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  • Can I swap WCF deserializer from configuration?

    - by JohnIdol
    I have a problem with WCF deserialization where the client hangs on the response for more than a minute. I'd like to try to swap different deserializers and see if it affects the behavior. Can I swap in/out different serializers (are there any others?) from configuration, and if so can I do that with any binding, or is that out of control once the service reference is imported? Any help appreciated!

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  • Swap values for two rows in the same table in SQL Server

    - by AmRoSH
    I have table and I want to swap the values from two rows. I have the rows IDs of the two rows. Is there any query to do that? Here is an example. Before the query I have this: row1 : 1,2,3 row2 : 5,6,7 After the swap I want this: row1 : 5,6,7 row2 : 1,2,3 I don't want write it in .NET code because I think an SQL query is easier than that.

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  • regarding C++ stl container swap function

    - by sm1
    I recently learned that all stl containers have swap function: i.e. c1.swap(c2); will lead to object underlying c1 being assigned to c2 and vice versa. I asked my professor if same is true in case of c1 and c2 being references. he said same mechanism is followed. I wonder how it happens since c++ references cannot be reseted.

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  • Function to swap pointers in Objective-C

    - by Michael
    - (void) swapController:(MyViewController*)controller1 with:(MyViewController*)controller2 { MyViewController *swap = controller2; controller2 = controller1; controller1 = swap; } Looks like this doesn't work because I'm not passing references. How to do it anyway?

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  • Scripting a permanent CTRL / CAPS swap in Gnome?

    - by Duncan Bayne
    I have a bash script that I use to configure a vanilla Ubuntu (10.10 Maverick Meerkat) installation to be exactly the way I want it. I make extensive use of gconftool-2 to configure the desktop, set up shortcut keys, etc. Now, I'm trying to swap the CTRL and CAPS keys. I have found two ways of doing this: In Gnome, go to System - Preferences - Keyboard - Layout - Options and make the change in there. This works well, but I don't know how to script this; the setting doesn't seem to be stored in the usual place as I can't find it with gconf-editor. Add the line setxkbmap -option "ctrl:swapcaps" to my .bashrc file. That works too, until I suspend the machine & then resume it. At that point the CTRL and CAPS behaviour return to normal, until I cause .bashrc to be run again by opening a new shell. This behaviour has been reported as a bug in RedHat. Could someone please suggest a way of switching those keys that is both permanent, and can be scripted? I'm sure I must be missing something obvious here ...

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  • Memory is free, but still swapping?

    - by japancheese
    Hello, I'm sure this is a pretty basic question, but I'm just trying to get a grasp of what's going on with my Ubuntu (Hardy Herron) server (running a Rails-based site). It seems that I have free memory available, yet the system is reporting that it is still swapping memory (unless I'm reading this incorrectly?). Here is the "free -m" output total used free shared buffers cached Mem: 1024 905 118 0 33 409 -/+ buffers/cache: 462 561 Swap: 2047 95 1952 Could anyone explain to me some possible reasons that it is maintaining 95mb of swap at all times (it is never less)? I'm just looking for some leads on things I could check out that would explain to me exactly how memory is utilized in Linux.

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  • Sharing RAM resources between 2 or more computers

    - by davee44
    I know there was a somewhat similar question before: How to share CPU or RAM? But, let me just specify it a little more... When Microsoft Windows requires more RAM capacity than available it uses a swap-file to temporarily store the data there, this is actually something like a hard-drive-based RAM. This technology is used for many years. Theoretically, it shouldn't be too hard to implement a similar technology that uses the RAM of different computer(s) in the network for temporary data storage. This just requires a software that runs on computers in the network that accepts and returns data from/to the main computer and keep that data in the RAM; plus the operation system of the main computer must have the ability to use computers in the network instead of (or in addition to) the swap-file. I wonder, are there any implementations of this idea? This would allow users to build RAM clusters using all of their home or office computers, that will boost the performance of a single computer for some development/gaming/video tasks, etc.

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  • Lock-Free Data Structures in C++ Compare and Swap Routine

    - by slf
    In this paper: Lock-Free Data Structures (pdf) the following "Compare and Swap" fundamental is shown: template <class T> bool CAS(T* addr, T exp, T val) { if (*addr == exp) { *addr = val; return true; } return false; } And then says The entire procedure is atomic But how is that so? Is it not possible that some other actor could change the value of addr between the if and the assignment? In which case, assuming all code is using this CAS fundamental, it would be found the next time something "expected" it to be a certain way, and it wasn't. However, that doesn't change the fact that it could happen, in which case, is it still atomic? What about the other actor returning true, even when it's changes were overwritten by this actor? If that can't possibly happen, then why? I want to believe the author, so what am I missing here? I am thinking it must be obvious. My apologies in advance if this seems trivial.

