45 lines
1.3 KiB
PHP
45 lines
1.3 KiB
PHP
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<?php
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/**
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* Provides of semaphore semantics for restricting the number
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* of workers that may be concurrently performing the same task.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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* http://www.gnu.org/copyleft/gpl.html
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*
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* @file
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*/
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/**
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* A default PoolCounter, which provides no locking.
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*/
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class PoolCounterNull extends PoolCounter {
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public function __construct() {
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/* No parameters needed */
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}
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public function acquireForMe() {
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return Status::newGood( PoolCounter::LOCKED );
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}
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public function acquireForAnyone() {
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return Status::newGood( PoolCounter::LOCKED );
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}
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public function release() {
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return Status::newGood( PoolCounter::RELEASED );
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}
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}
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