*sc*i* alias: pci:v00008086d000010D3sv*sd*bc*sc*i* alias: pci:v00008086d0000109Asv*sd*bc*sc*i* alias: pci:v00008086d0000108Csv*sd*bc*sc*i* alias: pci:v00008086d0000108Bsv*sd*bc*sc*i* alias: pci:v00008086d0000107Fsv*sd*bc*sc*i* alias: pci:v00008086d0000107Esv*sd*bc*sc*i* alias: pci:v00008086d0000107Dsv*sd*bc*sc*i* alias: pci:v00008086d000010B9sv*sd*bc*sc*i* alias: pci:v00008086d000010D5sv*sd*bc*sc*i* alias: pci:v00008086d000010DAsv*sd*bc*sc*i* alias: pci:v00008086d000010D9sv*sd*bc*sc*i* alias: pci:v00008086d00001060sv*sd*bc*sc*i* alias: pci:v00008086d000010A5sv*sd*bc*sc*i* alias: pci:v00008086d000010BCsv*sd*bc*sc*i* alias: pci:v00008086d000010A4sv*sd*bc*sc*i* alias: pci:v00008086d0000105Fsv*sd*bc*sc*i* alias: pci:v00008086d0000105Esv*sd*bc*sc*i* depends: vermagic: 3.5.0-19-generic SMP mod_unload modversions parm: copybreak:Maximum size of packet that is copied to a new buffer on receive (uint) parm: TxIntDelay:Transmit Interrupt Delay (array of int) parm: TxAbsIntDelay:Transmit Absolute Interrupt Delay (array of int) parm: RxIntDelay:Receive Interrupt Delay (array of int) parm: RxAbsIntDelay:Receive Absolute Interrupt Delay (array of int) parm: InterruptThrottleRate:Interrupt Throttling Rate (array of int) parm: IntMode:Interrupt Mode (array of int) parm: SmartPowerDownEnable:Enable PHY smart power down (array of int) parm: KumeranLockLoss:Enable Kumeran lock loss workaround (array of int) parm: CrcStripping:Enable CRC Stripping, disable if your BMC needs the CRC (array of int) parm: EEE:Enable/disable on parts that support the feature (array of int) parm: Node:[ROUTING] Node to allocate memory on, default -1 (array of int) parm: debug:Debug level (0=none,...,16=all) (int)

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• Global Cache CR Requested But Current Block Received

  - by Liu Maclean(???)

