swoole message queue

 

<?php
/**
 * Scenes:
 * Monitor the status queue order form of communication
 * A process announced two other processes scramble to queue
 */

// set the main process name 
echo 'main process the above mentioned id:' posix_getpid ().. PHP_EOL ;
cli_set_process_title('php_main');

// 1, for changing the child process monitor data 
$ Process1 = new new \ Swoole \ Process ( function (\ Swoole \ Process $ Process ) {
 @     cli_set_process_title ( 'php_child'); 
    $ Process -> name ( 'php_child1' );
     $ PDO = new new \ the PDO ( 'MySQL: Host = MySQL; dbname = Test', 'the root', 'csh.aptx4869 #' );

    the while ( to true ) {
         $ Statement = $ PDO -> Query ( 'SELECT * WHERE is_pay from `order` = 0. 1 and is_notice Order by ID desc =' );
         $ Data = $ Statement -> FETCH (the PDO :: FETCH_ASSOC) ;
         IF ( $ data ) {
             // posted to the message queue data 
            $ Process -> Push ( 'php_child1 transmission'. $ data [ 'CLIENT_NAME'] 'paid'. );
             $ PDO -> Exec ( ' `Update Order WHERE is_notice. 1 SET = `ID = '. $ Data [ID' ' ]);
        }
        sleep(3);
    }
} , To false , SOCK_STREAM, to true );
 // start message queue as interprocess communication 
$ Process1 -> useQueue (2 );
 echo 'child process ID. 1:'. $ Process1 . -> Start () value is PHP_EOL ;

// 2, this sub-process for sending messages 
$ Process2 = new new \ Swoole \ Process ( function (\ Swoole \ Process $ Process ) {
     $ Process -> name ( 'php_child2' );
     the while ( to true ) {
         // from the queue extracting data 
        $ the orderInfo = $ Process -> POP ();
         IF ( $ the orderInfo ) {
             echo  $ the orderInfo ;
             echo 'php_child2 send mail'. value is PHP_EOL ;
        }
        sleep(3);
    }
} , To false , SOCK_STREAM, to true );
 $ Process2 -> useQueue (2 );
 echo 'child process ID 2:'. $ Process2 -> Start (). Value is PHP_EOL ;

// 3, this sub-process for sending messages 
$ process3 = new new \ Swoole \ Process ( function (\ Swoole \ Process $ Process ) {
     $ Process -> name ( 'php_child3' );
     the while ( to true ) {
         // from the queue extracting data 
        $ the orderInfo = $ Process -> POP ();
         IF ( $ the orderInfo ) {
             echo  $ the orderInfo ;
             echo 'php_child3 send mail'. value is PHP_EOL ;
        }
        sleep(3);
    }
} , To false , SOCK_STREAM, to true );
 $ process3 -> useQueue (2 );
 echo 'child process ID. 3:'. $ Process3 -> Start (). Value is PHP_EOL ;

while (true) {
    sleep(3);
}

//\Swoole\Process::wait();
// Process when using as a parent to monitor, manage to create a child process, the parent must register the signal SIGCHLD execution wait to exit the process, otherwise it will become a zombie process when the child process exits 
Swoole \ Process :: Signal (SIGCHLD, function ( $ signo ) {
     // to false non-blocking mode 
    the while ( $ RET = \ Swoole \ Process :: the wait ( to false )) {
         var_dump ( $ RET );
    }
});