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git.wh0rd.org - tt-rss.git/blob - update_daemon2.php
3 set_include_path(dirname(__FILE__
) ."/include" . PATH_SEPARATOR
.
7 chdir(dirname(__FILE__
));
9 define('DISABLE_SESSIONS', true);
11 require_once "version.php";
13 if (strpos(VERSION
, ".99") !== false ||
getenv('DAEMON_XDEBUG')) {
14 define('DAEMON_EXTENDED_DEBUG', true);
17 require_once "functions.php";
18 require_once "rssfuncs.php";
19 require_once "sanity_check.php";
20 require_once "config.php";
21 require_once "db.php";
22 require_once "db-prefs.php";
23 require_once "errorhandler.php";
26 define('PURGE_INTERVAL', 3600); // seconds
27 define('MAX_CHILD_RUNTIME', 600); // seconds
28 define('MAX_JOBS', 2);
29 define('SPAWN_INTERVAL', DAEMON_SLEEP_INTERVAL
); // seconds
31 if (!function_exists('pcntl_fork')) {
32 die("error: This script requires PHP compiled with PCNTL module.\n");
35 $master_handlers_installed = false;
40 $last_checkpoint = -1;
42 function reap_children() {
48 foreach ($children as $pid) {
49 if (pcntl_waitpid($pid, $status, WNOHANG
) != $pid) {
51 if (file_is_locked("update_daemon-$pid.lock")) {
52 array_push($tmp, $pid);
54 _debug("[reap_children] child $pid seems active but lockfile is unlocked.");
59 _debug("[reap_children] child $pid reaped.");
69 function check_ctimes() {
72 foreach (array_keys($ctimes) as $pid) {
73 $started = $ctimes[$pid];
75 if (time() - $started > MAX_CHILD_RUNTIME
) {
76 _debug("[MASTER] child process $pid seems to be stuck, aborting...");
77 posix_kill($pid, SIGKILL
);
82 function sigchld_handler($signal) {
83 $running_jobs = reap_children();
85 _debug("[SIGCHLD] jobs left: $running_jobs");
87 pcntl_waitpid(-1, $status, WNOHANG
);
90 function shutdown($caller_pid) {
91 if ($caller_pid == posix_getpid()) {
92 if (file_exists(LOCK_DIRECTORY
. "/update_daemon.lock")) {
93 _debug("removing lockfile (master)...");
94 unlink(LOCK_DIRECTORY
. "/update_daemon.lock");
99 function task_shutdown() {
100 $pid = posix_getpid();
102 if (file_exists(LOCK_DIRECTORY
. "/update_daemon-$pid.lock")) {
103 _debug("removing lockfile ($pid)...");
104 unlink(LOCK_DIRECTORY
. "/update_daemon-$pid.lock");
108 function sigint_handler() {
109 _debug("[MASTER] SIG_INT received.\n");
110 shutdown(posix_getpid());
114 function task_sigint_handler() {
115 _debug("[TASK] SIG_INT received.\n");
120 pcntl_signal(SIGCHLD
, 'sigchld_handler');
122 $longopts = array("log:",
128 $options = getopt("", $longopts);
130 if (isset($options["help"]) ) {
131 print "Tiny Tiny RSS update daemon.\n\n";
133 print " --log FILE - log messages to FILE\n";
134 print " --tasks N - amount of update tasks to spawn\n";
135 print " default: " . MAX_JOBS
. "\n";
136 print " --interval N - task spawn interval\n";
137 print " default: " . SPAWN_INTERVAL
. " seconds.\n";
138 print " --quiet - don't output messages to stdout\n";
142 define('QUIET', isset($options['quiet']));
144 if (isset($options["tasks"])) {
145 _debug("Set to spawn " . $options["tasks"] . " children.");
146 $max_jobs = $options["tasks"];
148 $max_jobs = MAX_JOBS
;
151 if (isset($options["interval"])) {
152 _debug("Spawn interval: " . $options["interval"] . " seconds.");
153 $spawn_interval = $options["interval"];
155 $spawn_interval = SPAWN_INTERVAL
;
158 if (isset($options["log"])) {
159 _debug("Logging to " . $options["log"]);
160 define('LOGFILE', $options["log"]);
163 if (file_is_locked("update_daemon.lock")) {
164 die("error: Can't create lockfile. ".
