lib/lockfile.h

   1 /* Copyright (c) 2008, 2009 Nicira, Inc.
   2  *
   3  * Licensed under the Apache License, Version 2.0 (the "License");
   4  * you may not use this file except in compliance with the License.
   5  * You may obtain a copy of the License at:
   6  *
   7  *     http://www.apache.org/licenses/LICENSE-2.0
   8  *
   9  * Unless required by applicable law or agreed to in writing, software
  10  * distributed under the License is distributed on an "AS IS" BASIS,
  11  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12  * See the License for the specific language governing permissions and
  13  * limitations under the License.
  14  */
  15
  16 #ifndef LOCKFILE_H
  17 #define LOCKFILE_H 1
  18
  19 struct lockfile;
  20
  21 char *lockfile_name(const char *file);
  22 int lockfile_lock(const char *file, struct lockfile **);
  23 void lockfile_unlock(struct lockfile *);
  24 void lockfile_postfork(void);
  25
  26 #endif /* lib/lockfile.h */