lib/watchDog.php

   1 <?php
   2
   3 class watchDog {
   4         function go()
   5         {
   6                 // my job is to keep daemons running.
   7                 $lhms = new hostManagementServer();
   8                 $lss = new systemServer();
   9                 while(true) {
  10
  11                         if(!$lhms->isRunning()) {
  12                                 startHMS();
  13                         }
  14
  15                         if(!$lss->isRunning()) {
  16                                 startSS();
  17                         }
  18
  19                         sleep(5);
  20                 }
  21         }
  22
  23         function startHMS()
  24         {
  25                 $pf = pcntl_fork();
  26                 if($pf == -1) {
  27                         echo "Failed to fork\n";
  28                 } else if($pf) {
  29                         // parent
  30                 } else {
  31                         // child
  32                         $hms = new hostManagementServer();
  33                         $hms->go();
  34                 }
  35         }
  36
  37         function startSS()
  38         {
  39                 $pf2 = pcntl_fork();
  40                 if($pf2 == -1) {
  41                         echo "Failed to fork\n";
  42                 } else if($pf2) {
  43                         // parent
  44                 } else {
  45                         // child
  46                         $ss = new systemServer();
  47                         $ss->go();
  48                 }
  49         }
  50 }
  51
  52 ?>