Rename 'kohana' to 'system' to conform to the Kohana filesystem layout. I'm comfortable with us not clearly drawing the distinction about the fact that it's Kohana.

1 files changed, 125 insertions, 0 deletions

diff --git a/system/core/Benchmark.php b/system/core/Benchmark.php
new file mode 100644
index 00000000..ce230f11
--- /dev/null
+++ b/system/core/Benchmark.php
@@ -0,0 +1,125 @@
+<?php defined('SYSPATH') OR die('No direct access allowed.');
+/**
+ * Simple benchmarking.
+ *
+ * $Id: Benchmark.php 4149 2009-04-01 13:32:50Z Shadowhand $
+ *
+ * @package    Core
+ * @author     Kohana Team
+ * @copyright  (c) 2007 Kohana Team
+ * @license    http://kohanaphp.com/license.html
+ */
+final class Benchmark {
+
+	// Benchmark timestamps
+	private static $marks;
+
+	/**
+	 * Set a benchmark start point.
+	 *
+	 * @param   string  benchmark name
+	 * @return  void
+	 */
+	public static function start($name)
+	{
+		if ( ! isset(self::$marks[$name]))
+		{
+			self::$marks[$name] = array();
+		}
+
+		$mark = array
+		(
+			'start'        => microtime(TRUE),
+			'stop'         => FALSE,
+			'memory_start' => self::memory_usage(),
+			'memory_stop'  => FALSE
+		);
+
+		array_unshift(self::$marks[$name], $mark);
+	}
+
+	/**
+	 * Set a benchmark stop point.
+	 *
+	 * @param   string  benchmark name
+	 * @return  void
+	 */
+	public static function stop($name)
+	{
+		if (isset(self::$marks[$name]) AND self::$marks[$name][0]['stop'] === FALSE)
+		{
+			self::$marks[$name][0]['stop'] = microtime(TRUE);
+			self::$marks[$name][0]['memory_stop'] = self::memory_usage();
+		}
+	}
+
+	/**
+	 * Get the elapsed time between a start and stop.
+	 *
+	 * @param   string   benchmark name, TRUE for all
+	 * @param   integer  number of decimal places to count to
+	 * @return  array
+	 */
+	public static function get($name, $decimals = 4)
+	{
+		if ($name === TRUE)
+		{
+			$times = array();
+			$names = array_keys(self::$marks);
+
+			foreach ($names as $name)
+			{
+				// Get each mark recursively
+				$times[$name] = self::get($name, $decimals);
+			}
+
+			// Return the array
+			return $times;
+		}
+
+		if ( ! isset(self::$marks[$name]))
+			return FALSE;
+
+		if (self::$marks[$name][0]['stop'] === FALSE)
+		{
+			// Stop the benchmark to prevent mis-matched results
+			self::stop($name);
+		}
+
+		// Return a string version of the time between the start and stop points
+		// Properly reading a float requires using number_format or sprintf
+		$time = $memory = 0;
+		for ($i = 0; $i < count(self::$marks[$name]); $i++)
+		{
+			$time += self::$marks[$name][$i]['stop'] - self::$marks[$name][$i]['start'];
+			$memory += self::$marks[$name][$i]['memory_stop'] - self::$marks[$name][$i]['memory_start'];
+		}
+
+		return array
+		(
+			'time'   => number_format($time, $decimals),
+			'memory' => $memory,
+			'count'  => count(self::$marks[$name])
+		);
+	}
+
+	/**
+	 * Returns the current memory usage. This is only possible if the
+	 * memory_get_usage function is supported in PHP.
+	 *
+	 * @return  integer
+	 */
+	private static function memory_usage()
+	{
+		static $func;
+
+		if ($func === NULL)
+		{
+			// Test if memory usage can be seen
+			$func = function_exists('memory_get_usage');
+		}
+
+		return $func ? memory_get_usage() : 0;
+	}
+
+} // End Benchmark