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linux-ipc-wrappers

This is a set of simple C libraries that simplify the use of Linux message queues, semaphores, shared memory, sockets, timers, and even serial ports.

The wrappers provided include:

• MessageQueueWrapper.c - a simple wrapper around System V message queues
• SemaphoreWrapper.c - a simple wrapper around Linux semaphores
• SerialWrapper.c - a simple wrapper which allows reading and writing from serial ports with all flow control turned off
• SharedMemoryWrapper.c - a simple wrapper around Linux shared memory
• SocketWrapper.c - a simple wrapper for performing IPv4 TCP socket operations
• TimerWrapper.c - a simple wrapper around linux time operations, providing a one-shot timer, a periodic timer, and a stop watch like timer

Compilation:

Just run make.

Examples:

Examples on how to use these libraries can be found in the examples/ directory. Compiling the source will create 4 examples programs:

• messageQueueWrapperTest - This example creates a System V message queue that connects two message queue ids. A message is sent between the two ids.
• semaphoreWrapperTest - This example creates a set of semaphores and performs various actions on them.
• socketWrapperTest - This example sends an HTTP request to a server and returns the resultant HTML.
• serialWrapperTest - This example requires the program socat which can be installed via apt-get or similiar. socat is used to connect a /dev/pts/# to stdout simulating a serial port connection. The example sends data through the simulated serial port and then receives data given by the user.

Contribution:

These wrappers mostly serve as a reminder to me of how to use the various Linux IPC functions. If you find a bug, or want to improve what I have here, please submit a pull request.

Enjoy!