  ????????«MINSCN?Cache Fusion Read Consistent» ????,???????????? ??????????????????: SQL> select * from V$version; BANNER -------------------------------------------------------------------------------- Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production PL/SQL Release 11.2.0.3.0 - Production CORE 11.2.0.3.0 Production TNS for Linux: Version 11.2.0.3.0 - Production NLSRTL Version 11.2.0.3.0 - Production SQL> select count(*) from gv$instance; COUNT(*) ---------- 2 SQL> select * from global_name; GLOBAL_NAME -------------------------------------------------------------------------------- www.oracledatabase12g.com ?11gR2 2??RAC??????????status???XG,????Xcurrent block???INSTANCE 2?hold?,?????INSTANCE 1?????????,?????: SQL> select * from test; ID ---------- 1 2 SQL> select dbms_rowid.rowid_block_number(rowid),dbms_rowid.rowid_relative_fno(rowid) from test; DBMS_ROWID.ROWID_BLOCK_NUMBER(ROWID) DBMS_ROWID.ROWID_RELATIVE_FNO(ROWID) ------------------------------------ ------------------------------------ 89233 1 89233 1 SQL> alter system flush buffer_cache; System altered. INSTANCE 1 Session A: SQL> update test set id=id+1 where id=1; 1 row updated. INSTANCE 1 Session B: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1755287 SQL> oradebug setmypid; Statement processed. SQL> oradebug dump gc_elements 255; Statement processed. SQL> oradebug tracefile_name; /s01/orabase/diag/rdbms/vprod/VPROD1/trace/VPROD1_ora_19111.trc GLOBAL CACHE ELEMENT DUMP (address: 0xa4ff3080): id1: 0x15c91 id2: 0x1 pkey: OBJ#76896 block: (1/89233) lock: X rls: 0x0 acq: 0x0 latch: 3 flags: 0x20 fair: 0 recovery: 0 fpin: 'kdswh11: kdst_fetch' bscn: 0x0.146e20 bctx: (nil) write: 0 scan: 0x0 lcp: (nil) lnk: [NULL] lch: [0xa9f6a6f8,0xa9f6a6f8] seq: 32 hist: 58 145:0 118 66 144:0 192 352 197 48 121 113 424 180 58 LIST OF BUFFERS LINKED TO THIS GLOBAL CACHE ELEMENT: flg: 0x02000001 lflg: 0x1 state: XCURRENT tsn: 0 tsh: 2 addr: 0xa9f6a5c8 obj: 76896 cls: DATA bscn: 0x0.1ac898 BH (0xa9f6a5c8) file#: 1 rdba: 0x00415c91 (1/89233) class: 1 ba: 0xa9e56000 set: 5 pool: 3 bsz: 8192 bsi: 0 sflg: 3 pwc: 0,15 dbwrid: 0 obj: 76896 objn: 76896 tsn: 0 afn: 1 hint: f hash: [0x91f4e970,0xbae9d5b8] lru: [0x91f58848,0xa9f6a828] lru-flags: debug_dump obj-flags: object_ckpt_list ckptq: [0x9df6d1d8,0xa9f6a740] fileq: [0xa2ece670,0xbdf4ed68] objq: [0xb4964e00,0xb4964e00] objaq: [0xb4964de0,0xb4964de0] st: XCURRENT md: NULL fpin: 'kdswh11: kdst_fetch' tch: 2 le: 0xa4ff3080 flags: buffer_dirty redo_since_read LRBA: [0x19.5671.0] LSCN: [0x0.1ac898] HSCN: [0x0.1ac898] HSUB: [1] buffer tsn: 0 rdba: 0x00415c91 (1/89233) scn: 0x0000.001ac898 seq: 0x01 flg: 0x00 tail: 0xc8980601 frmt: 0x02 chkval: 0x0000 type: 0x06=trans data ??????block: (1/89233)?GLOBAL CACHE ELEMENT DUMP?LOCK????X ??XG , ??????Current Block????Instance??modify???,????????????? ????Instance 2 ????: Instance 2 Session C: SQL> update test set id=id+1 where id=2; 1 row updated. Instance 2 Session D: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1756658 SQL> oradebug setmypid; Statement processed. SQL> oradebug dump gc_elements 255; Statement processed. SQL> oradebug tracefile_name; /s01/orabase/diag/rdbms/vprod/VPROD2/trace/VPROD2_ora_13038.trc GLOBAL CACHE ELEMENT DUMP (address: 0x89fb25a0): id1: 0x15c91 id2: 0x1 pkey: OBJ#76896 block: (1/89233) lock: XG rls: 0x0 acq: 0x0 latch: 3 flags: 0x20 fair: 0 recovery: 0 fpin: 'kduwh01: kdusru' bscn: 0x0.1acdf3 bctx: (nil) write: 0 scan: 0x0 lcp: (nil) lnk: [NULL] lch: [0x96f4cf80,0x96f4cf80] seq: 61 hist: 324 21 143:0 19 16 352 329 144:6 14 7 352 197 LIST OF BUFFERS LINKED TO THIS GLOBAL CACHE ELEMENT: flg: 0x0a000001 state: XCURRENT tsn: 0 tsh: 1 addr: 0x96f4ce50 obj: 76896 cls: DATA bscn: 0x0.1acdf6 BH (0x96f4ce50) file#: 1 rdba: 0x00415c91 (1/89233) class: 1 ba: 0x96bd4000 set: 5 pool: 3 bsz: 8192 bsi: 0 sflg: 2 pwc: 0,15 dbwrid: 0 obj: 76896 objn: 76896 tsn: 0 afn: 1 hint: f hash: [0x96ee1fe8,0xbae9d5b8] lru: [0x96f4d0b0,0x96f4cdc0] obj-flags: object_ckpt_list ckptq: [0xbdf519b8,0x96f4d5a8] fileq: [0xbdf519d8,0xbdf519d8] objq: [0xb4a47b90,0xb4a47b90] objaq: [0x96f4d0e8,0xb4a47b70] st: XCURRENT md: NULL fpin: 'kduwh01: kdusru' tch: 1 le: 0x89fb25a0 flags: buffer_dirty redo_since_read remote_transfered LRBA: [0x11.9e18.0] LSCN: [0x0.1acdf6] HSCN: [0x0.1acdf6] HSUB: [1] buffer tsn: 0 rdba: 0x00415c91 (1/89233) scn: 0x0000.001acdf6 seq: 0x01 flg: 0x00 tail: 0xcdf60601 frmt: 0x02 chkval: 0x0000 type: 0x06=trans data GCS CLIENT 0x89fb2618,6 resp[(nil),0x15c91.1] pkey 76896.0 grant 2 cvt 0 mdrole 0x42 st 0x100 lst 0x20 GRANTQ rl G0 master 1 owner 2 sid 0 remote[(nil),0] hist 0x94121c601163423c history 0x3c.0x4.0xd.0xb.0x1.0xc.0x7.0x9.0x14.0x1. cflag 0x0 sender 1 flags 0x0 replay# 0 abast (nil).x0.1 dbmap (nil) disk: 0x0000.00000000 write request: 0x0000.00000000 pi scn: 0x0000.00000000 sq[(nil),(nil)] msgseq 0x1 updseq 0x0 reqids[6,0,0] infop (nil) lockseq x2b8 pkey 76896.0 hv 93 [stat 0x0, 1->1, wm 32768, RMno 0, reminc 18, dom 0] kjga st 0x4, step 0.0.0, cinc 20, rmno 6, flags 0x0 lb 0, hb 0, myb 15250, drmb 15250, apifrz 0 ?Instance 2??????block: (1/89233)? GLOBAL CACHE ELEMENT Lock Convert?lock: XG ????GC_ELEMENTS DUMP???XCUR Cache Fusion?,???????X$ VIEW,??? X$LE X$KJBR X$KJBL, ???X$ VIEW???????????????????: INSTANCE 2 Session D: SELECT * FROM x$le WHERE le_addr IN (SELECT le_addr FROM x$bh WHERE obj IN (SELECT data_object_id FROM dba_objects WHERE owner = 'SYS' AND object_name = 'TEST') AND class = 1 AND state != 3); ADDR INDX INST_ID LE_ADDR LE_ID1 LE_ID2 ---------------- ---------- ---------- ---------------- ---------- ---------- LE_RLS LE_ACQ LE_FLAGS LE_MODE LE_WRITE LE_LOCAL LE_RECOVERY ---------- ---------- ---------- ---------- ---------- ---------- ----------- LE_BLKS LE_TIME LE_KJBL ---------- ---------- ---------------- 00007F94CA14CF60 7003 2 0000000089FB25A0 89233 1 0 0 32 2 0 1 0 1 0 0000000089FB2618 PCM Resource NAME?[ID1][ID2],[BL]???, ID1?ID2 ??blockno? fileno????, ??????????GC_elements dump?? id1: 0x15c91 id2: 0×1 pkey: OBJ#76896 block: (1/89233)?? ,?  kjblname ? kjbrname ??”[0x15c91][0x1],[BL]” ??: INSTANCE 2 Session D: SQL> set linesize 80 pagesize 1400 SQL> SELECT * 2 FROM x$kjbl l 3 WHERE l.kjblname LIKE '%[0x15c91][0x1],[BL]%'; ADDR INDX INST_ID KJBLLOCKP KJBLGRANT KJBLREQUE ---------------- ---------- ---------- ---------------- --------- --------- KJBLROLE KJBLRESP KJBLNAME ---------- ---------------- ------------------------------ KJBLNAME2 KJBLQUEUE ------------------------------ ---------- KJBLLOCKST KJBLWRITING ---------------------------------------------------------------- ----------- KJBLREQWRITE KJBLOWNER KJBLMASTER KJBLBLOCKED KJBLBLOCKER KJBLSID KJBLRDOMID ------------ ---------- ---------- ----------- ----------- ---------- ---------- KJBLPKEY ---------- 00007F94CA22A288 451 2 0000000089FB2618 KJUSEREX KJUSERNL 0 00 [0x15c91][0x1],[BL][ext 0x0,0x 89233,1,BL 0 GRANTED 0 0 1 0 0 0 0 0 76896 SQL> SELECT r.* FROM x$kjbr r WHERE r.kjbrname LIKE '%[0x15c91][0x1],[BL]%'; no rows selected Instance 1 session B: SQL> SELECT r.* FROM x$kjbr r WHERE r.kjbrname LIKE '%[0x15c91][0x1],[BL]%'; ADDR INDX INST_ID KJBRRESP KJBRGRANT KJBRNCVL ---------------- ---------- ---------- ---------------- --------- --------- KJBRROLE KJBRNAME KJBRMASTER KJBRGRANTQ ---------- ------------------------------ ---------- ---------------- KJBRCVTQ KJBRWRITER KJBRSID KJBRRDOMID KJBRPKEY ---------------- ---------------- ---------- ---------- ---------- 00007F801ACA68F8 1355 1 00000000B5A62AE0 KJUSEREX KJUSERNL 0 [0x15c91][0x1],[BL][ext 0x0,0x 0 00000000B48BB330 00 00 0 0 76896 ??????Instance 1???block: (1/89233),??????Instance 2 build cr block ????Instance 1, ?????????? ????? Instance 1? Foreground Process ? Instance 2?LMS??????RAC  TRACE: Instance 2: [oracle@vrh2 ~]$ ps -ef|grep ora_lms|grep -v grep oracle 23364 1 0 Apr29 ? 00:33:15 ora_lms0_VPROD2 SQL> oradebug setospid 23364 Oracle pid: 13, Unix process pid: 23364, image: [email protected] (LMS0) SQL> oradebug event 10046 trace name context forever,level 8:10708 trace name context forever,level 103: trace[rac.*] disk high; Statement processed. SQL> oradebug tracefile_name /s01/orabase/diag/rdbms/vprod/VPROD2/trace/VPROD2_lms0_23364.trc Instance 1 session B : SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1756658 3 1756661 3 1755287 Instance 1 session A : SQL> alter session set events '10046 trace name context forever,level 8:10708 trace name context forever,level 103: trace[rac.*] disk high'; Session altered. SQL> select * from test; ID ---------- 2 2 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1761520 ?x$BH?????,???????Instance 1???build??CR block,????? TRACE ??: Instance 1 foreground Process: PARSING IN CURSOR #140336527348792 len=18 dep=0 uid=0 oct=3 lid=0 tim=1335939136125254 hv=1689401402 ad='b1a4c828' sqlid='c99yw1xkb4f1u' select * from test END OF STMT PARSE #140336527348792:c=2999,e=2860,p=0,cr=0,cu=0,mis=1,r=0,dep=0,og=1,plh=1357081020,tim=1335939136125253 EXEC #140336527348792:c=0,e=40,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335939136125373 WAIT #140336527348792: nam='SQL*Net message to client' ela= 6 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=1335939136125420 *** 2012-05-02 02:12:16.125 kclscrs: req=0 block=1/89233 2012-05-02 02:12:16.125574 : kjbcro[0x15c91.1 76896.0][4] *** 2012-05-02 02:12:16.125 kclscrs: req=0 typ=nowait-abort *** 2012-05-02 02:12:16.125 kclscrs: bid=1:3:1:0:f:1e:0:0:10:0:0:0:1:2:4:1:20:0:0:0:c3:49:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:1c:0:4d:26:a3:52:0:0:0:0:c7:c:ca:62:c3:49:0:0:0:0:1:0:14:8e:47:76:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:99:ed:0:0:0:0:0:0:10:0:0:0 2012-05-02 02:12:16.125718 : kjbcro[0x15c91.1 76896.0][4] 2012-05-02 02:12:16.125751 : GSIPC:GMBQ: buff 0xba0ee018, queue 0xbb79a7b8, pool 0x60013fa0, freeq 0, nxt 0xbb79a7b8, prv 0xbb79a7b8 2012-05-02 02:12:16.125780 : kjbsentscn[0x0.1ae0f0][to 2] 2012-05-02 02:12:16.125806 : GSIPC:SENDM: send msg 0xba0ee088 dest x20001 seq 177740 type 36 tkts xff0000 mlen x1680198 2012-05-02 02:12:16.125918 : kjbmscr(0x15c91.1)reqid=0x8(req 0xa4ff30f8)(rinst 1)hldr 2(infosz 200)(lseq x2b8) 2012-05-02 02:12:16.126959 : GSIPC:KSXPCB: msg 0xba0ee088 status 30, type 36, dest 2, rcvr 1 *** 2012-05-02 02:12:16.127 kclwcrs: wait=0 tm=1233 *** 2012-05-02 02:12:16.127 kclwcrs: got 1 blocks from ksxprcv WAIT #140336527348792: nam='gc cr block 2-way' ela= 1233 p1=1 p2=89233 p3=1 obj#=76896 tim=1335939136127199 2012-05-02 02:12:16.127272 : kjbcrcomplete[0x15c91.1 76896.0][0] 2012-05-02 02:12:16.127309 : kjbrcvdscn[0x0.1ae0f0][from 2][idx 2012-05-02 