I'll probably write the wiki page while taking the bus to work next
week, but for now I'm unaware of any issues and have a working example.
There's a test.scm file in the repo that gives a quick rundown on how to
use a (non-shared) semaphore. That is to say, if you're using fork() and
only wish to synchronize processes in this sub-tree then you should be
good with the example in test.scm.
If you wish to synchronize unrelated processes then you'll need to use
posix-shm to store the semaphores. This O'Reilly page gives a good walk
through:
http://www.linuxdevcenter.com/pub/a/linux/2007/05/24/semaphores-in-linux.html?page=5
-Dan
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