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<?php
/*
* This file is part of the DebugBar package.
*
* (c) 2013 Maxime Bouroumeau-Fuseau
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace DebugBar\DataCollector;
/**
* Collects info about memory usage
*/
class MemoryCollector extends DataCollector implements Renderable
{
protected $realUsage = false;
protected $memoryRealStart = 0;
protected $memoryStart = 0;
protected $peakUsage = 0;
protected $precision = 0;
/**
* Set the precision of the 'peak_usage_str' output.
*
* @param int $precision
*/
public function setPrecision($precision)
{
$this->precision = $precision;
}
/**
* Returns whether total allocated memory page size is used instead of actual used memory size
* by the application. See $real_usage parameter on memory_get_peak_usage for details.
*
* @return bool
*/
public function getRealUsage()
{
return $this->realUsage;
}
/**
* Sets whether total allocated memory page size is used instead of actual used memory size
* by the application. See $real_usage parameter on memory_get_peak_usage for details.
*
* @param bool $realUsage
*/
public function setRealUsage($realUsage)
{
$this->realUsage = $realUsage;
}
/**
* Reset memory baseline, to measure multiple requests in a long running process
*
* @return void
*/
public function resetMemoryBaseline()
{
$this->memoryStart = memory_get_usage(false);
$this->memoryRealStart = memory_get_usage(true);
}
/**
* Returns the peak memory usage
*
* @return integer
*/
public function getPeakUsage()
{
return $this->peakUsage - ($this->realUsage ? $this->memoryRealStart : $this->memoryStart);
}
/**
* Updates the peak memory usage value
*/
public function updatePeakUsage()
{
$this->peakUsage = memory_get_peak_usage($this->realUsage);
}
/**
* @return array
*/
public function collect()
{
$this->updatePeakUsage();
return array(
'peak_usage' => $this->getPeakUsage(),
'peak_usage_str' => $this->getDataFormatter()->formatBytes($this->getPeakUsage(), $this->precision)
);
}
/**
* @return string
*/
public function getName()
{
return 'memory';
}
/**
* @return array
*/
public function getWidgets()
{
return array(
"memory" => array(
"icon" => "cogs",
"tooltip" => "Memory Usage",
"map" => "memory.peak_usage_str",
"default" => "'0B'"
)
);
}
}
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