for ($j = count($children); $j < MAX_JOBS; $j++) {
$pid = pcntl_fork();
if ($pid == -1) {
die("fork failed!\n");
} else {
if ($pid) {
_debug("[MASTER] spawned client {$j} [PID:{$pid}]...");
array_push($children, $pid);
$ctimes[$pid] = time();
} else {
pcntl_signal(SIGCHLD, SIG_IGN);
pcntl_signal(SIGINT, 'task_sigint_handler');
register_shutdown_function('task_shutdown');
$my_pid = posix_getpid();
$lock_filename = "update_daemon-{$my_pid}.lock";
$lock_handle = make_lockfile($lock_filename);
if (!$lock_handle) {
die("error: Can't create lockfile ({$lock_filename}). " . "Maybe another daemon is already running.\n");
}
// ****** Updating RSS code *******
// Only run in fork process.
$start_timestamp = time();
$link = db_connect(DB_HOST, DB_USER, DB_PASS, DB_NAME);
if (!init_connection($link)) {
return;
}
// 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";
}
}
if (isset($options["interval"])) {
_debug("Spawn interval: " . $options["interval"] . " seconds.");
$spawn_interval = $options["interval"];
} else {
$spawn_interval = SPAWN_INTERVAL;
}
if (isset($options["log"])) {
_debug("Logging to " . $options["log"]);
define('LOGFILE', $options["log"]);
}
if (file_is_locked("update_daemon.lock")) {
die("error: Can't create lockfile. " . "Maybe another daemon is already running.\n");
}
// Try to lock a file in order to avoid concurrent update.
$lock_handle = make_lockfile("update_daemon.lock");
if (!$lock_handle) {
die("error: Can't create lockfile. " . "Maybe another daemon is already running.\n");
}
$schema_version = get_schema_version();
if ($schema_version != SCHEMA_VERSION) {
die("Schema version is wrong, please upgrade the database.\n");
}
// Protip: children close shared database handle when terminating, it's a bad idea to
// do database stuff on main process from now on.
while (true) {
// Since sleep is interupted by SIGCHLD, we need another way to
// respect the spawn interval
$next_spawn = $last_checkpoint + $spawn_interval - time();
if ($next_spawn % 60 == 0) {
$running_jobs = count($children);