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wlock
Langue: en
Version: 19 March 1998 (mandriva - 01/05/08)
Section: 1 (Commandes utilisateur)
NAME
wlock - Tests or sets a file with POSIX-fcntl() write-locksSYNOPSIS
wlock [ -s [-a seconds ]] [ -t] [ -v] [ -b begin ] [ -l length ] fileor
wlock [ -s ] [ -v] [ -b begin ] [ -l length ] file program [ arguments ]
DESCRIPTION
This program sets or tests advisory locks conforming to POSIX fcntl() call. You may specify optionaly a program to start it within the lock context.OPTIONS
These options are accepted. If a program is provided as argument wlock will start it.- -s
- Sets the lock.
- -t
- Test the lock (default).
- -v
- Verbose output.
- -b begin
- The lock starts at byte #begin.
- -l length
- The lock will be length bytes long.
- -a seconds
- The lock is active for seconds (default=86400).
RETURN VALUES
- 0
- In test mode this means that the file is locked. In set mode it indicates the succesful creation of the lockfile
- 1
- The file is not locked. Only available in testmode.
- 2
- Some error has occurred.
AUTHOR
wlock has been written by Ulli Horlacher (framstag@belwue.de>.SEE ALSO
sendfile(1).Contenus ©2006-2024 Benjamin Poulain
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