Name
IPC::SRLock::Sysv - Set/reset locks using semop and shmop
Version
0.1.$Revision: 52 $
Synopsis
use IPC::SRLock;
my $config = { tempdir => q(path_to_tmp_directory), type => q(sysv) };
my $lock_obj = IPC::SRLock->new( $config );Description
Uses System V semaphores to lock access to a shared memory file
Configuration and Environment
This class defines accessors and mutators for these attributes:
- lockfile
-
The key the the semaphore. Defaults to 195_911_405
- mode
-
Mode to create the shared memory file. Defaults to 0666
- num_locks
-
Maximum number of simultaneous locks. Defaults to 100
- shmfile
-
The key to the shared memory file. Defaults to 195_911_405
- size
-
Maximum size of a lock record. Limits the lock key to 255 bytes. Defaults to 300
Subroutines/Methods
_init
Initialise the object
_get_semid
Return the semaphore reference
_get_shmid
Return the shared memory reference
_list
List the contents of the lock table
_reset
Delete a lock from the lock table
_set
Set a lock in the lock table
Diagnostics
None
Dependencies
Incompatibilities
There are no known incompatibilities in this module
Bugs and Limitations
There are no known bugs in this module. Please report problems to the address below. Patches are welcome
Author
Peter Flanigan, <Support at RoxSoft.co.uk>
License and Copyright
Copyright (c) 2008 Peter Flanigan. All rights reserved
This program is free software; you can redistribute it and/or modify it under the same terms as Perl itself. See perlartistic
This program is distributed in the hope that it will be useful, but WITHOUT WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE