#!/usr/bin/php
<?php
- // This is an experimental multiprocess update daemon
- // It consists of the master server (this file) and
- // client batch script (update_daemon2_client.php) which
- // should only be run by the server process
+ // This is an experimental multiprocess update daemon.
+ // Some configurable variable may be found below.
+
+ // define('DEFAULT_ERROR_LEVEL', E_ALL);
+ define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
declare(ticks = 1);
- require_once "config.php";
- require_once "functions.php";
+ 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);
- define('CLIENT_PROCESS', './update_daemon2_client.php SRV_RUN_OK');
+
+ require_once "version.php";
+
+ if (strpos(VERSION, ".99") !== false) {
+ define('DAEMON_EXTENDED_DEBUG', true);
+ }
+
+ define('PURGE_INTERVAL', 3600); // seconds
+
+ require_once "sanity_check.php";
+ require_once "config.php";
+
define('SPAWN_INTERVAL', DAEMON_SLEEP_INTERVAL);
- define('PHP_EXECUTABLE', '/usr/bin/php');
+
+ if (!ENABLE_UPDATE_DAEMON) {
+ die("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";
+
+ error_reporting(DEFAULT_ERROR_LEVEL);
$running_jobs = 0;
$last_checkpoint = -1;
+ function sigalrm_handler() {
+ die("received SIGALRM, hang in feed update?\n");
+ }
+
function sigchld_handler($signal) {
global $running_jobs;
if ($running_jobs > 0) $running_jobs--;
die("Received SIGINT. Exiting.\n");
}
+ pcntl_signal(SIGALRM, 'sigalrm_handler');
pcntl_signal(SIGCHLD, 'sigchld_handler');
pcntl_signal(SIGINT, 'sigint_handler');
"Maybe another daemon is already running.\n");
}
+ if (file_is_locked("update_daemon.lock")) {
+ die("error: Can't create lockfile. ".
+ "Maybe another daemon is already running.\n");
+ }
+
if (!pcntl_fork()) {
$lock_handle = make_lockfile("update_daemon.lock");
while (true) { sleep(100); }
}
+ // Testing database connection.
+ // It is unnecessary to start the fork loop if database is not ok.
+ $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
+
+ if (!$link) {
+ if (DB_TYPE == "mysql") {
+ print mysql_error();
+ }
+ // PG seems to display its own errors just fine by default.
+ return;
+ }
+
+ db_close($link);
+
+
while (true) {
$next_spawn = $last_checkpoint + SPAWN_INTERVAL - time();
} else {
pcntl_signal(SIGCHLD, SIG_IGN);
pcntl_signal(SIGINT, SIG_DFL);
- passthru(PHP_EXECUTABLE . ' ' . CLIENT_PROCESS);
+
+ // ****** Updating RSS code *******
+ // Only run in fork process.
+
+ $start_timestamp = time();
+
+ $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
+
+ if (!$link) {
+ if (DB_TYPE == "mysql") {
+ print mysql_error();
+ }
+ // PG seems to display its own errors just fine by default.
+ 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);
+ }
+ }
+
+ // We disable stamp file, since it is of no use in a multiprocess update.
