examples/hello_world_forks.php

   1 <?php
   2 function my_cool_callback($requests) {
   3     $requests['HTTP_CONNECTION'] = isset($requests['HTTP_CONNECTION']) ? $requests['HTTP_CONNECTION'] : 'close';
   4
   5     $output = "Hello World! PID: " . getMyPid();
   6     $answer = array('status_code' => '200 OK',
   7                 'connection' => $requests['HTTP_CONNECTION'],
   8                 'content-type' => 'text/html',
   9                 'content-length' => strlen($output),
  10                 'body' => $output);
  11     return $answer;
  12 }
  13
  14 $cntChildren = 0;
  15 $maxChildren = 4;
  16 $startport = 8080;
  17 while( $cntChildren < $maxChildren ) {
  18     $cntChildren++;
  19     $startport++;
  20
  21     $pid = pcntl_fork();
  22     if ($pid == -1) {
  23         echo "Warning: Cannot spawn child process!!!\n";
  24     } elseif($pid) {
  25         // Parent process
  26     } else {
  27         echo '[' . getMyPid() . '] Child process listening on port ' . $startport . "\n";
  28         mistral_init('0.0.0.0', $startport, 5);
  29         mistral_register_callback('my_cool_callback');
  30         mistral_start();
  31     }
  32 }
  33
  34 while(true) {
  35     sleep(1);
  36 }
  37