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<?php |
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/** |
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* Copyright (c) 2011-present Mediasift Ltd |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions |
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* are met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* |
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* * Redistributions in binary form must reproduce the above copyright |
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* notice, this list of conditions and the following disclaimer in |
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* the documentation and/or other materials provided with the |
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* distribution. |
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* |
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* * Neither the names of the copyright holders nor the names of his |
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* contributors may be used to endorse or promote products derived |
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* from this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, |
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER |
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* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT |
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN |
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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* POSSIBILITY OF SUCH DAMAGE. |
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* |
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* @category Libraries |
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* @package Storyplayer/Modules/Screen |
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* @author Stuart Herbert <[email protected]> |
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* @copyright 2011-present Mediasift Ltd www.datasift.com |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @link http://datasift.github.io/storyplayer |
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*/ |
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namespace Storyplayer\SPv2\Modules\Screen; |
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use DataSift\Storyplayer\OsLib; |
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use DataSift\Stone\ObjectLib\BaseObject; |
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use Storyplayer\SPv2\Modules\Exceptions; |
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use Storyplayer\SPv2\Modules\Host; |
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use Storyplayer\SPv2\Modules\Host\HostAwareModule; |
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use Storyplayer\SPv2\Modules\Log; |
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use Storyplayer\SPv2\Modules\Screen; |
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use Storyplayer\SPv2\Modules\Shell; |
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/** |
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* do things with (possibly remote) screen sessions |
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* |
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* @category Libraries |
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* @package Storyplayer/Modules/Screen |
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* @author Stuart Herbert <[email protected]> |
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* @copyright 2011-present Mediasift Ltd www.datasift.com |
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* @license http://www.opensource.org/licenses/bsd-license.php BSD License |
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* @link http://datasift.github.io/storyplayer |
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*/ |
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class UsingScreen extends HostAwareModule |
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{ |
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public function startScreen($sessionName, $commandLine) |
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{ |
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// what are we doing? |
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$log = Log::usingLog()->startAction("start screen session '{$sessionName}' ({$commandLine}) on host '{$this->args[0]}'"); |
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// do we already have this session running on the host? |
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Screen::expectsHost($this->args[0])->screenIsNotRunning($sessionName); |
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// build up our command to run |
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$commandLine = 'screen -L -d -m -S "' . $sessionName . '" bash -c "' . $commandLine . '"'; |
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// run our command |
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// |
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// this creates a detached screen session called $sessionName |
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Shell::onHost($this->args[0])->runCommand($commandLine); |
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// find the PID of the screen session, for future use |
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$sessionDetails = Screen::fromHost($this->args[0])->getScreenSessionDetails($sessionName); |
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// did the process start, or has it already terminated? |
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if (empty($sessionDetails->pid)) { |
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$log->endAction("session failed to start, or command exited quickly"); |
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throw Exceptions::newActionFailedException(__METHOD__, "failed to start session '{$sessionName}'"); |
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} |
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// all done |
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$log->endAction("session running as PID {$sessionDetails->pid}"); |
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} |
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public function stopScreen($sessionName) |
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{ |
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// what are we doing? |
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$log = Log::usingLog()->startAction("stop screen session '{$sessionName}' on host '{$this->args[0]}'"); |
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// get the process details |
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$processDetails = Screen::fromHost($this->args[0])->getScreenSessionDetails($sessionName); |
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// stop the process |
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Host::onHost($this->args[0])->stopProcess($processDetails->pid); |
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// all done |
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$log->endAction(); |
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} |
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public function stopAllScreens() |
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{ |
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// what are we doing? |
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$log = Log::usingLog()->startAction("stop all running screen sessions on host '{$this->args[0]}'"); |
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// get the app details |
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$processes = Screen::fromHost($this->args[0])->getAllScreenSessions(); |
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// stop the process |
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foreach ($processes as $processDetails) { |
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Host::onHost($this->args[0])->stopProcess($processDetails->pid); |
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usingProcessesTable()->removeProcess($this->args[0], $processDetails); |
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} |
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// all done |
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$log->endAction("stopped " . count($processes) . " session(s)"); |
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} |
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} |
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datasift /
storyplayer
