我想實現新的屏障功能。如何找到屏障功能的實現?
首先,我想知道默認屏障的實現。 (phtread,LINUX)
而且我發現pthread.h(/ usr/include目錄)
但在這個文件我找不到屏障實現。只有聲明。
1040 /* Functions to handle barriers. */
1041
1042 /* Initialize BARRIER with the attributes in ATTR. The barrier is
1043 opened when COUNT waiters arrived. */
1044 extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier,
1045 __const pthread_barrierattr_t *__restrict
1046 __attr, unsigned int __count)
1047 __THROW __nonnull ((1));
1048
1049 /* Destroy a previously dynamically initialized barrier BARRIER. */
1050 extern int pthread_barrier_destroy (pthread_barrier_t *__barrier)
1051 __THROW __nonnull ((1));
1052
1053 /* Wait on barrier BARRIER. */
1054 extern int pthread_barrier_wait (pthread_barrier_t *__barrier)
1055 __THROW __nonnull ((1));
請教我障礙函數的實現在哪裏。
[PThread Library的源代碼?]的可能的重複(http://stackoverflow.com/questions/3224252/source-code-of-pthread-library) – 2012-03-22 05:06:13