02:12:16.127329 : kjbrcvdscn[no bscn <= rscn 0x0.1ae0f0][from 2] ???? kjbcro[0x15c91.1 76896.0][4] kjbsentscn[0x0.1ae0f0][to 2] ?Instance 2??SCN=1ae0f0=1761520? block: (1/89233),???’gc cr block 2-way’ ??,?????????CR block? Instance 2 LMS TRACE 2012-05-02 02:12:15.634057 : GSIPC:RCVD: ksxp msg 0x7f16e1598588 sndr 1 seq 0.177740 type 36 tkts 0 2012-05-02 02:12:15.634094 : GSIPC:RCVD: watq msg 0x7f16e1598588 sndr 1, seq 177740, type 36, tkts 0 2012-05-02 02:12:15.634108 : GSIPC:TKT: collect msg 0x7f16e1598588 from 1 for rcvr -1, tickets 0 2012-05-02 02:12:15.634162 : kjbrcvdscn[0x0.1ae0f0][from 1][idx 2012-05-02 02:12:15.634186 : kjbrcvdscn[no bscn1, wm 32768, RMno 0, reminc 18, dom 0] kjga st 0x4, step 0.0.0, cinc 20, rmno 6, flags 0x0 lb 0, hb 0, myb 15250, drmb 15250, apifrz 0 GCS CLIENT END 2012-05-02 02:12:15.635211 : kjbdowncvt[0x15c91.1 76896.0][1][options x0] 2012-05-02 02:12:15.635230 : GSIPC:AMBUF: rcv buff 0x7f16e1c56420, pool rcvbuf, rqlen 1103 2012-05-02 02:12:15.635308 : GSIPC:GPBMSG: new bmsg 0x7f16e1c56490 mb 0x7f16e1c56420 msg 0x7f16e1c564b0 mlen 152 dest x101 flushsz -1 2012-05-02 02:12:15.635334 : kjbmslset(0x15c91.1)) seq 0x4 reqid=0x6 (shadow 0xb48bb330.xb)(rsn 2)(mas@1) 2012-05-02 02:12:15.635355 : GSIPC:SPBMSG: send bmsg 0x7f16e1c56490 blen 184 msg 0x7f16e1c564b0 mtype 33 attr|dest x30101 bsz|fsz x1ffff 2012-05-02 02:12:15.635377 : GSIPC:SNDQ: enq msg 0x7f16e1c56490, type 65521 seq 118669, inst 1, receiver 1, queued 1 *** 2012-05-02 02:12:15.635 kclccctx: cleanup copy 0x7f16e1d94798 2012-05-02 02:12:15.635479 : [kjmpmsgi:compl][type 36][msg 0x7f16e1598588][seq 177740.0][qtime 0][ptime 1257] 2012-05-02 02:12:15.635511 : GSIPC:BSEND: flushing sndq 0xb491dd28, id 1, dcx 0xbc516778, inst 1, rcvr 1 qlen 0 1 2012-05-02 02:12:15.635536 : GSIPC:BSEND: no batch1 msg 0x7f16e1c56490 type 65521 len 184 dest (1:1) 2012-05-02 02:12:15.635557 : kjbsentscn[0x0.1ae0f1][to 1] 2012-05-02 02:12:15.635578 : GSIPC:SENDM: send msg 0x7f16e1c56490 dest x10001 seq 118669 type 65521 tkts x10002 mlen xb800e8 WAIT #0: nam='gcs remote message' ela= 180 waittime=1 poll=0 event=0 obj#=0 tim=1335939135635819 2012-05-02 02:12:15.635853 : GSIPC:RCVD: ksxp msg 0x7f16e167e0b0 sndr 1 seq 0.177741 type 32 tkts 0 2012-05-02 02:12:15.635875 : GSIPC:RCVD: watq msg 0x7f16e167e0b0 sndr 1, seq 177741, type 32, tkts 0 2012-05-02 02:12:15.636012 : GSIPC:TKT: collect msg 0x7f16e167e0b0 from 1 for rcvr -1, tickets 0 2012-05-02 02:12:15.636040 : kjbrcvdscn[0x0.1ae0f1][from 1][idx 2012-05-02 02:12:15.636060 : kjbrcvdscn[no bscn <= rscn 0x0.1ae0f1][from 1] 2012-05-02 02:12:15.636082 : GSIPC:TKT: dest (1:1) rtkt not acked 1  unassigned bufs 0  tkts 0  newbufs 0 2012-05-02 02:12:15.636102 : GSIPC:TKT: remove ctx dest (1:1) 2012-05-02 02:12:15.636125 : [kjmxmpm][type 32][seq 0.177741][msg 0x7f16e167e0b0][from 1] 2012-05-02 02:12:15.636146 : kjbmpocr(0xb0.6)seq 0x1,reqid=0x23a,(client 0x9fff7b58,0x1)(from 1)(lseq xdf0) 2????LMS????????? ??gcs remote message GSIPC ????SCN=[0x0.1ae0f0] block=1/89233???,??BAST kjbmpbast(0x15c91.1),?? block=1/89233??????? ??fairness??(?11.2.0.3???_fairness_threshold=2),?current block?KCL: F156: fairness downconvert,?Xcurrent DownConvert? Scurrent: Instance 2: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 2 0 3 1756658 ??Instance 2 LMS ?cr block??? kjbmslset(0x15c91.1)) ????SEND QUEUE GSIPC:SNDQ: enq msg 0x7f16e1c56490? ???????Instance 1???? block: (1/89233)??? ??????: Instance 2: SQL> select CURRENT_RESULTS,LIGHT_WORKS from v$cr_block_server; CURRENT_RESULTS LIGHT_WORKS --------------- ----------- 29273 437 Instance 1 session A: SQL> SQL> select * from test; ID ---------- 2 2 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 3 1761942 3 1761932 1 0 3 1761520 Instance 2: SQL> select CURRENT_RESULTS,LIGHT_WORKS from v$cr_block_server; CURRENT_RESULTS LIGHT_WORKS --------------- ----------- 29274 437 select * from test END OF STMT PARSE #140336529675592:c=0,e=337,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335939668940051 EXEC #140336529675592:c=0,e=96,p=0,cr=0,cu=0,mis=0,r=0,dep=0,og=1,plh=1357081020,tim=1335939668940204 WAIT #140336529675592: nam='SQL*Net message to client' ela= 5 driver id=1650815232 #bytes=1 p3=0 obj#=0 tim=1335939668940348 *** 2012-05-02 02:21:08.940 kclscrs: req=0 block=1/89233 2012-05-02 02:21:08.940676 : kjbcro[0x15c91.1 76896.0][5] *** 2012-05-02 02:21:08.940 kclscrs: req=0 typ=nowait-abort *** 2012-05-02 02:21:08.940 kclscrs: bid=1:3:1:0:f:21:0:0:10:0:0:0:1:2:4:1:20:0:0:0:c3:49:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:4:3:2:1:2:0:1f:0:4d:26:a3:52:0:0:0:0:c7:c:ca:62:c3:49:0:0:0:0:1:0:17:8e:47:76:1:2:dc:5:a9:fe:17:75:0:0:0:0:0:0:0:0:0:0:0:0:99:ed:0:0:0:0:0:0:10:0:0:0 2012-05-02 02:21:08.940799 : kjbcro[0x15c91.1 76896.0][5] 2012-05-02 02:21:08.940833 : GSIPC:GMBQ: buff 0xba0ee018, queue 0xbb79a7b8, pool 0x60013fa0, freeq 0, nxt 0xbb79a7b8, prv 0xbb79a7b8 2012-05-02 02:21:08.940859 : kjbsentscn[0x0.1ae28c][to 2] 2012-05-02 02:21:08.940870 : GSIPC:SENDM: send msg 0xba0ee088 dest x20001 seq 177810 type 36 tkts xff0000 mlen x1680198 2012-05-02 02:21:08.940976 : kjbmscr(0x15c91.1)reqid=0xa(req 0xa4ff30f8)(rinst 1)hldr 2(infosz 200)(lseq x2b8) 2012-05-02 02:21:08.941314 : GSIPC:KSXPCB: msg 0xba0ee088 status 30, type 36, dest 2, rcvr 1 *** 2012-05-02 02:21:08.941 kclwcrs: wait=0 tm=707 *** 2012-05-02 02:21:08.941 kclwcrs: got 1 blocks from ksxprcv 2012-05-02 02:21:08.941818 : kjbassume[0x15c91.1][sender 2][mymode x1][myrole x0][srole x0][flgs x0][spiscn 0x0.0][swscn 0x0.0] 2012-05-02 02:21:08.941852 : kjbrcvdscn[0x0.1ae28d][from 2][idx 2012-05-02 02:21:08.941871 : kjbrcvdscn[no bscn ??????????????SCN=[0x0.1ae28c]=1761932 Version?CR block, ????receive????Xcurrent Block??SCN=1ae28d=1761933,Instance 1???Xcurrent Block???build????????SCN=1761932?CR BLOCK, ????????Current block,?????????'gc current block 2-way'? ?????????????request current block,?????kjbcro;?????Instance 2?LMS???????Current Block: Instance 2 LMS trace: 2012-05-02 02:21:08.448743 : GSIPC:RCVD: ksxp msg 0x7f16e14a4398 sndr 1 seq 0.177810 type 36 tkts 0 2012-05-02 02:21:08.448778 : GSIPC:RCVD: watq msg 0x7f16e14a4398 sndr 1, seq 177810, type 36, tkts 0 2012-05-02 02:21:08.448798 : GSIPC:TKT: collect msg 0x7f16e14a4398 from 1 for rcvr -1, tickets 0 2012-05-02 02:21:08.448816 : kjbrcvdscn[0x0.1ae28c][from 1][idx 2012-05-02 02:21:08.448834 : kjbrcvdscn[no bscn <= rscn 0x0.1ae28c][from 1] 2012-05-02 02:21:08.448857 : GSIPC:TKT: dest (1:1) rtkt not acked 2  unassigned bufs 0  tkts 0  newbufs 0 2012-05-02 02:21:08.448875 : GSIPC:TKT: remove ctx dest (1:1) 2012-05-02 02:21:08.448970 : [kjmxmpm][type 36][seq 0.177810][msg 0x7f16e14a4398][from 1] 2012-05-02 02:21:08.448993 : kjbmpbast(0x15c91.1) reqid=0x6 (req 0xa4ff30f8)(reqinst 1)(reqid 10)(flags x0) *** 2012-05-02 02:21:08.449 kclcrrf: req=48054 block=1/89233 *** 2012-05-02 02:21:08.449 kcl_compress_block: compressed: 6 free space: 7680 2012-05-02 02:21:08.449085 : kjbsentscn[0x0.1ae28d][to 1] 2012-05-02 02:21:08.449142 : kjbdeliver[to 1][0xa4ff30f8][10][current 1] 2012-05-02 02:21:08.449164 : kjbmssch(reqlock 0xa4ff30f8,10)(to 1)(bsz 344) 2012-05-02 02:21:08.449183 : GSIPC:AMBUF: rcv buff 0x7f16e18bcec8, pool rcvbuf, rqlen 1102 *** 2012-05-02 02:21:08.449 kclccctx: cleanup copy 0x7f16e1d94838 *** 2012-05-02 02:21:08.449 kcltouched: touch seconds 3271 *** 2012-05-02 02:21:08.449 kclgrantlk: req=48054 2012-05-02 02:21:08.449347 : [kjmpmsgi:compl][type 36][msg 0x7f16e14a4398][seq 177810.0][qtime 0][ptime 1119] WAIT #0: nam='gcs remote message' ela= 568 waittime=1 poll=0 event=0 obj#=0 tim=1335939668449962 2012-05-02 02:21:08.450001 : GSIPC:RCVD: ksxp msg 0x7f16e1bb22a0 sndr 1 seq 0.177811 type 32 tkts 0 2012-05-02 02:21:08.450024 : GSIPC:RCVD: watq msg 0x7f16e1bb22a0 sndr 1, seq 177811, type 32, tkts 0 2012-05-02 02:21:08.450043 : GSIPC:TKT: collect msg 0x7f16e1bb22a0 from 1 for rcvr -1, tickets 0 2012-05-02 02:21:08.450060 : kjbrcvdscn[0x0.1ae28e][from 1][idx 2012-05-02 02:21:08.450078 : kjbrcvdscn[no bscn <= rscn 0x0.1ae28e][from 1] 2012-05-02 02:21:08.450097 : GSIPC:TKT: dest (1:1) rtkt not acked 3  unassigned bufs 0  tkts 0  newbufs 0 2012-05-02 02:21:08.450116 : GSIPC:TKT: remove ctx dest (1:1) 2012-05-02 02:21:08.450136 : [kjmxmpm][type 32][seq 0.177811][msg 0x7f16e1bb22a0][from 1] 2012-05-02 02:21:08.450155 : kjbmpocr(0xb0.6)seq 0x1,reqid=0x23e,(client 0x9fff7b58,0x1)(from 1)(lseq xdf4) ???Instance 2??LMS???,???build cr block,??????Instance 1?????Current Block??????Instance 2??v$cr_block_server??????LIGHT_WORKS?????current block transfer??????,??????? CR server? Light Work Rule(Light Work Rule?8i Cr Server?????????,?Remote LMS?? build CR????????,resource holder?LMS???????block,????CR build If creating the consistent read version block involves too much work (such as reading blocks from disk), then the holder sends the block to the requestor, and the requestor completes the CR fabrication. The holder maintains a fairness counter of CR requests. After the fairness threshold is reached, the holder downgrades it to lock mode.)? ??????? CR Request ????Current Block?? ???:??????class?block,CR server??????? ??undo block?? undo header block?CR quest, LMS????Current Block, ????? ???? ??????? block cleanout? CR  Version??????? ???????? data blocks, ??????? CR quest  & CR received?(???????Light Work Rule,LMS"??"), ??Current Block??DownConvert???S lock,??LMS???????ship??current version?block? ??????? , ?????? ,???????DownConvert?????”_fairness_threshold“???200,????Xcurrent Block?????Scurrent, ????LMS?????Current Version?Data Block: SQL> show parameter fair NAME TYPE VALUE ------------------------------------ ----------- ------------------------------ _fairness_threshold integer 200 Instance 1: SQL> update test set id=id+1 where id=4; 1 row updated. Instance 2: SQL> update test set id=id+1 where id=2; 1 row updated. SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1838166 ?Instance 1? ????,? ??instance 2? v$cr_block_server?? instance 1 SQL> select * from test; ID ---------- 10 3 instance 2: SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1883707 8 0 SQL> select * from test; ID ---------- 10 3 SQL> select state,cr_scn_bas from x$bh where file#=1 and dbablk=89233 and state!=0; STATE CR_SCN_BAS ---------- ---------- 1 0 3 1883707 8 0 ................... SQL> / STATE CR_SCN_BAS ---------- ---------- 2 0 3 1883707 3 1883695 repeat cr request on Instance 1 SQL> / STATE CR_SCN_BAS ---------- ---------- 8 0 3 1883707 3 1883695 ??????_fairness_threshold????????,?????200 ????????CR serve??Downgrade?lock, ????data block? CR Request????Receive? Current Block?

