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-rw-r--r--3rdparty/libuv/src/unix/pthread-fixes.c104
1 files changed, 104 insertions, 0 deletions
diff --git a/3rdparty/libuv/src/unix/pthread-fixes.c b/3rdparty/libuv/src/unix/pthread-fixes.c
new file mode 100644
index 00000000000..3a71eb5aae7
--- /dev/null
+++ b/3rdparty/libuv/src/unix/pthread-fixes.c
@@ -0,0 +1,104 @@
+/* Copyright (c) 2013, Sony Mobile Communications AB
+ * Copyright (c) 2012, Google Inc.
+ All rights reserved.
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are
+ met:
+
+ * Redistributions of source code must retain the above copyright
+ notice, this list of conditions and the following disclaimer.
+ * Redistributions in binary form must reproduce the above
+ copyright notice, this list of conditions and the following disclaimer
+ in the documentation and/or other materials provided with the
+ distribution.
+ * Neither the name of Google Inc. nor the names of its
+ contributors may be used to endorse or promote products derived from
+ this software without specific prior written permission.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+/* Android versions < 4.1 have a broken pthread_sigmask.
+ * Note that this block of code must come before any inclusion of
+ * pthread-fixes.h so that the real pthread_sigmask can be referenced.
+ * */
+#include <errno.h>
+#include <pthread.h>
+#include <signal.h>
+
+int uv__pthread_sigmask(int how, const sigset_t* set, sigset_t* oset) {
+ static int workaround;
+
+ if (workaround) {
+ return sigprocmask(how, set, oset);
+ } else if (pthread_sigmask(how, set, oset)) {
+ if (errno == EINVAL && sigprocmask(how, set, oset) == 0) {
+ workaround = 1;
+ return 0;
+ } else {
+ return -1;
+ }
+ } else {
+ return 0;
+ }
+}
+
+/*Android doesn't provide pthread_barrier_t for now.*/
+#ifndef PTHREAD_BARRIER_SERIAL_THREAD
+
+#include "pthread-fixes.h"
+
+int pthread_barrier_init(pthread_barrier_t* barrier,
+ const void* barrier_attr,
+ unsigned count) {
+ barrier->count = count;
+ pthread_mutex_init(&barrier->mutex, NULL);
+ pthread_cond_init(&barrier->cond, NULL);
+ return 0;
+}
+
+int pthread_barrier_wait(pthread_barrier_t* barrier) {
+ /* Lock the mutex*/
+ pthread_mutex_lock(&barrier->mutex);
+ /* Decrement the count. If this is the first thread to reach 0, wake up
+ waiters, unlock the mutex, then return PTHREAD_BARRIER_SERIAL_THREAD.*/
+ if (--barrier->count == 0) {
+ /* First thread to reach the barrier */
+ pthread_cond_broadcast(&barrier->cond);
+ pthread_mutex_unlock(&barrier->mutex);
+ return PTHREAD_BARRIER_SERIAL_THREAD;
+ }
+ /* Otherwise, wait for other threads until the count reaches 0, then
+ return 0 to indicate this is not the first thread.*/
+ do {
+ pthread_cond_wait(&barrier->cond, &barrier->mutex);
+ } while (barrier->count > 0);
+
+ pthread_mutex_unlock(&barrier->mutex);
+ return 0;
+}
+
+int pthread_barrier_destroy(pthread_barrier_t *barrier) {
+ barrier->count = 0;
+ pthread_cond_destroy(&barrier->cond);
+ pthread_mutex_destroy(&barrier->mutex);
+ return 0;
+}
+
+#endif /* defined(PTHREAD_BARRIER_SERIAL_THREAD) */
+
+int pthread_yield(void) {
+ sched_yield();
+ return 0;
+}