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Manual Pages  — BUF_LOCK

NAME

BUF_LOCK – locks a buffer

CONTENTS

SYNOPSIS

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

int
BUF_LOCK(struct buf *bp, int locktype);

DESCRIPTION

The BUF_LOCK() function locks the given buffer. If the lock is already held this call will block until it can acquire the lock unless LK_NOWAIT is set.

Its arguments are:
bp
  The buffer to lock.
locktype
  Flags controlling the type of lock. See lockmgr(9) for details.

RETURN VALUES

A value of 0 is returned upon success. See lockmgr(9) for information on non-zero return values.

SEE ALSO

buf(9), BUF_TIMELOCK(9), BUF_UNLOCK(9), lockmgr(9)

AUTHORS

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

BUF_LOCK (9) July 9, 2001

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Please direct any comments about this manual page service to Ben Bullock.

Like a classics radio station whose play list spans decades, Unix simultaneously exhibits its mixed and dated heritage. There's Clash-era graphics interfaces; Beatles-era two-letter command names; and systems programs (for example, ps) whose terse and obscure output was designed for slow teletypes; Bing Crosby-era command editing (# and @ are still the default line editing commands), and Scott Joplin-era core dumps.
— The Unix Haters' handbook