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[bottlenecks.git] / rubbos / app / httpd-2.0.64 / srclib / apr / locks / unix / thread_cond.c

diff --git a/rubbos/app/httpd-2.0.64/srclib/apr/locks/unix/thread_cond.c b/rubbos/app/httpd-2.0.64/srclib/apr/locks/unix/thread_cond.c
new file mode 100644 (file)
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+++ b/rubbos/app/httpd-2.0.64/srclib/apr/locks/unix/thread_cond.c
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+/* 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 PTHREAD_SETS_ERRNO
+    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_thread_cond_t *)apr_pcalloc(pool,
+                                                sizeof(apr_thread_cond_t));
+
+    if (new_cond == NULL) {
+        return APR_ENOMEM;
+    }
+
+    new_cond->pool = pool;
+    new_cond->cond = (pthread_cond_t *)apr_palloc(pool, 
+                                                  sizeof(pthread_cond_t));
+
+    if (new_cond->cond == NULL) {
+        return APR_ENOMEM;
+    }
+
+    if ((rv = pthread_cond_init(new_cond->cond, NULL))) {
+#ifdef PTHREAD_SETS_ERRNO
+        rv = errno;
+#endif
+        thread_cond_cleanup(new_cond);
+        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 PTHREAD_SETS_ERRNO
+    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;
+    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 PTHREAD_SETS_ERRNO
+    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 PTHREAD_SETS_ERRNO
+    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 PTHREAD_SETS_ERRNO
+    if (rv) {
+        rv = errno;
+    }
+#endif
+    return rv;
+}
+
+APR_DECLARE(apr_status_t) apr_thread_cond_destroy(apr_thread_cond_t *cond)
+{
+    apr_status_t rv;
+    if ((rv = thread_cond_cleanup(cond)) == APR_SUCCESS) {
+        apr_pool_cleanup_kill(cond->pool, cond, thread_cond_cleanup);
+        return APR_SUCCESS;
+    }
+    return rv;
+}
+
+APR_POOL_IMPLEMENT_ACCESSOR(thread_cond)
+
+#endif /* APR_HAS_THREADS */