BUF_TIMELOCK(9) FreeBSD Kernel Developer's Manual BUF_TIMELOCK(9)
NAME
BUF_TIMELOCK - locks a buffer
SYNOPSIS
#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
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
A value of 0 is returned on success. See lockmgr(9) for details on non-
zero return values.
SEE ALSO
buf(9), BUF_LOCK(9), BUF_UNLOCK(9), lockmgr(9)
AUTHORS
This manual page was written by Chad David <
[email protected]>.
FreeBSD 14.1-RELEASE-p8 July 9, 2001 FreeBSD 14.1-RELEASE-p8