musl - musl - an implementation of the standard library for Linux-based systems

Age	Commit message (Collapse)	Author	Lines
2011-09-28	next step making barrier self-sync'd destruction safe	Rich Felker	-2/+6
	i think this works, but it can be simplified. (next step)
2011-09-28	barrier destroy must also wait for threads in other processes exiting barrier	Rich Felker	-0/+2
	the vm lock only waits for threads in the same process exiting. actually this fix is not enough, but it's a start...
2011-09-27	process-shared barrier support, based on discussion with bdonlan	Rich Felker	-0/+6
	this implementation is rather heavy-weight, but it's the first solution i've found that's actually correct. all waiters actually wait twice at the barrier so that they can synchronize exit, and they hold a "vm lock" that prevents changes to virtual memory mappings (and blocks pthread_barrier_destroy) until all waiters are finished inspecting the barrier. thus, it is safe for any thread to destroy and/or unmap the barrier's memory as soon as pthread_barrier_wait returns, without further synchronization.
2011-02-12	initial check-in, version 0.5.0v0.5.0	Rich Felker	-0/+6