lib/watchDog.php

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