ufibers - user space fibers

Copyright © 2013-2015 Drew Thoreson

About

ufibers is a user space fibers/coroutines library. A fiber is much like a thread, except that fibers are voluntarily preempted.

Portability

ufibers is written in ISO C99, with a few assembly language routines to manage machine contexts. It does not depend on any special operating system support and uses only a few functions from libc (malloc, free and exit), so it should work on any operating system, or even on bare metal.

Since ufibers is written partially in assembly language, it is not portable between architectures. However, the asembly language routines are small and self-contained, so it should be fairly easy to port for someone with working knowledge of the target architecture. Currently ufibers supports the x86, x86_64 and ARM architectures.

Building

You'll need a C compiler supporting the C99 standard. GCC and Clang work.

To build the library as an archive:

$ make ufiber.a

Then copy ufiber.h to your include path, #include "ufiber.h" in your source files, and link your program against the generated archive (ufiber.a).

To build the library as a shared object:

$ make so

To install the shared library:

$ make install

Then #include <ufiber.h> in your source files and link your program with -lufiber.

Git Repository

https://github.com/drewt/ufibers

$ git clone https://github.com/drewt/ufibers.git