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-rw-r--r--locks/unix/thread_cond.c145
1 files changed, 145 insertions, 0 deletions
diff --git a/locks/unix/thread_cond.c b/locks/unix/thread_cond.c
new file mode 100644
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--- /dev/null
+++ b/locks/unix/thread_cond.c
@@ -0,0 +1,145 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "apr.h"
+
+#if APR_HAS_THREADS
+
+#include "apr_arch_thread_mutex.h"
+#include "apr_arch_thread_cond.h"
+
+static apr_status_t thread_cond_cleanup(void *data)
+{
+ apr_thread_cond_t *cond = (apr_thread_cond_t *)data;
+ apr_status_t rv;
+
+ rv = pthread_cond_destroy(&cond->cond);
+#ifdef HAVE_ZOS_PTHREADS
+ if (rv) {
+ rv = errno;
+ }
+#endif
+ return rv;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_cond_create(apr_thread_cond_t **cond,
+ apr_pool_t *pool)
+{
+ apr_thread_cond_t *new_cond;
+ apr_status_t rv;
+
+ new_cond = apr_palloc(pool, sizeof(apr_thread_cond_t));
+
+ new_cond->pool = pool;
+
+ if ((rv = pthread_cond_init(&new_cond->cond, NULL))) {
+#ifdef HAVE_ZOS_PTHREADS
+ rv = errno;
+#endif
+ return rv;
+ }
+
+ apr_pool_cleanup_register(new_cond->pool,
+ (void *)new_cond, thread_cond_cleanup,
+ apr_pool_cleanup_null);
+
+ *cond = new_cond;
+ return APR_SUCCESS;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_cond_wait(apr_thread_cond_t *cond,
+ apr_thread_mutex_t *mutex)
+{
+ apr_status_t rv;
+
+ rv = pthread_cond_wait(&cond->cond, &mutex->mutex);
+#ifdef HAVE_ZOS_PTHREADS
+ if (rv) {
+ rv = errno;
+ }
+#endif
+ return rv;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_cond_timedwait(apr_thread_cond_t *cond,
+ apr_thread_mutex_t *mutex,
+ apr_interval_time_t timeout)
+{
+ apr_status_t rv;
+ if (timeout < 0) {
+ rv = pthread_cond_wait(&cond->cond, &mutex->mutex);
+#ifdef HAVE_ZOS_PTHREADS
+ if (rv) {
+ rv = errno;
+ }
+#endif
+ }
+ else {
+ apr_time_t then;
+ struct timespec abstime;
+
+ then = apr_time_now() + timeout;
+ abstime.tv_sec = apr_time_sec(then);
+ abstime.tv_nsec = apr_time_usec(then) * 1000; /* nanoseconds */
+
+ rv = pthread_cond_timedwait(&cond->cond, &mutex->mutex, &abstime);
+#ifdef HAVE_ZOS_PTHREADS
+ if (rv) {
+ rv = errno;
+ }
+#endif
+ if (ETIMEDOUT == rv) {
+ return APR_TIMEUP;
+ }
+ }
+ return rv;
+}
+
+
+APR_DECLARE(apr_status_t) apr_thread_cond_signal(apr_thread_cond_t *cond)
+{
+ apr_status_t rv;
+
+ rv = pthread_cond_signal(&cond->cond);
+#ifdef HAVE_ZOS_PTHREADS
+ if (rv) {
+ rv = errno;
+ }
+#endif
+ return rv;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_cond_broadcast(apr_thread_cond_t *cond)
+{
+ apr_status_t rv;
+
+ rv = pthread_cond_broadcast(&cond->cond);
+#ifdef HAVE_ZOS_PTHREADS
+ if (rv) {
+ rv = errno;
+ }
+#endif
+ return rv;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_cond_destroy(apr_thread_cond_t *cond)
+{
+ return apr_pool_cleanup_run(cond->pool, cond, thread_cond_cleanup);
+}
+
+APR_POOL_IMPLEMENT_ACCESSOR(thread_cond)
+
+#endif /* APR_HAS_THREADS */