declare(ticks = 1);
- define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache-daemon');
- define('SIMPLEPIE_CACHE_DIR', '/var/tmp/simplepie-ttrss-cache-daemon');
define('DISABLE_SESSIONS', true);
- define('MAX_JOBS', 2);
-
require_once "version.php";
if (strpos(VERSION, ".99") !== false || getenv('DAEMON_XDEBUG')) {
}
define('PURGE_INTERVAL', 3600); // seconds
+ define('MAX_CHILD_RUNTIME', 600); // seconds
require_once "sanity_check.php";
require_once "config.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");
+ }
+
if (!ENABLE_UPDATE_DAEMON) {
- die("Please enable option ENABLE_UPDATE_DAEMON in config.php\n");
+ die("error: Please enable option ENABLE_UPDATE_DAEMON in config.php\n");
}
require_once "db.php";
require_once "db-prefs.php";
require_once "functions.php";
- require_once "magpierss/rss_fetch.inc";
+ require_once "lib/magpierss/rss_fetch.inc";
error_reporting(DEFAULT_ERROR_LEVEL);
$children = array();
+ $ctimes = array();
$last_checkpoint = -1;
function reap_children() {
global $children;
+ global $ctimes;
$tmp = array();
foreach ($children as $pid) {
if (pcntl_waitpid($pid, $status, WNOHANG) != $pid) {
- array_push($tmp, $pid);
+
+ if (file_is_locked("update_daemon-$pid.lock")) {
+ array_push($tmp, $pid);
+ } else {
+ _debug("[reap_children] child $pid seems active but lockfile is unlocked.");
+ }
} else {
- _debug("[SIGCHLD] child $pid reaped.");
+ _debug("[reap_children] child $pid reaped.");
+ unset($ctimes[$pid]);
}
}
return count($tmp);
}
- function sigalrm_handler() {
- die("[SIGALRM] hang in feed update?\n");
+ 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) {
pcntl_waitpid(-1, $status, WNOHANG);
}
+ function shutdown() {
+ if (file_exists(LOCK_DIRECTORY . "/update_daemon.lock"))
+ unlink(LOCK_DIRECTORY . "/update_daemon.lock");
+ }
+
+ function task_shutdown() {
+ $pid = posix_getpid();
+
+ if (file_exists(LOCK_DIRECTORY . "/update_daemon-$pid.lock"))
+ unlink(LOCK_DIRECTORY . "/update_daemon-$pid.lock");
+ }
+
function sigint_handler() {
- unlink(LOCK_DIRECTORY . "/update_daemon.lock");
+ shutdown();
die("[SIGINT] removing lockfile and exiting.\n");
- }
+ }
+
+ function task_sigint_handler() {
+ task_shutdown();
+ die("[SIGINT] removing lockfile and exiting.\n");
+ }
- pcntl_signal(SIGALRM, 'sigalrm_handler');
pcntl_signal(SIGCHLD, 'sigchld_handler');
if (file_is_locked("update_daemon.lock")) {
if (!pcntl_fork()) {
pcntl_signal(SIGINT, 'sigint_handler');
+ register_shutdown_function('shutdown');
// Try to lock a file in order to avoid concurrent update.
$lock_handle = make_lockfile("update_daemon.lock");
db_close($link);
-
while (true) {
// Since sleep is interupted by SIGCHLD, we need another way to
if ($last_checkpoint + SPAWN_INTERVAL < time()) {
+ check_ctimes();
reap_children();
for ($j = count($children); $j < MAX_JOBS; $j++) {
} else if ($pid) {
_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);
+ 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.
return;
}
- if (DB_TYPE == "pgsql") {
- pg_query("set client_encoding = 'utf-8'");
- pg_set_client_encoding("UNICODE");
- } else {
- if (defined('MYSQL_CHARSET') && MYSQL_CHARSET) {
- db_query($link, "SET NAMES " . MYSQL_CHARSET);
- // db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
- }
- }
+ init_connection($link);
// We disable stamp file, since it is of no use in a multiprocess update.
// not really, tho for the time being -fox
print "warning: unable to create stampfile";
}
- // $last_purge = 0;
-
- // if (time() - $last_purge > PURGE_INTERVAL) {
-
- // FIXME : $last_purge is of no use in a multiprocess update.
- // FIXME : We ALWAYS purge old posts.
- _debug("Purging old posts (random 30 feeds)...");
- global_purge_old_posts($link, true, 30);
-
- // $last_purge = time();
- // }
+ // Call to the feed batch update function
+ // or regenerate feedbrowser cache
- // Call to the feed batch update function
- update_daemon_common($link);
+ if (rand(0,100) > 30) {
+ update_daemon_common($link);
+ } else {
+ $count = update_feedbrowser_cache($link);
+ _debug("Finished, $count feeds processed.");
+ }
_debug("Elapsed time: " . (time() - $start_timestamp) . " second(s)");
// We are in a fork.
// We wait a little before exiting to avoid to be faster than our parent process.
sleep(1);
+
+ unlink(LOCK_DIRECTORY . "/$lock_filename");
+
// We exit in order to avoid fork bombing.
exit(0);
}