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• provisioning profile problem?

  - by senthilmuthu

  hi, i am new to creating provisioning profile.can i use same provisioning profile for all applications(except using *, we can install one app at a time)?for example if i go bundle identifier and give my comapanyname only as com.mycompanyname(apple id).${PRODUCT_NAME:identifier},and also i set my certifate,after that will my application run in device?(without creating provisioning file for each application),i have seen like this in my friend system,how is it possible?any help please?

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• UIVIewController not released when view is dismissed

  - by Nelson Ko

  I have a main view, mainWindow, which presents a couple of buttons. Both buttons create a new UIViewController (mapViewController), but one will start a game and the other will resume it. Both buttons are linked via StoryBoard to the same View. They are segued to modal views as I'm not using the NavigationController. So in a typical game, if a person starts a game, but then goes back to the main menu, he triggers: [self dismissViewControllerAnimated:YES completion:nil ]; to return to the main menu. I would assume the view controller is released at this point. The user resumes the game with the second button by opening another instance of mapViewController. What is happening, tho, is some touch events will trigger methods on the original instance (and write status updates to them - therefore invisible to the current view). When I put a breakpoint in the mapViewController code, I can see the instance will be one or the other (one of which should be released). I have tried putting a delegate to the mainWindow clearing the view: [self.delegate clearMapView]; where in the mainWindow - (void) clearMapView{ gameWindow = nil; } I have also tried self.view=nil; in the mapViewController. The mapViewController code contains MVC code, where the model is static. I wonder if this may prevent ARC from releasing the view. The model.m contains: static CanShieldModel *sharedInstance; + (CanShieldModel *) sharedModel { @synchronized(self) { if (!sharedInstance) sharedInstance = [[CanShieldModel alloc] init]; return sharedInstance; } return sharedInstance; } Another post which may have a lead, but so far not successful, is UIViewController not being released when popped I have in ViewDidLoad: // checks to see if app goes inactive - saves. [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(resignActive) name:UIApplicationWillResignActiveNotification object:nil]; with the corresponding in ViewDidUnload: [[NSNotificationCenter defaultCenter] removeObserver:self name:UIApplicationWillResignActiveNotification object:nil]; Does anyone have any suggestions? EDIT: - (void) prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender{ NSString *identifier = segue.identifier; if ([identifier isEqualToString: @"Start Game"]){ gameWindow = (ViewController *)[segue destinationViewController]; gameWindow.newgame=-1; gameWindow.delegate = self; } else if ([identifier isEqualToString: @"Resume Game"]){ gameWindow = (ViewController *)[segue destinationViewController]; gameWindow.newgame=0; gameWindow.delegate = self;

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• Replacing text after node

  - by Andrew

  I am trying to remove the "Hide this data" from this XML which is proceeded with the qualifier type="noView" <element version="Local"> <qualifier name="Public" type="View" /> Good to go </element> <element version="Local"> <qualifier name="Public" type="noView" /> Hide this data </element> I am using this XSL <?xml version="1.0"?> <xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform"> <xsl:template match="node()|@*"> <xsl:copy> <xsl:apply-templates select="@*"/> <xsl:apply-templates/> </xsl:copy> </xsl:template> <xsl:template match="qualifier"> <xsl:call-template name="replace-noview" /> </xsl:template> <xsl:template name="replace-noview"> <xsl:param name="text" select="@type"/> <xsl:choose> <xsl:when test="contains($text, 'noView')"> <xsl:copy-of select="."/> <xsl:text>DELETED</xsl:text> </xsl:when> <xsl:otherwise> <xsl:copy-of select="."/> </xsl:otherwise> </xsl:choose> </xsl:template> The output I'm getting is <element identifier="ContactName" version="Local"> <qualifier name="Public" type="View" /> Good to go </element> <element identifier="ContactName" version="Local"> <qualifier name="Public" type="noView" />DELETED Hide this data </element> I am matching the "noView" attribute and can add the "DELETED" text. However I need to remove the follow "Hide this data" text. The output I would like is <element identifier="ContactName" version="Local"> <qualifier name="Public" type="View" /> Good to go </element> <element identifier="ContactName" version="Local"> <qualifier name="Public" type="noView" /> DELETED </element>

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• ABPeoplePicker select and return SELECTED phone number

  - by palominoz

  Under (BOOL)peoplePickerNavigationController:(ABPeoplePickerNavigationController *) peoplePicker shouldContinueAfterSelectingPerson:(ABRecordRef)person property:(ABPropertyID)property identifier:(ABMultiValueIdentifier)identifier{} is it possible to get returned the phone number or somewhat the user has clicked?

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• What is the difference between declaring an enum with and without 'typedef'?

  - by freitass

  The standard way of declaring an enum in C++ seems to be: enum <identifier> { <list_of_elements> }; However, I have already seen some declarations like: typedef enum { <list_of_elements> } <identifier>; What is the difference between them, if it exists? Which one is correct?

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• identifiers in java with different versions?

  - by GK

  as we "No keyword should be used as an Identifier in java". But there will be some words like asser or enum or any other which have been added as keyword in version 1.4, 1.5 resp. So if any older version code is used to compile with new javac, what happens if that code contains these words as an identifier?

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• Need a MYSQL query to compare two tables and only output non matching results

  - by ee12csvt

  I have two tables in my database, one contains a list of items with other information on these items. The other table is contains a list of photographs of these items. The items table gives each item a unique identifier,which is used in the photographs table to identifier which item has been photographed. I need to output a list of items that are not linked to a photograph in the second table. Any ideas on how I can do this?

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• Ubuntu 10.04 not detecting multiple monitors

