3 // This is an experimental multiprocess update daemon.
4 // Some configurable variable may be found below.
6 // define('DEFAULT_ERROR_LEVEL', E_ALL);
7 define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE
);
11 define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache-daemon');
12 define('SIMPLEPIE_CACHE_DIR', '/var/tmp/simplepie-ttrss-cache-daemon');
13 define('DISABLE_SESSIONS', true);
15 define('MAX_JOBS', 2);
17 require_once "version.php";
19 if (strpos(VERSION
, ".99") !== false ||
getenv('DAEMON_XDEBUG')) {
20 define('DAEMON_EXTENDED_DEBUG', true);
23 define('PURGE_INTERVAL', 3600); // seconds
25 require_once "sanity_check.php";
26 require_once "config.php";
28 define('SPAWN_INTERVAL', DAEMON_SLEEP_INTERVAL
);
30 if (!ENABLE_UPDATE_DAEMON
) {
31 die("Please enable option ENABLE_UPDATE_DAEMON in config.php\n");
34 require_once "db.php";
35 require_once "db-prefs.php";
36 require_once "functions.php";
37 require_once "magpierss/rss_fetch.inc";
39 error_reporting(DEFAULT_ERROR_LEVEL
);
43 $last_checkpoint = -1;
45 function reap_children() {
50 foreach ($children as $pid) {
51 if (pcntl_waitpid($pid, $status, WNOHANG
) != $pid) {
52 array_push($tmp, $pid);
54 _debug("[SIGCHLD] child $pid reaped.");
63 function sigalrm_handler() {
64 die("[SIGALRM] hang in feed update?\n");
67 function sigchld_handler($signal) {
68 $running_jobs = reap_children();
70 _debug("[SIGCHLD] jobs left: $running_jobs");
72 pcntl_waitpid(-1, $status, WNOHANG
);
75 function sigint_handler() {
76 unlink(LOCK_DIRECTORY
. "/update_daemon.lock");
77 die("[SIGINT] removing lockfile and exiting.\n");
80 pcntl_signal(SIGALRM
, 'sigalrm_handler');
81 pcntl_signal(SIGCHLD
, 'sigchld_handler');
83 if (file_is_locked("update_daemon.lock")) {
84 die("error: Can't create lockfile. ".
85 "Maybe another daemon is already running.\n");
89 pcntl_signal(SIGINT
, 'sigint_handler');
91 $lock_handle = make_lockfile("update_daemon.lock");
94 die("error: Can't create lockfile. ".
95 "Maybe another daemon is already running.\n");
98 while (true) { sleep(100); }
101 // Testing database connection.
102 // It is unnecessary to start the fork loop if database is not ok.
103 $link = db_connect(DB_HOST
, DB_USER
, DB_PASS
, DB_NAME
);
106 if (DB_TYPE
== "mysql") {
109 // PG seems to display its own errors just fine by default.
118 $next_spawn = $last_checkpoint + SPAWN_INTERVAL
- time();
120 if ($next_spawn %
10 == 0) {
121 $running_jobs = count($children);
122 _debug("[MASTER] active jobs: $running_jobs, next spawn at $next_spawn sec.");
125 if ($last_checkpoint + SPAWN_INTERVAL
< time()) {
129 for ($j = count($children); $j < MAX_JOBS
; $j++
) {
132 die("fork failed!\n");
134 _debug("[MASTER] spawned client $j [PID:$pid]...");
135 array_push($children, $pid);
137 pcntl_signal(SIGCHLD
, SIG_IGN
);
138 pcntl_signal(SIGINT
, SIG_DFL
);
140 // ****** Updating RSS code *******
141 // Only run in fork process.
143 $start_timestamp = time();
145 $link = db_connect(DB_HOST
, DB_USER
, DB_PASS
, DB_NAME
);
148 if (DB_TYPE
== "mysql") {
151 // PG seems to display its own errors just fine by default.
