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BUF_TIMELOCK(9FREEBSD) - man page online | system kernel interfaces

Locks a buffer.

Chapter
July 9, 2001
BUF_TIMELOCK(9)                   BSD 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 <@acns.ab.ca>.
BSD July 9, 2001 BSD
This manual Reference Other manuals
BUF_TIMELOCK(9freebsd) referred by BUF_LOCK(9freebsd) | BUF_LOCKFREE(9freebsd) | BUF_LOCKINIT(9freebsd) | BUF_UNLOCK(9freebsd)
refer to buf(9freebsd) | BUF_LOCK(9freebsd) | BUF_UNLOCK(9freebsd) | lockmgr(9freebsd)