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<?php |
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/** |
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* @author Jenner <[email protected]> |
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* @blog http://www.huyanping.cn |
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* @license https://opensource.org/licenses/MIT MIT |
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* @datetime: 2015/11/24 16:29 |
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*/ |
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namespace Jenner\SimpleFork\Queue; |
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class Pipe |
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{ |
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/** |
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* @var resource |
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*/ |
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protected $read; |
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/** |
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* @var resource |
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*/ |
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protected $write; |
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/** |
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* @var string |
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*/ |
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protected $filename; |
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/** |
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* @var bool |
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*/ |
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protected $block; |
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/** |
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* @param string $filename fifo filename |
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* @param int $mode |
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* @param bool $block if blocking |
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*/ |
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public function __construct($filename = '/tmp/simple-fork.pipe', $mode = 0666, $block = false) |
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{ |
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if (!file_exists($filename) && !posix_mkfifo($filename, $mode)) { |
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throw new \RuntimeException('create pipe failed'); |
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} |
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if (filetype($filename) != 'fifo') { |
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throw new \RuntimeException('file exists and it is not a fifo file'); |
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} |
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$this->filename = $filename; |
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$this->block = $block; |
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} |
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public function setBlock($block = true) |
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{ |
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if (is_resource($this->read)) { |
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$set = stream_set_blocking($this->read, $block); |
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if (!$set) { |
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throw new \RuntimeException('stream_set_blocking failed'); |
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} |
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} |
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if (is_resource($this->write)) { |
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$set = stream_set_blocking($this->write, $block); |
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if (!$set) { |
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throw new \RuntimeException('stream_set_blocking failed'); |
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} |
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} |
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$this->block = $block; |
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} |
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/** |
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* if the stream is blocking, you would better set the value of size, |
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* it will not return until the data size is equal to the value of param size |
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* |
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* @param int $size |
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* @return string |
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*/ |
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9 |
View Code Duplication |
public function read($size = 1024) |
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{ |
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if (!is_resource($this->read)) { |
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$this->read = fopen($this->filename, 'r+'); |
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if (!is_resource($this->read)) { |
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throw new \RuntimeException('open file failed'); |
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} |
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if (!$this->block) { |
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$set = stream_set_blocking($this->read, false); |
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if (!$set) { |
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throw new \RuntimeException('stream_set_blocking failed'); |
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} |
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} |
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} |
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return fread($this->read, $size); |
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} |
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/** |
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* @param $message |
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* @return int |
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*/ |
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View Code Duplication |
public function write($message) |
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{ |
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if (!is_resource($this->write)) { |
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$this->write = fopen($this->filename, 'w+'); |
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if (!is_resource($this->write)) { |
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throw new \RuntimeException('open file failed'); |
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} |
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if (!$this->block) { |
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$set = stream_set_blocking($this->write, false); |
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if (!$set) { |
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throw new \RuntimeException('stream_set_blocking failed'); |
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} |
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} |
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} |
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return fwrite($this->write, $message); |
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} |
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/** |
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* |
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*/ |
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public function __destruct() |
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{ |
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$this->close(); |
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} |
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/** |
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* |
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*/ |
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public function close() |
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{ |
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if (is_resource($this->read)) { |
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fclose($this->read); |
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} |
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if (is_resource($this->write)) { |
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fclose($this->write); |
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} |
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} |
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public function remove() |
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{ |
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return unlink($this->filename); |
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} |
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} |
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huyanping /
simple-fork-php
Loading history...
Duplicated code is one of the most pungent code smells. If you need to duplicate the same code in three or more different places, we strongly encourage you to look into extracting the code into a single class or operation.
You can also find more detailed suggestions in the “Code” section of your repository.