]>
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 define('PURGE_INTERVAL', 3600); // seconds
18 define('MAX_CHILD_RUNTIME', 600); // seconds
20 require_once "functions.php";
21 require_once "rssfuncs.php";
22 require_once "sanity_check.php";
23 require_once "config.php";
24 require_once "db.php";
25 require_once "db-prefs.php";
27 define('MAX_JOBS', 2);
28 define('SPAWN_INTERVAL', DAEMON_SLEEP_INTERVAL
);
30 if (!function_exists('pcntl_fork')) {
31 die("error: This script requires PHP compiled with PCNTL module.\n");
34 $master_handlers_installed = false;
39 $last_checkpoint = -1;
41 function reap_children() {
47 foreach ($children as $pid) {
48 if (pcntl_waitpid($pid, $status, WNOHANG
) != $pid) {
50 if (file_is_locked("update_daemon-$pid.lock")) {
51 array_push($tmp, $pid);
53 _debug("[reap_children] child $pid seems active but lockfile is unlocked.");
58 _debug("[reap_children] child $pid reaped.");
68 function check_ctimes() {
71 foreach (array_keys($ctimes) as $pid) {
72 $started = $ctimes[$pid];
74 if (time() - $started > MAX_CHILD_RUNTIME
) {
75 _debug("[MASTER] child process $pid seems to be stuck, aborting...");
76 posix_kill($pid, SIGKILL
);
81 function sigchld_handler($signal) {
82 $running_jobs = reap_children();
84 _debug("[SIGCHLD] jobs left: $running_jobs");
86 pcntl_waitpid(-1, $status, WNOHANG
);
90 if (file_exists(LOCK_DIRECTORY
. "/update_daemon.lock"))
91 unlink(LOCK_DIRECTORY
. "/update_daemon.lock");
94 function task_shutdown() {
95 $pid = posix_getpid();
97 if (file_exists(LOCK_DIRECTORY
. "/update_daemon-$pid.lock"))
98 unlink(LOCK_DIRECTORY
. "/update_daemon-$pid.lock");
101 function sigint_handler() {
103 die("[SIGINT] removing lockfile and exiting.\n");
106 function task_sigint_handler() {
108 die("[SIGINT] removing lockfile and exiting.\n");
111 pcntl_signal(SIGCHLD
, 'sigchld_handler');
113 if (file_is_locked("update_daemon.lock")) {
114 die("error: Can't create lockfile. ".
115 "Maybe another daemon is already running.\n");
118 // Try to lock a file in order to avoid concurrent update.
119 $lock_handle = make_lockfile("update_daemon.lock");
122 die("error: Can't create lockfile. ".
123 "Maybe another daemon is already running.\n");
126 // Testing database connection.
127 // It is unnecessary to start the fork loop if database is not ok.
128 $link = db_connect(DB_HOST
, DB_USER
, DB_PASS
, DB_NAME
);
130 if (!init_connection($link)) return;
136 // Since sleep is interupted by SIGCHLD, we need another way to
137 // respect the SPAWN_INTERVAL
138 $next_spawn = $last_checkpoint + SPAWN_INTERVAL
- time();
140 if ($next_spawn %
10 == 0) {
141 $running_jobs = count($children);
142 _debug("[MASTER] active jobs: $running_jobs, next spawn at $next_spawn sec.");
145 if ($last_checkpoint + SPAWN_INTERVAL
< time()) {
150 for ($j = count($children); $j < MAX_JOBS
; $j++
) {
153 die("fork failed!\n");
156 if (!$master_handlers_installed) {
157 _debug("[MASTER] installing shutdown handlers");
158 pcntl_signal(SIGINT
, 'sigint_handler');
159 register_shutdown_function('shutdown');
160 $master_handlers_installed = true;
163 _debug("[MASTER] spawned client $j [PID:$pid]...");
164 array_push($children, $pid);
165 $ctimes[$pid] = time();
167 pcntl_signal(SIGCHLD
, SIG_IGN
);
168 pcntl_signal(SIGINT
, 'task_sigint_handler');
170 register_shutdown_function('task_shutdown');
172 $my_pid = posix_getpid();
173 $lock_filename = "update_daemon-$my_pid.lock";
175 $lock_handle = make_lockfile($lock_filename);
178 die("error: Can't create lockfile ($lock_filename). ".
179 "Maybe another daemon is already running.\n");
182 // ****** Updating RSS code *******
183 // Only run in fork process.
185 $start_timestamp = time();
187 $link = db_connect(DB_HOST
, DB_USER
, DB_PASS
, DB_NAME
);
189 if (!init_connection($link)) return;
191 // We disable stamp file, since it is of no use in a multiprocess update.
192 // not really, tho for the time being -fox
193 if (!make_stampfile('update_daemon.stamp')) {
194 print "warning: unable to create stampfile";
197 // Call to the feed batch update function
198 // or regenerate feedbrowser cache
200 if (rand(0,100) > 30) {
201 update_daemon_common($link);
203 $count = update_feedbrowser_cache($link);
204 _debug("Feedbrowser updated, $count feeds processed.");
206 purge_orphans($link, true);
208 $rc = cleanup_tags($link, 14, 50000);
210 _debug("Cleaned $rc cached tags.");
213 $pluginhost->run_hooks($pluginhost::HOOK_UPDATE_TASK
, "hook_update_task", $op);
216 _debug("Elapsed time: " . (time() - $start_timestamp) . " second(s)");
221 // We wait a little before exiting to avoid to be faster than our parent process.
224 unlink(LOCK_DIRECTORY
. "/$lock_filename");
226 // We exit in order to avoid fork bombing.
230 // We wait a little time before the next fork, in order to let the first fork
231 // mark the feeds it update :
234 $last_checkpoint = time();