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Session::Lock::Sybase(3) User Contributed Perl Documentation Session::Lock::Sybase(3)
NAME
Apache::Session::Lock::Sybase - Provides mutual exclusion using Sybase
SYNOPSIS
use Apache::Session::Lock::Sybase;
my $locker = new Apache::Session::Lock::Sybase;
$locker->acquire_read_lock($ref);
$locker->acquire_write_lock($ref);
$locker->release_read_lock($ref);
$locker->release_write_lock($ref);
$locker->release_all_locks($ref);
DESCRIPTION
Apache::Session::Lock::Sybase fulfills the locking interface of Apache::Session. Mutual exclusion is achieved through the use of Sybase's
sp_getapplock and sp_releaseapplock functions. Sybase does not support the notion of read and write locks, so this module only supports
exclusive locks. When you request a shared read lock, it is instead promoted to an exclusive write lock.
CONFIGURATION
The module must know how to connect to your MySQL database to acquire locks. You must provide a datasource name, a user name, and a
password. These options are passed in the usual Apache::Session style, and are very similar to the options for
Apache::Session::Store::Sybase. Example:
tie %hash, 'Apache::Session::Sybase', $id, {
LockDataSource => 'dbi:sybase:database',
LockUserName => 'database_user',
LockPassword => 'K00l'
};
Instead, you may pass in an already opened DBI handle to your database.
tie %hash, 'Apache::Session::Sybase', $id, {
LockHandle => $dbh
};
AUTHOR
This module was written by Oliver Maul <oli@42.nu>.
SEE ALSO
Apache::Session
perl v5.12.1 2007-10-02 Session::Lock::Sybase(3)