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  • TeamCity swap configuration files

    - by Edijs
    Hi! I have been using CC.NET for a while and decided to try Team City. The initial and default configuration is very easy, but how do I swap configuration files after code is checked out and before unit tests are run. I am using TFS, NUnit. 1. When working locally I have configuration file pointing to local server. 2. On the build server TeamCity get's notification that I have checked-in code and builds new version. 3. Server runs unit tests When on 3rd step server runs unit tests I need to swap configuration files that are pointing to other servers, not the ones I am using locally. How do you accomplish this task in TeamCity? Thanks, Edijs

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  • creating a wrapper around a 3rd party assembly - swap out and decouple

    - by mrblah
    I have an email component that I am integrating into my application, looking for some tips on how should build a wrapper around it so I can swap it out with another 3rd party component if needed. My approach right now is it: build an interface will the functionality I need. create a class that implements the interface, using my 3rd party component inside this class. any usage of this component will be via the interface so like: IPop3 pop3 = new AcmeIncePop3Wrapper(); pop3.connect(); and inside AcmeIncePop3Wrapper will be: public void connect() { AcmeIncePop3 pop = new AcmeIncePop3(); pop.connect(); } Is that a good approach? I could probably add another abstraction by using ninject so I could swap out implementations, but really this seems to be all I need as i don't expect to be changing 3rd party assemblies every day, just don't want to make things so tightly coupled.

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  • Swap unique indexed column values in database.

    - by Ramesh Soni
    I have a database table and one of the fields (not primary key) is having unique index on it. Now I want to swap values under this column for two rows. How could this be done? Two hack I know are: Delete both rows and re-insert them Update rows with some other value and swap and then update to actual value. But I don't want to go for these as they do not seem to be the appropriate solution to the problem. Could anyone help me out?

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  • Java memory mapped files and swap

    - by MarkS
    I'm looking at some memory mapped files in Java. Let's say I have a heap size set to 2gb, and I memory map a file that is 50gb - far more than the physical memory on the machine. The OS will cache parts of that 50gb file in the os file cache, the java process will have 2gb of heap space. What I'm curious about is how does the OS decide how much of the 50gb file to cache? For instance, if I have another java process, also with a 2gb heap size, will that 2gb be swapped out to allow the os to cache parts of the memory mapped file? Will parts of the heap space of the first process be swapped out to allow the OS to cache? Is there any way to tell the OS not to swap heap space for OS caching? If the OS doesn't swap out main processes, how does it determine how big its file cache should be?

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  • RAM being displayed is lesser than the actual in my Windows 7

    - by Prateek Somani
    I am using Windows 7 and Ubuntu on the same machine. Earlier I had 3 GB of RAM,but now the Windows is displaying just 1 GB of RAM. Please also find the output of the free command in my Ubuntu : total used free shared buffers cached Mem: 1008208 904808 103400 5736 13516 239596 -/+ buffers/cache: 651696 356512 Swap: 3127292 10252 3117040 Has the swap memory consumed my 2 GB of RAM? Will I be able to use the whole of 3GB of the RAM in my Windows? Regards, Prateek Update : I tried to run the lshw command and I got the following output : *-memory description: System Memory physical id: 1b slot: System board or motherboard size: 1GiB *-bank:0 description: SODIMM DDR3 Synchronous 1067 MHz (0.9 ns) product: HMT112S6BFR6C-H9 vendor: Hynix physical id: 0 serial: 2C71D069 slot: Bottom - Slot 1 size: 1GiB width: 64 bits clock: 1067MHz (0.9ns) *-bank:1 description: SODIMM DDR3 Synchronous 1067 MHz (0.9 ns) [empty] product: 16JSF25664HZ-1G4F1 vendor: Micron physical id: 1 serial: FD421821 slot: Bottom - Slot 2 width: 64 bits clock: 1067MHz (0.9ns) Why it is able to detect the vendor/product name of the bank-1 RAM, why can't it detect the RAM size and other details ? Has my RAM got faulty?

