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POSIX barrier implementation, take 3

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The attached patch should address all of the review comments.

Modifed change log:

Newlib:

	* libc/include/sys/features.h (_POSIX_BARRIERS): Define for Cygwin.
	* libc/include/sys/types.h (pthread_barrier_t)
	(pthread_barrierattr_t): Do not define for Cygwin.

Cygwin:

	* common.din (pthread_barrierattr_init)
	(pthread_barrierattr_setpshared, pthread_barrierattr_getpshared)
	(pthread_barrierattr_destroy, pthread_barrier_init)
	(pthread_barrier_destroy, pthread_barrier_wait): Export.
	* include/cygwin/types.h (pthread_barrierattr_t)
	(pthread_barrier_t): Declare.
	* include/pthread.h (PTHREAD_BARRIER_SERIAL_THREAD)
	(pthread_barrierattr_init, pthread_barrierattr_setpshared)
	(pthread_barrierattr_getpshared, pthread_barrierattr_destroy)
	(pthread_barrier_init, pthread_barrier_destroy)
	(pthread_barrier_wait): Declare.
	* thread.h (PTHREAD_BARRIER_MAGIC)
	(PTHREAD_BARRIERATTR_MAGIC): Define.
	(class pthread_barrierattr, class pthread_barrier): Declare.
	* thread.cc (delete_and_clear): New local helper function.
	(class pthread_barrierattr, class pthread_barrier): Implement.
	* miscfuncs.h (likely, unlikely): New macros.

--
VH
This commit is contained in:
Václav Haisman
2016-02-12 22:25:59 +01:00
committed by Corinna Vinschen
parent ef64aa4940
commit 813da84442
8 changed files with 328 additions and 4 deletions
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7
winsup/cygwin/common.din
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@@ -869,6 +869,13 @@ pthread_attr_setscope SIGFE
pthread_attr_setstack SIGFE
pthread_attr_setstackaddr SIGFE
pthread_attr_setstacksize SIGFE
pthread_barrierattr_init SIGFE
pthread_barrierattr_setpshared SIGFE
pthread_barrierattr_getpshared SIGFE
pthread_barrierattr_destroy SIGFE
pthread_barrier_init SIGFE
pthread_barrier_destroy SIGFE
pthread_barrier_wait SIGFE
pthread_cancel SIGFE
pthread_cond_broadcast SIGFE
pthread_cond_destroy SIGFE