commit e7c2fffa16eccecfd43d99516751a43776f5f609
author Yabin Cui <yabinc@google.com> Thu Nov 05 22:06:09 2015 -0800
committer Yabin Cui <yabinc@google.com> Mon Nov 16 14:02:26 2015 -0800
tree bceec6b32ce1159456b2b0bb7ea0ea320d0970cc
parent 004fead6bc55d1e65b4fb9ca1ac36646b99e5fdd

Implement pthread barrier.

Bug: 24341262
Change-Id: I5472549e5d7545c1c3f0bef78235f545557b9630

libc/include/pthread.h

diff --git a/libc/include/pthread.h b/libc/include/pthread.h
index 260ae5b..48b2bca 100644
--- a/libc/include/pthread.h
+++ b/libc/include/pthread.h
@@ -96,6 +96,18 @@
 
 #define PTHREAD_ONCE_INIT 0
 
+typedef struct {
+#if defined(__LP64__)
+  int64_t __private[4];
+#else
+  int32_t __private[8];
+#endif
+} pthread_barrier_t;
+
+typedef int pthread_barrierattr_t;
+
+#define PTHREAD_BARRIER_SERIAL_THREAD -1
+
 #if defined(__LP64__)
 #define PTHREAD_STACK_MIN (4 * PAGE_SIZE)
 #else
@@ -130,7 +142,7 @@
 int pthread_attr_setschedpolicy(pthread_attr_t*, int) __nonnull((1));
 int pthread_attr_setscope(pthread_attr_t*, int) __nonnull((1));
 int pthread_attr_setstack(pthread_attr_t*, void*, size_t) __nonnull((1));
-int pthread_attr_setstacksize(pthread_attr_t*, size_t stack_size) __nonnull((1));
+int pthread_attr_setstacksize(pthread_attr_t*, size_t) __nonnull((1));
 
 int pthread_condattr_destroy(pthread_condattr_t*) __nonnull((1));
 int pthread_condattr_getclock(const pthread_condattr_t*, clockid_t*) __nonnull((1, 2));
@@ -205,9 +217,18 @@
 int pthread_rwlock_timedwrlock(pthread_rwlock_t*, const struct timespec*) __nonnull((1, 2));
 int pthread_rwlock_tryrdlock(pthread_rwlock_t*) __nonnull((1));
 int pthread_rwlock_trywrlock(pthread_rwlock_t*) __nonnull((1));
-int pthread_rwlock_unlock(pthread_rwlock_t *rwlock) __nonnull((1));
+int pthread_rwlock_unlock(pthread_rwlock_t *) __nonnull((1));
 int pthread_rwlock_wrlock(pthread_rwlock_t*) __nonnull((1));
 
+int pthread_barrierattr_init(pthread_barrierattr_t* attr) __nonnull((1));
+int pthread_barrierattr_destroy(pthread_barrierattr_t* attr) __nonnull((1));
+int pthread_barrierattr_getpshared(pthread_barrierattr_t* attr, int* pshared) __nonnull((1, 2));
+int pthread_barrierattr_setpshared(pthread_barrierattr_t* attr, int pshared) __nonnull((1));
+
+int pthread_barrier_init(pthread_barrier_t*, const pthread_barrierattr_t*, unsigned) __nonnull((1));
+int pthread_barrier_destroy(pthread_barrier_t*) __nonnull((1));
+int pthread_barrier_wait(pthread_barrier_t*) __nonnull((1));
+
 pthread_t pthread_self(void) __pure2;
 
 int pthread_setname_np(pthread_t, const char*) __nonnull((2));