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• Computer crashes on resume from standby almost every time

  - by Los Frijoles

  I am running Ubuntu 12.04 on a Core i5 2500K and ASRock Z68 Pro3-M motherboard (no graphics card, hd is a WD Green 1TB, and cd drive is some cheap lite-on drive). Since installing 12.04, my computer has been freezing after resume, but not every time. When I start to resume, it starts going normally with a blinking cursor on the screen and then sometimes it will continue on to the gnome 3 unlock screen. Most of the time, however, it will blink for a little bit and then the monitor will flip modes and shut off due to no signal. Pressing keys on the keyboard gets no response (num lock light doesn't respond, Ctrl-Alt-F1 fails to drop it into a terminal, Ctrl-Alt-Backspace doesn't work) and so I assume the computer is crashed. The worst part is, the logs look entirely normal. Here is my system log during one of these crashes and my subsequent hard poweroff and restart: Jun 6 21:54:43 kcuzner-desktop udevd[10448]: inotify_add_watch(6, /dev/dm-2, 10) failed: No such file or directory Jun 6 21:54:43 kcuzner-desktop udevd[10448]: inotify_add_watch(6, /dev/dm-2, 10) failed: No such file or directory Jun 6 21:54:43 kcuzner-desktop udevd[10448]: inotify_add_watch(6, /dev/dm-1, 10) failed: No such file or directory Jun 6 21:54:43 kcuzner-desktop udevd[12419]: inotify_add_watch(6, /dev/dm-0, 10) failed: No such file or directory Jun 6 21:54:43 kcuzner-desktop udevd[10448]: inotify_add_watch(6, /dev/dm-0, 10) failed: No such file or directory Jun 6 22:09:01 kcuzner-desktop CRON[9061]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete) Jun 6 22:17:01 kcuzner-desktop CRON[22142]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Jun 6 22:39:01 kcuzner-desktop CRON[26909]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete) Jun 6 22:54:21 kcuzner-desktop kernel: [57905.560822] show_signal_msg: 36 callbacks suppressed Jun 6 22:54:21 kcuzner-desktop kernel: [57905.560828] chromium-browse[9139]: segfault at 0 ip 00007f3a78efade0 sp 00007fff7e2d2c18 error 4 in chromium-browser[7f3a76604000+412b000] Jun 6 23:05:43 kcuzner-desktop kernel: [58586.415158] chromium-browse[21025]: segfault at 0 ip 00007f3a78efade0 sp 00007fff7e2d2c18 error 4 in chromium-browser[7f3a76604000+412b000] Jun 6 23:09:01 kcuzner-desktop CRON[13542]: (root) CMD ( [ -x /usr/lib/php5/maxlifetime ] && [ -d /var/lib/php5 ] && find /var/lib/php5/ -depth -mindepth 1 -maxdepth 1 -type f -cmin +$(/usr/lib/php5/maxlifetime) ! -execdir fuser -s {} 2>/dev/null \; -delete) Jun 6 23:12:43 kcuzner-desktop kernel: [59006.317590] usb 2-1.7: USB disconnect, device number 8 Jun 6 23:12:43 kcuzner-desktop kernel: [59006.319672] sd 7:0:0:0: [sdg] Synchronizing SCSI cache Jun 6 23:12:43 kcuzner-desktop kernel: [59006.319737] sd 7:0:0:0: [sdg] Result: hostbyte=DID_NO_CONNECT driverbyte=DRIVER_OK Jun 6 23:17:01 kcuzner-desktop CRON[26580]: (root) CMD ( cd / && run-parts --report /etc/cron.hourly) Jun 6 23:19:04 kcuzner-desktop acpid: client connected from 29925[0:0] Jun 6 23:19:04 kcuzner-desktop acpid: 1 client rule loaded Jun 6 23:19:07 kcuzner-desktop rtkit-daemon[1835]: Successfully made thread 30131 of process 30131 (n/a) owned by '104' high priority at nice level -11. Jun 6 23:19:07 kcuzner-desktop rtkit-daemon[1835]: Supervising 1 threads of 1 processes of 1 users. Jun 6 23:19:07 kcuzner-desktop rtkit-daemon[1835]: Successfully made thread 30162 of process 30131 (n/a) owned by '104' RT at priority 5. Jun 6 23:19:07 kcuzner-desktop rtkit-daemon[1835]: Supervising 2 threads of 1 processes of 1 users. Jun 6 23:19:07 kcuzner-desktop rtkit-daemon[1835]: Successfully made thread 30163 of process 30131 (n/a) owned by '104' RT at priority 5. Jun 6 23:19:07 kcuzner-desktop rtkit-daemon[1835]: Supervising 3 threads of 1 processes of 1 users. Jun 6 23:19:07 kcuzner-desktop bluetoothd[1140]: Endpoint registered: sender=:1.239 path=/MediaEndpoint/HFPAG Jun 6 23:19:07 kcuzner-desktop bluetoothd[1140]: Endpoint registered: sender=:1.239 path=/MediaEndpoint/A2DPSource Jun 6 23:19:07 kcuzner-desktop bluetoothd[1140]: Endpoint registered: sender=:1.239 path=/MediaEndpoint/A2DPSink Jun 6 23:19:07 kcuzner-desktop rtkit-daemon[1835]: Successfully made thread 30166 of process 30166 (n/a) owned by '104' high priority at nice level -11. Jun 6 23:19:07 kcuzner-desktop rtkit-daemon[1835]: Supervising 4 threads of 2 processes of 1 users. Jun 6 23:19:07 kcuzner-desktop pulseaudio[30166]: [pulseaudio] pid.c: Daemon already running. Jun 6 23:19:10 kcuzner-desktop acpid: client 2942[0:0] has disconnected Jun 6 23:19:10 kcuzner-desktop acpid: client 29925[0:0] has disconnected Jun 6 23:19:10 kcuzner-desktop acpid: client connected from 1286[0:0] Jun 6 23:19:10 kcuzner-desktop acpid: 1 client rule loaded Jun 6 23:19:31 kcuzner-desktop bluetoothd[1140]: Endpoint unregistered: sender=:1.239 path=/MediaEndpoint/HFPAG Jun 6 23:19:31 kcuzner-desktop bluetoothd[1140]: Endpoint unregistered: sender=:1.239 path=/MediaEndpoint/A2DPSource Jun 6 23:19:31 kcuzner-desktop bluetoothd[1140]: Endpoint unregistered: sender=:1.239 path=/MediaEndpoint/A2DPSink Jun 6 23:28:12 kcuzner-desktop kernel: imklog 5.8.6, log source = /proc/kmsg started. Jun 6 23:28:12 kcuzner-desktop rsyslogd: [origin software="rsyslogd" swVersion="5.8.6" x-pid="1053" x-info="http://www.rsyslog.com"] start Jun 6 23:28:12 kcuzner-desktop rsyslogd: rsyslogd's groupid changed to 103 Jun 6 23:28:12 kcuzner-desktop rsyslogd: rsyslogd's userid changed to 101 Jun 6 23:28:12 kcuzner-desktop rsyslogd-2039: Could not open output pipe '/dev/xconsole' [try http://www.rsyslog.com/e/2039 ] Jun 6 23:28:12 kcuzner-desktop modem-manager[1070]: <info> Loaded plugin Ericsson MBM Jun 6 23:28:12 kcuzner-desktop modem-manager[1070]: <info> Loaded plugin Sierra Jun 6 23:28:12 kcuzner-desktop modem-manager[1070]: <info> Loaded plugin Generic Jun 6 23:28:12 kcuzner-desktop modem-manager[1070]: <info> Loaded plugin Huawei Jun 6 23:28:12 kcuzner-desktop modem-manager[1070]: <info> Loaded plugin Linktop Jun 6 23:28:12 kcuzner-desktop bluetoothd[1072]: Failed to init gatt_example plugin Jun 6 23:28:12 kcuzner-desktop bluetoothd[1072]: Listening for HCI events on hci0 Jun 6 23:28:12 kcuzner-desktop NetworkManager[1080]: <info> NetworkManager (version 0.9.4.0) is starting... Jun 6 23:28:12 kcuzner-desktop NetworkManager[1080]: <info> Read config file /etc/NetworkManager/NetworkManager.conf Jun 6 23:28:12 kcuzner-desktop NetworkManager[1080]: <info> VPN: loaded org.freedesktop.NetworkManager.pptp Jun 6 23:28:12 kcuzner-desktop NetworkManager[1080]: <info> DNS: loaded plugin dnsmasq Jun 6 23:28:12 kcuzner-desktop kernel: [ 0.000000] Initializing cgroup subsys cpuset Jun 6 23:28:12 kcuzner-desktop kernel: [ 0.000000] Initializing cgroup subsys cpu Sorry it's so huge; the restart happens at 23:28:12 I believe and all I see is that chromium segfaulted a few times. I wouldn't think a segfault from an individual program on the computer would crash it, but could that be the issue?

