AnonymousFox

/home/develito/www/plugins/system/bfnetwork/bfnetwork/bfTimer.php

<?php
/**
 * @package Blue Flame Network (bfNetwork)
 * @copyright Copyright (C) 2011, 2012, 2013, 2014, 2015, 2016 Blue Flame IT Ltd. All rights reserved.
 * @license GNU General Public License version 3 or later
 * @link https://myJoomla.com/
 * @author Phil Taylor / Blue Flame IT Ltd.
 *
 * bfNetwork is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * bfNetwork is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this package.  If not, see http://www.gnu.org/licenses/
 */

/**
 * Some of this taken from Akeeba Backup
 *
 * @copyright Copyright (c)2009 Nicholas K. Dionysopoulos
 * @license GNU GPL version 3 or, at your option, any later version
 */
class bfTimer
{

/**
     * @var int Maximum execution time allowance per step
     */
    private $max_exec_time = NULL;

/**
     * @var int Timestamp of execution start
     */
    public $start_time = NULL;

/**
     * Public constructor, creates the timer object and calculates the execution
     * time limits
     */
    public function __construct()
    {

// Initialize start time
        $this->start_time = $this->microtime_float();

// Get PHP's maximum execution time (our upper limit)
        if (@function_exists('ini_get')) {

$php_max_exec_time = @ini_get("max_execution_time");

if ((!is_numeric($php_max_exec_time)) || ($php_max_exec_time == 0)) {
                // If we have no time limit, set a hard limit of about 10
                // seconds
                // (safe for Apache and IIS timeouts, verbose enough for users)
                $php_max_exec_time = _BF_CONFIG_PHP_MAX_EXEC_TIME;
            }

} else {
            // If ini_get is not available, use a rough default
            $php_max_exec_time = _BF_CONFIG_PHP_MAX_EXEC_TIME;
        }

// Apply an arbitrary correction to counter Decryption load time
        $php_max_exec_time--;
        $php_max_exec_time--;

// Apply bias
        $this->max_exec_time = $php_max_exec_time;
        // Use the most appropriate time limit value

// Overrule EVERYthing above :-) set hard limit
        if (_BF_CONFIG_PHP_MAX_EXEC_TIME_HARD_LIMIT !== NULL) {
            $this->max_exec_time = _BF_CONFIG_PHP_MAX_EXEC_TIME_HARD_LIMIT;
        }

// crappy webhost
        if (ini_get('max_execution_time') < $this->max_exec_time) {
            $this->max_exec_time = ini_get('max_execution_time');
            $this->max_exec_time--;
        }

}

/**
     * @return bfTimer
     */
    public static function getInstance()
    {

static $instance;
        if (!isset($instance)) {
            $instance = new bfTimer();
        }

return $instance;
    }

/**
     * Wake-up function to reset internal timer when we get unserialized
     */
    public function __wakeup()
    {
        // Re-initialize start time on wake-up
        $this->start_time = $this->microtime_float();
    }

/**
     * Gets the number of seconds left, before we hit the "must break" threshold
     *
     * @return float
     */
    public function getTimeLeft()
    {
        return $this->max_exec_time - $this->getRunningTime();
    }

/**
     * Gets the time elapsed since object creation/unserialization, effectively
     * how
     * long Akeeba Engine has been processing data
     *
     * @return float
     */
    public function getRunningTime()
    {
        return $this->microtime_float() - $this->start_time;
    }

/**
     * Returns the current timestamp in decimal seconds
     */
    public function microtime_float()
    {
        list ($usec, $sec) = explode(" ", microtime());

return (( float )$usec + ( float )$sec);
    }

/**
     * Reset the timer.
     * It should only be used in CLI mode!
     */
    public function resetTime()
    {
        $this->start_time = $this->microtime_float();
    }

/**
     * @return int|null|string
     */
    public function getMaxTime()
    {
        return $this->max_exec_time;
    }

/**
     * @return float|int|null
     */
    public function getStartTime()
    {
        return $this->start_time;
    }
}