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README.md

libxshmfence - Shared memory 'SyncFence' synchronization primitive

This library offers a CPU-based synchronization primitive compatible with the X SyncFence objects that can be shared between processes using file descriptor passing.

There are two underlying implementations:

  1. On Linux, the library uses futexes

  2. On other systems, the library uses posix mutexes and condition variables.

All questions regarding this software should be directed at the Xorg mailing list:

https://lists.x.org/mailman/listinfo/xorg

The primary development code repository can be found at:

https://gitlab.freedesktop.org/xorg/lib/libxshmfence

Please submit bug reports and requests to merge patches there.

For patch submission instructions, see:

https://www.x.org/wiki/Development/Documentation/SubmittingPatches