define('DISABLE_SESSIONS', true);
require_once "version.php";
-
- if (strpos(VERSION, ".99") !== false || getenv('DAEMON_XDEBUG')) {
- define('DAEMON_EXTENDED_DEBUG', true);
- }
-
- define('PURGE_INTERVAL', 3600); // seconds
- define('MAX_CHILD_RUNTIME', 600); // seconds
-
+ require_once "autoload.php";
require_once "functions.php";
+ require_once "config.php";
require_once "rssfuncs.php";
+
+ // defaults
+ define_default('PURGE_INTERVAL', 3600); // seconds
+ define_default('MAX_CHILD_RUNTIME', 1800); // seconds
+ define_default('MAX_JOBS', 2);
+ define_default('SPAWN_INTERVAL', DAEMON_SLEEP_INTERVAL); // seconds
+
require_once "sanity_check.php";
- require_once "config.php";
require_once "db.php";
require_once "db-prefs.php";
- define('MAX_JOBS', 2);
- define('SPAWN_INTERVAL', DAEMON_SLEEP_INTERVAL);
-
if (!function_exists('pcntl_fork')) {
die("error: This script requires PHP compiled with PCNTL module.\n");
}
+ $options = getopt("");
+
+ if (!is_array($options)) {
+ die("error: getopt() failed. ".
+ "Most probably you are using PHP CGI to run this script ".
+ "instead of required PHP CLI. Check tt-rss wiki page on updating feeds for ".
+ "additional information.\n");
+ }
+
+
+ $master_handlers_installed = false;
+
$children = array();
$ctimes = array();
pcntl_waitpid(-1, $status, WNOHANG);
}
- function shutdown() {
- if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock"))
- unlink(LOCK_DIRECTORY . "/update_daemon.lock");
+ function shutdown($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"))
+ if (file_exists(LOCK_DIRECTORY . "/update_daemon-$pid.lock")) {
+ _debug("removing lockfile ($pid)...");
unlink(LOCK_DIRECTORY . "/update_daemon-$pid.lock");
+ }
}
function sigint_handler() {
- shutdown();
- die("[SIGINT] removing lockfile and 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("[SIGINT] removing lockfile and exiting.\n");
+ die;
}
pcntl_signal(SIGCHLD, 'sigchld_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 = $options["tasks"];
+ } else {
+ $max_jobs = MAX_JOBS;
+ }
+
+ if (isset($options["interval"])) {
+ _debug("Spawn interval: " . $options["interval"] . " seconds.");
+ $spawn_interval = $options["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");
}
- if (!pcntl_fork()) {
- pcntl_signal(SIGINT, 'sigint_handler');
- register_shutdown_function('shutdown');
-
- // 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. ".
- "Maybe another daemon is already running.\n");
- }
+ // Try to lock a file in order to avoid concurrent update.
+ $lock_handle = make_lockfile("update_daemon.lock");
- while (true) { sleep(100); }
+ if (!$lock_handle) {
+ 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);
+ $schema_version = get_schema_version();
- if (!init_connection($link)) return;
+ if ($schema_version != SCHEMA_VERSION) {
+ die("Schema version is wrong, please upgrade the database.\n");
+ }
- db_close($link);
+ // Protip: children close shared database handle when terminating, it's a bad idea to
+ // do database stuff on main process from now on.
while (true) {
// Since sleep is interupted by SIGCHLD, we need another way to
- // respect the SPAWN_INTERVAL
- $next_spawn = $last_checkpoint + SPAWN_INTERVAL - time();
+ // respect the spawn interval
+ $next_spawn = $last_checkpoint + $spawn_interval - time();
- if ($next_spawn % 10 == 0) {
+ if ($next_spawn % 60 == 0) {
$running_jobs = count($children);
_debug("[MASTER] active jobs: $running_jobs, next spawn at $next_spawn sec.");
}
- if ($last_checkpoint + SPAWN_INTERVAL < time()) {
-
+ if ($last_checkpoint + $spawn_interval < time()) {
check_ctimes();
reap_children();
- for ($j = count($children); $j < MAX_JOBS; $j++) {
+ for ($j = count($children); $j < $max_jobs; $j++) {
$pid = pcntl_fork();
if ($pid == -1) {
die("fork failed!\n");
} else if ($pid) {
+
+ if (!$master_handlers_installed) {
+ _debug("[MASTER] installing shutdown handlers");
+ pcntl_signal(SIGINT, 'sigint_handler');
+ pcntl_signal(SIGTERM, '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();
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);
+ $quiet = (isset($options["quiet"])) ? "--quiet" : "";
+ $log = function_exists("flock") && isset($options['log']) ? '--log '.$options['log'] : '';
- if (!init_connection($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')) {
- print "warning: unable to create stampfile";
- }
-
- // Call to the feed batch update function
- // or regenerate feedbrowser cache
-
- if (rand(0,100) > 30) {
- 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 $rc cached tags.");
-
- _debug("Updating linked feeds...");
- get_linked_feeds($link);
-
- }
-
- _debug("Elapsed time: " . (time() - $start_timestamp) . " second(s)");
+ $my_pid = posix_getpid();
- db_close($link);
+ passthru(PHP_EXECUTABLE . " update.php --daemon-loop $quiet $log --task $j --pidlock $my_pid");
- // We are in a fork.
- // We wait a little before exiting to avoid to be faster than our parent process.
sleep(1);
- unlink(LOCK_DIRECTORY . "/$lock_filename");
-
// We exit in order to avoid fork bombing.
exit(0);
}
-
- // We wait a little time before the next fork, in order to let the first fork
- // mark the feeds it update :
- sleep(1);
}
$last_checkpoint = time();
}