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• Using a WCF Message Inspector to extend AppFabric Monitoring

  - by Shawn Cicoria

  I read through Ron Jacobs post on Monitoring WCF Data Services with AppFabric http://blogs.msdn.com/b/endpoint/archive/2010/06/09/tracking-wcf-data-services-with-windows-server-appfabric.aspx What is immediately striking are 2 things – it’s so easy to get monitoring data into a viewer (AppFabric Dashboard) w/ very little work.  And the 2nd thing is, why can’t this be a WCF message inspector on the dispatch side. So, I took the base class WCFUserEventProvider that’s located in the WCF/WF samples [1] in the following path, \WF_WCF_Samples\WCF\Basic\Management\AnalyticTraceExtensibility\CS\WCFAnalyticTracingExtensibility\  and then created a few classes that project the injection as a IEndPointBehavior There are just 3 classes to drive injection of the inspector at runtime via config: IDispatchMessageInspector implementation BehaviorExtensionElement implementation IEndpointBehavior implementation The full source code is below with a link to the solution file here: [Solution File] using System; using System.Collections.Generic; using System.Linq; using System.Web; using System.ServiceModel.Dispatcher; using System.ServiceModel.Channels; using System.ServiceModel; using System.ServiceModel.Configuration; using System.ServiceModel.Description; using Microsoft.Samples.WCFAnalyticTracingExtensibility; namespace Fabrikam.Services { public class AppFabricE2EInspector : IDispatchMessageInspector { static WCFUserEventProvider evntProvider = null; static AppFabricE2EInspector() { evntProvider = new WCFUserEventProvider(); } public object AfterReceiveRequest( ref Message request, IClientChannel channel, InstanceContext instanceContext) { OperationContext ctx = OperationContext.Current; var opName = ctx.IncomingMessageHeaders.Action; evntProvider.WriteInformationEvent("start", string.Format("operation: {0} at address {1}", opName, ctx.EndpointDispatcher.EndpointAddress)); return null; } public void BeforeSendReply(ref System.ServiceModel.Channels.Message reply, object correlationState) { OperationContext ctx = OperationContext.Current; var opName = ctx.IncomingMessageHeaders.Action; evntProvider.WriteInformationEvent("end", string.Format("operation: {0} at address {1}", opName, ctx.EndpointDispatcher.EndpointAddress)); } } public class AppFabricE2EBehaviorElement : BehaviorExtensionElement { #region BehaviorExtensionElement /// <summary> /// Gets the type of behavior. /// </summary> /// <value></value> /// <returns>The type that implements the end point behavior<see cref="T:System.Type"/>.</returns> public override Type BehaviorType { get { return typeof(AppFabricE2EEndpointBehavior); } } /// <summary> /// Creates a behavior extension based on the current configuration settings. /// </summary> /// <returns>The behavior extension.</returns> protected override object CreateBehavior() { return new AppFabricE2EEndpointBehavior(); } #endregion BehaviorExtensionElement } public class AppFabricE2EEndpointBehavior : IEndpointBehavior //, IServiceBehavior { #region IEndpointBehavior public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters) {} public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime) { throw new NotImplementedException(); } public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher) { endpointDispatcher.DispatchRuntime.MessageInspectors.Add(new AppFabricE2EInspector()); } public void Validate(ServiceEndpoint endpoint) { ; } #endregion IEndpointBehavior } }     [1] http://www.microsoft.com/downloads/details.aspx?FamilyID=35ec8682-d5fd-4bc3-a51a-d8ad115a8792&displaylang=en

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• OBJ model loaded in LWJGL has a black area with no texture

  - by gambiting

  I have a problem with loading an .obj file in LWJGL and its textures. The object is a tree(it's a paid model from TurboSquid, so I can't post it here,but here's the link if you want to see how it should look like): http://www.turbosquid.com/FullPreview/Index.cfm/ID/701294 I wrote a custom OBJ loader using the LWJGL tutorial from their wiki. It looks like this: public class OBJLoader { public static Model loadModel(File f) throws FileNotFoundException, IOException { BufferedReader reader = new BufferedReader(new FileReader(f)); Model m = new Model(); String line; Texture currentTexture = null; while((line=reader.readLine()) != null) { if(line.startsWith("v ")) { float x = Float.valueOf(line.split(" ")[1]); float y = Float.valueOf(line.split(" ")[2]); float z = Float.valueOf(line.split(" ")[3]); m.verticies.add(new Vector3f(x,y,z)); }else if(line.startsWith("vn ")) { float x = Float.valueOf(line.split(" ")[1]); float y = Float.valueOf(line.split(" ")[2]); float z = Float.valueOf(line.split(" ")[3]); m.normals.add(new Vector3f(x,y,z)); }else if(line.startsWith("vt ")) { float x = Float.valueOf(line.split(" ")[1]); float y = Float.valueOf(line.split(" ")[2]); m.texVerticies.add(new Vector2f(x,y)); }else if(line.startsWith("f ")) { Vector3f vertexIndicies = new Vector3f(Float.valueOf(line.split(" ")[1].split("/")[0]), Float.valueOf(line.split(" ")[2].split("/")[0]), Float.valueOf(line.split(" ")[3].split("/")[0])); Vector3f textureIndicies = new Vector3f(Float.valueOf(line.split(" ")[1].split("/")[1]), Float.valueOf(line.split(" ")[2].split("/")[1]), Float.valueOf(line.split(" ")[3].split("/")[1])); Vector3f normalIndicies = new Vector3f(Float.valueOf(line.split(" ")[1].split("/")[2]), Float.valueOf(line.split(" ")[2].split("/")[2]), Float.valueOf(line.split(" ")[3].split("/")[2])); m.faces.add(new Face(vertexIndicies,textureIndicies,normalIndicies,currentTexture.getTextureID())); }else if(line.startsWith("g ")) { if(line.length()>2) { String name = line.split(" ")[1]; currentTexture = TextureLoader.getTexture("PNG", ResourceLoader.getResourceAsStream("res/" + name + ".png")); System.out.println(currentTexture.getTextureID()); } } } reader.close(); System.out.println(m.verticies.size() + " verticies"); System.out.println(m.normals.size() + " normals"); System.out.println(m.texVerticies.size() + " texture coordinates"); System.out.println(m.faces.size() + " faces"); return m; } } Then I create a display list for my model using this code: objectDisplayList = GL11.glGenLists(1); GL11.glNewList(objectDisplayList, GL11.GL_COMPILE); Model m = null; try { m = OBJLoader.loadModel(new File("res/untitled4.obj")); } catch (Exception e1) { e1.printStackTrace(); } int currentTexture=0; for(Face face: m.faces) { if(face.texture!=currentTexture) { currentTexture = face.texture; GL11.glBindTexture(GL11.GL_TEXTURE_2D, currentTexture); } GL11.glColor3f(1f, 1f, 1f); GL11.glBegin(GL11.GL_TRIANGLES); Vector3f n1 = m.normals.get((int) face.normal.x - 1); GL11.glNormal3f(n1.x, n1.y, n1.z); Vector2f t1 = m.texVerticies.get((int) face.textures.x -1); GL11.glTexCoord2f(t1.x, t1.y); Vector3f v1 = m.verticies.get((int) face.vertex.x - 1); GL11.glVertex3f(v1.x, v1.y, v1.z); Vector3f n2 = m.normals.get((int) face.normal.y - 1); GL11.glNormal3f(n2.x, n2.y, n2.z); Vector2f t2 = m.texVerticies.get((int) face.textures.y -1); GL11.glTexCoord2f(t2.x, t2.y); Vector3f v2 = m.verticies.get((int) face.vertex.y - 1); GL11.glVertex3f(v2.x, v2.y, v2.z); Vector3f n3 = m.normals.get((int) face.normal.z - 1); GL11.glNormal3f(n3.x, n3.y, n3.z); Vector2f t3 = m.texVerticies.get((int) face.textures.z -1); GL11.glTexCoord2f(t3.x, t3.y); Vector3f v3 = m.verticies.get((int) face.vertex.z - 1); GL11.glVertex3f(v3.x, v3.y, v3.z); GL11.glEnd(); } GL11.glEndList(); The currentTexture is an int - it contains the ID of the currently used texture. So my model looks absolutely fine without textures: (sorry I cannot post hyperlinks since I am a new user) i.imgur.com/VtoK0.png But look what happens if I enable GL_TEXTURE_2D: i.imgur.com/z8Kli.png i.imgur.com/5e9nn.png i.imgur.com/FAHM9.png As you can see an entire side of the tree appears to be missing - and it's not transparent, since it's not in the colour of the background - it's rendered black. It's not a problem with the model - if I load it using Kanji's OBJ loader it works fine(but the thing is,that I need to write my own OBJ loader) i.imgur.com/YDATo.png this is my OpenGL init section: //init display try { Display.setDisplayMode(new DisplayMode(Support.SCREEN_WIDTH, Support.SCREEN_HEIGHT)); Display.create(); Display.setVSyncEnabled(true); } catch (LWJGLException e) { e.printStackTrace(); System.exit(0); } GL11.glLoadIdentity(); GL11.glEnable(GL11.GL_TEXTURE_2D); GL11.glClearColor(1.0f, 0.0f, 0.0f, 1.0f); GL11.glShadeModel(GL11.GL_SMOOTH); GL11.glEnable(GL11.GL_DEPTH_TEST); GL11.glDepthFunc(GL11.GL_LESS); GL11.glDepthMask(true); GL11.glEnable(GL11.GL_NORMALIZE); GL11.glMatrixMode(GL11.GL_PROJECTION); GLU.gluPerspective (90.0f,800f/600f, 1f, 500.0f); GL11.glMatrixMode(GL11.GL_MODELVIEW); GL11.glEnable(GL11.GL_CULL_FACE); GL11.glCullFace(GL11.GL_BACK); //enable lighting GL11.glEnable(GL11.GL_LIGHTING); ByteBuffer temp = ByteBuffer.allocateDirect(16); temp.order(ByteOrder.nativeOrder()); GL11.glMaterial(GL11.GL_FRONT, GL11.GL_DIFFUSE, (FloatBuffer)temp.asFloatBuffer().put(lightDiffuse).flip()); GL11.glMaterialf(GL11.GL_FRONT, GL11.GL_SHININESS,(int)material_shinyness); GL11.glLight(GL11.GL_LIGHT2, GL11.GL_DIFFUSE, (FloatBuffer)temp.asFloatBuffer().put(lightDiffuse2).flip()); // Setup The Diffuse Light GL11.glLight(GL11.GL_LIGHT2, GL11.GL_POSITION,(FloatBuffer)temp.asFloatBuffer().put(lightPosition2).flip()); GL11.glLight(GL11.GL_LIGHT2, GL11.GL_AMBIENT,(FloatBuffer)temp.asFloatBuffer().put(lightAmbient).flip()); GL11.glLight(GL11.GL_LIGHT2, GL11.GL_SPECULAR,(FloatBuffer)temp.asFloatBuffer().put(lightDiffuse2).flip()); GL11.glLightf(GL11.GL_LIGHT2, GL11.GL_CONSTANT_ATTENUATION, 0.1f); GL11.glLightf(GL11.GL_LIGHT2, GL11.GL_LINEAR_ATTENUATION, 0.0f); GL11.glLightf(GL11.GL_LIGHT2, GL11.GL_QUADRATIC_ATTENUATION, 0.0f); GL11.glEnable(GL11.GL_LIGHT2); Could somebody please help me?

