-#!/usr/bin/php4
-<?
+#!/usr/bin/php
+<?php
// this daemon runs in the background and updates all feeds
// continuously
- define('SLEEP_INTERVAL', 30); // seconds
+ // define('DEFAULT_ERROR_LEVEL', E_ALL);
+ define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
- // TODO: allow update scheduling from users
-
- define('MAGPIE_CACHE_DIR', '/var/tmp/magpie-ttrss-cache-daemon');
+ declare(ticks = 1);
define('DISABLE_SESSIONS', true);
+ require_once "version.php";
+
+ if (strpos(VERSION, ".99") !== false || getenv('DAEMON_XDEBUG')) {
+ define('DAEMON_EXTENDED_DEBUG', true);
+ }
+
+ define('PURGE_INTERVAL', 3600); // seconds
+
require_once "sanity_check.php";
require_once "config.php";
+
+ if (!defined('PHP_EXECUTABLE')) {
+ 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";
- $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
+ error_reporting(DEFAULT_ERROR_LEVEL);
- if (!$link) {
- if (DB_TYPE == "mysql") {
- print mysql_error();
- }
- // PG seems to display its own errors just fine by default.
- return;
+ function sigint_handler() {
+ unlink(LOCK_DIRECTORY . "/update_daemon.lock");
+ die("Received SIGINT. Exiting.\n");
}
- if (DB_TYPE == "pgsql") {
- pg_query("set client_encoding = 'utf-8'");
+ function sigalrm_handler() {
+ die("received SIGALRM, hang in feed update?\n");
}
- $result = db_query($link, "SELECT feed_url,id,owner_uid,
- SUBSTRING(last_updated,1,19) AS last_updated,
- update_interval FROM ttrss_feeds ORDER BY last_updated DESC");
-
- while ($line = db_fetch_assoc($result)) {
+ if (function_exists('pcntl_signal')) {
+ pcntl_signal(SIGINT, sigint_handler);
+ pcntl_signal(SIGALRM, sigalrm_handler);
+ } else {
+ _debug("Warning: pcntl_signal function not present, continuing without support for signals.");
+ }
- print "Checking feed: " . $line["feed_url"] . "\n";
+ $lock_handle = make_lockfile("update_daemon.lock");
- $upd_intl = $line["update_interval"];
+ if (!$lock_handle) {
+ die("error: Can't create lockfile ($lock_filename). ".
+ "Maybe another daemon is already running.\n");
+ }
- $user_id = $line["owner_uid"];
+ // Testing database connection.
+ // It is unnecessary to start the fork loop if database is not ok.
+ $link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
- if (!$upd_intl || $upd_intl == 0) {
- $upd_intl = get_pref($link, 'DEFAULT_UPDATE_INTERVAL', $user_id);
+ if (!$link) {
+ if (DB_TYPE == "mysql") {
+ print mysql_error();
}
+ // PG seems to display its own errors just fine by default.
+ return;
+ }
- if ($fetch || (!$line["last_updated"] ||
- time() - strtotime($line["last_updated"]) > ($upd_intl * 60))) {
+ db_close($link);
- print "Updating...\n";
+ $last_purge = 0;
- update_rss_feed($link, $line["feed_url"], $line["id"], true);
+ while (true) {
- }
- }
+ passthru(PHP_EXECUTABLE . " update_daemon_loop.php SRV_RUN_OK");
- sleep(SLEEP_INTERVAL);
+ _debug("Sleeping for " . DAEMON_SLEEP_INTERVAL . " seconds...");
+
+ sleep(DAEMON_SLEEP_INTERVAL);
+ }
- db_close($link);
?>