/**
* Put the running script in background
*
* @return void
*/
protected static function _summon()
{
if (self::opt('usePEARLogInstance')) {
$logLoc = '(PEAR Log)';
} else {
if (self::opt('useCustomLogHandler')) {
$logLoc = '(Custom log handler)';
} else {
$logLoc = self::opt('logLocation');
}
}
self::notice('Starting {appName} daemon, output in: %s', $logLoc);
// Allowed?
if (self::isRunning()) {
return self::emerg('{appName} daemon is still running. Exiting');
}
// Reset Process Information
self::$_safeMode = !!@ini_get('safe_mode');
self::$_processId = 0;
self::$_processIsChild = false;
// Fork process!
if (!self::_fork()) {
return self::emerg('Unable to fork');
}
// Additional PID succeeded check
if (!is_numeric(self::$_processId) || self::$_processId < 1) {
return self::emerg('No valid pid: %s', self::$_processId);
}
// Change umask
@umask(0);
// Write pidfile
$p = self::_writePid(self::opt('appPidLocation'), self::$_processId);
if (false === $p) {
return self::emerg('Unable to write pid file {appPidLocation}');
}
// Change identity. maybe
$c = self::_changeIdentity(self::opt('appRunAsGID'), self::opt('appRunAsUID'));
if (false === $c) {
self::crit('Unable to change identity');
if (self::opt('appDieOnIdentityCrisis')) {
self::emerg('Cannot continue after this');
}
}
// Important for daemons
// See http://www.php.net/manual/en/function.pcntl-signal.php
declare (ticks=1);
// Setup signal handlers
// Handlers for individual signals can be overrulled with
// setSigHandler()
foreach (self::$_sigHandlers as $signal => $handler) {
if (!is_callable($handler) && $handler != SIG_IGN && $handler != SIG_DFL) {
return self::emerg('You want to assign signal %s to handler %s but ' . 'it\'s not callable', $signal, $handler);
} else {
if (!pcntl_signal($signal, $handler)) {
return self::emerg('Unable to reroute signal handler: %s', $signal);
}
}
}
// Change dir
@chdir(self::opt('appDir'));
return true;
}
/**
* Put the running script in background
*
* @return void
*/
protected static function _summon()
{
self::log(self::LOG_NOTICE, "starting " . self::getOption("appName") . " " . "daemon, output in: " . self::getOption("logLocation"), __FILE__, __CLASS__, __FUNCTION__, __LINE__);
// Allowed?
if (self::isRunning()) {
self::log(self::LOG_EMERG, "" . self::getOption("appName") . " " . "daemon is still running. " . "exiting", __FILE__, __CLASS__, __FUNCTION__, __LINE__);
}
// Reset Process Information
self::$_safeMode = (bool) @ini_get("safe_mode") === false ? false : true;
self::$_processId = 0;
self::$_processIsChild = false;
// Fork process!
if (!self::_fork()) {
self::log(self::LOG_EMERG, "" . self::getOption("appName") . " " . "daemon was unable to fork", __FILE__, __CLASS__, __FUNCTION__, __LINE__);
}
// Additional PID succeeded check
if (!is_numeric(self::$_processId) || self::$_processId < 1) {
self::log(self::LOG_EMERG, "" . self::getOption("appName") . " " . "daemon didn't have a valid " . "pid: '" . self::$_processId . "'", __FILE__, __CLASS__, __FUNCTION__, __LINE__);
}
// Change umask
@umask(0);
// Write pidfile
if (false === self::_writePid(self::getOption("appPidLocation"), self::$_processId)) {
self::log(self::LOG_EMERG, "" . self::getOption("appName") . " " . "daemon was unable " . "to write pid file");
}
// Change identity. maybe
if (false === self::_changeIdentity(self::getOption("appRunAsGID"), self::getOption("appRunAsUID"))) {
// Die on fail?
$lvl = self::getOption("appDieOnIdentityCrisis") ? self::LOG_EMERG : self::LOG_CRIT;
self::log($lvl, "" . self::getOption("appName") . " " . "daemon was unable " . "to change identity");
}
// Important for daemons
// See http://www.php.net/manual/en/function.pcntl-signal.php
declare (ticks=1);
// Setup signal handlers
// Handlers for individual signals can be overrulled with
// setSigHandler()
foreach (self::$_sigHandlers as $signal => $handler) {
if (!pcntl_signal($signal, $handler)) {
self::log(self::LOG_EMERG, "" . self::getOption("appName") . " " . "daemon was unable " . "to reroute signal handler " . $signal);
return false;
}
}
// Change dir
@chdir(self::getOption("appDir"));
return true;
}