gearman 入门使用笔记

<code>sudo apt-get install software-properties-common
sudo add-apt-repository ppa:gearman-developers/ppa
sudo apt-get update
</code>

<code>sudo apt-get install gearman-job-server libgearman-dev
sudo apt-get install gearman-tools
sudo apt-get upgrade
</code>

<code>sudo apt-get install php-pear
sudo apt-get install php5-dev
sudo pecl install gearman
</code>

<code>sudo vi /etc/php5/cli/php.ini
</code>

<code><?php print gearman_version() . "\n"; ?>
运行方式：php test.php
</code>

<code><?php
    $worker= new GearmanWorker();
    $worker->addServer();
    $worker->addFunction("reverse", "my_reverse_function");
    while ($worker->work());

    function my_reverse_function($job){
      return strrev($job->workload());
    }
?>
</code>

<code><?php
$client=new GearmanClient();
$client->addServer();
print $client->do("reverse","Hello World!");
?>
</code>

<code><?php
$worker= new GearmanWorker();
$worker->addServer();
$worker->addFunction("resize", "my_resize_function");
while ($worker->work());

function my_resize_function($job)
{
  $thumb = new Imagick();
  $thumb->readImageBlob($job->workload());

  if ($thumb->getImageHeight() > 600)
    $thumb->scaleImage(0, 600);
  else if ($thumb->getImageWidth() > 800)
    $thumb->scaleImage(800, 0);

  return $thumb->getImageBlob();
}
?>
</code>

<code>sudo wget http://www.imagemagick.org/download/ImageMagick.tar.gz
tar -xzvf ImageMagick.tar.gz
cd ImageMagick
sudo ./configure -prefix=/usr/local/imagemagick -enable-lzw -with-modules && make && make install
</code>

<code>gearman -f resize < full.jpg > thumb.jpg
</code>

<code>sudo gearmand --daemon
</code>

<code>gearman -w -f ls -- ls -lh
</code>

<code>gearman -f ls < /dev/null
</code>