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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
Download Patch File Download Diff File Expand all files Collapse all files

6
newlib/libc/include/sys/features.h
View File

@ -118,10 +118,10 @@ extern "C" {
#define _POSIX_ADVISORY_INFO 200112L
/* #define _POSIX_ASYNCHRONOUS_IO -1 */
/* #define _POSIX_BARRIERS -1 */
#define _POSIX_BARRIERS 200112L
#define _POSIX_CHOWN_RESTRICTED 1
#define _POSIX_CLOCK_SELECTION 200112L
#define _POSIX_CPUTIME 200112L
#define _POSIX_CPUTIME 200112L
#define _POSIX_FSYNC 200112L
#define _POSIX_IPV6 200112L
#define _POSIX_JOB_CONTROL 1
@ -140,7 +140,7 @@ extern "C" {
#define _POSIX_REGEXP 1
#define _POSIX_SAVED_IDS 1
#define _POSIX_SEMAPHORES 200112L
#define _POSIX_SHARED_MEMORY_OBJECTS 200112L
#define _POSIX_SHARED_MEMORY_OBJECTS 200112L
#define _POSIX_SHELL 1
/* #define _POSIX_SPAWN -1 */
#define _POSIX_SPIN_LOCKS 200112L

2
newlib/libc/include/sys/types.h
View File

@ -431,6 +431,7 @@ typedef struct {
/* POSIX Barrier Types */
#if !defined(__CYGWIN__)
#if defined(_POSIX_BARRIERS)
typedef __uint32_t pthread_barrier_t; /* POSIX Barrier Object */
typedef struct {
@ -443,7 +444,6 @@ typedef struct {
/* POSIX Spin Lock Types */
#if !defined (__CYGWIN__)
#if defined(_POSIX_SPIN_LOCKS)
typedef __uint32_t pthread_spinlock_t; /* POSIX Spin Lock Object */
#endif /* defined(_POSIX_SPIN_LOCKS) */