NAME    [Toc]    [Back]

     BUF_TIMELOCK -- locks a buffer

SYNOPSIS    [Toc]    [Back]

     #include <sys/param.h>
     #include <sys/systm.h>
     #include <sys/uio.h>
     #include <sys/bio.h>
     #include <sys/buf.h>

     int
     BUF_TIMELOCK(struct buf *bp, int locktype, char *wmesg, int catch,
	 int timo);

DESCRIPTION    [Toc]    [Back]

     The BUF_TIMELOCK() function locks the given buffer, and limits the amount
     of time it will sleep to timo and OR's catch into the sleep's priority.
     wmesg is the wmesg used in the sleep.

     Its arguments are:

     bp        The buffer to lock.

     locktype  Flags controlling the type of lock.  See lockmgr(9) for
	       details.

     wmesg     The wmesg used in any sleeps while acquiring the lock.

     catch     Priority OR'd into the sleep's priority.

     timo      The timeout for any sleeps encountered during the lock.

RETURN VALUES    [Toc]    [Back]

     A value of 0 is returned on success.  See lockmgr(9) for details on nonzero
 return values.

SEE ALSO    [Toc]    [Back]

     buf(9), BUF_LOCK(9), BUF_UNLOCK(9), lockmgr(9)

AUTHORS    [Toc]    [Back]

     This man page was written by Chad David <davidc@acns.ab.ca>.


FreeBSD 5.2.1			 July 9, 2001			 FreeBSD 5.2.1