  - by user28837

  I have 2 graphics cards, the output from the lspci: 01:00.0 VGA compatible controller: ATI Technologies Inc RV770 [Radeon HD 4850] 02:00.0 VGA compatible controller: ATI Technologies Inc RV710 [Radeon HD 4350] I have one monitor connected to the 4850 and 2 connected to the 4350. However when I go into System Preferences Monitors the only monitor shown is the one connected to the 4850. Is there something I need to enable for it to be able to use the other card? How do I get this to work. Thanks. As per request: X.Org X Server 1.7.6 Release Date: 2010-03-17 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-25-server i686 Ubuntu Current Operating System: Linux jeff-desktop 2.6.32-22-generic-pae #33-Ubuntu SMP Wed Apr 28 14:57:29 UTC 2010 i686 Kernel command line: BOOT_IMAGE=/boot/vmlinuz-2.6.32-22-generic-pae root=UUID=852e1013-4ed6-40fd-a462-c29087888383 ro quiet splash Build Date: 23 April 2010 05:11:50PM xorg-server 2:1.7.6-2ubuntu7 (Bryce Harrington <[email protected]>) Current version of pixman: 0.16.4 Before reporting problems, check http://wiki.x.org to make sure that you have the latest version. Markers: (--) probed, (**) from config file, (==) default setting, (++) from command line, (!!) notice, (II) informational, (WW) warning, (EE) error, (NI) not implemented, (??) unknown. (==) Log file: "/var/log/Xorg.0.log", Time: Tue May 11 08:24:52 2010 (==) Using config file: "/etc/X11/xorg.conf" (==) Using config directory: "/usr/lib/X11/xorg.conf.d" (==) No Layout section. Using the first Screen section. (**) |-->Screen "Default Screen" (0) (**) | |-->Monitor "<default monitor>" (==) No device specified for screen "Default Screen". Using the first device section listed. (**) | |-->Device "Default Device" (==) No monitor specified for screen "Default Screen". Using a default monitor configuration. (==) Automatically adding devices (==) Automatically enabling devices (WW) The directory "/usr/share/fonts/X11/cyrillic" does not exist. Entry deleted from font path. (==) FontPath set to: /usr/share/fonts/X11/misc, /usr/share/fonts/X11/100dpi/:unscaled, /usr/share/fonts/X11/75dpi/:unscaled, /usr/share/fonts/X11/Type1, /usr/share/fonts/X11/100dpi, /usr/share/fonts/X11/75dpi, /var/lib/defoma/x-ttcidfont-conf.d/dirs/TrueType, built-ins (==) ModulePath set to "/usr/lib/xorg/extra-modules,/usr/lib/xorg/modules" (II) The server relies on udev to provide the list of input devices. If no devices become available, reconfigure udev or disable AutoAddDevices. (II) Loader magic: 0x81f0e80 (II) Module ABI versions: X.Org ANSI C Emulation: 0.4 X.Org Video Driver: 6.0 X.Org XInput driver : 7.0 X.Org Server Extension : 2.0 (++) using VT number 7 (--) PCI:*(0:1:0:0) 1002:9442:174b:e104 ATI Technologies Inc RV770 [Radeon HD 4850] rev 0, Mem @ 0xc0000000/268435456, 0xfe7e0000/65536, I/O @ 0x0000a000/256, BIOS @ 0x????????/131072 (--) PCI: (0:2:0:0) 1002:954f:1462:1618 ATI Technologies Inc RV710 [Radeon HD 4350] rev 0, Mem @ 0xd0000000/268435456, 0xfe8e0000/65536, I/O @ 0x0000b000/256, BIOS @ 0x????????/131072 (WW) Open ACPI failed (/var/run/acpid.socket) (No such file or directory) (II) "extmod" will be loaded by default. (II) "dbe" will be loaded by default. (II) "glx" will be loaded. This was enabled by default and also specified in the config file. (II) "record" will be loaded by default. (II) "dri" will be loaded by default. (II) "dri2" will be loaded by default. (II) LoadModule: "glx" (II) Loading /usr/lib/xorg/extra-modules/modules/extensions/libglx.so (II) Module glx: vendor="FireGL - ATI Technologies Inc." compiled for 7.5.0, module version = 1.0.0 (II) Loading extension GLX (II) LoadModule: "extmod" (II) Loading /usr/lib/xorg/modules/extensions/libextmod.so (II) Module extmod: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.0.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension MIT-SCREEN-SAVER (II) Loading extension XFree86-VidModeExtension (II) Loading extension XFree86-DGA (II) Loading extension DPMS (II) Loading extension XVideo (II) Loading extension XVideo-MotionCompensation (II) Loading extension X-Resource (II) LoadModule: "dbe" (II) Loading /usr/lib/xorg/modules/extensions/libdbe.so (II) Module dbe: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.0.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension DOUBLE-BUFFER (II) LoadModule: "record" (II) Loading /usr/lib/xorg/modules/extensions/librecord.so (II) Module record: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.13.0 Module class: X.Org Server Extension ABI class: X.Org Server Extension, version 2.0 (II) Loading extension RECORD (II) LoadModule: "dri" (II) Loading /usr/lib/xorg/modules/extensions/libdri.so (II) Module dri: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.0.0 ABI class: X.Org Server Extension, version 2.0 (II) Loading extension XFree86-DRI (II) LoadModule: "dri2" (II) Loading /usr/lib/xorg/modules/extensions/libdri2.so (II) Module dri2: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.1.0 ABI class: X.Org Server Extension, version 2.0 (II) Loading extension DRI2 (II) LoadModule: "fglrx" (II) Loading /usr/lib/xorg/extra-modules/modules/drivers/fglrx_drv.so (II) Module fglrx: vendor="FireGL - ATI Technologies Inc." compiled for 1.7.1, module version = 8.72.11 Module class: X.Org Video Driver (II) Loading sub module "fglrxdrm" (II) LoadModule: "fglrxdrm" (II) Loading /usr/lib/xorg/extra-modules/modules/linux/libfglrxdrm.so (II) Module fglrxdrm: vendor="FireGL - ATI Technologies Inc." compiled for 1.7.1, module version = 8.72.11 (II) ATI Proprietary Linux Driver Version Identifier:8.72.11 (II) ATI Proprietary Linux Driver Release Identifier: 8.723.1 (II) ATI Proprietary Linux Driver Build Date: Apr 8 2010 21:40:29 (II) Primary Device is: PCI 01@00:00:0 (WW) Falling back to old probe method for fglrx (II) Loading PCS database from /etc/ati/amdpcsdb (--) Assigning device section with no busID to primary device (WW) fglrx: No matching Device section for instance (BusID PCI:0@2:0:0) found (--) Chipset Supported AMD Graphics Processor (0x9442) found (WW) fglrx: No matching Device section for instance (BusID PCI:0@1:0:1) found (WW) fglrx: No matching Device section for instance (BusID PCI:0@2:0:1) found (**) ChipID override: 0x954F (**) Chipset Supported AMD Graphics Processor (0x954F) found (II) AMD Video driver is running on a device belonging to a group targeted for this release (II) AMD Video driver is signed (II) fglrx(0): pEnt->device->identifier=0x9428aa0 (II) pEnt->device->identifier=(nil) (II) fglrx(0): === [atiddxPreInit] === begin (II) Loading sub module "vgahw" (II) LoadModule: "vgahw" (II) Loading /usr/lib/xorg/modules/libvgahw.so (II) Module vgahw: vendor="X.Org Foundation" compiled for 1.7.6, module version = 0.1.0 ABI class: X.Org Video Driver, version 6.0 (II) fglrx(0): Creating default Display subsection in Screen section "Default Screen" for depth/fbbpp 24/32 (**) fglrx(0): Depth 24, (--) framebuffer bpp 32 (II) fglrx(0): Pixel depth = 24 bits stored in 4 bytes (32 bpp pixmaps) (==) fglrx(0): Default visual is TrueColor (==) fglrx(0): RGB weight 888 (II) fglrx(0): Using 8 bits per RGB (==) fglrx(0): Buffer Tiling is ON (II) Loading sub module "fglrxdrm" (II) LoadModule: "fglrxdrm" (II) Reloading /usr/lib/xorg/extra-modules/modules/linux/libfglrxdrm.so ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiOpenByBusid: Searching for BusID PCI:1:0:0 ukiOpenDevice: node name is /dev/ati/card0 ukiOpenDevice: open result is 10, (OK) ukiOpenByBusid: ukiOpenMinor returns 10 ukiOpenByBusid: ukiGetBusid reports PCI:2:0:0 ukiOpenDevice: node name is /dev/ati/card1 ukiOpenDevice: open result is 10, (OK) ukiOpenByBusid: ukiOpenMinor returns 10 ukiOpenByBusid: ukiGetBusid reports PCI:1:0:0 ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiOpenByBusid: Searching for BusID PCI:2:0:0 ukiOpenDevice: node name is /dev/ati/card0 ukiOpenDevice: open result is 11, (OK) ukiOpenByBusid: ukiOpenMinor returns 11 ukiOpenByBusid: ukiGetBusid reports PCI:2:0:0 (--) fglrx(0): Chipset: "ATI Radeon HD 4800 Series" (Chipset = 0x9442) (--) fglrx(0): (PciSubVendor = 0x174b, PciSubDevice = 0xe104) (==) fglrx(0): board vendor info: third party graphics adapter - NOT original ATI (--) fglrx(0): Linear framebuffer (phys) at 0xc0000000 (--) fglrx(0): MMIO registers at 0xfe7e0000 (--) fglrx(0): I/O port at 0x0000a000 (==) fglrx(0): ROM-BIOS at 0x000c0000 (II) fglrx(0): AC Adapter is used (II) fglrx(0): Primary V_BIOS segment is: 0xc000 (II) Loading sub module "vbe" (II) LoadModule: "vbe" (II) Loading /usr/lib/xorg/modules/libvbe.so (II) Module vbe: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.1.0 ABI class: X.Org Video Driver, version 6.0 (II) fglrx(0): VESA BIOS detected (II) fglrx(0): VESA VBE Version 3.0 (II) fglrx(0): VESA VBE Total Mem: 16384 kB (II) fglrx(0): VESA VBE OEM: ATI ATOMBIOS (II) fglrx(0): VESA VBE OEM Software Rev: 11.13 (II) fglrx(0): VESA VBE OEM Vendor: (C) 1988-2005, ATI Technologies Inc. (II) fglrx(0): VESA VBE OEM Product: RV770 (II) fglrx(0): VESA VBE OEM Product Rev: 01.00 (II) fglrx(0): ATI Video BIOS revision 9 or later detected (--) fglrx(0): Video RAM: 524288 kByte, Type: GDDR3 (II) fglrx(0): PCIE card detected (--) fglrx(0): Using per-process page tables (PPPT) as GART. (WW) fglrx(0): board is an unknown third party board, chipset is supported (--) fglrx(0): Chipset: "ATI Radeon HD 4300/4500 Series" (Chipset = 0x954f) (--) fglrx(0): (PciSubVendor = 0x1462, PciSubDevice = 0x1618) (==) fglrx(0): board vendor info: third party graphics adapter - NOT original ATI (--) fglrx(0): Linear framebuffer (phys) at 0xd0000000 (--) fglrx(0): MMIO registers at 0xfe8e0000 (--) fglrx(0): I/O port at 0x0000b000 (==) fglrx(0): ROM-BIOS at 0x000c0000 (II) fglrx(0): AC Adapter is used (II) fglrx(0): Invalid ATI BIOS from int10, the adapter is not VGA-enabled (II) fglrx(0): ATI Video BIOS revision 9 or later detected (--) fglrx(0): Video RAM: 524288 kByte, Type: DDR2 (II) fglrx(0): PCIE card detected (--) fglrx(0): Using per-process page tables (PPPT) as GART. (WW) fglrx(0): board is an unknown third party board, chipset is supported (II) fglrx(0): Using adapter: 1:0.0. (II) fglrx(0): [FB] MC range(MCFBBase = 0xf00000000, MCFBSize = 0x20000000) (II) fglrx(0): Interrupt handler installed at IRQ 31. (II) fglrx(0): Using adapter: 2:0.0. (II) fglrx(0): [FB] MC range(MCFBBase = 0xf00000000, MCFBSize = 0x20000000) (II) fglrx(0): RandR 1.2 support is enabled! (II) fglrx(0): RandR 1.2 rotation support is enabled! (==) fglrx(0): Center Mode is disabled (II) Loading sub module "fb" (II) LoadModule: "fb" (II) Loading /usr/lib/xorg/modules/libfb.so (II) Module fb: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.0.0 ABI class: X.Org ANSI C Emulation, version 0.4 (II) Loading sub module "ddc" (II) LoadModule: "ddc" (II) Module "ddc" already built-in (II) fglrx(0): Finished Initialize PPLIB! (II) Loading sub module "ddc" (II) LoadModule: "ddc" (II) Module "ddc" already built-in (II) fglrx(0): Connected Display0: DFP on external TMDS [tmds2] (II) fglrx(0): Display0 EDID data --------------------------- (II) fglrx(0): Manufacturer: DEL Model: a038 Serial#: 810829397 (II) fglrx(0): Year: 2008 Week: 51 (II) fglrx(0): EDID Version: 1.3 (II) fglrx(0): Digital Display Input (II) fglrx(0): Max Image Size [cm]: horiz.: 53 vert.: 30 (II) fglrx(0): Gamma: 2.20 (II) fglrx(0): DPMS capabilities: StandBy Suspend Off (II) fglrx(0): Supported color encodings: RGB 4:4:4 YCrCb 4:4:4 (II) fglrx(0): Default color space is primary color space (II) fglrx(0): First detailed timing is preferred mode (II) fglrx(0): redX: 0.640 redY: 0.330 greenX: 0.300 greenY: 0.600 (II) fglrx(0): blueX: 0.150 blueY: 0.060 whiteX: 0.312 whiteY: 0.329 (II) fglrx(0): Supported established timings: (II) fglrx(0): 720x400@70Hz (II) fglrx(0): 640x480@60Hz (II) fglrx(0): 640x480@75Hz (II) fglrx(0): 800x600@60Hz (II) fglrx(0): 800x600@75Hz (II) fglrx(0): 1024x768@60Hz (II) fglrx(0): 1024x768@75Hz (II) fglrx(0): 1280x1024@75Hz (II) fglrx(0): Manufacturer's mask: 0 (II) fglrx(0): Supported standard timings: (II) fglrx(0): #0: hsize: 1152 vsize 864 refresh: 75 vid: 20337 (II) fglrx(0): #1: hsize: 1280 vsize 1024 refresh: 60 vid: 32897 (II) fglrx(0): #2: hsize: 1920 vsize 1080 refresh: 60 vid: 49361 (II) fglrx(0): Supported