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• F# and ArcObjects, Part 3

  - by Marko Apfel

  Today i played a little bit with IFeature-sequences and piping data. The result was a calculator of the bounding box around all features in a feature class. Maybe a little bit dirty, but for learning was it OK. ;-) open System;; #I "C:\Program Files\ArcGIS\DotNet";; #r "ESRI.ArcGIS.System.dll";; #r "ESRI.ArcGIS.DataSourcesGDB.dll";; #r "ESRI.ArcGIS.Geodatabase.dll";; #r "ESRI.ArcGIS.Geometry.dll";; open ESRI.ArcGIS.esriSystem;; open ESRI.ArcGIS.DataSourcesGDB;; open ESRI.ArcGIS.Geodatabase;; open ESRI.ArcGIS.Geometry; let aoInitialize = new AoInitializeClass();; let status = aoInitialize.Initialize(esriLicenseProductCode.esriLicenseProductCodeArcEditor);; let workspacefactory = new SdeWorkspaceFactoryClass();; let connection = "SERVER=okul;DATABASE=p;VERSION=sde.default;INSTANCE=sde:sqlserver:okul;USER=s;PASSWORD=g";; let workspace = workspacefactory.OpenFromString(connection, 0);; let featureWorkspace = (box workspace) :?> IFeatureWorkspace;; let featureClass = featureWorkspace.OpenFeatureClass("Praxair.SFG.BP_L_ROHR");; let queryFilter = new QueryFilterClass();; let featureCursor = featureClass.Search(queryFilter, true);; let featureCursorSeq (featureCursor : IFeatureCursor) = let actualFeature = ref (featureCursor.NextFeature()) seq { while (!actualFeature) <> null do yield actualFeature do actualFeature := featureCursor.NextFeature() };; let min x y = if x < y then x else y;; let max x y = if x > y then x else y;; let info s (x : IEnvelope) = printfn "%s xMin:{%f} xMax: {%f} yMin:{%f} yMax: {%f}" s x.XMin x.XMax x.YMin x.YMax;; let con (env1 : IEnvelope) (env2 : IEnvelope) = let env = (new EnvelopeClass()) :> IEnvelope env.XMin <- min env1.XMin env2.XMin env.XMax <- max env1.XMax env2.XMax env.YMin <- min env1.YMin env2.YMin env.YMax <- max env1.YMax env2.YMax info "Intermediate" env env;; let feature = featureClass.GetFeature(100);; let ext = feature.Extent;; let BoundingBox featureClassName = let featureClass = featureWorkspace.OpenFeatureClass(featureClassName) let queryFilter = new QueryFilterClass() let featureCursor = featureClass.Search(queryFilter, true) let featureCursorSeq (featureCursor : IFeatureCursor) = let actualFeature = ref (featureCursor.NextFeature()) seq { while (!actualFeature) <> null do yield actualFeature do actualFeature := featureCursor.NextFeature() } featureCursorSeq featureCursor |> Seq.map (fun feature -> (!feature).Extent) |> Seq.fold (fun (acc : IEnvelope) a -> info "Intermediate" acc (con acc a)) ext ;; let boundingBox = BoundingBox "Praxair.SFG.BP_L_ROHR";; info "Ende-Info:" boundingBox;;

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• Generate Strongly Typed Observable Events for the Reactive Extensions for .NET (Rx)

  - by Bobby Diaz

  I must have tried reading through the various explanations and introductions to the new Reactive Extensions for .NET before the concepts finally started sinking in.  The article that gave me the ah-ha moment was over on SilverlightShow.net and titled Using Reactive Extensions in Silverlight.  The author did a good job comparing the "normal" way of handling events vs. the new "reactive" methods. Admittedly, I still have more to learn about the Rx Framework, but I wanted to put together a sample project so I could start playing with the new Observable and IObservable<T> constructs.  I decided to throw together a whiteboard application in Silverlight based on the Drawing with Rx example on the aforementioned article.  At the very least, I figured I would learn a thing or two about a new technology, but my real goal is to create a fun application that I can share with the kids since they love drawing and coloring so much! Here is the code sample that I borrowed from the article: var mouseMoveEvent = Observable.FromEvent<MouseEventArgs>(this, "MouseMove"); var mouseLeftButtonDown = Observable.FromEvent<MouseButtonEventArgs>(this, "MouseLeftButtonDown"); var mouseLeftButtonUp = Observable.FromEvent<MouseButtonEventArgs>(this, "MouseLeftButtonUp");       var draggingEvents = from pos in mouseMoveEvent                              .SkipUntil(mouseLeftButtonDown)                              .TakeUntil(mouseLeftButtonUp)                              .Let(mm => mm.Zip(mm.Skip(1), (prev, cur) =>                                  new                                  {                                      X2 = cur.EventArgs.GetPosition(this).X,                                      X1 = prev.EventArgs.GetPosition(this).X,                                      Y2 = cur.EventArgs.GetPosition(this).Y,                                      Y1 = prev.EventArgs.GetPosition(this).Y                                  })).Repeat()                          select pos;       draggingEvents.Subscribe(p =>     {         Line line = new Line();         line.Stroke = new SolidColorBrush(Colors.Black);         line.StrokeEndLineCap = PenLineCap.Round;         line.StrokeLineJoin = PenLineJoin.Round;         line.StrokeThickness = 5;         line.X1 = p.X1;         line.Y1 = p.Y1;         line.X2 = p.X2;         line.Y2 = p.Y2;         this.LayoutRoot.Children.Add(line);     }); One thing that was nagging at the back of my mind was having to deal with the event names as strings, as well as the verbose syntax for the Observable.FromEvent<TEventArgs>() method.  I came up with a couple of static/helper classes to resolve both issues and also created a T4 template to auto-generate these helpers for any .NET type.  Take the following code from the above example: var mouseMoveEvent = Observable.FromEvent<MouseEventArgs>(this, "MouseMove"); var mouseLeftButtonDown = Observable.FromEvent<MouseButtonEventArgs>(this, "MouseLeftButtonDown"); var mouseLeftButtonUp = Observable.FromEvent<MouseButtonEventArgs>(this, "MouseLeftButtonUp"); Turns into this with the new static Events class: var mouseMoveEvent = Events.Mouse.Move.On(this); var mouseLeftButtonDown = Events.Mouse.LeftButtonDown.On(this); var mouseLeftButtonUp = Events.Mouse.LeftButtonUp.On(this); Or better yet, just remove the variable declarations altogether:     var draggingEvents = from pos in Events.Mouse.Move.On(this)                              .SkipUntil(Events.Mouse.LeftButtonDown.On(this))                              .TakeUntil(Events.Mouse.LeftButtonUp.On(this))                              .Let(mm => mm.Zip(mm.Skip(1), (prev, cur) =>                                  new                                  {                                      X2 = cur.EventArgs.GetPosition(this).X,                                      X1 = prev.EventArgs.GetPosition(this).X,                                      Y2 = cur.EventArgs.GetPosition(this).Y,                                      Y1 = prev.EventArgs.GetPosition(this).Y                                  })).Repeat()                          select pos; The Move, LeftButtonDown and LeftButtonUp members of the Events.Mouse class are readonly instances of the ObservableEvent<TTarget, TEventArgs> class that provide type-safe access to the events via the On() method.  Here is the code for the class: using System; using System.Collections.Generic; using System.Linq;   namespace System.Linq {     /// <summary>     /// Represents an event that can be managed via the <see cref="Observable"/> API.     /// </summary>     /// <typeparam name="TTarget">The type of the target.</typeparam>     /// <typeparam name="TEventArgs">The type of the event args.</typeparam>     public class ObservableEvent<TTarget, TEventArgs> where TEventArgs : EventArgs     {         /// <summary>         /// Initializes a new instance of the <see cref="ObservableEvent"/> class.         /// </summary>         /// <param name="eventName">Name of the event.</param>         protected ObservableEvent(String eventName)         {             EventName = eventName;         }           /// <summary>         /// Registers the specified event name.         /// </summary>         /// <param name="eventName">Name of the event.</param>         /// <returns></returns>         public static ObservableEvent<TTarget, TEventArgs> Register(String eventName)         {             return new ObservableEvent<TTarget, TEventArgs>(eventName);         }           /// <summary>         /// Creates an enumerable sequence of event values for the specified target.         /// </summary>         /// <param name="target">The target.</param>         /// <returns></returns>         public IObservable<IEvent<TEventArgs>> On(TTarget target)         {             return Observable.FromEvent<TEventArgs>(target, EventName);         }           /// <summary>         /// Gets or sets the name of the event.         /// </summary>         /// <value>The name of the event.</value>         public string EventName { get; private set; }     } } And this is how it's used:     /// <summary>     /// Categorizes <see cref="ObservableEvents"/> by class and/or functionality.     /// </summary>     public static partial class Events     {         /// <summary>         /// Implements a set of predefined <see cref="ObservableEvent"/>s         /// for the <see cref="System.Windows.System.Windows.UIElement"/> class         /// that represent mouse related events.         /// </summary>         public static partial class Mouse         {             /// <summary>Represents the MouseMove event.</summary>             public static readonly ObservableEvent<UIElement, MouseEventArgs> Move =                 ObservableEvent<UIElement, MouseEventArgs>.Register("MouseMove");               // additional members omitted...         }     } The source code contains a static Events class with prefedined members for various categories (Key, Mouse, etc.).  There is also an Events.tt template that you can customize to generate additional event categories for any .NET type.  All you should have to do is add the name of your class to the types collection near the top of the template:     types = new Dictionary<String, Type>()     {         //{ "Microsoft.Maps.MapControl.Map, Microsoft.Maps.MapControl", null }         { "System.Windows.FrameworkElement, System.Windows", null },         { "Whiteboard.MainPage, Whiteboard", null }     }; The template is also a bit rough at this point, but at least it generates code that *should* compile.  Please let me know if you run into any issues with it.  Some people have reported errors when trying to use T4 templates within a Silverlight project, but I was able to get it to work with a little black magic...  You can download the source code for this project or play around with the live demo.  Just be warned that it is at a very early stage so don't expect to find much today.  I plan on adding alot more options like pen colors and sizes, saving, printing, etc. as time permits.  HINT: hold down the ESC key to erase! Enjoy! Additional Resources Using Reactive Extensions in Silverlight DevLabs: Reactive Extensions for .NET (Rx) Rx Framework Part III - LINQ to Events - Generating GetEventName() Wrapper Methods using T4

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• Partial Page Rendering in OAF Page

