libipc is a mechanism that allows a C program to call a function that is executed in a different program. It is implemented as a thin layer on top of Unix-domain sockets.
It is under heavy development and the documentation has not been written yet.
It currently runs on FreeBSD and Linux, but should be portable to other POSIX-like systems.
What currently works:
- using the ipcc IDL compiler to generate code
- declaring functions that take integers or strings
- embedding an IPC server into an existing daemon
- calling remote functions as a client
What is planned for the future:
- support for passing file descriptors between processes
- declaring structures and passing them as function arguments
- merging the StateD library into libipc, and using it to provide support for variables
- thread safety
- a convenience function to call from main() that provides a complete IPC server-in-a-box. This would be for daemons that are purely for IPC, and don't have their own run loop.
What would be desired, but is not on the roadmap yet:
- asynchronous function calls
- kernel support for performance optimizations
Run "make" to build everything.
##Building on Linux
- Install libkqueue
- Run:
make CFLAGS="-I/usr/include/kqueue -D_BSD_SOURCE" LDADD="-lkqueue -ldl -lpthread"
Refer to the Developer's Guide for information about using this library.
There is a libipc-devel mailing list dedicated to discussion of this library.
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