detailed timing: (II) fglrx(0): clock: 148.5 MHz Image Size: 531 x 298 mm (II) fglrx(0): h_active: 1920 h_sync: 2008 h_sync_end 2052 h_blank_end 2200 h_border: 0 (II) fglrx(0): v_active: 1080 v_sync: 1084 v_sync_end 1089 v_blanking: 1125 v_border: 0 (II) fglrx(0): Serial No: Y183D8CF0TFU (II) fglrx(0): Monitor name: DELL S2409W (II) fglrx(0): Ranges: V min: 50 V max: 76 Hz, H min: 30 H max: 83 kHz, PixClock max 170 MHz (II) fglrx(0): EDID (in hex): (II) fglrx(0): 00ffffffffffff0010ac38a055465430 (II) fglrx(0): 3312010380351e78eeee91a3544c9926 (II) fglrx(0): 0f5054a54b00714f8180d1c001010101 (II) fglrx(0): 010101010101023a801871382d40582c (II) fglrx(0): 4500132a2100001e000000ff00593138 (II) fglrx(0): 3344384346305446550a000000fc0044 (II) fglrx(0): 454c4c205332343039570a20000000fd (II) fglrx(0): 00324c1e5311000a2020202020200059 (II) fglrx(0): End of Display0 EDID data -------------------- (II) fglrx(0): Output DFP2 has no monitor section (II) fglrx(0): Output DFP_EXTTMDS has no monitor section (II) fglrx(0): Output CRT1 has no monitor section (II) fglrx(0): Output CRT2 has no monitor section (II) fglrx(0): Output DFP2 disconnected (II) fglrx(0): Output DFP_EXTTMDS connected (II) fglrx(0): Output CRT1 disconnected (II) fglrx(0): Output CRT2 disconnected (II) fglrx(0): Using exact sizes for initial modes (II) fglrx(0): Output DFP_EXTTMDS using initial mode 1920x1080 (II) fglrx(0): DPI set to (96, 96) (II) fglrx(0): Adapter ATI Radeon HD 4800 Series has 2 configurable heads and 1 displays connected. (==) fglrx(0): QBS disabled (==) fglrx(0): PseudoColor visuals disabled (II) Loading sub module "ramdac" (II) LoadModule: "ramdac" (II) Module "ramdac" already built-in (==) fglrx(0): NoAccel = NO (==) fglrx(0): NoDRI = NO (==) fglrx(0): Capabilities: 0x00000000 (==) fglrx(0): CapabilitiesEx: 0x00000000 (==) fglrx(0): OpenGL ClientDriverName: "fglrx_dri.so" (==) fglrx(0): UseFastTLS=0 (==) fglrx(0): BlockSignalsOnLock=1 (--) Depth 24 pixmap format is 32 bpp (II) Loading extension ATIFGLRXDRI (II) fglrx(0): doing swlDriScreenInit (II) fglrx(0): swlDriScreenInit for fglrx driver ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiOpenByBusid: Searching for BusID PCI:1:0:0 ukiOpenDevice: node name is /dev/ati/card0 ukiOpenDevice: open result is 17, (OK) ukiOpenByBusid: ukiOpenMinor returns 17 ukiOpenByBusid: ukiGetBusid reports PCI:2:0:0 ukiOpenDevice: node name is /dev/ati/card1 ukiOpenDevice: open result is 17, (OK) ukiOpenByBusid: ukiOpenMinor returns 17 ukiOpenByBusid: ukiGetBusid reports PCI:1:0:0 (II) fglrx(0): [uki] DRM interface version 1.0 (II) fglrx(0): [uki] created "fglrx" driver at busid "PCI:1:0:0" (II) fglrx(0): [uki] added 8192 byte SAREA at 0x2000 (II) fglrx(0): [uki] mapped SAREA 0x2000 to 0xb6996000 (II) fglrx(0): [uki] framebuffer handle = 0x3000 (II) fglrx(0): [uki] added 1 reserved context for kernel (II) fglrx(0): swlDriScreenInit done (II) fglrx(0): Kernel Module Version Information: (II) fglrx(0): Name: fglrx (II) fglrx(0): Version: 8.72.11 (II) fglrx(0): Date: Apr 8 2010 (II) fglrx(0): Desc: ATI FireGL DRM kernel module (II) fglrx(0): Kernel Module version matches driver. (II) fglrx(0): Kernel Module Build Time Information: (II) fglrx(0): Build-Kernel UTS_RELEASE: 2.6.32-22-generic-pae (II) fglrx(0): Build-Kernel MODVERSIONS: yes (II) fglrx(0): Build-Kernel __SMP__: yes (II) fglrx(0): Build-Kernel PAGE_SIZE: 0x1000 (II) fglrx(0): [uki] register handle = 0x00004000 (II) fglrx(0): DRI initialization successfull! (II) fglrx(0): FBADPhys: 0xf00000000 FBMappedSize: 0x01068000 (II) fglrx(0): FBMM initialized for area (0,0)-(1920,2240) (II) fglrx(0): FBMM auto alloc for area (0,0)-(1920,1920) (front color buffer - assumption) (II) fglrx(0): Largest offscreen area available: 1920 x 320 (==) fglrx(0): Backing store disabled (II) Loading extension FGLRXEXTENSION (==) fglrx(0): DPMS enabled (II) fglrx(0): Initialized in-driver Xinerama extension (**) fglrx(0): Textured Video is enabled. (II) LoadModule: "glesx" (II) Loading /usr/lib/xorg/extra-modules/modules/glesx.so (II) Module glesx: vendor="X.Org Foundation" compiled for 1.7.1, module version = 1.0.0 (II) Loading extension GLESX (II) Loading sub module "xaa" (II) LoadModule: "xaa" (II) Loading /usr/lib/xorg/modules/libxaa.so (II) Module xaa: vendor="X.Org Foundation" compiled for 1.7.6, module version = 1.2.1 ABI class: X.Org Video Driver, version 6.0 (II) fglrx(0): GLESX enableFlags = 94 (II) fglrx(0): Using XFree86 Acceleration Architecture (XAA) Screen to screen bit blits Solid filled rectangles Solid Horizontal and Vertical Lines Driver provided ScreenToScreenBitBlt replacement Driver provided FillSolidRects replacement (II) fglrx(0): GLESX is enabled (II) LoadModule: "amdxmm" (II) Loading /usr/lib/xorg/extra-modules/modules/amdxmm.so (II) Module amdxmm: vendor="X.Org Foundation" compiled for 1.7.1, module version = 1.0.0 (II) Loading extension AMDXVOPL (II) fglrx(0): UVD2 feature is available (II) fglrx(0): Enable composite support successfully (II) fglrx(0): X context handle = 0x1 (II) fglrx(0): [DRI] installation complete (==) fglrx(0): Silken mouse enabled (==) fglrx(0): Using HW cursor of display infrastructure! (II) fglrx(0): Disabling in-server RandR and enabling in-driver RandR 1.2. (--) RandR disabled (II) Found 2 VGA devices: arbiter wrapping enabled (II) Initializing built-in extension Generic Event Extension (II) Initializing built-in extension SHAPE (II) Initializing built-in extension MIT-SHM (II) Initializing built-in extension XInputExtension (II) Initializing built-in extension XTEST (II) Initializing built-in extension BIG-REQUESTS (II) Initializing built-in extension SYNC (II) Initializing built-in extension XKEYBOARD (II) Initializing built-in extension XC-MISC (II) Initializing built-in extension SECURITY (II) Initializing built-in extension XINERAMA (II) Initializing built-in extension XFIXES (II) Initializing built-in extension RENDER (II) Initializing built-in extension RANDR (II) Initializing built-in extension COMPOSITE (II) Initializing built-in extension DAMAGE ukiDynamicMajor: found major device number 251 ukiDynamicMajor: found major device number 251 ukiOpenByBusid: Searching for BusID PCI:1:0:0 ukiOpenDevice: node name is /dev/ati/card0 ukiOpenDevice: open result is 18, (OK) ukiOpenByBusid: ukiOpenMinor returns 18 ukiOpenByBusid: ukiGetBusid reports PCI:2:0:0 ukiOpenDevice: node name is /dev/ati/card1 ukiOpenDevice: open result is 18, (OK) ukiOpenByBusid: ukiOpenMinor returns 18 ukiOpenByBusid: ukiGetBusid reports PCI:1:0:0 (II) AIGLX: Loaded and initialized /usr/lib/dri/fglrx_dri.so (II) GLX: Initialized DRI GL provider for screen 0 (II) fglrx(0): Enable the clock gating! (II) fglrx(0): Setting screen physical size to 507 x 285 (II) XKB: reuse xkmfile /var/lib/xkb/server-B20D7FC79C7F597315E3E501AEF10E0D866E8E92.xkm (II) config/udev: Adding input device Power Button (/dev/input/event1) (**) Power Button: Applying InputClass "evdev keyboard catchall" (II) LoadModule: "evdev" (II) Loading /usr/lib/xorg/modules/input/evdev_drv.so (II) Module evdev: vendor="X.Org Foundation" compiled for 1.7.6, module version = 2.3.2 Module class: X.Org XInput Driver ABI class: X.Org XInput driver, version 7.0 (**) Power Button: always reports core events (**) Power Button: Device: "/dev/input/event1" (II) Power Button: Found keys (II) Power Button: Configuring as keyboard (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device Power Button (/dev/input/event0) (**) Power Button: Applying InputClass "evdev keyboard catchall" (**) Power Button: always reports core events (**) Power Button: Device: "/dev/input/event0" (II) Power Button: Found keys (II) Power Button: Configuring as keyboard (II) XINPUT: Adding extended input device "Power Button" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device Logitech USB-PS/2 Optical Mouse (/dev/input/event3) (**) Logitech USB-PS/2 Optical Mouse: Applying InputClass "evdev pointer catchall" (**) Logitech USB-PS/2 Optical Mouse: always reports core events (**) Logitech USB-PS/2 Optical Mouse: Device: "/dev/input/event3" (II) Logitech USB-PS/2 Optical Mouse: Found 12 mouse buttons (II) Logitech USB-PS/2 Optical Mouse: Found scroll wheel(s) (II) Logitech USB-PS/2 Optical Mouse: Found relative axes (II) Logitech USB-PS/2 Optical Mouse: Found x and y relative axes (II) Logitech USB-PS/2 Optical Mouse: Configuring as mouse (**) Logitech USB-PS/2 Optical Mouse: YAxisMapping: buttons 4 and 5 (**) Logitech USB-PS/2 Optical Mouse: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 (II) XINPUT: Adding extended input device "Logitech USB-PS/2 Optical Mouse" (type: MOUSE) (II) Logitech USB-PS/2 Optical Mouse: initialized for relative axes. (II) config/udev: Adding input device Logitech USB-PS/2 Optical Mouse (/dev/input/mouse1) (II) No input driver/identifier specified (ignoring) (II) config/udev: Adding input device Logitech USB Multimedia Keyboard (/dev/input/event4) (**) Logitech USB Multimedia Keyboard: Applying InputClass "evdev keyboard catchall" (**) Logitech USB Multimedia Keyboard: always reports core events (**) Logitech USB Multimedia Keyboard: Device: "/dev/input/event4" (II) Logitech USB Multimedia Keyboard: Found keys (II) Logitech USB Multimedia Keyboard: Configuring as keyboard (II) XINPUT: Adding extended input device "Logitech USB Multimedia Keyboard" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device Logitech USB Multimedia Keyboard (/dev/input/event5) (**) Logitech USB Multimedia Keyboard: Applying InputClass "evdev keyboard catchall" (**) Logitech USB Multimedia Keyboard: always reports core events (**) Logitech USB Multimedia Keyboard: Device: "/dev/input/event5" (II) Logitech USB Multimedia Keyboard: Found keys (II) Logitech USB Multimedia Keyboard: Configuring as keyboard (II) XINPUT: Adding extended input device "Logitech USB Multimedia Keyboard" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device KEYBOARD (/dev/input/event6) (**) KEYBOARD: Applying InputClass "evdev keyboard catchall" (**) KEYBOARD: always reports core events (**) KEYBOARD: Device: "/dev/input/event6" (II) KEYBOARD: Found keys (II) KEYBOARD: Configuring as keyboard (II) XINPUT: Adding extended input device "KEYBOARD" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (II) config/udev: Adding input device KEYBOARD (/dev/input/event7) (**) KEYBOARD: Applying InputClass "evdev keyboard catchall" (**) KEYBOARD: always reports core events (**) KEYBOARD: Device: "/dev/input/event7" (II) KEYBOARD: Found 14 mouse buttons (II) KEYBOARD: Found scroll wheel(s) (II) KEYBOARD: Found relative axes (II) KEYBOARD: Found keys (II) KEYBOARD: Configuring as mouse (II) KEYBOARD: Configuring as keyboard (**) KEYBOARD: YAxisMapping: buttons 4 and 5 (**) KEYBOARD: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 (II) XINPUT: Adding extended input device "KEYBOARD" (type: KEYBOARD) (**) Option "xkb_rules" "evdev" (**) Option "xkb_model" "pc105" (**) Option "xkb_layout" "us" (EE) KEYBOARD: failed to initialize for relative axes. (II) config/udev: Adding input device KEYBOARD (/dev/input/mouse2) (II) No input driver/identifier specified (ignoring) (II) config/udev: Adding input device Macintosh mouse button emulation (/dev/input/event2) (**) Macintosh mouse button emulation: Applying InputClass "evdev pointer catchall" (**) Macintosh mouse button emulation: always reports core events (**) Macintosh mouse button emulation: Device: "/dev/input/event2" (II) Macintosh mouse button emulation: Found 3 mouse buttons (II) Macintosh mouse button emulation: Found relative axes (II) Macintosh mouse button emulation: Found x and y relative axes (II) Macintosh mouse button emulation: Configuring as mouse (**) Macintosh mouse button emulation: YAxisMapping: buttons 4 and 5 (**) Macintosh mouse button emulation: EmulateWheelButton: 4, EmulateWheelInertia: 10, EmulateWheelTimeout: 200 (II) XINPUT: Adding extended input device "Macintosh mouse button emulation" (type: MOUSE) (II) Macintosh mouse button emulation: initialized for relative axes. (II) config/udev: Adding input device Macintosh mouse button emulation (/dev/input/mouse0) (II) No input driver/identifier specified (ignoring) (II) fglrx(0): Restoring Recent Mode via PCS is not supported in RANDR 1.2 capable environments