165 "Maybe another daemon is already running.\n");
168 // Try to lock a file in order to avoid concurrent update.
169 $lock_handle = make_lockfile("update_daemon.lock");
172 die("error: Can't create lockfile. ".
173 "Maybe another daemon is already running.\n");
176 // Testing database connection.
177 // It is unnecessary to start the fork loop if database is not ok.
178 $link = db_connect(DB_HOST
, DB_USER
, DB_PASS
, DB_NAME
);
180 if (!init_connection($link)) die("Can't initialize db connection.\n");
182 $schema_version = get_schema_version($link);
188 // Since sleep is interupted by SIGCHLD, we need another way to
189 // respect the spawn interval
190 $next_spawn = $last_checkpoint +
$spawn_interval - time();
192 if ($next_spawn %
60 == 0) {
193 $running_jobs = count($children);
194 _debug("[MASTER] active jobs: $running_jobs, next spawn at $next_spawn sec.");
197 if ($last_checkpoint +
$spawn_interval < time()) {
199 /* Check if schema version changed */
201 $link = db_connect(DB_HOST
, DB_USER
, DB_PASS
, DB_NAME
);
202 if (!init_connection($link)) die("Can't initialize db connection.\n");
203 $test_schema_version = get_schema_version($link);
206 if ($test_schema_version != $schema_version) {
207 echo "Expected schema version: $schema_version, got: $test_schema_version\n";
208 echo "Schema version changed while we were running, bailing out\n";
215 for ($j = count($children); $j < $max_jobs; $j++
) {
218 die("fork failed!\n");
221 if (!$master_handlers_installed) {
222 _debug("[MASTER] installing shutdown handlers");
223 pcntl_signal(SIGINT
, 'sigint_handler');
224 register_shutdown_function('shutdown', posix_getpid());
225 $master_handlers_installed = true;
228 _debug("[MASTER] spawned client $j [PID:$pid]...");
229 array_push($children, $pid);
230 $ctimes[$pid] = time();
232 pcntl_signal(SIGCHLD
, SIG_IGN
);
233 pcntl_signal(SIGINT
, 'task_sigint_handler');
235 register_shutdown_function('task_shutdown');
237 $my_pid = posix_getpid();
238 $lock_filename = "update_daemon-$my_pid.lock";
240 $lock_handle = make_lockfile($lock_filename);
243 die("error: Can't create lockfile ($lock_filename). ".
244 "Maybe another daemon is already running.\n");
247 // ****** Updating RSS code *******
248 // Only run in fork process.
250 $start_timestamp = time();
252 $link = db_connect(DB_HOST
, DB_USER
, DB_PASS
, DB_NAME
);
254 if (!init_connection($link)) return;
256 // We disable stamp file, since it is of no use in a multiprocess update.
257 // not really, tho for the time being -fox
258 if (!make_stampfile('update_daemon.stamp')) {
259 _debug("warning: unable to create stampfile\n");
262 // Call to the feed batch update function
263 // and maybe regenerate feedbrowser cache
267 _debug("Waiting before update [$j]..");
269 $nf = update_daemon_common($link);
271 if (rand(0,100) > 50) {
272 $count = update_feedbrowser_cache($link);
273 _debug("Feedbrowser updated, $count feeds processed.");
275 purge_orphans($link, true);
277 $rc = cleanup_tags($link, 14, 50000);
279 _debug("Cleaned $rc cached tags.");
282 $pluginhost->run_hooks($pluginhost::HOOK_UPDATE_TASK
, "hook_update_task", $op);
285 _debug("Elapsed time: " . (time() - $start_timestamp) . " second(s)");
288 _debug("Feeds processed: $nf");
290 if (time() - $start_timestamp > 0) {
291 _debug("Feeds/minute: " . sprintf("%.2d", $nf/((time()-$start_timestamp)/60)));
298 // We wait a little before exiting to avoid to be faster than our parent process.
301 unlink(LOCK_DIRECTORY
. "/$lock_filename");
303 // We exit in order to avoid fork bombing.
307 $last_checkpoint = time();