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  • How to swap the "fn" use of Function keys on al Apple Keyboard in Linux

    - by jfmessier
    I have an apple slim keyboard (USB) and if I want to use one of the Function Key as-is, I also have to press "fn " key first. Otherwise, it will try to perform the other function of the key, such as increasing or decreasing the display intensity, change the volume/mute, etc.... As well, the fn key is actually in the position of the "insert" key for regular keyboards. How can I fix all of that ? I really like this keyboard, as it make my typing much easier, and much more silent too. But some of those mappings that are different sometime bug me. Thanks :-)

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  • Can you "swap" the Sysprep answer file in Windows 7

    - by Ben
    I have a load of new Lenovo laptops which I am due to distribute in my company. We are distributed in multiple locations and I want to ship the laptops "boxed" and untouched by IT hand for distribution. We are using LANDesk to do all the software distribution and provisioning, but are currently falling at the first hurdle as when booted, the laptops kick into the Lenovo mini-setup wizard. I assume this is because they have been sysprepped at Lenovo. In order to keep with our (almost) zero touch strategy I want the users to PXE boot into a PE of some sort, which will run a script on startup which replaces the sysprep answer file with one of my own. (i.e. prepopulated with product key, company info etc.) and then reboot to complete Sysprep. The plan is that this will run, and then install the LANDesk agent as a post-sysprep task, which in turn will complete the provisioning. Anyone have any experience / know any pitfalls to look out for / can suggest a suitable, PXE-bootable PE environment? Apologies for the verbosity of the question - it takes a bit of explaining! Thanks in advance, Ben

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  • Windows XP seemingly out of resources but plenty of free RAM and swap available

    - by Artem Russakovskii
    This one has been bothering me for years and so far I couldn't find an adequate solution. The problem occurs on pretty much every XP install I've done. After opening a variety of programs or the system running existing programs for a while, Windows seemingly runs out of resources, without telling me. There's ALWAYS free RAM. For example, it just happened to me and I had over a gig of free RAM. There are no viruses, spyware, or other nonsense - it is a Windows resource problem, but the question is which resource is it running out of, how does one pinpoint it, and how does one prevent it? Sometimes, this happens after running specific programs - for example, today it happened when I started Photoshop CS4 and Flash CS4 at the same time. I also noticed that restarting The Bat (email client by Ritlabs) seems to get rid of this problem for a while but again, this happens on machines that don't even have The Bat installed. So what does exactly happen? The symptoms are: pressing alt-tab doesn't bring up the list anymore - it just jumps to the next window instantly, very similar to the way Alt-Esc works, however in this case, it's due to not having enough resources to bring up the alt-tab menu random programs would randomly crash, citing random errors, out of memory errors, system resources, inabilities to do system calls, etc. random programs would start missing random parts - for example, Firefox top menus might disappear, pull up partial selections, or not pull up anymore altogether. IE might lose a few of its toolbars. Some programs might fail to redraw or would just plain go gray where the UI used to be. Windows itself never complains about running out of RAM, virtual memory, or anything at all, yet it's running out of something. The only clue I was able to find and apply the fix today was this Desktop Heap Limitation. I haven't confirmed the fix working as not enough time passed. In the meantime, what are everyone's thoughts?

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  • How to power off a hard drive to essentially "hot swap"

    - by Brandon
    I'm looking for either freeware or the programming basics to power off/on a hard drive. Mounting and unmounting a hard drive is simple enough just using the command prompt in Windows XP. Now I need to be able to power down the hard drive so it will not become damaged when being unplugged. I would prefer this to be a simple doable in the command prompt, a simple script, or at worst C++/C#. Freeware that does this exact requirement would also do the job. This script/program will run on Windows XP with .NET 2.0 SP1.

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  • Swap static public IPs without creating DNS conflicts?

    - by Jakobud
    Our ISP is Comcast and we have 5 static public IPs from them that we use for various services, including customers connecting to our network, VPN, web, DNS, etc... We need more IP addresses from Comcast. Unfortunately, Comcast is telling us that they can't just simply give us 5 more addresses. They only give static IP addresses in blocks of 1, 5 or 13. In order for us to get more static IPs, they have to take away our current 5 static IPs and give us 13 new ones. How do we make this transition without causing all sorts of DNS chaos? We run public DNS servers, so we can make the DNS changes ourselves, but it will take some time obviously for those DNS changes to propagate throughout the internet. Are there any easy ways to make this transition? Like create some type of fallback DNS entry or something? Surely there must be some sort of procedure for this kind of thing. The Comcast support guy was useless.

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  • Is it okay to swap hdds?

    - by terrani
    Hi, I used to use a desktop to work, but I use a laptop now. My desktop has a SSD, so I am planning to format it and use it with my laptop. Then I got a question. Is it okay to just replace my laptop hdd to sdd without formatting?

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