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• Increase samba space on open suse 12.1

  - by Kapil Sharma

  I know linux basics but not an expert. IT guy left the job here and there is some time before new hire. So sorry if question is very basic. We have local testing server based on Open SUSE 12.1, which also act as shared drive between dev/mgmt team here and using Samba for that. Now we are running out of space on samba, even though server's 2*1TB harddisk is nearly 90% free. My question is, what is limiting Samba and how can I increase its limit? We need around at least 500 GB as shared drive but currently its just 25 GB. I don't need step by step answer, just a link to any helpful article would be sufficient. Probably I'm putting wrong keywords in google so not getting any helpful link. EDIT: Output of commands in the first comment. All commands were run as root user df -h (getting error with df -ht) Filesystem Size Used Avail Use% Mounted on rootfs 30G 5.1G 23G 19% / devtmpfs 2.0G 36K 2.0G 1% /dev tmpfs 2.0G 1.1M 2.0G 1% /dev/shm tmpfs 2.0G 676K 2.0G 1% /run /dev/sda2 30G 5.1G 23G 19% / tmpfs 2.0G 0 2.0G 0% /sys/fs/cgroup tmpfs 2.0G 676K 2.0G 1% /var/run tmpfs 2.0G 0 2.0G 0% /media tmpfs 2.0G 676K 2.0G 1% /var/lock /dev/sda3 36G 31G 3.3G 91% /home fdisk -l /dev/[hmsv]d* Disk /dev/sda: 80.0 GB, 80026361856 bytes 255 heads, 63 sectors/track, 9729 cylinders, total 156301488 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x2d4a2d49 Device Boot Start End Blocks Id System /dev/sda1 2048 16771071 8384512 82 Linux swap / Solaris /dev/sda2 * 16771072 79681535 31455232 83 Linux /dev/sda3 79681536 156301311 38309888 83 Linux Disk /dev/sda1: 8585 MB, 8585740288 bytes 255 heads, 63 sectors/track, 1043 cylinders, total 16769024 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/sda1 doesn't contain a valid partition table Disk /dev/sda2: 32.2 GB, 32210157568 bytes 255 heads, 63 sectors/track, 3915 cylinders, total 62910464 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Device Boot Start End Blocks Id System Disk /dev/sda3: 39.2 GB, 39229325312 bytes 255 heads, 63 sectors/track, 4769 cylinders, total 76619776 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/sda3 doesn't contain a valid partition table vgs No volume groups found lvs No volume groups found output of vi /etc/samba/smb.conf # smb.conf is the main Samba configuration file. You find a full commented # version at /usr/share/doc/packages/samba/examples/smb.conf.SUSE if the # samba-doc package is installed. # Date: 2011-11-02 [global] workgroup = WORKGROUP passdb backend = tdbsam printing = cups printcap name = cups printcap cache time = 750 cups options = raw map to guest = Bad User include = /etc/samba/dhcp.conf logon path = \\%L\profiles\.msprofile logon home = \\%L\%U\.9xprofile logon drive = P: usershare allow guests = Yes [homes] comment = Home Directories valid users = %S, %D%w%S browseable = No read only = No inherit acls = Yes [profiles] comment = Network Profiles Service path = %H read only = No store dos attributes = Yes create mask = 0600 directory mask = 0700 [users] comment = All users path = /home read only = No inherit acls = Yes veto files = /aquota.user/groups/shares/ [groups] comment = All groups path = /home/groups read only = No inherit acls = Yes [printers] comment = All Printers path = /var/tmp printable = Yes create mask = 0600 browseable = No [print$] comment = Printer Drivers path = /var/lib/samba/drivers write list = @ntadmin root force group = ntadmin create mask = 0664 directory mask = 0775 [allusers] comment = All Users path = /home/shares/allusers valid users = @users force group = users create mask = 0660 directory mask = 0771 writable = yes

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• Setup access to SAS RAID drives with NTFS partitions on CentOS Machine

  - by Quanano

  We have a Dell Poweredge 2900 system with Adaptec 39320A SCSI CONTROLLER CARD and 4 SAS hard drives attached, with NTFS partitions on them. We installed CentOS on the other raid array with a different controller and it is working fine. We are now trying to access the drives shown above and they are not being shown in /dev as sdb, etc. sda is the drive that we installed centos on and it has sda1, sda2, sda3, etc. The CDROM has been picked up as well. If I scan for scsi devices then the perc and adaptec controllers are both found. sg0 is the CDROM and sg2 is the centos installed, however I think sg1 is the other drive but I cannot see anyway to mount the partitions, as only the drive is listed in /dev. Thanks. EXTRA INFO fdisk -l Disk /dev/sda: 72.7 GB, 72746008576 bytes 255 heads, 63 sectors/track, 8844 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x11e3119f Device Boot Start End Blocks Id System /dev/sda1 * 1 64 512000 83 Linux Partition 1 does not end on cylinder boundary. /dev/sda2 64 8845 70528000 8e Linux LVM Disk /dev/mapper/vg_lal2server-lv_root: 34.4 GB, 34431041536 bytes 255 heads, 63 sectors/track, 4186 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/vg_lal2server-lv_root doesn't contain a valid partition table Disk /dev/mapper/vg_lal2server-lv_swap: 21.1 GB, 21139292160 bytes 255 heads, 63 sectors/track, 2570 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/vg_lal2server-lv_swap doesn't contain a valid partition table Disk /dev/mapper/vg_lal2server-lv_home: 16.6 GB, 16647192576 bytes 255 heads, 63 sectors/track, 2023 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00000000 Disk /dev/mapper/vg_lal2server-lv_home doesn't contain a valid partition table These are all from the install hdd not the additional hard drives modprobe a320raid FATAL: Module a320raid not found. lsscsi -v [0:0:0:0] cd/dvd TSSTcorp CDRWDVD TS-H492C DE02 /dev/sr0 dir: /sys/bus/scsi/devices/0:0:0:0 [/sys/devices/pci0000:00/0000:00:1f.1/host0/target0:0:0/0:0:0:0] [4:0:10:0] enclosu DP BACKPLANE 1.05 - dir: /sys/bus/scsi/devices/4:0:10:0 [/sys/devices/pci0000:00/0000:00:05.0/0000:01:00.0/0000:02:0e.0/host4/target4:0:10/4:0:10:0] [4:2:0:0] disk DELL PERC 5/i 1.03 /dev/sda dir: /sys/bus/scsi/devices/4:2:0:0 [/sys/devices/pci0000:00/0000:00:05.0/0000:01:00.0/0000:02:0e.0/host4/target4:2:0/4:2:0:0] . lsmod Module Size Used by fuse 66285 0 des_generic 16604 0 ecb 2209 0 md4 3461 0 nls_utf8 1455 0 cifs 278370 0 autofs4 26888 4 ipt_REJECT 2383 0 ip6t_REJECT 4628 2 nf_conntrack_ipv6 8748 2 nf_defrag_ipv6 12182 1 nf_conntrack_ipv6 xt_state 1492 2 nf_conntrack 79453 2 nf_conntrack_ipv6,xt_state ip6table_filter 2889 1 ip6_tables 19458 1 ip6table_filter ipv6 322029 31 ip6t_REJECT,nf_conntrack_ipv6,nf_defrag_ipv6 bnx2 79618 0 ses 6859 0 enclosure 8395 1 ses dcdbas 9219 0 serio_raw 4818 0 sg 30124 0 iTCO_wdt 13662 0 iTCO_vendor_support 3088 1 iTCO_wdt i5000_edac 8867 0 edac_core 46773 3 i5000_edac i5k_amb 5105 0 shpchp 33482 0 ext4 364410 3 mbcache 8144 1 ext4 jbd2 88738 1 ext4 sd_mod 39488 3 crc_t10dif 1541 1 sd_mod sr_mod 16228 0 cdrom 39771 1 sr_mod megaraid_sas 77090 2 aic79xx 129492 0 scsi_transport_spi 26151 1 aic79xx pata_acpi 3701 0 ata_generic 3837 0 ata_piix 22846 0 radeon 1023359 1 ttm 70328 1 radeon drm_kms_helper 33236 1 radeon drm 230675 3 radeon,ttm,drm_kms_helper i2c_algo_bit 5762 1 radeon i2c_core 31276 4 radeon,drm_kms_helper,drm,i2c_algo_bit dm_mirror 14101 0 dm_region_hash 12170 1 dm_mirror dm_log 10122 2 dm_mirror,dm_region_hash dm_mod 81500 11 dm_mirror,dm_log

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• Adding Core Data to existing iPhone project

  - by swalkner

  I'd like to add core data to an existing iPhone project, but I still get a lot of compile errors: NSManagedObjectContext undeclared Expected specifier-qualifier-list before 'NSManagedObjectModel' ... I already added the Core Data Framework to the target (right click on my project under "Targets", "Add" - "Existing Frameworks", "CoreData.framework"). My header-file: NSManagedObjectModel *managedObjectModel; NSManagedObjectContext *managedObjectContext; NSPersistentStoreCoordinator *persistentStoreCoordinator; [...] @property (nonatomic, retain, readonly) NSManagedObjectModel *managedObjectModel; @property (nonatomic, retain, readonly) NSManagedObjectContext *managedObjectContext; @property (nonatomic, retain, readonly) NSPersistentStoreCoordinator *persistentStoreCoordinator; What am I missing? Starting a new project is not an option... Thanks a lot! edit sorry, I do have those implementations... but it seems like the Library is missing... the implementation methods are full with compile error like "managedObjectContext undeclared", "NSPersistentStoreCoordinator undeclared", but also with "Expected ')' before NSManagedObjectContext" (although it seems like the parenthesis are correct)... #pragma mark - #pragma mark Core Data stack /** Returns the managed object context for the application. If the context doesn't already exist, it is created and bound to the persistent store coordinator for the application. */ - (NSManagedObjectContext *) managedObjectContext { if (managedObjectContext != nil) { return managedObjectContext; } NSPersistentStoreCoordinator *coordinator = [self persistentStoreCoordinator]; if (coordinator != nil) { managedObjectContext = [[NSManagedObjectContext alloc] init]; [managedObjectContext setPersistentStoreCoordinator: coordinator]; } return managedObjectContext; } /** Returns the managed object model for the application. If the model doesn't already exist, it is created by merging all of the models found in application bundle. */ - (NSManagedObjectModel *)managedObjectModel { if (managedObjectModel != nil) { return managedObjectModel; } managedObjectModel = [[NSManagedObjectModel mergedModelFromBundles:nil] retain]; return managedObjectModel; } /** Returns the persistent store coordinator for the application. If the coordinator doesn't already exist, it is created and the application's store added to it. */ - (NSPersistentStoreCoordinator *)persistentStoreCoordinator { if (persistentStoreCoordinator != nil) { return persistentStoreCoordinator; } NSURL *storeUrl = [NSURL fileURLWithPath: [[self applicationDocumentsDirectory] stringByAppendingPathComponent: @"Core_Data.sqlite"]]; NSError *error = nil; persistentStoreCoordinator = [[NSPersistentStoreCoordinator alloc] initWithManagedObjectModel:[self managedObjectModel]]; if (![persistentStoreCoordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:storeUrl options:nil error:&error]) { /* Replace this implementation with code to handle the error appropriately. abort() causes the application to generate a crash log and terminate. You should not use this function in a shipping application, although it may be useful during development. If it is not possible to recover from the error, display an alert panel that instructs the user to quit the application by pressing the Home button. Typical reasons for an error here include: * The persistent store is not accessible * The schema for the persistent store is incompatible with current managed object model Check the error message to determine what the actual problem was. */ NSLog(@"Unresolved error %@, %@", error, [error userInfo]); abort(); } return persistentStoreCoordinator; }

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• Re: Help with Boost Grammar

