Differential D20600 Diff 49134 src/filesystem/PhutilProcessQuery.php

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src/filesystem/PhutilProcessQuery.php

This file was added.

				<?php

				final class PhutilProcessQuery
				extends Phobject {

				private $isOverseer;
				private $instances;

				public function withIsOverseer($is_overseer) {
				$this->isOverseer = $is_overseer;
				return $this;
				}

				public function withInstances(array $instances) {
				$this->instances = $instances;
				return $this;
				}

				public function execute() {
				if (phutil_is_windows()) {
				throw new Exception(
				pht(
				'Querying system processes is not currently supported on '.
				'Windows.'));
				}

				// TODO: See T12827. This formulation likely does not work properly on
				Lint: TODO Comment Inline Actions This comment has a TODO. Lint: TODO Comment: This comment has a TODO.
				// Solaris.
				amckinleyUnsubmitted Not Done Inline Actions lolz amckinley: lolz

				list($processes) = execx('ps -o pid,command -a -x -w -w -w');
				$processes = phutil_split_lines($processes, false);

				$refs = array();
				foreach ($processes as $process) {
				$parts = preg_split('/\s+/', trim($process), 2);
				list($pid, $command) = $parts;

				$ref = id(new PhutilProcessRef())
				->setPID((int)$pid)
				->setCommand($command);

				// If this process is a "phd-daemon" process, mark it as a daemon
				// overseer.
				$is_overseer = (bool)preg_match('/\bphd-daemon\b/', $command);
				$ref->setIsOverseer($is_overseer);

				// If this is an overseer and the command has a "-l" ("Label") argument,
				// the argument contains the "PHABRICATOR_INSTANCE" value for the daemon.
				// Parse it out and annotate the process.
				$instance = null;
				if ($ref->getIsOverseer()) {
				$matches = null;
				if (preg_match('/-l (\S+)/', $command, $matches)) {
				$instance = $matches[1];
				}
				}

				$ref->setInstance($instance);

				$refs[] = $ref;
				}

				if ($this->isOverseer !== null) {
				foreach ($refs as $key => $ref) {
				if ($ref->getIsOverseer() !== $this->isOverseer) {
				unset($refs[$key]);
				}
				}
				}

				if ($this->instances) {
				$instances_map = array_fuse($this->instances);
				foreach ($refs as $key => $ref) {
				if (!isset($instances_map[$ref->getInstance()])) {
				unset($refs[$key]);
				}
				}
				}

				return array_values($refs);
				}

				}