coda_flock.h

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/* BLURB gpl
 
                           Coda File System
                              Release 6
 
          Copyright (c) 1987-2003 Carnegie Mellon University
                  Additional copyrights listed below
 
This  code  is  distributed "AS IS" without warranty of any kind under
the terms of the GNU General Public Licence Version 2, as shown in the
file  LICENSE.  The  technical and financial  contributors to Coda are
listed in the file CREDITS.
 
                        Additional copyrights
 
#*/
 
#ifndef CODA_FLOCK_H
#define CODA_FLOCK_H
 
#ifdef __cplusplus
extern "C" {
#endif
 
extern int myflock(int fd, int type, int block);
 
#ifdef HAVE_FCNTL_LOCKING
#define MYFLOCK_UN F_UNLCK
#define MYFLOCK_SH F_RDLCK
#define MYFLOCK_EX F_WRLCK
#define MYFLOCK_NB F_SETLK
#define MYFLOCK_BL F_SETLKW
#else /* HAVE_FLOCK_LOCKING */
#define MYFLOCK_UN LOCK_UN
#define MYFLOCK_SH LOCK_SH
#define MYFLOCK_EX LOCK_EX
#define MYFLOCK_NB LOCK_NB
#define MYFLOCK_BL 0
#endif
 
#ifdef __cplusplus
}
#endif
 
#endif