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BUF_TIMELOCK (9) | Kernel routines | Unix Manual Pages | :man▋

NAME

BUF_TIMELOCK - "locks a buffer"

CONTENTS

Synopsis
Description
Return Values
See Also
Authors

SYNOPSIS


.In sys/param.h
.In sys/systm.h
.In sys/uio.h
.In sys/bio.h
.In 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

 
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