text: /*
   * lock.h - SiriDB Lock.
   *
   * author       : Jeroen van der Heijden
   * email        : jeroen@transceptor.technology
   * copyright    : 2016, Transceptor Technology
   *
   * changes
   *  - initial version, 13-07-2016
   *
   */
  #ifndef LOCK_H_
  #define LOCK_H_
  
  #define LOCK_QUIT_IF_EXIST 1
  
  typedef enum
  {
      LOCK_IS_LOCKED_ERR=-6,
      LOCK_PROCESS_NAME_ERR,
      LOCK_WRITE_ERR,
      LOCK_READ_ERR,
      LOCK_UNLINK_ERR,
      LOCK_MEM_ALLOC_ERR,
      LOCK_REMOVED=0,
      LOCK_NEW,
      LOCK_OVERWRITE
  } lock_t;
  
  lock_t lock_lock(const char * path, int flags);
  lock_t lock_unlock(const char * path);
  const char * lock_str(lock_t rc);
  
  #endif  /* LOCK_H_ */
  