Using the Apple OS X Cocoa framework, how can I post a sheet (slide-down modal dialog) on the window of another process? Edit: Clarified a bit: My application is a Finder extension to do Subversion version control (http://scplugin.tigris.org/). Part of my application is a plug-in (a Contextual Menu Item for Finder); the bulk of my app...
I thought I'd use Boost.Interprocess's Message Queue in place of sockets for communication within one host. But after digging into it, it seems that this library for some reason eschews the POSIX message queue facility (which my Linux system supports), and instead is implemented on top of POSIX shared memory. The interface is similar e...
Hi, I'm using boost::interprocess to communicates between two applications. When the two applications are launch by the same user, it works great. When one of the application is a service, it fails. I found that the shared media is in fact a file that is created in the "TMP" directory. So it fails because each application is creatin...
I'd like to build a special AIR launcher program in C along the lines of java.exe. I've looked at running AIR programs with a process viewer and was able to locate the AIR runtime DLL that is being used. AIR programs are different than Java in that they are installed as platform-specific executables that bind the AIR runtime as an in-pr...
We'd like to support some hardware that has recently been discontinued. The driver for the hardware is a plain 32-bit C DLL. We don't have the source code, and (for legal reasons) are not interested in decompiling or reverse engineering the driver. The hardware sends tons of data quickly, so the communication protocol needs to be pretty...
I want communicate between a parent and child process both written in C#. It should be asynchronous, event driven. I does not want run a thread in every process that handle the very rare communication. What is the best solution for it? ...
I am writing a server which fork()'s off a child process when it accepts a socket connection. As the child communicates with a client, it must send some of that information back to the parent. I am using a pipe to accomplish this. The problem is that when I try to do the parent-child IPC, the parent blocks when reading input from the c...
If I have a program which creates and attempts to open a named pipe using mkfifo, how can I open a pipe for reading or writing without blocking? Specifically, I'm writing a C program which can be run with or without a gui (written in Java). In the C program, I successfully create the named pipes using mkfifo, however when I do FILE* i...
Hi, In my new project i am building a data management module.I want to give a simple template storage type to upper layers like template<typename T> class Data { public: T getValue(); private: boost::numeric::ublas::matrix<T> data; } My aim is, to change allocator of data with some different allocators like Boost.inter process...
We develop a network library that uses TCP and UDP sockets. This DLL is used by a testclient, which is started multiple times at the same PC for a load test. In Windows Vista, it is no problem to start the testclient many times. In Windows XP, starting it up to 5 times is no problem, but if we start it 6 times or more, and then closing ...
Assuming that I have to copy each image on the stream (I cannnot simply access that data with any mutex protection, it must be copied anyway), which method is better, pros/cons? I would like to know also how much performance loss this implied compared to using the images in the same process. Thanks ...
Hi, I need to share a stack of strings between processes (possibly more complex objects in the future). I've decided to use boost::interprocess but I can't get it to work. I'm sure it's because I'm not understanding something. I followed their example, but I would really appreciate it if someone with experience with using that library...
What are the pros and cons of using a file for interprocess communication? Let me give some background of the context I am asking this question in. The problem is the classical producer consumer problem with some constraints. The producers are set of cooperative process running on a cluster of machines and communicate with each othe...
I'm about to write a "server" application that is responsible to talk with external hardware. The application shall handle requests from clients. The clients send a message to the server, and if the server is busy with doing stuff with the hardware the new messages shall be stored in a queue that will be processed later. The client sha...
We are upgrading a suite of data acquisition and analysis routines from VB6 programs to a mixture of VB.NET, VB6, and Matlab programs. We want to keep the system modular (separate EXEs) so we can easily create specialized stand-alone analysis programs without having to constantly upgrade one massive application. We have used MBInterPro...
I need a few of my related applications to communicate to each other (exchange data and initiate actions). Requirements are without packages and no sockets. So I guess that leaves named pipes, WM_CopyData (like Skype does it) and command parameters. What are your best practices? ...
I have two exe running, c# console programs. From one, I need to tell the second exe to do something? How... ? I looked at (Remotable.CommonAssembly)Activator.GetObject(typeof(Remotable.CommonAssembly) but from here i can call a method of the CommonAssembly(referenced dll) not the exe one's. ...
Recently I had a problem using (pipe |-) when I wanted to communicate between two processes. Basically, the child process couldn't process STDIN as fast as it was filled up by parent. This caused parent to wait until STDIN was free and made it run slow. How big can STDIN be and is it possible to modify it. If yes, what is the best prac...
I am creating a windows service that starts a number of slave processes. In each of these slave process I start listening on a named pipe for message from the master process. I currently have the situation where the master process calls a slave via a named pipe before the slave is fully started and starts listening on the named pipe. ...
Hi, Have you ever written (or encountered) code that uses the procfs (the Linux /proc file system) in non-trivial ways? I have a very nice idea for a kernel patch, and I want to conduct some research and see code examples before I shape my idea. Udi EDIT I'm looking for interesting code examples that would demonstrate advanced usage ...