wm4 559fe1daac Add Plan 9-style barriers ... Plan 9 has a very interesting synchronization mechanism, the rendezvous() call. A good property of this is that you don't need to explicitly initialize and destroy a barrier object, unlike as with e.g. POSIX barriers (which are mandatory to begin with). Upon "meeting", they can exchange a value. This mechanism will be nice to synchronize certain stages of initialization between threads in the following commit. Unlike Plan 9 rendezvous(), this is not implemented with a hashtable, because that would require additional effort (especially if you want to make it actually scele). Unlike the Plan 9 variant, we use intptr_t instead of void* as type for the value, because I expect that we will be mostly passing a status code as value and not a pointer. Converting an integer to void* requires two cast (because the integer needs to be intptr_t), the other way around it's only one cast. We don't particularly care about performance in this case either. It's simply not important for our use-case. So a simple linked list is used for waiters, and on wakeup, all waiters are temporarily woken up.		2014-07-26 20:29:48 +02:00
..
charset_conv.c	sub: add detection via BOM	2014-07-22 23:40:48 +02:00
charset_conv.h
ctype.h	Audit and replace all ctype.h uses	2014-07-01 23:11:08 +02:00
dispatch.c	Fix gcc 4.7 warning about shadowing talloc_parent in mp_dispact_queue	2014-05-28 22:44:43 +02:00
dispatch.h
rendezvous.c	Add Plan 9-style barriers	2014-07-26 20:29:48 +02:00
rendezvous.h	Add Plan 9-style barriers	2014-07-26 20:29:48 +02:00
ring.c	ring: use a different type for read/write pointers	2014-05-30 02:15:25 +02:00
ring.h