1 files changed, 120 insertions, 0 deletions
diff --git a/locks/os2/thread_mutex.c b/locks/os2/thread_mutex.c
new file mode 100644
index 0000000..fea188d
--- /dev/null
+++ b/locks/os2/thread_mutex.c
@@ -0,0 +1,120 @@
+/* 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_general.h"
+#include "apr_lib.h"
+#include "apr_strings.h"
+#include "apr_portable.h"
+#include "apr_arch_thread_mutex.h"
+#include "apr_arch_file_io.h"
+#include <string.h>
+#include <stddef.h>
+
+static apr_status_t thread_mutex_cleanup(void *themutex)
+{
+    apr_thread_mutex_t *mutex = themutex;
+    return apr_thread_mutex_destroy(mutex);
+}
+
+
+
+/* XXX: Need to respect APR_THREAD_MUTEX_[UN]NESTED flags argument
+ *      or return APR_ENOTIMPL!!!
+ */
+APR_DECLARE(apr_status_t) apr_thread_mutex_create(apr_thread_mutex_t **mutex,
+                                                  unsigned int flags,
+                                                  apr_pool_t *pool)
+{
+    apr_thread_mutex_t *new_mutex;
+    ULONG rc;
+
+    new_mutex = (apr_thread_mutex_t *)apr_palloc(pool, sizeof(apr_thread_mutex_t));
+    new_mutex->pool = pool;
+
+    rc = DosCreateMutexSem(NULL, &(new_mutex->hMutex), 0, FALSE);
+    *mutex = new_mutex;
+
+    if (!rc)
+        apr_pool_cleanup_register(pool, new_mutex, thread_mutex_cleanup, apr_pool_cleanup_null);
+
+    return APR_OS2_STATUS(rc);
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_lock(apr_thread_mutex_t *mutex)
+{
+    ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_INDEFINITE_WAIT);
+    return APR_OS2_STATUS(rc);
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_trylock(apr_thread_mutex_t *mutex)
+{
+    ULONG rc = DosRequestMutexSem(mutex->hMutex, SEM_IMMEDIATE_RETURN);
+
+    return (rc == ERROR_TIMEOUT) ? APR_EBUSY : APR_FROM_OS_ERROR(rc);
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_timedlock(apr_thread_mutex_t *mutex,
+                                                 apr_interval_time_t timeout)
+{
+    ULONG rc;
+
+    if (timeout <= 0) {
+        rc = DosRequestMutexSem(mutex->hMutex, SEM_IMMEDIATE_RETURN);
+    }
+    else {
+        rc = DosRequestMutexSem(mutex->hMutex, apr_time_as_msec(timeout));
+    }
+
+    return (rc == ERROR_TIMEOUT) ? APR_TIMEUP : APR_FROM_OS_ERROR(rc);
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_unlock(apr_thread_mutex_t *mutex)
+{
+    ULONG rc = DosReleaseMutexSem(mutex->hMutex);
+    return APR_OS2_STATUS(rc);
+}
+
+
+
+APR_DECLARE(apr_status_t) apr_thread_mutex_destroy(apr_thread_mutex_t *mutex)
+{
+    ULONG rc;
+
+    if (mutex->hMutex == 0)
+        return APR_SUCCESS;
+
+    while (DosReleaseMutexSem(mutex->hMutex) == 0);
+
+    rc = DosCloseMutexSem(mutex->hMutex);
+
+    if (!rc) {
+        mutex->hMutex = 0;
+        return APR_SUCCESS;
+    }
+
+    return APR_FROM_OS_ERROR(rc);
+}
+
+APR_POOL_IMPLEMENT_ACCESSOR(thread_mutex)
+