<?php
/*
SHMSource.lib, DomCore, the WebAbility(r) Core System
Contains the shared memory access object
(c) 2008-2012 Philippe Thomassigny
This file is part of DomCore
DomCore is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
DomCore is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DomCore. If not, see <http://www.gnu.org/licenses/>.
*/
/* @UML_Box -- Do not edit
|------------------------------------------------------------------|
| SHMSource : Shared memory access |
|------------------------------------------------------------------|
| # SHM : WASHM instance |
|------------------------------------------------------------------|
| + new SHMSource($id: varchar, $SHM: WASHM instance) |
| + isValid() : boolean |
| + getTimestamp() : integer |
| + read() : mixed |
| + write($data: mixed) : void |
| + unlink() : void |
|------------------------------------------------------------------|
|------------------------------------------------------------------|
@End_UML_Box */
class SHMSource extends DataSource
{
protected $SHM;
public function __construct($id, $SHM)
{
parent::__construct($id);
if (self::$debug || $this->localdebug)
$this->doDebug("common/SHMSource->__construct($id)", WADebug::SYSTEM);
$this->SHM = $SHM;
}
public function isValid()
{
return $this->SHM->__isset($this->data);
}
public function getTimeStamp()
{
return $this->SHM->lastwrite($this->data);
}
public function read()
{
return $this->SHM->read($this->data);
}
public function write($data)
{
$this->SHM->write($this->data, $data);
}
public function unlink()
{
$this->SHM->delete($this->data);
}
}
?>
|
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