tags
* with a CSS class of 'profiler'.
*
* @access public
* @param string A label for the time mark
* @return string Mark enclosed in
tags
*/
function mark( $label )
{
$mark = $this->_prefix." $label: ";
$mark .= sprintf('%.3f', $this->getmicrotime() - $this->_start) . ' seconds';
if ( function_exists('memory_get_usage') ) {
$mark .= ', '.sprintf('%0.2f', memory_get_usage() / 1048576 ).' MB';
}
$this->_buffer[] = $mark;
return $mark;
}
/**
* Get the current time.
*
* @access public
* @return float The current time
*/
function getmicrotime()
{
list( $usec, $sec ) = explode( ' ', microtime() );
return ((float)$usec + (float)$sec);
}
/**
* Get information about current memory usage.
*
* @access public
* @return int The memory usage
* @link PHP_MANUAL#memory_get_usage
*/
function getMemory()
{
static $isWin;
if (function_exists( 'memory_get_usage' )) {
return memory_get_usage();
} else {
// Determine if a windows server
if (is_null( $isWin )) {
$isWin = (substr(PHP_OS, 0, 3) == 'WIN');
}
// Initialize variables
$output = array();
$pid = getmypid();
if ($isWin) {
// Windows workaround
@exec( 'tasklist /FI "PID eq ' . $pid . '" /FO LIST', $output );
if (!isset($output[5])) {
$output[5] = null;
}
return substr( $output[5], strpos( $output[5], ':' ) + 1 );
} else {
@exec("ps -o rss -p $pid", $output);
return $output[1] *1024;
}
}
}
/**
* Get all profiler marks.
*
* Returns an array of all marks created since the Profiler object
* was instantiated. Marks are strings as per {@link JProfiler::mark()}.
*
* @access public
* @return array Array of profiler marks
*/
function getBuffer() {
return $this->_buffer;
}
}