X-Git-Url: https://git.wh0rd.org/?a=blobdiff_plain;f=update_daemon2.php;h=c8534af06c7db56327a099010f28d597440126f3;hb=8292d05b7c9723bc91ccdf92f6acc5e46f58ce6c;hp=650b101ddcc8b6498d09d15552261d34d26348b2;hpb=6a69e61ffbd1fe8ff348adc84fe32c7b580c9e75;p=tt-rss.git

diff --git a/update_daemon2.php b/update_daemon2.php
old mode 100644
new mode 100755
index 650b101d..c8534af0
--- a/update_daemon2.php
+++ b/update_daemon2.php
@@ -1,64 +1,286 @@
-#!/usr/bin/php
+#!/usr/bin/env php
 <?php
-	// This is an experimental multiprocess update daemon
-	// It consists of the master server (this file) and
-	// client batch script (update_daemon2_client.php) which
-	// should only be run by the server process
+	set_include_path(dirname(__FILE__) ."/include" . PATH_SEPARATOR .
+		get_include_path());
 
 	declare(ticks = 1);
+	chdir(dirname(__FILE__));
+
+	define('DISABLE_SESSIONS', true);
+
+	require_once "version.php";
+
+	if (strpos(VERSION, ".99") !== false || getenv('DAEMON_XDEBUG')) {
+		define('DAEMON_EXTENDED_DEBUG', true);
+	}
 
-	require_once "config.php";
 	require_once "functions.php";
+	require_once "rssfuncs.php";
+	require_once "sanity_check.php";
+	require_once "config.php";
+	require_once "db.php";
+	require_once "db-prefs.php";
 
+	// defaults
+	define('PURGE_INTERVAL', 3600); // seconds
+	define('MAX_CHILD_RUNTIME', 600); // seconds
 	define('MAX_JOBS', 2);
-	define('CLIENT_PROCESS', './update_daemon2_client.php SRV_RUN_OK');
-	define('SPAWN_INTERVAL', DAEMON_SLEEP_INTERVAL);
+	define('SPAWN_INTERVAL', DAEMON_SLEEP_INTERVAL); // seconds
+
+	if (!function_exists('pcntl_fork')) {
+		die("error: This script requires PHP compiled with PCNTL module.\n");
+	}
+
+	$master_handlers_installed = false;
+
+	$children = array();
+	$ctimes = array();
 
-	$running_jobs = 0;
 	$last_checkpoint = -1;
 
+	function reap_children() {
+		global $children;
+		global $ctimes;
+
+		$tmp = array();
+
+		foreach ($children as $pid) {
+			if (pcntl_waitpid($pid, $status, WNOHANG) != $pid) {
+
+				if (file_is_locked("update_daemon-$pid.lock")) {
+					array_push($tmp, $pid);
+				} else {
+					_debug("[reap_children] child $pid seems active but lockfile is unlocked.");
+					unset($ctimes[$pid]);
+
+				}
+			} else {
+				_debug("[reap_children] child $pid reaped.");
+				unset($ctimes[$pid]);
+			}
+		}
+
+		$children = $tmp;
+
+		return count($tmp);
+	}
+
+	function check_ctimes() {
+		global $ctimes;
+
+		foreach (array_keys($ctimes) as $pid) {
+			$started = $ctimes[$pid];
+
+			if (time() - $started > MAX_CHILD_RUNTIME) {
+				_debug("[MASTER] child process $pid seems to be stuck, aborting...");
+				posix_kill($pid, SIGKILL);
+			}
+		}
+	}
+
 	function sigchld_handler($signal) {
-		global $running_jobs;
-		if ($running_jobs > 0) $running_jobs--;
-		print posix_getpid() . ": SIGCHLD received, jobs left: $running_jobs\n";
+		$running_jobs = reap_children();
+
+		_debug("[SIGCHLD] jobs left: $running_jobs");
+
 		pcntl_waitpid(-1, $status, WNOHANG);
 	}
 
+	function shutdown($caller_pid) {
+		if ($caller_pid == posix_getpid()) {
+			if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock")) {
+				_debug("removing lockfile (master)...");
+				unlink(LOCK_DIRECTORY . "/update_daemon.lock");
+			}
+		}
+	}
+
+	function task_shutdown() {
+		$pid = posix_getpid();
+
+		if (file_exists(LOCK_DIRECTORY . "/update_daemon-$pid.lock")) {
+			_debug("removing lockfile ($pid)...");
+			unlink(LOCK_DIRECTORY . "/update_daemon-$pid.lock");
+		}
+	}
+
 	function sigint_handler() {
-		unlink(LOCK_DIRECTORY . "/update_daemon.lock");
-		die("Received SIGINT. Exiting.\n");
+		_debug("[MASTER] SIG_INT received.\n");
+		shutdown(posix_getpid());
+		die;
+	}
+
+	function task_sigint_handler() {
+		_debug("[TASK] SIG_INT received.\n");
+		task_shutdown();
+		die;
 	}
 
 	pcntl_signal(SIGCHLD, 'sigchld_handler');
-	pcntl_signal(SIGINT, 'sigint_handler');
 
