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 $pid reaped.");
63 function sigalrm_handler() {
64 die("received SIGALRM, hang in feed update?\n");
67 function sigchld_handler($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("Received SIGINT. Exiting.\n");
80 pcntl_signal(SIGALRM
, 'sigalrm_handler');
81 pcntl_signal(SIGCHLD
, 'sigchld_handler');
82 pcntl_signal(SIGINT
, 'sigint_handler');
84 if (file_is_locked("update_daemon.lock")) {
85 die("error: Can't create lockfile. ".
86 "Maybe another daemon is already running.\n");
89 if (file_is_locked("update_daemon.lock")) {
90 die("error: Can't create lockfile. ".
91 "Maybe another daemon is already running.\n");
95 $lock_handle = make_lockfile("update_daemon.lock");
98 die("error: Can't create lockfile. ".
99 "Maybe another daemon is already running.\n");
102 while (true) { sleep(100); }
105 // Testing database connection.
106 // It is unnecessary to start the fork loop if database is not ok.
107 $link = db_connect(DB_HOST
, DB_USER
, DB_PASS
, DB_NAME
);
110 if (DB_TYPE
== "mysql") {
113 // PG seems to display its own errors just fine by default.
122 $next_spawn = $last_checkpoint + SPAWN_INTERVAL
- time();
124 if ($next_spawn %
10 == 0) {
125 $running_jobs = count($children);
126 _debug("[MASTER] active jobs: $running_jobs, next spawn at $next_spawn sec.");
129 if ($last_checkpoint + SPAWN_INTERVAL
< time()) {
133 for ($j = count($children); $j < MAX_JOBS
; $j++
) {
136 die("fork failed!\n");
138 _debug("[MASTER] spawned client $j [PID:$pid]...");
139 array_push($children, $pid);
141 pcntl_signal(SIGCHLD
, SIG_IGN
);
142 pcntl_signal(SIGINT
, SIG_DFL
);
144 // ****** Updating RSS code *******
145 // Only run in fork process.
147 $start_timestamp = time();
149 $link = db_connect(DB_HOST
, DB_USER
, DB_PASS
, DB_NAME
);
152 if (DB_TYPE
== "mysql") {
155 // PG seems to display its own errors just fine by default.
159 if (DB_TYPE
== "pgsql") {
160 pg_query("set client_encoding = 'utf-8'");
161 pg_set_client_encoding("UNICODE");
163 if (defined('MYSQL_CHARSET') && MYSQL_CHARSET
) {
164 db_query($link, "SET NAMES " . MYSQL_CHARSET
);
165 // db_query($link, "SET CHARACTER SET " . MYSQL_CHARSET);
169 // We disable stamp file, since it is of no use in a multiprocess update.
170 // not really, tho for the time being -fox
171 if (!make_stampfile('update_daemon.stamp')) {
172 print "warning: unable to create stampfile";
177 // if (time() - $last_purge > PURGE_INTERVAL) {
179 // FIXME : $last_purge is of no use in a multiprocess update.
180 // FIXME : We ALWAYS purge old posts.
181 _debug("Purging old posts (random 30 feeds)...");
182 global_purge_old_posts($link, true, 30);
184 // $last_purge = time();
187 // Process all other feeds using last_updated and interval parameters
189 $random_qpart = sql_random_function();
191 if (DAEMON_UPDATE_LOGIN_LIMIT
> 0) {
192 if (DB_TYPE
== "pgsql") {
193 $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT
." days'";
195 $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT
." DAY)";
198 $login_thresh_qpart = "";
201 if (DB_TYPE
== "pgsql") {
202 $update_limit_qpart = "AND ttrss_feeds.last_updated < NOW() - INTERVAL '".(DAEMON_SLEEP_INTERVAL
*2)." seconds'";
204 $update_limit_qpart = "AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ".(DAEMON_SLEEP_INTERVAL
*2)." SECOND)";
207 if (DB_TYPE
== "pgsql") {
208 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
210 $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
213 $result = db_query($link, "SELECT feed_url,ttrss_feeds.id,owner_uid,
214 SUBSTRING(last_updated,1,19) AS last_updated,
217 ttrss_feeds,ttrss_users
219 ttrss_users.id = owner_uid $login_thresh_qpart $update_limit_qpart
220 $updstart_thresh_qpart
221 ORDER BY $random_qpart DESC LIMIT " . DAEMON_FEED_LIMIT
);
223 $user_prefs_cache = array();
225 _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
227 // Here is a little cache magic in order to minimize risk of double feed updates.
228 $feeds_to_update = array();
229 while ($line = db_fetch_assoc($result)) {
230 $feeds_to_update[$line['id']] = $line;
233 // We update the feed last update started date before anything else.
234 // There is no lag due to feed contents downloads
235 // It prevent an other process to update the same feed.
236 $feed_ids = array_keys($feeds_to_update);
238 db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
239 WHERE id IN (%s)", implode(',', $feed_ids)));
242 while ($line = array_pop($feeds_to_update)) {
244 $upd_intl = $line["update_interval"];
245 $user_id = $line["owner_uid"];
247 if (!$upd_intl ||
$upd_intl == 0) {
248 if (!$user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL']) {
249 $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
250 $user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'] = $upd_intl;
252 $upd_intl = $user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'];
257 # print "Updates disabled.\n";
261 _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
263 // _debug(sprintf("\tLU: %d, INTL: %d, UID: %d) ",
264 // time() - strtotime($line["last_updated"]), $upd_intl*60, $user_id));
266 if (!$line["last_updated"] ||
267 time() - strtotime($line["last_updated"]) > ($upd_intl * 60)) {
269 _debug("Updating...");
273 update_rss_feed($link, $line["feed_url"], $line["id"], true);
277 sleep(1); // prevent flood (FIXME make this an option?)
279 _debug("Update not needed.");
283 if (DAEMON_SENDS_DIGESTS
) send_headlines_digests($link);
285 print "Elapsed time: " . (time() - $start_timestamp) . " second(s)\n";
290 // We wait a little before exiting to avoid to be faster than our parent process.
292 // We exit in order to avoid fork bombing.
296 $last_checkpoint = time();