155 if (DB_TYPE
== "pgsql") {
156 pg_query("set client_encoding = 'utf-8'");
157 pg_set_client_encoding("UNICODE");
159 if (defined('MYSQL_CHARSET') && MYSQL_CHARSET
) {
160 db_query($link, "SET NAMES " . MYSQL_CHARSET
);
161 // db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
165 // We disable stamp file, since it is of no use in a multiprocess update.
166 // not really, tho for the time being -fox
167 if (!make_stampfile('update_daemon.stamp')) {
168 print "warning: unable to create stampfile";
173 // if (time() - $last_purge > PURGE_INTERVAL) {
175 // FIXME : $last_purge is of no use in a multiprocess update.
176 // FIXME : We ALWAYS purge old posts.
177 _debug("Purging old posts (random 30 feeds)...");
178 global_purge_old_posts($link, true, 30);
180 // $last_purge = time();
183 // Process all other feeds using last_updated and interval parameters
185 $random_qpart = sql_random_function();
187 if (DAEMON_UPDATE_LOGIN_LIMIT
> 0) {
188 if (DB_TYPE
== "pgsql") {
189 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT
." days'";
191 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT
." DAY)";
194 $login_thresh_qpart = "";
197 if (DB_TYPE
== "pgsql") {
198 $update_limit_qpart = "AND ((
199 ttrss_feeds.update_interval = 0
200 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_user_prefs.value || ' minutes') AS INTERVAL)
202 ttrss_feeds.update_interval > 0
203 AND ttrss_feeds.last_updated < NOW() - CAST((ttrss_feeds.update_interval || ' minutes') AS INTERVAL)
206 $update_limit_qpart = "AND ((
207 ttrss_feeds.update_interval = 0
208 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL CONVERT(ttrss_user_prefs.value, SIGNED INTEGER) MINUTE)
210 ttrss_feeds.update_interval > 0
211 AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ttrss_feeds.update_interval MINUTE)
216 if (DB_TYPE
== "pgsql") {
217 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
219 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
222 $result = db_query($link, "SELECT ttrss_feeds.feed_url,ttrss_feeds.id, ttrss_feeds.owner_uid,
223 SUBSTRING(ttrss_feeds.last_updated,1,19) AS last_updated,
224 ttrss_feeds.update_interval
226 ttrss_feeds, ttrss_users, ttrss_user_prefs
228 ttrss_feeds.owner_uid = ttrss_users.id
229 AND ttrss_users.id = ttrss_user_prefs.owner_uid
230 AND ttrss_user_prefs.pref_name = 'DEFAULT_UPDATE_INTERVAL'
231 $login_thresh_qpart $update_limit_qpart
232 $updstart_thresh_qpart
233 ORDER BY $random_qpart DESC LIMIT " . DAEMON_FEED_LIMIT
);
235 $user_prefs_cache = array();
237 _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
239 // Here is a little cache magic in order to minimize risk of double feed updates.
240 $feeds_to_update = array();
241 while ($line = db_fetch_assoc($result)) {
242 $feeds_to_update[$line['id']] = $line;
245 // We update the feed last update started date before anything else.
246 // There is no lag due to feed contents downloads
247 // It prevent an other process to update the same feed.
248 $feed_ids = array_keys($feeds_to_update);
250 db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
251 WHERE id IN (%s)", implode(',', $feed_ids)));
254 while ($line = array_pop($feeds_to_update)) {
256 _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
259 update_rss_feed($link, $line["feed_url"], $line["id"], true);
262 sleep(1); // prevent flood (FIXME make this an option?)
265 if (DAEMON_SENDS_DIGESTS
) send_headlines_digests($link);
267 _debug("Elapsed time: " . (time() - $start_timestamp) . " second(s)");
272 // We wait a little before exiting to avoid to be faster than our parent process.
274 // We exit in order to avoid fork bombing.
278 // We wait a little time before the next fork, in order to let the first fork
279 // mark the feeds it update :
282 $last_checkpoint = time();