  - by Decmac04

  I have redesigned and extended the grammar I asked about earlier as shown below: // BIFAnalyser.cpp : Defines the entry point for the console application. // // /*============================================================================= Copyright (c) Temitope Jos Onunkun 2010 http://www.dcs.kcl.ac.uk/pg/onun/ Use, modification and distribution is subject to the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) =============================================================================*/ //////////////////////////////////////////////////////////////////////////// // // // B Machine parser using the Boost "Grammar" and "Semantic Actions". // // // //////////////////////////////////////////////////////////////////////////// include include include include include include //////////////////////////////////////////////////////////////////////////// using namespace std; using namespace boost::spirit; //////////////////////////////////////////////////////////////////////////// // // Semantic Actions // //////////////////////////////////////////////////////////////////////////// // // namespace { //semantic action function on individual lexeme void do_noint(char const* start, char const* end) { string str(start, end); if (str != "NAT1") cout << "PUSH(" << str << ')' << endl; } //semantic action function on addition of lexemes void do_add(char const*, char const*) { cout << "ADD" << endl; // for(vector::iterator vi = strVect.begin(); vi < strVect.end(); ++vi) // cout << *vi << " "; } //semantic action function on subtraction of lexemes void do_subt(char const*, char const*) { cout << "SUBTRACT" << endl; } //semantic action function on multiplication of lexemes void do_mult(char const*, char const*) { cout << "\nMULTIPLY" << endl; } //semantic action function on division of lexemes void do_div(char const*, char const*) { cout << "\nDIVIDE" << endl; } // // vector flowTable; //semantic action function on simple substitution void do_sSubst(char const* start, char const* end) { string str(start, end); //use boost tokenizer to break down tokens typedef boost::tokenizer Tokenizer; boost::char_separator sep(" -+/*:=()",0,boost::drop_empty_tokens); // char separator definition Tokenizer tok(str, sep); Tokenizer::iterator tok_iter = tok.begin(); pair dependency; //create a pair object for dependencies //create a vector object to store all tokens vector dx; // int counter = 0; // tracks token position for(tok.begin(); tok_iter != tok.end(); ++tok_iter) //save all tokens in vector { dx.push_back(*tok_iter ); } counter = dx.size(); // vector d_hat; //stores set of dependency pairs string dep; //pairs variables as string object // dependency.first = *tok.begin(); vector FV; for(int unsigned i=1; i < dx.size(); i++) { // if(!atoi(dx.at(i).c_str()) && (dx.at(i) !=" ")) { dependency.second = dx.at(i); dep = dependency.first + "|-" + dependency.second + " "; d_hat.push_back(dep); vector<string> row; row.push_back(dependency.first); //push x_hat into first column of each row for(unsigned int j=0; j<2; j++) { row.push_back(dependency.second);//push an element (column) into the row } flowTable.push_back(row); //Add the row to the main vector } } //displays internal representation of information flow table cout << "\n****************\nDependency Table\n****************\n"; cout << "X_Hat\tDx\tG_Hat\n"; cout << "-----------------------------\n"; for(unsigned int i=0; i < flowTable.size(); i++) { for(unsigned int j=0; j<2; j++) { cout << flowTable[i][j] << "\t "; } if (*tok.begin() != "WHILE" ) //if there are no global flows, cout << "\t{}"; //display empty set cout << "\n"; } cout << "***************\n\n"; for(int unsigned j=0; j < FV.size(); j++) { if(FV.at(j) != dependency.second) dep = dependency.first + "|-" + dependency.second + " "; d_hat.push_back(dep); } cout << "PUSH(" << str << ')' << endl; cout << "\n*******\nDependency pairs\n*******\n"; for(int unsigned i=0; i < d_hat.size(); i++) cout << d_hat.at(i) << "\n...\n"; cout << "\nSIMPLE SUBSTITUTION\n\n"; } //semantic action function on multiple substitution void do_mSubst(char const* start, char const* end) { string str(start, end); cout << "PUSH(" << str << ')' << endl; //cout << "\nMULTIPLE SUBSTITUTION\n\n"; } //semantic action function on unbounded choice substitution void do_mChoice(char const* start, char const* end) { string str(start, end); cout << "PUSH(" << str << ')' << endl; cout << "\nUNBOUNDED CHOICE SUBSTITUTION\n\n"; } void do_logicExpr(char const* start, char const* end) { string str(start, end); //use boost tokenizer to break down tokens typedef boost::tokenizer Tokenizer; boost::char_separator sep(" -+/*=:()<",0,boost::drop_empty_tokens); // char separator definition Tokenizer tok(str, sep); Tokenizer::iterator tok_iter = tok.begin(); //pair dependency; //create a pair object for dependencies //create a vector object to store all tokens vector dx; for(tok.begin(); tok_iter != tok.end(); ++tok_iter) //save all tokens in vector { dx.push_back(*tok_iter ); } for(unsigned int i=0; i cout << "PUSH(" << str << ')' << endl; cout << "\nPREDICATE\n\n"; } void do_predicate(char const* start, char const* end) { string str(start, end); cout << "PUSH(" << str << ')' << endl; cout << "\nMULTIPLE PREDICATE\n\n"; } void do_ifSelectPre(char const* start, char const* end) { string str(start, end); //if cout << "PUSH(" << str << ')' << endl; cout << "\nPROTECTED SUBSTITUTION\n\n"; } //semantic action function on machine substitution void do_machSubst(char const* start, char const* end) { string str(start, end); cout << "PUSH(" << str << ')' << endl; cout << "\nMACHINE SUBSTITUTION\n\n"; } } //////////////////////////////////////////////////////////////////////////// // // Machine Substitution Grammar // //////////////////////////////////////////////////////////////////////////// // Simple substitution grammar parser with integer values removed struct Substitution : public grammar { template struct definition { definition(Substitution const& ) { machine_subst = ( (simple_subst) | (multi_subst) | (if_select_pre_subst) | (unbounded_choice) )[&do_machSubst] ; unbounded_choice = str_p("ANY") ide_list str_p("WHERE") predicate str_p("THEN") machine_subst str_p("END") ; if_select_pre_subst = ( ( str_p("IF") predicate str_p("THEN") machine_subst *( str_p("ELSIF") predicate machine_subst ) !( str_p("ELSE") machine_subst) str_p("END") ) | ( str_p("SELECT") predicate str_p("THEN") machine_subst *( str_p("WHEN") predicate machine_subst ) !( str_p("ELSE") machine_subst) str_p("END")) | ( str_p("PRE") predicate str_p("THEN") machine_subst str_p("END") ) )[&do_ifSelectPre] ; multi_subst = ( (machine_subst) *( ( str_p("||") (machine_subst) ) | ( str_p("[]") (machine_subst) ) ) ) [&do_mSubst] ; simple_subst = (identifier str_p(":=") arith_expr) [&do_sSubst] ; expression = predicate | arith_expr ; predicate = ( (logic_expr) *( ( ch_p('&') (logic_expr) ) | ( str_p("OR") (logic_expr) ) ) )[&do_predicate] ; logic_expr = ( identifier (str_p("<") arith_expr) | (str_p("<") arith_expr) | (str_p("/:") arith_expr) | (str_p("<:") arith_expr) | (str_p("/<:") arith_expr) | (str_p("<<:") arith_expr) | (str_p("/<<:") arith_expr) | (str_p("<=") arith_expr) | (str_p("=") arith_expr) | (str_p("=") arith_expr) | (str_p("=") arith_expr) ) [&do_logicExpr] ; arith_expr = term *( ('+' term)[&do_add] | ('-' term)[&do_subt] ) ; term = factor ( ('' factor)[&do_mult] | ('/' factor)[&do_div] ) ; factor = lexeme_d[( identifier | +digit_p)[&do_noint]] | '(' expression ')' | ('+' factor) ; ide_list = identifier *( ch_p(',') identifier ) ; identifier = alpha_p +( alnum_p | ch_p('_') ) ; } rule machine_subst, unbounded_choice, if_select_pre_subst, multi_subst, simple_subst, expression, predicate, logic_expr, arith_expr, term, factor, ide_list, identifier; rule<ScannerT> const& start() const { return predicate; //return multi_subst; //return machine_subst; } }; }; //////////////////////////////////////////////////////////////////////////// // // Main program // //////////////////////////////////////////////////////////////////////////// int main() { cout << "*********************************\n\n"; cout << "\t\t...Machine Parser...\n\n"; cout << "*********************************\n\n"; // cout << "Type an expression...or [q or Q] to quit\n\n"; string str; int machineCount = 0; char strFilename[256]; //file name store as a string object do { cout << "Please enter a filename...or [q or Q] to quit:\n\n "; //prompt for file name to be input //char strFilename[256]; //file name store as a string object cin strFilename; if(*strFilename == 'q' || *strFilename == 'Q') //termination condition return 0; ifstream inFile(strFilename); // opens file object for reading //output file for truncated machine (operations only) if (inFile.fail()) cerr << "\nUnable to open file for reading.\n" << endl; inFile.unsetf(std::ios::skipws); Substitution elementary_subst; // Simple substitution parser object string next; while (inFile str) { getline(inFile, next); str += next; if (str.empty() || str[0] == 'q' || str[0] == 'Q') break; parse_info< info = parse(str.c_str(), elementary_subst !end_p, space_p); if (info.full) { cout << "\n-------------------------\n"; cout << "Parsing succeeded\n"; cout << "\n-------------------------\n"; } else { cout << "\n-------------------------\n"; cout << "Parsing failed\n"; cout << "stopped at: " << info.stop << "\"\n"; cout << "\n-------------------------\n"; } } } while ( (*strFilename != 'q' || *strFilename !='Q')); return 0; } However, I am experiencing the following unexpected behaviours on testing: The text files I used are: f1.txt, ... containing ...: debt:=(LoanRequest+outstandingLoan1)*20 . f2.txt, ... containing ...: debt:=(LoanRequest+outstandingLoan1)*20 || newDebt := loanammount-paidammount || price := purchasePrice + overhead + bb . f3.txt, ... containing ...: yy < (xx+7+ww) . f4.txt, ... containing ...: yy < (xx+7+ww) & yy : NAT . When I use multi_subst as start rule both files (f1 and f2) are parsed correctly; When I use machine_subst as start rule file f1 parse correctly, while file f2 fails, producing the error: “Parsing failed stopped at: || newDebt := loanammount-paidammount || price := purchasePrice + overhead + bb” When I use predicate as start symbol, file f3 parse correctly, but file f4 yields the error: “ “Parsing failed stopped at: & yy : NAT” Can anyone help with the grammar, please? It appears there are problems with the grammar that I have so far been unable to spot.

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• ASP.NET MVC 3: Implicit and Explicit code nuggets with Razor

  - by ScottGu

  This is another in a series of posts I’m doing that cover some of the new ASP.NET MVC 3 features: New @model keyword in Razor (Oct 19th) Layouts with Razor (Oct 22nd) Server-Side Comments with Razor (Nov 12th) Razor’s @: and <text> syntax (Dec 15th) Implicit and Explicit code nuggets with Razor (today) In today’s post I’m going to discuss how Razor enables you to both implicitly and explicitly define code nuggets within your view templates, and walkthrough some code examples of each of them.  Fluid Coding with Razor ASP.NET MVC 3 ships with a new view-engine option called “Razor” (in addition to the existing .aspx view engine).  You can learn more about Razor, why we are introducing it, and the syntax it supports from my Introducing Razor blog post. Razor minimizes the number of characters and keystrokes required when writing a view template, and enables a fast, fluid coding workflow. Unlike most template syntaxes, you do not need to interrupt your coding to explicitly denote the start and end of server blocks within your HTML. The Razor parser is smart enough to infer this from your code. This enables a compact and expressive syntax which is clean, fast and fun to type. For example, the Razor snippet below can be used to iterate a collection of products and output a <ul> list of product names that link to their corresponding product pages: When run, the above code generates output like below: Notice above how we were able to embed two code nuggets within the content of the foreach loop.  One of them outputs the name of the Product, and the other embeds the ProductID within a hyperlink.  Notice that we didn’t have to explicitly wrap these code-nuggets - Razor was instead smart enough to implicitly identify where the code began and ended in both of these situations.  How Razor Enables Implicit Code Nuggets Razor does not define its own language.  Instead, the code you write within Razor code nuggets is standard C# or VB.  This allows you to re-use your existing language skills, and avoid having to learn a customized language grammar. The Razor parser has smarts built into it so that whenever possible you do not need to explicitly mark the end of C#/VB code nuggets you write.  This makes coding more fluid and productive, and enables a nice, clean, concise template syntax.  Below are a few scenarios that Razor supports where you can avoid having to explicitly mark the beginning/end of a code nugget, and instead have Razor implicitly identify the code nugget scope for you: Property Access Razor allows you to output a variable value, or a sub-property on a variable that is referenced via “dot” notation: You can also use “dot” notation to access sub-properties multiple levels deep: Array/Collection Indexing: Razor allows you to index into collections or arrays: Calling Methods: Razor also allows you to invoke methods: Notice how for all of the scenarios above how we did not have to explicitly end the code nugget.  Razor was able to implicitly identify the end of the code block for us. Razor’s Parsing Algorithm for Code Nuggets The below algorithm captures the core parsing logic we use to support “@” expressions within Razor, and to enable the implicit code nugget scenarios above: Parse an identifier - As soon as we see a character that isn't valid in a C# or VB identifier, we stop and move to step 2 Check for brackets - If we see "(" or "[", go to step 2.1., otherwise, go to step 3  Parse until the matching ")" or "]" (we track nested "()" and "[]" pairs and ignore "()[]" we see in strings or comments) Go back to step 2 Check for a "." - If we see one, go to step 3.1, otherwise, DO NOT ACCEPT THE "." as code, and go to step 4 If the character AFTER the "." is a valid identifier, accept the "." and go back to step 1, otherwise, go to step 4 Done! Differentiating between code and content Step 3.1 is a particularly interesting part of the above algorithm, and enables Razor to differentiate between scenarios where an identifier is being used as part of the code statement, and when it should instead be treated as static content: Notice how in the snippet above we have ? and ! characters at the end of our code nuggets.  These are both legal C# identifiers – but Razor is able to implicitly identify that they should be treated as static string content as opposed to being part of the code expression because there is whitespace after them.  This is pretty cool and saves us keystrokes. Explicit Code Nuggets in Razor Razor is smart enough to implicitly identify a lot of code nugget scenarios.  But there are still times when you want/need to be more explicit in how you scope the code nugget expression.  The @(expression) syntax allows you to do this: You can write any C#/VB code statement you want within the @() syntax.  Razor will treat the wrapping () characters as the explicit scope of the code nugget statement.  Below are a few scenarios where we could use the explicit code nugget feature: Perform Arithmetic Calculation/Modification: You can perform arithmetic calculations within an explicit code nugget: Appending Text to a Code Expression Result: You can use the explicit expression syntax to append static text at the end of a code nugget without having to worry about it being incorrectly parsed as code: Above we have embedded a code nugget within an <img> element’s src attribute.  It allows us to link to images with URLs like “/Images/Beverages.jpg”.  Without the explicit parenthesis, Razor would have looked for a “.jpg” property on the CategoryName (and raised an error).  By being explicit we can clearly denote where the code ends and the text begins. Using Generics and Lambdas Explicit expressions also allow us to use generic types and generic methods within code expressions – and enable us to avoid the <> characters in generics from being ambiguous with tag elements. One More Thing….Intellisense within Attributes We have used code nuggets within HTML attributes in several of the examples above.  One nice feature supported by the Razor code editor within Visual Studio is the ability to still get VB/C# intellisense when doing this. Below is an example of C# code intellisense when using an implicit code nugget within an <a> href=”” attribute: Below is an example of C# code intellisense when using an explicit code nugget embedded in the middle of a <img> src=”” attribute: Notice how we are getting full code intellisense for both scenarios – despite the fact that the code expression is embedded within an HTML attribute (something the existing .aspx code editor doesn’t support).  This makes writing code even easier, and ensures that you can take advantage of intellisense everywhere. Summary Razor enables a clean and concise templating syntax that enables a very fluid coding workflow.  Razor’s ability to implicitly scope code nuggets reduces the amount of typing you need to perform, and leaves you with really clean code. When necessary, you can also explicitly scope code expressions using a @(expression) syntax to provide greater clarity around your intent, as well as to disambiguate code statements from static markup. Hope this helps, Scott P.S. In addition to blogging, I am also now using Twitter for quick updates and to share links. Follow me at: twitter.com/scottgu

