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<?php |
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/** |
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* This file has functions dealing with server config. |
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* |
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* @package ElkArte Forum |
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* @copyright ElkArte Forum contributors |
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* @license BSD http://opensource.org/licenses/BSD-3-Clause (see accompanying LICENSE.txt file) |
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* |
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* This file contains code covered by: |
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* copyright: 2011 Simple Machines (http://www.simplemachines.org) |
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* |
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* @version 2.0 dev |
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* |
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*/ |
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/** |
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* Returns the current server load for nix systems |
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* |
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* - Used to enable / disable features based on current system overhead |
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*/ |
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function detectServerLoad() |
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{ |
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if (stristr(PHP_OS, 'win')) |
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{ |
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return false; |
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} |
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2 |
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$cores = detectServerCores(); |
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// The internal function should always be available |
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if (function_exists('sys_getloadavg') && sys_getloadavg() !== false) |
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{ |
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$sys_load = sys_getloadavg(); |
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return $sys_load[0] / $cores; |
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} |
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// Maybe someone has a custom compile |
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else |
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{ |
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$load_average = @file_get_contents('/proc/loadavg'); |
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if (!empty($load_average) && preg_match('~^([^ ]+?) ([^ ]+?) ([^ ]+)~', $load_average, $matches) != 0) |
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{ |
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return (float) $matches[1] / $cores; |
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} |
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if (($load_average = @`uptime`) !== null && preg_match('~load average[s]?: (\d+\.\d+), (\d+\.\d+), (\d+\.\d+)~i', $load_average, $matches) != 0) |
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{ |
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return (float) $matches[1] / $cores; |
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} |
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return false; |
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} |
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} |
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/** |
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* Determines the number of cpu cores available |
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* |
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* - Used to normalize server load based on cores |
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* |
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* @return int |
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*/ |
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function detectServerCores() |
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{ |
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if (strpos(PHP_OS_FAMILY, 'Win') === 0) |
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{ |
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$cores = getenv("NUMBER_OF_PROCESSORS") + 0; |
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return $cores ?? 1; |
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} |
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$cores = @file_get_contents('/proc/cpuinfo'); |
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if (!empty($cores)) |
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{ |
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$cores = preg_match_all('~^physical id~m', $cores); |
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if (!empty($cores)) |
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{ |
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return $cores; |
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} |
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} |
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return 1; |
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} |
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/** |
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* Return the total disk used and remaining free space. Returns array as |
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* 10.34MB, 110MB (used, free) |
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* |
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* @return bool|array |
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*/ |
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function detectDiskUsage() |
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{ |
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global $boarddir; |
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$diskTotal = disk_total_space($boarddir); |
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$diskFree = disk_free_space($boarddir); |
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if ($diskFree === false || $diskTotal === false) |
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{ |
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return false; |
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} |
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return [thousands_format($diskTotal - $diskFree), thousands_format($diskFree)]; |
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} |
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/** |
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* Determine the number of days the server has been running since last reboot. *nix only |
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* |
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* @return bool|int |
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*/ |
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function detectUpTime() |
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{ |
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if (strpos(PHP_OS_FAMILY, 'Win') === 0) |
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{ |
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return false; |
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} |
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$upTime = trim(@file_get_contents('/proc/uptime')); |
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if (!empty($upTime)) |
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{ |
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$upTime = (int) preg_replace('~\.\d+~', '', $upTime); |
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return floor($upTime / 86400); |
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} |
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return 0; |
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} |
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elkarte /
Elkarte
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