+ // not really, tho for the time being -fox
+ if (!make_stampfile('update_daemon.stamp')) {
+ 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();
+ // }
+
+ // Process all other feeds using last_updated and interval parameters
+
+ $random_qpart = sql_random_function();
+
+ if (DAEMON_UPDATE_LOGIN_LIMIT > 0) {
+ if (DB_TYPE == "pgsql") {
+ $login_thresh_qpart = "AND ttrss_users.last_login >= NOW() - INTERVAL '".DAEMON_UPDATE_LOGIN_LIMIT." days'";
+ } else {
+ $login_thresh_qpart = "AND ttrss_users.last_login >= DATE_SUB(NOW(), INTERVAL ".DAEMON_UPDATE_LOGIN_LIMIT." DAY)";
+ }
+ } else {
+ $login_thresh_qpart = "";
+ }
+
+ if (DB_TYPE == "pgsql") {
+ $update_limit_qpart = "AND ttrss_feeds.last_updated < NOW() - INTERVAL '".(DAEMON_SLEEP_INTERVAL*2)." seconds'";
+ } else {
+ $update_limit_qpart = "AND ttrss_feeds.last_updated < DATE_SUB(NOW(), INTERVAL ".(DAEMON_SLEEP_INTERVAL*2)." SECOND)";
+ }
+
+ if (DB_TYPE == "pgsql") {
+ $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < NOW() - INTERVAL '120 seconds')";
+ } else {
+ $updstart_thresh_qpart = "AND (ttrss_feeds.last_update_started IS NULL OR ttrss_feeds.last_update_started < DATE_SUB(NOW(), INTERVAL 120 SECOND))";
+ }
+
+ $result = db_query($link, "SELECT feed_url,ttrss_feeds.id,owner_uid,
+ SUBSTRING(last_updated,1,19) AS last_updated,
+ update_interval
+ FROM
+ ttrss_feeds,ttrss_users
+ WHERE
+ ttrss_users.id = owner_uid $login_thresh_qpart $update_limit_qpart
+ $updstart_thresh_qpart
+ ORDER BY $random_qpart DESC LIMIT " . DAEMON_FEED_LIMIT);
+
+ $user_prefs_cache = array();
+
+ _debug(sprintf("Scheduled %d feeds to update...\n", db_num_rows($result)));
+
+ // Here is a little cache magic in order to minimize risk of double feed updates.
+ $feeds_to_update = array();
+ while ($line = db_fetch_assoc($result)) {
+ $feeds_to_update[$line['id']] = $line;
+ }
+
+ // We update the feed last update started date before anything else.
+ // There is no lag due to feed contents downloads
+ // It prevent an other process to update the same feed.
+ $feed_ids = array_keys($feeds_to_update);
+ if($feed_ids) {
+ db_query($link, sprintf("UPDATE ttrss_feeds SET last_update_started = NOW()
+ WHERE id IN (%s)", implode(',', $feed_ids)));
+ }
+
+ while ($line = array_pop($feeds_to_update)) {
+
+ $upd_intl = $line["update_interval"];
+ $user_id = $line["owner_uid"];
+
+ if (!$upd_intl || $upd_intl == 0) {
+ if (!$user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL']) {
+ $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
+ $user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'] = $upd_intl;
+ } else {
+ $upd_intl = $user_prefs_cache[$user_id]['DEFAULT_UPDATE_INTERVAL'];
+ }
+ }
+
+ if ($upd_intl < 0) {
+ # print "Updates disabled.\n";
+ continue;
+ }
+
+ _debug("Feed: " . $line["feed_url"] . ", " . $line["last_updated"]);
+
+ // _debug(sprintf("\tLU: %d, INTL: %d, UID: %d) ",
+ // time() - strtotime($line["last_updated"]), $upd_intl*60, $user_id));
+
+ if (!$line["last_updated"] ||
+ time() - strtotime($line["last_updated"]) > ($upd_intl * 60)) {
+
+ _debug("Updating...");
+
+ pcntl_alarm(300);
+
+ update_rss_feed($link, $line["feed_url"], $line["id"], true);
+
+ pcntl_alarm(0);
+
+ sleep(1); // prevent flood (FIXME make this an option?)
+ } else {
+ _debug("Update not needed.");
+ }
+ }
+
+ if (DAEMON_SENDS_DIGESTS) send_headlines_digests($link);
+
+ print "Elapsed time: " . (time() - $start_timestamp) . " second(s)\n";
+
+ db_close($link);
+
+ // We are in a fork.
+ // We wait a little before exiting to avoid to be faster than our parent process.
+ sleep(1);
+ // We exit in order to avoid fork bombing.
exit(0);
}
}
git.wh0rd.org / tt-rss.git / blobdiff