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• Persisting Session Between Different Browser Instances

  - by imran_ku07

      Introduction:          By default inproc session's identifier cookie is saved in browser memory. This cookie is known as non persistent cookie identifier. This simply means that if the user closes his browser then the cookie is immediately removed. On the other hand cookies which stored on the user’s hard drive and can be reused for later visits are called persistent cookies. Persistent cookies are less used than nonpersistent cookies because of security. Simply because nonpersistent cookies makes session hijacking attacks more difficult and more limited. If you are using shared computer then there are lot of chances that your persistent session will be used by other shared members. However this is not always the case, lot of users desired that their session will remain persisted even they open two instances of same browser or when they close and open a new browser. So in this article i will provide a very simple way to persist your session even the browser is closed.   Description:          Let's create a simple ASP.NET Web Application. In this article i will use Web Form but it also works in MVC. Open Default.aspx.cs and add the following code in Page_Load.    protected void Page_Load(object sender, EventArgs e)        {            if (Session["Message"] != null)                Response.Write(Session["Message"].ToString());            Session["Message"] = "Hello, Imran";        }          This page simply shows a message if a session exist previously and set the session.          Now just run the application, you will just see an empty page on first try. After refreshing the page you will see the Message "Hello, Imran". Now just close the browser and reopen it or just open another browser instance, you will get the exactly same behavior when you run your application first time . Why the session is not persisted between browser instances. The simple reason is non persistent session cookie identifier. The session cookie identifier is not shared between browser instances. Now let's make it persistent.          To make your application share session between different browser instances just add the following code in global.asax.    protected void Application_PostMapRequestHandler(object sender, EventArgs e)           {               if (Request.Cookies["ASP.NET_SessionIdTemp"] != null)               {                   if (Request.Cookies["ASP.NET_SessionId"] == null)                       Request.Cookies.Add(new HttpCookie("ASP.NET_SessionId", Request.Cookies["ASP.NET_SessionIdTemp"].Value));                   else                       Request.Cookies["ASP.NET_SessionId"].Value = Request.Cookies["ASP.NET_SessionIdTemp"].Value;               }           }          protected void Application_PostRequestHandlerExecute(object sender, EventArgs e)        {             HttpCookie cookie = new HttpCookie("ASP.NET_SessionIdTemp", Session.SessionID);               cookie.Expires = DateTime.Now.AddMinutes(Session.Timeout);               Response.Cookies.Add(cookie);         }          This code simply state that during Application_PostRequestHandlerExecute(which is executed after HttpHandler) just add a persistent cookie ASP.NET_SessionIdTemp which contains the value of current user SessionID and sets the timeout to current user session timeout.          In Application_PostMapRequestHandler(which is executed just before th session is restored) we just check whether the Request cookie contains ASP.NET_SessionIdTemp. If yes then just add or update ASP.NET_SessionId cookie with ASP.NET_SessionIdTemp. So when a new browser instance is open, then a check will made that if ASP.NET_SessionIdTemp exist then simply add or update ASP.NET_SessionId cookie with ASP.NET_SessionIdTemp.          So run your application again, you will get the last closed browser session(if it is not expired).   Summary:          Persistence session is great way to increase the user usability. But always beware the security before doing this. However there are some cases in which you might need persistence session. In this article i just go through how to do this simply. So hopefully you will again enjoy this simple article too.

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• How to resize / enlarge / grow a non-LVM ext4 partition

  - by Mischa

  I have already searched the forums, but couldnt find a good suitable answer: I have an Ubuntu Server 10.04 as KVM Host and a guest system, that also runs 10.04. The host system uses LVM and there are three logical volumes, which are provided to the guest as virtual block devices - one for /, one for /home and one for swap. The guest had been partitioned without LVM. I have already enlarged the logical volume in the host system - the guest successfully sees the bigger virtual disk. However, this virtual disk contains one "good old" partition, which still has the old small size. The output of fdisk -l is me@produktion:/$ LC_ALL=en_US sudo fdisk -l Disk /dev/vda: 32.2 GB, 32212254720 bytes 255 heads, 63 sectors/track, 3916 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000c8ce7 Device Boot Start End Blocks Id System /dev/vda1 * 1 3917 31455232 83 Linux Disk /dev/vdb: 2147 MB, 2147483648 bytes 244 heads, 47 sectors/track, 365 cylinders Units = cylinders of 11468 * 512 = 5871616 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x000f2bf7 Device Boot Start End Blocks Id System /dev/vdb1 1 366 2095104 82 Linux swap / Solaris Partition 1 has different physical/logical beginnings (non-Linux?): phys=(0, 32, 33) logical=(0, 43, 28) Partition 1 has different physical/logical endings: phys=(260, 243, 47) logical=(365, 136, 44) Disk /dev/vdc: 225.5 GB, 225485783040 bytes 255 heads, 63 sectors/track, 27413 cylinders Units = cylinders of 16065 * 512 = 8225280 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x00027f25 Device Boot Start End Blocks Id System /dev/vdc1 1 9138 73398272 83 Linux The output of parted print all is Model: Virtio Block Device (virtblk) Disk /dev/vda: 32.2GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 32.2GB 32.2GB primary ext4 boot Model: Virtio Block Device (virtblk) Disk /dev/vdb: 2147MB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 2146MB 2145MB primary linux-swap(v1) Model: Virtio Block Device (virtblk) Disk /dev/vdc: 225GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 75.2GB 75.2GB primary ext4 What I want to achieve is to simply grow or resize the partition /dev/vdc1 so that it uses the whole space provided by the virtual block device /dev/vdc. The problem is, that when I try to do that with parted, it complains: (parted) select /dev/vdc Using /dev/vdc (parted) print Model: Virtio Block Device (virtblk) Disk /dev/vdc: 225GB Sector size (logical/physical): 512B/512B Partition Table: msdos Number Start End Size Type File system Flags 1 1049kB 75.2GB 75.2GB primary ext4 (parted) resize 1 WARNING: you are attempting to use parted to operate on (resize) a file system. parted's file system manipulation code is not as robust as what you'll find in dedicated, file-system-specific packages like e2fsprogs. We recommend you use parted only to manipulate partition tables, whenever possible. Support for performing most operations on most types of file systems will be removed in an upcoming release. Start? [1049kB]? End? [75.2GB]? 224GB Error: File system has an incompatible feature enabled. Compatible features are has_journal, dir_index, filetype, sparse_super and large_file. Use tune2fs or debugfs to remove features. So what can I do? This is a headless production system. What is a safe way to grow this partition? I CAN unmount it, though - so this is not the problem.

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• Fresh Ubuntu Install - Grub not loading

  - by Ryan Sharp

  System Ubuntu 12.04 64-bit Windows 7 SP1 Samsung 64GB SSD - OS' Samsung 1TB HDD - Games, /Home, Swap WD 300'ishGB HDD - Backup Okay, so I'm very frustrated, so please excuse me if I miss anything out as my head is clouded by anger and impatience, etc. I'll try me best, though. First of all, I'll explain how I got to my predicament. I finally got my new SSD. I firstly installed Windows, which completed without a hitch. Afterwards, I tried to install Ubuntu, which failed several times due to problems irrelevant to this question, but I mention this to explain my frustrations, sorry. Anyway, I finally installed Ubuntu. However, I chose the 'bootloader' to be installed on the same partition as where I was installing the Ubuntu Root partition, as that was what I believed to be the best choice. It was of my thinking that it was supposed to go on the same partition and on the SSD, which is my OS drive, though with my problem, it apparently was wrong. So I tried to fix it by checking guides and following their directions, but seemed to have messed it up even more. Here is what I receive after I use the fdisk -l command: (I also added explanations for which I used each partition for) Disk /dev/sda: 64.0 GB, 64023257088 bytes 255 heads, 63 sectors/track, 7783 cylinders, total 125045424 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x324971d1 Device Boot Start End Blocks Id System /dev/sda1 * 2048 206847 102400 7 HPFS/NTFS/exFAT /dev/sda2 208896 48957439 24374272 7 HPFS/NTFS/exFAT /dev/sda3 48959486 125044735 38042625 5 Extended /dev/sda5 48959488 125044735 38042624 83 Linux sda1 --/ Windows Recovery sda2 --/ Windows 7 sda3/5 --/ Ubuntu root [ / ] Disk /dev/sdb: 1000.2 GB, 1000204886016 bytes 255 heads, 63 sectors/track, 121601 cylinders, total 1953525168 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0xc0ee6a69 Device Boot Start End Blocks Id System /dev/sdb1 1024208894 1953523711 464657409 5 Extended /dev/sdb3 * 2048 1024206847 512102400 7 HPFS/NTFS/exFAT /dev/sdb5 1024208896 1939851263 457821184 83 Linux /dev/sdb6 1939853312 1953523711 6835200 82 Linux swap / Solaris sdb3 --/ Partition for Steam games, etc. sdb5 --/ Ubuntu Home [ /home ] sdb6 --/ Ubuntu Swap Partition table entries are not in disk order Disk /dev/sdc: 320.1 GB, 320072933376 bytes 255 heads, 63 sectors/track, 38913 cylinders, total 625142448 sectors Units = sectors of 1 * 512 = 512 bytes Sector size (logical/physical): 512 bytes / 512 bytes I/O size (minimum/optimal): 512 bytes / 512 bytes Disk identifier: 0x292eee23 Device Boot Start End Blocks Id System /dev/sdc1 2048 625141759 312569856 7 HPFS/NTFS/exFAT sdc1 --/ Generic backup I also used a Boot Script that other users suggested, so that I can give more details on my partitions and also where Grub is located... ============================= Boot Info Summary: =============================== => Grub2 (v1.99) is installed in the MBR of /dev/sda and looks at sector 1 of the same hard drive for core.img. core.img is at this location and looks for (,msdos5)/boot/grub on this drive. => Grub2 (v1.99) is installed in the MBR of /dev/sdb and looks at sector 1 of the same hard drive for core.img. core.img is at this location and looks for (,msdos5)/boot/grub on this drive. => Windows is installed in the MBR of /dev/sdc. Now that is weird... Why would Grub2 be installed on both my SSD and HDD? Even weirder is why is Windows on the MBR of my backup hard drive? Nothing I did should have done that... Anyway, here is the entire Output from that script... PASTEBIN So, to summarize what I need: How can I fix my setup so grub loads on startup? How can I clean my partitions to remove unnecessary grubs? What did I do wrong so that I don't do something so daft again? Thank you so much for reading, and I hope you can help me. I've been trying to have a successful setup since Friday, and I'm almost at the point that I'm really tempted to throw my computer out the window due to my frustration.