  - by PRajkumar

  Let us try to implement partial page rendering for a text item. If value of TextItem1 is null then TextItem2 will not be appreared on UI. If value of TextItem1 is not null then TextItem2 will be appreared on UI.   1. Create a New OA Workspace and Empty OA Project File> New > General> Workspace Configured for Oracle Applications File Name -- PPRProj Project Name – PPRDemoProj Default Package -- prajkumar.oracle.apps.fnd.pprdemo   2. Create Application Module AM PPRDemoProj right click > New > ADF Business Components > Application Module Name -- PPRAM Package -- prajkumar.oracle.apps.fnd.pprdemo.server   Check Application Module Class: PPRAMImpl Generate JavaFile(s)   3. Create a PPRVO View Object PPRDemoProj> New > ADF Business Components > View Objects Name – PPRVO Package – prajkumar.oracle.apps.fnd.pprdemo.server   In Attribute Page Click on New button and create transient primary key attribute with the following properties:   Attribute Property Name RowKey Type Number Updateable Always Key Attribute (Checked)   Click New button again and create transient attribute with the following properties:   Attribute Property Name TextItem2Render Type Boolean Updateable Always   Note – No Need to generate any JAVA files for PPRVO   4. Add Your View Object to Root UI Application Module Right click on PPRAM > Edit PPRAM > Data Model > Select PPRVO in Available View Objects list and shuttle to Data Model list   5. Create a OA components Page PPRDemoProj right click > New > OA Components > Page Name – PPRPG Package -- prajkumar.oracle.apps.fnd.pprdemo.webui   6. Modify the Page Layout (Top-level) Region   Attribute Property ID PageLayoutRN Region Style pageLayout Form Property True Auto Footer True Window Title PPR Demo Window Title True Title PPR Demo Page Header AM Definition prajkumar.oracle.apps.fnd.pprdemo.server.PPRAM   7. Create the Second Region (Main Content Region) Right click on PageLayoutRN > New > Region   Attribute Property ID MainRN Region Style messageComponentLayout   8. Create Two Text Items   Create First messageTextItem -- Right click on MainRN > New > messageTextInput   Attribute Property ID TextItem1 Region Style messageTextInput Prompt Text Item1 Length 20 Disable Server Side Validation True Disable Client Side Validation True Action Type firePartialAction Event TextItem1Change Submit True   Note -- Disable Client Side Validation and Event property appears after you set the Action Type property to firePartialAction   Create Second messageTextItem -- Select MainRN right click > New > messageTextInput   Attribute Property ID TextItem2 Region Style messageTextInput Prompt Text Item2 Length 20 Rendered ${oa.PPRVO1.TextItem2Render}   9. Add Following code in PPRAMImpl.java   import oracle.apps.fnd.framework.OARow; import oracle.apps.fnd.framework.OAViewObject; import oracle.apps.fnd.framework.server.OAApplicationModuleImpl; import oracle.apps.fnd.framework.server.OAViewObjectImpl; public void handlePPRAction()  {   Number val = 1;  OAViewObject vo = (OAViewObject)findViewObject("PPRVO1");  if (vo != null)   {    if (vo.getFetchedRowCount() == 0)    {     vo.setMaxFetchSize(0);     vo.executeQuery();     vo.insertRow(vo.createRow());     OARow row = (OARow)vo.first();            row.setAttribute("RowKey", val);    row.setAttribute("TextItem2Render", Boolean.FALSE);      }  } }   10. Implement Controller for Page Select PageLayoutRN in Structure pane right click > Set New Controller Package Name -- prajkumar.oracle.apps.fnd.pprdemo.webui Class Name – PPRCO   Write following code in processFormRequest function of PPRCO Controller   import oracle.apps.fnd.framework.OARow; import oracle.apps.fnd.framework.OAViewObject; public void processRequest(OAPageContext pageContext, OAWebBean webBean) {  super.processRequest(pageContext, webBean);  PPRAMImpl am = (PPRAMImpl)pageContext.getApplicationModule(webBean);      am.invokeMethod("handlePPRAction"); } public void processFormRequest(OAPageContext pageContext, OAWebBean webBean) {  super.processFormRequest(pageContext, webBean);        PPRAMImpl am = (PPRAMImpl)pageContext.getApplicationModule(webBean);  OAViewObject vo = (OAViewObject)am.findViewObject("PPRVO1");  OARow row = (OARow)vo.getCurrentRow();        if ("TextItem1Change".equals(pageContext.getParameter(EVENT_PARAM)))  {   if (pageContext.getParameter("TextItem1").equals(""))   {    row.setAttribute("TextItem2Render", Boolean.FALSE);   }   else   {    row.setAttribute("TextItem2Render", Boolean.TRUE);   }  } }   11. Congratulation you have successfully finished. Run Your PPRPG page and Test Your Work          

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• C#: Optional Parameters - Pros and Pitfalls

  - by James Michael Hare

  When Microsoft rolled out Visual Studio 2010 with C# 4, I was very excited to learn how I could apply all the new features and enhancements to help make me and my team more productive developers. Default parameters have been around forever in C++, and were intentionally omitted in Java in favor of using overloading to satisfy that need as it was though that having too many default parameters could introduce code safety issues.  To some extent I can understand that move, as I’ve been bitten by default parameter pitfalls before, but at the same time I feel like Java threw out the baby with the bathwater in that move and I’m glad to see C# now has them. This post briefly discusses the pros and pitfalls of using default parameters.  I’m avoiding saying cons, because I really don’t believe using default parameters is a negative thing, I just think there are things you must watch for and guard against to avoid abuses that can cause code safety issues. Pro: Default Parameters Can Simplify Code Let’s start out with positives.  Consider how much cleaner it is to reduce all the overloads in methods or constructors that simply exist to give the semblance of optional parameters.  For example, we could have a Message class defined which allows for all possible initializations of a Message: 1: public class Message 2: { 3: // can either cascade these like this or duplicate the defaults (which can introduce risk) 4: public Message() 5: : this(string.Empty) 6: { 7: } 8:  9: public Message(string text) 10: : this(text, null) 11: { 12: } 13:  14: public Message(string text, IDictionary<string, string> properties) 15: : this(text, properties, -1) 16: { 17: } 18:  19: public Message(string text, IDictionary<string, string> properties, long timeToLive) 20: { 21: // ... 22: } 23: }   Now consider the same code with default parameters: 1: public class Message 2: { 3: // can either cascade these like this or duplicate the defaults (which can introduce risk) 4: public Message(string text = "", IDictionary<string, string> properties = null, long timeToLive = -1) 5: { 6: // ... 7: } 8: }   Much more clean and concise and no repetitive coding!  In addition, in the past if you wanted to be able to cleanly supply timeToLive and accept the default on text and properties above, you would need to either create another overload, or pass in the defaults explicitly.  With named parameters, though, we can do this easily: 1: var msg = new Message(timeToLive: 100);   Pro: Named Parameters can Improve Readability I must say one of my favorite things with the default parameters addition in C# is the named parameters.  It lets code be a lot easier to understand visually with no comments.  Think how many times you’ve run across a TimeSpan declaration with 4 arguments and wondered if they were passing in days/hours/minutes/seconds or hours/minutes/seconds/milliseconds.  A novice running through your code may wonder what it is.  Named arguments can help resolve the visual ambiguity: 1: // is this days/hours/minutes/seconds (no) or hours/minutes/seconds/milliseconds (yes) 2: var ts = new TimeSpan(1, 2, 3, 4); 3:  4: // this however is visually very explicit 5: var ts = new TimeSpan(days: 1, hours: 2, minutes: 3, seconds: 4);   Or think of the times you’ve run across something passing a Boolean literal and wondered what it was: 1: // what is false here? 2: var sub = CreateSubscriber(hostname, port, false); 3:  4: // aha! Much more visibly clear 5: var sub = CreateSubscriber(hostname, port, isBuffered: false);   Pitfall: Don't Insert new Default Parameters In Between Existing Defaults Now let’s consider a two potential pitfalls.  The first is really an abuse.  It’s not really a fault of the default parameters themselves, but a fault in the use of them.  Let’s consider that Message constructor again with defaults.  Let’s say you want to add a messagePriority to the message and you think this is more important than a timeToLive value, so you decide to put messagePriority before it in the default, this gives you: 1: public class Message 2: { 3: public Message(string text = "", IDictionary<string, string> properties = null, int priority = 5, long timeToLive = -1) 4: { 5: // ... 6: } 7: }   Oh boy have we set ourselves up for failure!  Why?  Think of all the code out there that could already be using the library that already specified the timeToLive, such as this possible call: 1: var msg = new Message(“An error occurred”, myProperties, 1000);   Before this specified a message with a TTL of 1000, now it specifies a message with a priority of 1000 and a time to live of -1 (infinite).  All of this with NO compiler errors or warnings. So the rule to take away is if you are adding new default parameters to a method that’s currently in use, make sure you add them to the end of the list or create a brand new method or overload. Pitfall: Beware of Default Parameters in Inheritance and Interface Implementation Now, the second potential pitfalls has to do with inheritance and interface implementation.  I’ll illustrate with a puzzle: 1: public interface ITag 2: { 3: void WriteTag(string tagName = "ITag"); 4: } 5:  6: public class BaseTag : ITag 7: { 8: public virtual void WriteTag(string tagName = "BaseTag") { Console.WriteLine(tagName); } 9: } 10:  11: public class SubTag : BaseTag 12: { 13: public override void WriteTag(string tagName = "SubTag") { Console.WriteLine(tagName); } 14: } 15:  16: public static class Program 17: { 18: public static void Main() 19: { 20: SubTag subTag = new SubTag(); 21: BaseTag subByBaseTag = subTag; 22: ITag subByInterfaceTag = subTag; 23:  24: // what happens here? 25: subTag.WriteTag(); 26: subByBaseTag.WriteTag(); 27: subByInterfaceTag.WriteTag(); 28: } 29: }   What happens?  Well, even though the object in each case is SubTag whose tag is “SubTag”, you will get: 1: SubTag 2: BaseTag 3: ITag   Why?  Because default parameter are resolved at compile time, not runtime!  This means that the default does not belong to the object being called, but by the reference type it’s being called through.  Since the SubTag instance is being called through an ITag reference, it will use the default specified in ITag. So the moral of the story here is to be very careful how you specify defaults in interfaces or inheritance hierarchies.  I would suggest avoiding repeating them, and instead concentrating on the layer of classes or interfaces you must likely expect your caller to be calling from. For example, if you have a messaging factory that returns an IMessage which can be either an MsmqMessage or JmsMessage, it only makes since to put the defaults at the IMessage level since chances are your user will be using the interface only. So let’s sum up.  In general, I really love default and named parameters in C# 4.0.  I think they’re a great tool to help make your code easier to read and maintain when used correctly. On the plus side, default parameters: Reduce redundant overloading for the sake of providing optional calling structures. Improve readability by being able to name an ambiguous argument. But remember to make sure you: Do not insert new default parameters in the middle of an existing set of default parameters, this may cause unpredictable behavior that may not necessarily throw a syntax error – add to end of list or create new method. Be extremely careful how you use default parameters in inheritance hierarchies and interfaces – choose the most appropriate level to add the defaults based on expected usage. Technorati Tags: C#,.NET,Software,Default Parameters

