/* Library routines

*

* Porting to Minix 2.0.0

* Author: Giovanni Falzoni <gfalzoni@pointest.com>

*/

#include <sys/cdefs.h>

#include "namespace.h"

#include <lib.h>

#include <sys/types.h>

#include <fcntl.h>

#include <string.h>

#include <errno.h>

#include <unistd.h>

/*

* Name: int flock(int fd, int mode);

* Function: Implements the flock function in Minix.

*/

int flock(int fd, int mode)

{

struct flock lck;

register int retcode;

memset((void *) &lck, 0, sizeof(struct flock));

lck.l_type = mode & ~LOCK_NB;

lck.l_pid = getpid();

if ((retcode = fcntl(fd, mode & LOCK_NB ? F_SETLK : F_SETLKW, &lck)) < 0 && errno == EAGAIN)

errno = EWOULDBLOCK;

return retcode;

}

/** flock.c **/