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• iphone xcode annotation pin drop with slider value change also remove

  - by chirag

  i have to add annotation pin on location with UIslider Value change .... this is code where i add annotation (MKAnnotationView *) mapView:(MKMapView *)mapView1 viewForAnnotation:(id ) annotation{ MKAnnotationView* annotationView = nil; NSString* identifier = @"Pin"; MyAnnotationView* annView = (MyAnnotationView*)[mapView1 dequeueReusableAnnotationViewWithIdentifier:identifier]; // annotationView.leftCalloutAccessoryView = myImage; //myImage = [UIButton buttonWithType:UIButtonTypeCustom]; // [myImage setImage:[UIImage imageNamed:@"mark.png"]forState:UIControlStateNormal]; //Property_Photo UIButton *mybtn = [UIButton buttonWithType:UIButtonTypeCustom]; if([annotation isKindOfClass:[AddressAnnotation class]]){ AddressAnnotation x=(AddressAnnotation)annotation; mybtn.frame = CGRectMake(0, 0, 35, 35); mybtn.contentVerticalAlignment = UIControlContentVerticalAlignmentCenter; mybtn.contentHorizontalAlignment = UIControlContentHorizontalAlignmentCenter; [mybtn setImage:[UIImage imageNamed:@"btn.png"] forState:UIControlStateNormal]; [mybtn setTitle:[NSString stringWithFormat:@"%@",[x getID]] forState:UIControlStateDisabled]; [mybtn addTarget:self action:@selector(btnShowProperty:) forControlEvents:UIControlEventTouchUpInside]; ((IMOVEISAppDelegate*)[[UIApplication sharedApplication]delegate]).strPropertyPrice = [[myTblArray objectAtIndex:imgIndex]valueForKey:@"Property_Price"]; NSLog(@"property price: %@",((IMOVEISAppDelegate*)[[UIApplication sharedApplication]delegate]).strPropertyPrice); if(nil == annView) { ///if(annView!=nil && [annView retainCount]>0){ [annView release]; annView=nil; } annView = [[[MyAnnotationView alloc] initWithAnnotation:x reuseIdentifier:identifier] autorelease]; if(Objslider.value==10){ [myMapView removeAnnotations:myMapView.annotations]; } } NSURL *imgURL = [NSURL URLWithString:[[myTblArray objectAtIndex:imgIndex]valueForKey:@"Property_Photo"]]; UIImage *imgPhoto = [UIImage imageWithData:[NSData dataWithContentsOfURL:imgURL]]; UIImageView *pinImgView = [[UIImageView alloc]initWithFrame:CGRectMake(0, 0,35, 35)]; imgIndex++; [pinImgView setImage:imgPhoto]; annView.rightCalloutAccessoryView = mybtn; annView.leftCalloutAccessoryView = pinImgView; [annView setBackgroundColor:[UIColor clearColor]]; } [annView setEnabled:YES]; annView.canShowCallout = YES; annView.calloutOffset = CGPointMake(-5, 5); annotationView = annView; return annotationView; }

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• Random MKAnnotationView is tapped when there are overlapping annotations

  - by Alexandre Gellibert

  I cannot believe this bug/problem doesn't have any solution! In my iphone application, I'm using MapKit with MKMapView and custom MKAnnotationView. The problem is when annotations overlap (in my app, annotations are photos and those photos may overlap) and when you tap on the annotation that appears on front, other annotation (on back) receives the event (seems to be random). I didn't find any way to send the event to the front annotation. Z ordering and Order of overlapping annotations questions on stackoverflow did not help me that much. Please any idea is welcome (even ugly ones)! Here's some of my code (nothing fancy, very common): CustomAnnotation.h @interface CustomAnnotation : NSObject <MKAnnotation> { @private CustomAnnotationView* view; } @property (nonatomic, retain) CustomAnnotationView* view; @end CustomAnnotation.m @implementation CustomAnnotation @synthetize view; CustomAnnotationView.h @interface CustomAnnotationView : MKAnnotationView { } @end CustomAnnotationView.m @implementation CustomAnnotationView - (void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{ // Do something related to the annotation tapped } @end Main class ... // Annotations are added and some of them overlaps with others. - (void)addAnnotation:(CustomAnnotation*)annotation { [map addAnnotation:annotation]; } ... - (MKAnnotationView *)mapView:(MKMapView *)mapView viewForAnnotation:(id <MKAnnotation>)annotation { NSString* identifier = getIdentifierFromAnnotation(annotation); CustomAnnotationView* view; if(!(view = (CustomAnnotationView*)[map dequeueReusableAnnotationViewWithIdentifier:identifier])) { view = [[CustomAnnotationView alloc] initWithAnnotation:annotation reuseIdentifier: identifier]; [(CustomAnnotation*)annotation setView:view]; [view release]; } return view; }

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• C: Running Unix configure file in Windows

  - by Shiftbit

  I would like to port a few applications that I use on Linux to Windows. In particular I have been working on wdiff. A program that compares the differences word by word of two files. Currently I have been able to successfully compile the program on windows through Cygwin. However, I would like to run the program natively on Windows similar to the Project: UnixUtils. How would I go about porting unix utilities on a windows environment? My possible guess it to manually create the ./configure file so that I can create a proper makefile. Am I on the right track? Has anyone had experience porting GNU software to windows? Update: I've compiled it on Code::Blocks and I get two errors: wdiff.c|226|error: `SIGPIPE' undeclared (first use in this function) readpipe.c:71: undefined reference to `_pipe' readpipe.c:74: undefined reference to `_fork This is a linux signal that is not supported by windows... equvilancy? wdiff.c|1198|error: `PRODUCT' undeclared (first use in this function)| this is in the configure.in file... hardcode would probably be the fastest solution... Outcome: MSYS took care of the configure problems, however MinGW couldnt solve the posix issues. I attempt to utilize pthreads as recommended by mrjoltcola. However, after several hours I couldnt get it to compile nor link using the provided libraries. I think if this had worked it would have been the solution I was after. Special mention to Michael Madsen for MSYS.

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• How do I make C++/wxWidgets code accessible to a wxPython app?

  - by Jon Cage

  I have a code library which is written in C++ and makes extensive use of the wxWidgets library. I'm now trying to wrap my library (currently using SWIG) so that it's callable from wxPython, but I've hit a wall: ------ Build started: Project: MyLibLib, Configuration: Release_SWIG_OutputForBin Win32 ------ Performing Custom Build Step In order to function correctly, please ensure the following environment variables are correctly set: PYTHON_INCLUDE: C:\Python26\include PYTHON_LIB: C:\Python26\libs\python26.lib d:\MyProject\Software\MyLib\trunk\MyLib>C:\swigwin-2.0.0\swig.exe -python d:\MyProject\Software\MyLib\trunk\MyLibLib\MyLib.i d:\MyProject\Software\MyLib\trunk\MyLib>if errorlevel 1 goto VCReportError d:\MyProject\Software\MyLib\trunk\MyLib>goto VCEnd Compiling... MyLib_wrap.c C:\wxWidgets-2.8.10\include\wx/wxchar.h(886) : warning C4273: '_snprintf' : inconsistent dll linkage c:\Program Files\Microsoft Visual Studio 9.0\VC\include\stdio.h(358) : see previous definition of '_snprintf' C:\wxWidgets-2.8.10\include\wx/buffer.h(127) : error C2061: syntax error : identifier 'wxCharBuffer' C:\wxWidgets-2.8.10\include\wx/buffer.h(127) : error C2059: syntax error : ';' C:\wxWidgets-2.8.10\include\wx/buffer.h(127) : error C2449: found '{' at file scope (missing function header?) C:\wxWidgets-2.8.10\include\wx/buffer.h(127) : error C2059: syntax error : '}' C:\wxWidgets-2.8.10\include\wx/buffer.h(127) : error C2059: syntax error : ')' C:\wxWidgets-2.8.10\include\wx/buffer.h(129) : error C2061: syntax error : identifier 'wxWritableCharBuffer' C:\wxWidgets-2.8.10\include\wx/buffer.h(129) : error C2059: syntax error : ';' C:\wxWidgets-2.8.10\include\wx/buffer.h(129) : error C2059: syntax error : ':' C:\wxWidgets-2.8.10\include\wx/buffer.h(134) : error C2061: syntax error : identifier 'wxWCharBuffer' C:\wxWidgets-2.8.10\include\wx/buffer.h(134) : error C2059: syntax error : ';' C:\wxWidgets-2.8.10\include\wx/buffer.h(134) : error C2449: found '{' at file scope (missing function header?) C:\wxWidgets-2.8.10\include\wx/buffer.h(134) : error C2059: syntax error : '}' C:\wxWidgets-2.8.10\include\wx/buffer.h(134) : fatal error C1004: unexpected end-of-file found Build log was saved at "file://d:\MyProject\Software\MyLib\trunk\MyLib\Release_SWIG_OutputForBin\BuildLog.htm" MyLibLib - 13 error(s), 1 warning(s) ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ========== Is there a particular way I should be going about this? I spent some time googling for similar errors, but got none which suggests I'm probably barking up the wrong tree here...? [Edit] Is a dll and ctypes the answer?

