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#!/usr/bin/php
<?php
// this daemon runs in the background and updates all feeds
// continuously
// define('DEFAULT_ERROR_LEVEL', E_ALL);
define('DEFAULT_ERROR_LEVEL', E_ERROR | E_WARNING | E_PARSE);
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";
error_reporting(DEFAULT_ERROR_LEVEL);
function sigint_handler() {
unlink(LOCK_DIRECTORY . "/update_daemon.lock");
die("Received SIGINT. Exiting.\n");
}
function sigalrm_handler() {
die("received SIGALRM, hang in feed update?\n");
}
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.");
}
$lock_handle = make_lockfile("update_daemon.lock");
if (!$lock_handle) {
die("error: Can't create lockfile ($lock_filename). ".
"Maybe another daemon is already running.\n");
}
// 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);
$last_purge = 0;
while (true) {
passthru(PHP_EXECUTABLE . " update_daemon_loop.php SRV_RUN_OK");
_debug("Sleeping for " . DAEMON_SLEEP_INTERVAL . " seconds...");
sleep(DAEMON_SLEEP_INTERVAL);
}
?>
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