+	$longopts = array("log:",
+			"tasks:",
+			"interval",
+			"quiet",
+			"help");
+
+	$options = getopt("", $longopts);
+
+	if (isset($options["help"]) ) {
+		print "Tiny Tiny RSS update daemon.\n\n";
+		print "Options:\n";
+		print "  --log FILE           - log messages to FILE\n";
+		print "  --tasks N            - amount of update tasks to spawn\n";
+		print "                         default: " . MAX_JOBS . "\n";
+		print "  --interval N         - task spawn interval\n";
+		print "                         default: " . SPAWN_INTERVAL . " seconds.\n";
+		print "  --quiet              - don't output messages to stdout\n";
+		return;
+	}
+
+	define('QUIET', isset($options['quiet']));
+
+	if (isset($options["tasks"])) {
+		_debug("Set to spawn " . $options["tasks"] . " children.");
+		$max_jobs = $option["tasks"];
+	} else {
+		$max_jobs = MAX_JOBS;
+	}
+
+	if (isset($options["interval"])) {
+		_debug("Spawn interval: " . $options["interval"] . " seconds.");
+		$spawn_interval = $option["interval"];
+	} else {
+		$spawn_interval = SPAWN_INTERVAL;
+	}
+
+	if (isset($options["log"])) {
+		_debug("Logging to " . $options["log"]);
+		define('LOGFILE', $options["log"]);
+	}
+
+	if (file_is_locked("update_daemon.lock")) {
+		die("error: Can't create lockfile. ".
+			"Maybe another daemon is already running.\n");
+	}
+
+	// Try to lock a file in order to avoid concurrent update.
 	$lock_handle = make_lockfile("update_daemon.lock");
 
 	if (!$lock_handle) {
-		die("error: Can't create lockfile ($lock_filename). ".
+		die("error: Can't create lockfile. ".
 			"Maybe another daemon is already running.\n");
 	}
 
+	// Testing database connection.
+	// It is unnecessary to start the fork loop if database is not ok.
+	$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
+
+	if (!init_connection($link)) return;
+
+	db_close($link);
+
 	while (true) {
 
-		$next_spawn = $last_checkpoint + SPAWN_INTERVAL - time();
+		// Since sleep is interupted by SIGCHLD, we need another way to
+		// respect the spawn interval
+		$next_spawn = $last_checkpoint + $spawn_interval - time();
+
+		if ($next_spawn % 60 == 0) {
+			$running_jobs = count($children);
+			_debug("[MASTER] active jobs: $running_jobs, next spawn at $next_spawn sec.");
+		}
 
-		print "[MASTER] active jobs: $running_jobs, next spawn at $next_spawn sec\n";
+		if ($last_checkpoint + $spawn_interval < time()) {
 
-		if ($last_checkpoint + SPAWN_INTERVAL < time()) {
+			check_ctimes();
+			reap_children();
 
-			for ($j = $running_jobs; $j < MAX_JOBS; $j++) {
-				print "[MASTER] spawning client $j...";
+			for ($j = count($children); $j < $max_jobs; $j++) {
 				$pid = pcntl_fork();
 				if ($pid == -1) {
 					die("fork failed!\n");
 				} else if ($pid) {
-					$running_jobs++;
-					print "OK [$running_jobs]\n";
+
+					if (!$master_handlers_installed) {
+						_debug("[MASTER] installing shutdown handlers");
+						pcntl_signal(SIGINT, 'sigint_handler');
+						register_shutdown_function('shutdown', posix_getpid());
+						$master_handlers_installed = true;
+					}
+
+					_debug("[MASTER] spawned client $j [PID:$pid]...");
+					array_push($children, $pid);
+					$ctimes[$pid] = time();
 				} else {
 					pcntl_signal(SIGCHLD, SIG_IGN);
-					pcntl_signal(SIGINT, SIG_DFL);
-					passthru(CLIENT_PROCESS);
+					pcntl_signal(SIGINT, 'task_sigint_handler');
+
+					register_shutdown_function('task_shutdown');
+
+					$my_pid = posix_getpid();
+					$lock_filename = "update_daemon-$my_pid.lock";
+
+					$lock_handle = make_lockfile($lock_filename);
+
+					if (!$lock_handle) {
+						die("error: Can't create lockfile ($lock_filename). ".
+						"Maybe another daemon is already running.\n");
+					}
+
+					// ****** Updating RSS code *******
+					// Only run in fork process.
+
+					$start_timestamp = time();
+
+					$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
+
+					if (!init_connection($link)) return;
+
+					// We disable stamp file, since it is of no use in a multiprocess update.
+					// not really, tho for the time being -fox
+					if (!make_stampfile('update_daemon.stamp')) {
+						die("error: unable to create stampfile\n");
+					}
+
+					// Call to the feed batch update function
+					// or regenerate feedbrowser cache
+
+					$nf = 0;
+
+					if (rand(0,100) > 30) {
+						_debug("Waiting before update..");
+						sleep(rand(5,15));
+						$nf = update_daemon_common($link);
+					} else {
+						$count = update_feedbrowser_cache($link);
+						_debug("Feedbrowser updated, $count feeds processed.");
+
+						purge_orphans($link, true);
+
+						$rc = cleanup_tags($link, 14, 50000);
+
+						_debug("Cleaned $rc cached tags.");
+
+						global $pluginhost;
+						$pluginhost->run_hooks($pluginhost::HOOK_UPDATE_TASK, "hook_update_task", $op);
+					}
+
+					_debug("Elapsed time: " . (time() - $start_timestamp) . " second(s)");
+
+					if ($nf > 0) {
+						_debug("Feeds processed: $nf; feeds/minute: " . sprintf("%.2d", $nf/((time()-$start_timestamp)/60)));
+					}
+
+					db_close($link);
+
+					// We are in a fork.
+					// We wait a little before exiting to avoid to be faster than our parent process.
+					sleep(1);
+
+					unlink(LOCK_DIRECTORY . "/$lock_filename");
+
+					// We exit in order to avoid fork bombing.
 					exit(0);
 				}
 			}