includes/profiler/ProfilerSimpleTrace.php

   1 <?php
   2 /**
   3  * @file
   4  * @ingroup Profiler
   5  */
   6
   7 /**
   8  * Execution trace
   9  * @todo document methods (?)
  10  * @ingroup Profiler
  11  */
  12 class ProfilerSimpleTrace extends ProfilerSimple {
  13         var $trace = "Beginning trace: \n";
  14         var $memory = 0;
  15
  16         function profileIn( $functionname ) {
  17                 parent::profileIn( $functionname );
  18                 $this->trace .= "         " . sprintf("%6.1f",$this->memoryDiff()) .
  19                                 str_repeat( " ", count($this->mWorkStack)) . " > " . $functionname . "\n";
  20         }
  21
  22         function profileOut($functionname) {
  23                 global $wgDebugFunctionEntry;
  24
  25                 if ( $wgDebugFunctionEntry ) {
  26                         $this->debug(str_repeat(' ', count($this->mWorkStack) - 1).'Exiting '.$functionname."\n");
  27                 }
  28
  29                 list( $ofname, /* $ocount */ , $ortime ) = array_pop( $this->mWorkStack );
  30
  31                 if ( !$ofname ) {
  32                         $this->trace .= "Profiling error: $functionname\n";
  33                 } else {
  34                         if ( $functionname == 'close' ) {
  35                                 $message = "Profile section ended by close(): {$ofname}";
  36                                 $functionname = $ofname;
  37                                 $this->trace .= $message . "\n";
  38                         }
  39                         elseif ( $ofname != $functionname ) {
  40                                 $this->trace .= "Profiling error: in({$ofname}), out($functionname)";
  41                         }
  42                         $elapsedreal = $this->getTime() - $ortime;
  43                         $this->trace .= sprintf( "%03.6f %6.1f", $elapsedreal, $this->memoryDiff() ) .
  44                                         str_repeat(" ", count( $this->mWorkStack ) + 1 ) . " < " . $functionname . "\n";
  45                 }
  46         }
  47
  48         function memoryDiff() {
  49                 $diff = memory_get_usage() - $this->memory;
  50                 $this->memory = memory_get_usage();
  51                 return $diff / 1024;
  52         }
  53
  54         function logData() {
  55                 print "<!-- \n {$this->trace} \n -->";
  56         }
  57 }