BUF_LOCK(9) | FreeBSD Kernel Developer's Manual | BUF_LOCK(9) |
NAME
BUF_LOCK — locks a bufferSYNOPSIS
#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.AUTHORS
This manual page was written by <davidc@acns.ab.ca>.July 9, 2001 | FreeBSD |