- * @return bool Is the memory limit reached?
- * @throws HTTPException\InternalServerErrorException
- */
- public function isMinMemoryReached()
- {
- $min_memory = $this->config->get('system', 'min_memory', 0);
- if ($min_memory == 0) {
- return false;
- }
-
- if (!is_readable('/proc/meminfo')) {
- return false;
- }
-
- $memdata = explode("\n", file_get_contents('/proc/meminfo'));
-
- $meminfo = [];
- foreach ($memdata as $line) {
- $data = explode(':', $line);
- if (count($data) != 2) {
- continue;
- }
- list($key, $val) = $data;
- $meminfo[$key] = (int)trim(str_replace('kB', '', $val));
- $meminfo[$key] = (int)($meminfo[$key] / 1024);
- }
-
- if (!isset($meminfo['MemFree'])) {
- return false;
- }
-
- $free = $meminfo['MemFree'];
-
- $reached = ($free < $min_memory);
-
- if ($reached) {
- $this->logger->debug('Minimal memory reached.', ['free' => $free, 'memtotal' => $meminfo['MemTotal'], 'limit' => $min_memory]);
- }
-
- return $reached;
- }
-
- /**
- * @brief Checks if the maximum load is reached
- *
- * @return bool Is the load reached?
- * @throws HTTPException\InternalServerErrorException
- */
- public function isMaxLoadReached()
- {
- if ($this->mode->isBackend()) {
- $process = 'backend';
- $maxsysload = intval($this->config->get('system', 'maxloadavg'));
- if ($maxsysload < 1) {
- $maxsysload = 50;
- }
- } else {
- $process = 'frontend';
- $maxsysload = intval($this->config->get('system', 'maxloadavg_frontend'));
- if ($maxsysload < 1) {
- $maxsysload = 50;
- }
- }
-
- $load = Core\System::currentLoad();
- if ($load) {
- if (intval($load) > $maxsysload) {
- $this->logger->info('system load for process too high.', ['load' => $load, 'process' => $process, 'maxsysload' => $maxsysload]);
- return true;
- }
- }
- return false;
- }
-
- /**
- * Executes a child process with 'proc_open'
- *
- * @param string $command The command to execute
- * @param array $args Arguments to pass to the command ( [ 'key' => value, 'key2' => value2, ... ]
- *
- * @throws HTTPException\InternalServerErrorException