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• Code style Tip: Case insensitive string comparison

  - by Michael Freidgeim

  Goodif (String.Compare(myString, ALL_TEXT, StringComparison.OrdinalIgnoreCase) == 0)                                {                                         return true;                                }OK(not obvious what true means) if (String.Compare(myString, ALL_TEXT, true) == 0)                                {                                         return true;                                }BAD: (non null safe) if (myString.ToLower()==ALL_TEXT.ToLower()                                {                                         return true;                                }

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• cocos2d fragment shader transparency

  - by fiddler

  I'm playing with custom fragment shaders for a CCSprite (see http://www.raywenderlich.com/4428/how-to-mask-a-sprite-with-cocos2d-2-0). But I can't figure out why I get a white color whith the following line: gl_FragColor = vec4(1.0,1.0,1.0,0.0); Whereas I have a transparent color with this: gl_FragColor = vec4(0.0,0.0,0.0,0.0); Shouln't I have a transparent sprite in both cases ? (alpha channel is null, right ?)

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• BAM design pointers

  - by Kavitha Srinivasan

  In working recently with a large Oracle customer on SOA and BAM, I discovered that some BAM best practices are not quite well known as I had always assumed ! There is a doc bug out to formally incorporate those learnings but here are a few notes..  EMS-DO parity When using EMS (Enterprise Message Source) as a BAM feed, the best practice is to use one EMS to write to one Data Object. There is a possibility of collisions and duplicates when multiple EMS write to the same row of a DO at the same time. This customer had 17 EMS writing to one DO at the same time. Every sensor in their BPEL process writes to one topic but the Topic was read by 1 EMS corresponding to one sensor. They then used XSL within BAM to transform the payload into the BAM DO format. And hence for a given BPEL instance, 17 sensors fired, populated 1 JMS topic, was consumed by 17 EMS which in turn wrote to 1 DataObject.(You can image what would happen for later versions of the application that needs to send more information to BAM !).  We modified their design to use one Master XSL based on sensorname for all sensors relating to a DO- say Data Object 'Orders' and were able to thus reduce the 17 EMS to 1 with a master XSL. For those of you wondering about how squeaky clean this design is, you are right ! This is indeed not squeaky clean and that brings us to yet another 'inferred' best practice. (I try very hard not to state the obvious in my blogs with the hope that everytime I blog, it is very useful but this one is an exception.) Transformations and Calculations It is optimal to do transformations within an engine like BPEL. Not only does this provide modelling ease with a nice GUI XSL mapper in JDeveloper, the XSL engine in BPEL is quite efficient at runtime as well. And so, doing XSL transformations in BAM is not quite prudent.  The same is true for any non-trivial calculations as well. It is best to do all transformations,calcuations and sanitize the data in a BPEL or like layer and then send this to BAM (via JMS, WS etc.) This then delegates simply the function of report rendering and mechanics of real-time reporting to the Oracle BAM reporting tool which it is most suited to do. All nulls are not created equal Here is yet another possibly known fact but reiterated here. For an EMS with an Upsert operation: a) If Empty tags or tags with no value are sent like <Tag1/> or <Tag1></Tag1>, the DO will be overwritten with --null-- b) If Empty tags are suppressed ie not generated at all, the corresponding DO field will NOT be overwritten. The field will have whatever value existed previously.  For an EMS with an Insert operation, both tags with an empty value and no tags result in –null-- being written to the DO. Hope this helps .. Happy 4th!

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• T-SQL Tuesday #31 - Logging Tricks with CONTEXT_INFO

  - by Most Valuable Yak (Rob Volk)

  This month's T-SQL Tuesday is being hosted by Aaron Nelson [b | t], fellow Atlantan (the city in Georgia, not the famous sunken city, or the resort in the Bahamas) and covers the topic of logging (the recording of information, not the harvesting of trees) and maintains the fine T-SQL Tuesday tradition begun by Adam Machanic [b | t] (the SQL Server guru, not the guy who fixes cars, check the spelling again, there will be a quiz later). This is a trick I learned from Fernando Guerrero [b | t] waaaaaay back during the PASS Summit 2004 in sunny, hurricane-infested Orlando, during his session on Secret SQL Server (not sure if that's the correct title, and I haven't used parentheses in this paragraph yet).  CONTEXT_INFO is a neat little feature that's existed since SQL Server 2000 and perhaps even earlier.  It lets you assign data to the current session/connection, and maintains that data until you disconnect or change it.  In addition to the CONTEXT_INFO() function, you can also query the context_info column in sys.dm_exec_sessions, or even sysprocesses if you're still running SQL Server 2000, if you need to see it for another session. While you're limited to 128 bytes, one big advantage that CONTEXT_INFO has is that it's independent of any transactions.  If you've ever logged to a table in a transaction and then lost messages when it rolled back, you can understand how aggravating it can be.  CONTEXT_INFO also survives across multiple SQL batches (GO separators) in the same connection, so for those of you who were going to suggest "just log to a table variable, they don't get rolled back":  HA-HA, I GOT YOU!  Since GO starts a new batch all variable declarations are lost. Here's a simple example I recently used at work.  I had to test database mirroring configurations for disaster recovery scenarios and measure the network throughput.  I also needed to log how long it took for the script to run and include the mirror settings for the database in question.  I decided to use AdventureWorks as my database model, and Adam Machanic's Big Adventure script to provide a fairly large workload that's repeatable and easily scalable.  My test would consist of several copies of AdventureWorks running the Big Adventure script while I mirrored the databases (or not). Since Adam's script contains several batches, I decided CONTEXT_INFO would have to be used.  As it turns out, I only needed to grab the start time at the beginning, I could get the rest of the data at the end of the process.   The code is pretty small: declare @time binary(128)=cast(getdate() as binary(8)) set context_info @time   ... rest of Big Adventure code ...   go use master; insert mirror_test(server,role,partner,db,state,safety,start,duration) select @@servername, mirroring_role_desc, mirroring_partner_instance, db_name(database_id), mirroring_state_desc, mirroring_safety_level_desc, cast(cast(context_info() as binary(8)) as datetime), datediff(s,cast(cast(context_info() as binary(8)) as datetime),getdate()) from sys.database_mirroring where db_name(database_id) like 'Adv%';   I declared @time as a binary(128) since CONTEXT_INFO is defined that way.  I couldn't convert GETDATE() to binary(128) as it would pad the first 120 bytes as 0x00.  To keep the CAST functions simple and avoid using SUBSTRING, I decided to CAST GETDATE() as binary(8) and let SQL Server do the implicit conversion.  It's not the safest way perhaps, but it works on my machine. :) As I mentioned earlier, you can query system views for sessions and get their CONTEXT_INFO.  With a little boilerplate code this can be used to monitor long-running procedures, in case you need to kill a process, or are just curious  how long certain parts take.  In this example, I added code to Adam's Big Adventure script to set CONTEXT_INFO messages at strategic places I want to monitor.  (His code is in UPPERCASE as it was in the original, mine is all lowercase): declare @msg binary(128) set @msg=cast('Altering bigProduct.ProductID' as binary(128)) set context_info @msg go ALTER TABLE bigProduct ALTER COLUMN ProductID INT NOT NULL GO set context_info 0x0 go declare @msg1 binary(128) set @msg1=cast('Adding pk_bigProduct Constraint' as binary(128)) set context_info @msg1 go ALTER TABLE bigProduct ADD CONSTRAINT pk_bigProduct PRIMARY KEY (ProductID) GO set context_info 0x0 go declare @msg2 binary(128) set @msg2=cast('Altering bigTransactionHistory.TransactionID' as binary(128)) set context_info @msg2 go ALTER TABLE bigTransactionHistory ALTER COLUMN TransactionID INT NOT NULL GO set context_info 0x0 go declare @msg3 binary(128) set @msg3=cast('Adding pk_bigTransactionHistory Constraint' as binary(128)) set context_info @msg3 go ALTER TABLE bigTransactionHistory ADD CONSTRAINT pk_bigTransactionHistory PRIMARY KEY NONCLUSTERED(TransactionID) GO set context_info 0x0 go declare @msg4 binary(128) set @msg4=cast('Creating IX_ProductId_TransactionDate Index' as binary(128)) set context_info @msg4 go CREATE NONCLUSTERED INDEX IX_ProductId_TransactionDate ON bigTransactionHistory(ProductId,TransactionDate) INCLUDE(Quantity,ActualCost) GO set context_info 0x0   This doesn't include the entire script, only those portions that altered a table or created an index.  One annoyance is that SET CONTEXT_INFO requires a literal or variable, you can't use an expression.  And since GO starts a new batch I need to declare a variable in each one.  And of course I have to use CAST because it won't implicitly convert varchar to binary.  And even though context_info is a nullable column, you can't SET CONTEXT_INFO NULL, so I have to use SET CONTEXT_INFO 0x0 to clear the message after the statement completes.  And if you're thinking of turning this into a UDF, you can't, although a stored procedure would work. So what does all this aggravation get you?  As the code runs, if I want to see which stage the session is at, I can run the following (assuming SPID 51 is the one I want): select CAST(context_info as varchar(128)) from sys.dm_exec_sessions where session_id=51   Since SQL Server 2005 introduced the new system and dynamic management views (DMVs) there's not as much need for tagging a session with these kinds of messages.  You can get the session start time and currently executing statement from them, and neatly presented if you use Adam's sp_whoisactive utility (and you absolutely should be using it).  Of course you can always use xp_cmdshell, a CLR function, or some other tricks to log information outside of a SQL transaction.  All the same, I've used this trick to monitor long-running reports at a previous job, and I still think CONTEXT_INFO is a great feature, especially if you're still using SQL Server 2000 or want to supplement your instrumentation.  If you'd like an exercise, consider adding the system time to the messages in the last example, and an automated job to query and parse it from the system tables.  That would let you track how long each statement ran without having to run Profiler. #TSQL2sDay

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