gpsee_flock.h

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/**
 *  @file	gpsee_flock.h		Cross-platform flock header for GPSEE.
 *  @author	Wes Garland, PageMail, Inc., wes@page.ca
 *  @version	$Id: gpsee_flock.h,v 1.2 2009/07/31 16:46:04 wes Exp $
 *  @date	Feb 2009
 */
 
#if !defined(HAVE_FLOCK) && !defined(NO_GPSEE_FLOCK)
# define GPSEE_LOCK_SH         0x01            /* shared file lock */
# define GPSEE_LOCK_EX         0x02            /* exclusive file lock */
# define GPSEE_LOCK_NB         0x04            /* don't block when locking */
# define GPSEE_LOCK_UN         0x08            /* unlock file */

# ifdef  __cplusplus
extern "C" 
{
# endif
int gpsee_flock(int fd, int lockmode);
# ifdef __cplusplus
}
# endif
#else /* HAVE_FLOCK */
# include <sys/file.h>	/* might be flock.h under linux? */
# define gpsee_flock(fd, lockmode) flock(fd, lockmode) 
# define GPSEE_LOCK_SH LOCK_SH
# define GPSEE_LOCK_EX LOCK_EX
# define GPSEE_LOCK_NB LOCK_NB
# define GPSEE_LOCK_UN LOCK_UN
#endif