1 files changed, 37 insertions, 0 deletions
diff --git a/file_io/os2/flock.c b/file_io/os2/flock.c
new file mode 100644
index 0000000..ec94022
--- /dev/null
+++ b/file_io/os2/flock.c
@@ -0,0 +1,37 @@
+/* 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_arch_file_io.h"
+
+APR_DECLARE(apr_status_t) apr_file_lock(apr_file_t *thefile, int type)
+{
+    FILELOCK lockrange = { 0, 0x7fffffff };
+    ULONG rc;
+
+    rc = DosSetFileLocks(thefile->filedes, NULL, &lockrange,
+                         (type & APR_FLOCK_NONBLOCK) ? 0 : (ULONG)-1,
+                         (type & APR_FLOCK_TYPEMASK) == APR_FLOCK_SHARED);
+    return APR_FROM_OS_ERROR(rc);
+}
+
+APR_DECLARE(apr_status_t) apr_file_unlock(apr_file_t *thefile)
+{
+    FILELOCK unlockrange = { 0, 0x7fffffff };
+    ULONG rc;
+
+    rc = DosSetFileLocks(thefile->filedes, &unlockrange, NULL, 0, 0);
+    return APR_FROM_OS_ERROR(rc);
+}