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• Help with Boost Spirit ASTs

  - by Decmac04

  I am writing a small tool for analyzing simple B Machine substitutions as part of a college research work. The code successfully parse test inputs of the form mySubst := var1 + var2. However, I get a pop-up error message saying "This application has requested the Runtime to terminate it in an unusual way. " In the command prompt window, I get an "Assertion failed message". The main program is given below: // BMachineTree.cpp : Defines the entry point for the console application. // /*============================================================================= Copyright (c) 2010 Temitope Onunkun =============================================================================*/ /////////////////////////////////////////////////////////////////////////////// // // UUsing Boost Spririt Trees (AST) to parse B Machine Substitutions. // /////////////////////////////////////////////////////////////////////////////// #define BOOST_SPIRIT_DUMP_PARSETREE_AS_XML #include <boost/spirit/core.hpp> #include <boost/spirit/tree/ast.hpp> #include <boost/spirit/tree/tree_to_xml.hpp> #include "BMachineTreeGrammar.hpp" #include <iostream> #include <stack> #include <functional> #include <string> #include <cassert> #include <vector> #if defined(BOOST_SPIRIT_DUMP_PARSETREE_AS_XML) #include <map> #endif // Using AST to parse B Machine substitutions //////////////////////////////////////////////////////////////////////////// using namespace std; using namespace boost::spirit; typedef char const* iterator_t; typedef tree_match<iterator_t> parse_tree_match_t; typedef parse_tree_match_t::tree_iterator iter_t; //////////////////////////////////////////////////////////////////////////// string evaluate(parse_tree_match_t hit); string eval_machine(iter_t const& i); vector<string> dx; string evaluate(tree_parse_info<> info) { return eval_machine(info.trees.begin()); } string eval_machine(iter_t const& i) { cout << "In eval_machine. i->value = " << string(i->value.begin(), i->value.end()) << " i->children.size() = " << i->children.size() << endl; if (i->value.id() == substitution::leafValueID) { assert(i->children.size() == 0); // extract string tokens string leafValue(i->value.begin(), i->value.end()); dx.push_back(leafValue.c_str()); return leafValue.c_str(); } // else if (i->value.id() == substitution::termID) { if ( (*i->value.begin() == '*') || (*i->value.begin() == '/') ) { assert(i->children.size() == 2); dx.push_back( eval_machine(i->children.begin()) ); dx.push_back( eval_machine(i->children.begin()+1) ); return eval_machine(i->children.begin()) + " " + eval_machine(i->children.begin()+1); } // else assert(0); } else if (i->value.id() == substitution::expressionID) { if ( (*i->value.begin() == '+') || (*i->value.begin() == '-') ) { assert(i->children.size() == 2); dx.push_back( eval_machine(i->children.begin()) ); dx.push_back( eval_machine(i->children.begin()+1) ); return eval_machine(i->children.begin()) + " " + eval_machine(i->children.begin()+1); } else assert(0); } // else if (i->value.id() == substitution::simple_substID) { if (*i->value.begin() == (':' >> '=') ) { assert(i->children.size() == 2); dx.push_back( eval_machine(i->children.begin()) ); dx.push_back( eval_machine(i->children.begin()+1) ); return eval_machine(i->children.begin()) + "|->" + eval_machine(i->children.begin()+1); } else assert(0); } else { assert(0); // error } return 0; } //////////////////////////////////////////////////////////////////////////// int main() { // look in BMachineTreeGrammar for the definition of BMachine substitution BMach_subst; cout << "/////////////////////////////////////////////////////////\n\n"; cout << "\t\tB Machine Substitution...\n\n"; cout << "/////////////////////////////////////////////////////////\n\n"; cout << "Type an expression...or [q or Q] to quit\n\n"; string str; while (getline(cin, str)) { if (str.empty() || str[0] == 'q' || str[0] == 'Q') break; tree_parse_info<> info = ast_parse(str.c_str(), BMach_subst, space_p); if (info.full) { #if defined(BOOST_SPIRIT_DUMP_PARSETREE_AS_XML) // dump parse tree as XML std::map<parser_id, std::string> rule_names; rule_names[substitution::identifierID] = "identifier"; rule_names[substitution::leafValueID] = "leafValue"; rule_names[substitution::factorID] = "factor"; rule_names[substitution::termID] = "term"; rule_names[substitution::expressionID] = "expression"; rule_names[substitution::simple_substID] = "simple_subst"; tree_to_xml(cout, info.trees, str.c_str(), rule_names); #endif // print the result cout << "Variables in Vector dx: " << endl; for(vector<string>::iterator idx = dx.begin(); idx < dx.end(); ++idx) cout << *idx << endl; cout << "parsing succeeded\n"; cout << "result = " << evaluate(info) << "\n\n"; } else { cout << "parsing failed\n"; } } cout << "Bye... :-) \n\n"; return 0; } The grammar, defined in BMachineTreeGrammar.hpp file is given below: /*============================================================================= Copyright (c) 2010 Temitope Onunkun http://www.dcs.kcl.ac.uk/pg/onun Use, modification and distribution is subject to the Boost Software License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) =============================================================================*/ #ifndef BOOST_SPIRIT_BMachineTreeGrammar_HPP_ #define BOOST_SPIRIT_BMachineTreeGrammar_HPP_ using namespace boost::spirit; /////////////////////////////////////////////////////////////////////////////// // // Using Boost Spririt Trees (AST) to parse B Machine Substitutions. // /////////////////////////////////////////////////////////////////////////////// //////////////////////////////////////////////////////////////////////////// // // B Machine Grammar // //////////////////////////////////////////////////////////////////////////// struct substitution : public grammar<substitution> { static const int identifierID = 1; static const int leafValueID = 2; static const int factorID = 3; static const int termID = 4; static const int expressionID = 5; static const int simple_substID = 6; template <typename ScannerT> struct definition { definition(substitution const& ) { // Start grammar definition identifier = alpha_p >> (+alnum_p | ch_p('_') ) ; leafValue = leaf_node_d[ lexeme_d[ identifier | +digit_p ] ] ; factor = leafValue | inner_node_d[ ch_p( '(' ) >> expression >> ch_p(')' ) ] ; term = factor >> *( (root_node_d[ch_p('*') ] >> factor ) | (root_node_d[ch_p('/') ] >> factor ) ); expression = term >> *( (root_node_d[ch_p('+') ] >> term ) | (root_node_d[ch_p('-') ] >> term ) ); simple_subst= leaf_node_d[ lexeme_d[ identifier ] ] >> root_node_d[str_p(":=")] >> expression ; // End grammar definition // turn on the debugging info. BOOST_SPIRIT_DEBUG_RULE(identifier); BOOST_SPIRIT_DEBUG_RULE(leafValue); BOOST_SPIRIT_DEBUG_RULE(factor); BOOST_SPIRIT_DEBUG_RULE(term); BOOST_SPIRIT_DEBUG_RULE(expression); BOOST_SPIRIT_DEBUG_RULE(simple_subst); } rule<ScannerT, parser_context<>, parser_tag<simple_substID> > simple_subst; rule<ScannerT, parser_context<>, parser_tag<expressionID> > expression; rule<ScannerT, parser_context<>, parser_tag<termID> > term; rule<ScannerT, parser_context<>, parser_tag<factorID> > factor; rule<ScannerT, parser_context<>, parser_tag<leafValueID> > leafValue; rule<ScannerT, parser_context<>, parser_tag<identifierID> > identifier; rule<ScannerT, parser_context<>, parser_tag<simple_substID> > const& start() const { return simple_subst; } }; }; #endif The output I get on running the program is: ///////////////////////////////////////////////////////// B Machine Substitution... ///////////////////////////////////////////////////////// Type an expression...or [q or Q] to quit mySubst := var1 - var2 parsing succeeded In eval_machine. i->value = := i->children.size() = 2 Assertion failed: 0, file c:\redmound\bmachinetree\bmachinetree\bmachinetree.cpp , line 114 I will appreciate any help in resolving this problem.

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• multiple compiling errors with basic C++ application on VS2010 Beta 1

  - by ratata

  I just recently installed VS2010 Beta 1 from the Microsoft website , I started a basic C++ Win32 Console Application , that generated the following code: #include "stdafx.h" int _tmain(int argc, _TCHAR* argv[]) { return 0; } I tried compiling the code just to see how it runs and just then I encountered several(over a 100) compiling errors. Here is the first part of the build output: 1>ClCompile: 1> stdafx.cpp 1>c:\program files\microsoft visual studio 10.0\vc\include\crtdefs.h(520): error C2065: '_In_opt_z_' : undeclared identifier 1>c:\program files\microsoft visual studio 10.0\vc\include\crtdefs.h(520): error C2143: syntax error : missing ')' before 'const' 1>c:\program files\microsoft visual studio 10.0\vc\include\crtdefs.h(520): warning C4229: anachronism used : modifiers on data are ignored 1>c:\program files\microsoft visual studio 10.0\vc\include\crtdefs.h(520): error C2182: '_invalid_parameter' : illegal use of type 'void' 1>c:\program files\microsoft visual studio 10.0\vc\include\crtdefs.h(520): error C2491: '_invalid_parameter' : definition of dllimport data not allowed 1>c:\program files\microsoft visual studio 10.0\vc\include\crtdefs.h(520): error C2059: syntax error : ')' 1>c:\program files\microsoft visual studio 10.0\vc\include\crtdefs.h(527): error C2065: '_In_opt_z_' : undeclared identifier 1>c:\program files\microsoft visual studio 10.0\vc\include\crtdefs.h(527): error C2143: syntax error : missing ')' before 'const' 1>c:\program files\microsoft visual studio 10.0\vc\include\crtdefs.h(527): warning C4229: anachronism used : modifiers on data are ignored pastebin for the full list I thought maybe the include files got mixed up by some other compiler version I have installed previously( I have VS 2008 as well) so I reinstalled VS2010 just to overwrite the headers but that didn't do much. Thanks in advance for any help you might offer as I am helpless

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• Parsec: backtracking not working

  - by Nathan Sanders

  I am trying to parse F# type syntax. I started writing an [F]Parsec grammar and ran into problems, so I simplified the grammar down to this: type ::= identifier | type -> type identifier ::= [A-Za-z0-9.`]+ After running into problems with FParsec, I switched to Parsec, since I have a full chapter of a book dedicated to explaining it. My code for this grammar is typeP = choice [identP, arrowP] identP = do id <- many1 (digit <|> letter <|> char '.' <|> char '`') -- more complicated code here later return id arrowP = do domain <- typeP string "->" range <- typeP return $ "("++domain++" -> "++range++")" run = parse (do t <- typeP eof return t) "F# type syntax" The problem is that Parsec doesn't backtrack by default, so > run "int" Right "int" -- works! > run "int->int" Left "F# type syntax" unexpected "-" expecting digit, letter, ".", "`" or end of input -- doesn't work! The first thing I tried was to reorder typeP: typeP = choice [arrowP, identP] But this just stack overflows because the grammar is left-recursive--typeP never gets to trying identP because it keeps trying arrowP over and over. Next I tried try in various places, for example: typeP = choice [try identP, arrowP] But nothing I do seems to change the basic behaviours of (1) stack overflow or (2) non-recognition of "-" following an identifier. My mistake is probably obvious to anybody who has successfully written a Parsec grammar. Can somebody point it out?

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• Problems with MediaPlayer, raw resources, stop and start

  - by arakn0

  Hello everybody, I'm new in Android development and I have the next question/problem. I'm playing around with the MediaPlayer class to reproduce some sounds/music. I am playing raw resources (res/raw) and it looks kind of easy. To play a raw resource, the MediaPlayer has to be initialized like this: MediaPlayer mp = MediaPlayer.create(appContext, R.raw.song); mp.start(); Until here there is no problem. The sound is played, and everything works fine. My problem appears when I want to add more options to my application. Specifically when I add the "Stop" button/option. Basically, what I want to do is...when I press "Stop", the music stops. And when I press "Start", the song/sound starts over. (pretty basic!) To stop the media player, you only have to call stop(). But to play the sound again, the media player has to be reseted and prepared. mp.reset(); mp.setDataSource(params); mp.prepare(); The problem is that the method setDataSource() only accepts as params a file path, Content Provider URI, streaming media URL path, or File Descriptor. So, since this method doesn't accept a resource identifier, I don't know how to set the data source in order to call prepare(). In addition, I don't understand why you can't use a Resouce identifier to set the data source, but you can use a resource identifier when initializing the MediaPlayer. I guess that I'm missing something. I wonder if I am mixing concepts, and the method stop() doesn't have to be called in the "Stop" button. Any help? Thanks in advanced!!!

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• Should I move big data blobs in JSON or in separate binary connection?

  - by Amagrammer

  QUESTION: Is it better to send large data blobs in JSON for simplicity, or send them as binary data over a separate connection? If the former, can you offer tips on how to optimize the JSON to minimize size? If the latter, is it worth it to logically connect the JSON data to the binary data using an identifier that appears in both, e.g., as "data" : "< unique identifier " in the JSON and with the first bytes of the data blob being < unique identifier ? CONTEXT: My iPhone application needs to receive JSON data over the 3G network. This means that I need to think seriously about efficiency of data transfer, as well as the load on the CPU. Most of the data transfers will be relatively small packets of text data for which JSON is a natural format and for which there is no point in worrying much about efficiency. However, some of the most critical transfers will be big blobs of binary data -- definitely at least 100 kilobytes of data, and possibly closer to 1 megabyte as customers accumulate a longer history with the product. (Note: I will be caching what I can on the iPhone itself, but the data still has to be transferred at least once.) It is NOT streaming data. I will probably use a third-party JSON SDK -- the one I am using during development is here. Thanks

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