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
⟨davidc@acns.ab.ca⟩.