php多線程實現多進程 跨平台的一例代碼

define('DIR_PHP_EXEC', 'php'); define('DIR_MAIN_EXEC', __FILE__); define('DIR_TMP', '/tmp'); require_once('my_process.php'); class pp extends my_process_base { public function run($param = null) { for ($i = 0; $i < 4; $i++) { echo "111 $param\n"; sleep(1); } } } init_my_process(); $obj = $GLOBALS['gal_obj_process_m']; if ($obj->is_main()) { $obj->run_task('pp', 'a'); $obj->run_task('pp', 'b'); $obj->run_task('pp', 'c'); $obj->run_task('pp', 'd'); //$obj->run_task('pp', 'b'); $obj->set_max_run(10); $obj->run(); }?> 複製代碼 2，進程管理類 /** * @copyright 2007 movivi * @author 徐智 * * $Id: getPage.php 11 2007-09-21 02:15:01Z fred $ * modify by bbs.it-home.org */ if (!defined('DIR_PHP_EXEC')) define('DIR_PHP_EXEC', 'php'); //if (!defined('DIR_MAIN_EXEC')) define('DIR_MAIN_EXEC', ''); if (!defined('DIR_TMP')) define('DIR_TMP', ''); /********/ /* 初始化 */ define('CMD_MAIN_PROCESS_KEY', 'main_process_key'); define('CMD_CHILD_PROCESS_NAME', 'child_process_name'); define('CMD_CHILD_PROCESS_PARAM', 'child_process_param'); function init_my_process() { $GLOBALS['gal_obj_cmd'] = new my_cmd_argv(); $key = $GLOBALS['gal_obj_cmd']->get_value(CMD_MAIN_PROCESS_KEY); $key = $key === false ? '' : $key; $GLOBALS['gal_obj_process_m'] = new my_process_m($key); if (!$GLOBALS['gal_obj_process_m']->is_main()) $GLOBALS['gal_obj_process_m']->run() ; } /** * php多進程類 * * 你需要從這個對象繼承，然後實現你自己的run處理 */ abstract class my_process_base { public function __construct($auto_run=true, $name='') { } public function __destruct() { echo "@end\n"; } abstract public function run($param = null); } class my_cmd_argv { private $cmd_argv = array(); public function __construct() { $argv = $_SERVER['argv']; for ($i = 1; $i < count($argv); $i++) { $cmd = explode('=', $argv[$i]); $this->cmd_argv[$cmd[0]] = isset($cmd[1]) ? $cmd[1] : ''; } } public function get_key($key) { return isset($this->cmd_argv[$key]); } public function get_value($key) { return isset($this->cmd_argv[$key]) ? $this->cmd_argv[$key] : false; } } /** * php多進程管理類 * 可以在PHP中實現多進程處理，只限在控制台方式使用 * 當前的訊號實現機制採用檔案方式 * */ class my_process_m { /** * @var array $task_list * 進程列表 */ private $task_list = array(); private $lock_list = array(); private $lock = null; private $is_main = false; private $max_run = 3600000; private function release_lock($key = null) { $lock = &$this->lock_list; if (!is_null($key)) { $key = md5($this->build_lock_id($key)); if (isset($lock[$key])) { if (is_resource($lock[$key][0])) fclose($lock[$key][0]); unlink($lock[$key][1]); unset($lock[$key]); } return true; } foreach ($lock as $k => $h) { if (is_resource($h)) fclose($h); unset($lock[$k]); } return true; } private function release_task($key = null) { $task = &$this->task_list; if (!is_null($key) && isset($task[$key])) { if (is_resource($task[$key])) pclose($task[$key]); unset($task[$key]); } else { foreach ($task as $k => $h) { if (is_resource($h)) pclose($h); unset($task[$k]); } } return true; } private function build_lock_id($key) { return DIR_TMP . DIRECTORY_SEPARATOR . $key . '_sem.lock'; } protected function run_child_process() { $class = $GLOBALS['gal_obj_cmd']->get_value(CMD_CHILD_PROCESS_NAME); $param = $GLOBALS['gal_obj_cmd']->get_value(CMD_CHILD_PROCESS_PARAM); $param = $param == '' ? null : unserialize(base64_decode(trim($param))); $obj = new $class(); $obj->run($param); $this->task_list[] = $obj; } public function __construct($lock='') { if ($lock === '') { $this->is_main = true; $key = md5(uniqid()) . '_main.my_process'; $lock = array($key, $this->get($key)); } else { $this->is_main = false; $lock = array($lock, 0); } $this->lock = $lock; } public function __destruct() { $this->release_lock(); $this->release_task(); } /** * 停止所有進程 * */ public function stop_all() { } /** * 是否是主進程 * */ public function is_main() { return $this->is_main; } /** * 是不是已經存在一個活動訊號 * * @param string $key * @return bool */ public function exist($key) { return file_exists($this->build_lock_id($key)); } /** * 擷取一個訊號 * * @param string $key * @param int $max_acquire 最大請求阻塞數量 * @return mix 如果成功返回一個訊號ID * */ public function get($key, $max_acquire=5) { $fn = $this->build_lock_id($key); if (isset($this->lock_list[md5($fn)])) return false; $id = fopen($fn, 'a+'); if ($id) $this->lock_list[md5($fn)] = array($id, $fn); return $id; } /** * 釋放一個訊號 * * @param string $key * @return bool 如果成功返回一個訊號true * */ public function remove($key) { return $this->release_lock($key); } /** * 擷取一個訊號 * * @param string $id 訊號ID * @param bool $block 是否阻塞 */ public function acquire($id, $block=false) { if ($block) { return flock($id, LOCK_EX); } else { return flock($id, LOCK_EX + LOCK_NB); } } /** * 釋放一個訊號 * */ public function release($id) { flock($id, LOCK_UN); } public function run_task($process_name, $param=null) { $this->task_list[] = popen(DIR_PHP_EXEC . ' -f ' . DIR_MAIN_EXEC . ' -- ' . CMD_CHILD_PROCESS_NAME . '=' . $process_name . ' ' . CMD_CHILD_PROCESS_PARAM . '="' . base64_encode(serialize($param)) . '" ' . CMD_MAIN_PROCESS_KEY . '="' . $this->lock[0] . '" ', 'r'); } public function run($auto_run = true) { if ($this->is_main) { $ps = &$this->task_list; $max_run = &$this->max_run; $id = 0; do { //echo "process-------------: \n"; $c = 0; foreach ($ps as $k => $h) { $c++; $msg = fread($h, 8000); if (substr($msg, -5, 4) === '@end') { echo "end process:[$k][$id] echo \n{$msg} \n"; $this->release_task($k); } else { echo "process:[$k][$id] echo \n{$msg} \n"; } } sleep(1); } while ($auto_run && $id++ < $max_run && $c > 0); } else { $this->run_child_process(); } } public function set_max_run($max=1000) { $this->max_run = $max; } } ?> 複製代碼

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