void
cupsdPauseListening(void)
{
cupsd_listener_t *lis; /* Current listening socket */
if (cupsArrayCount(Listeners) < 1)
return;
if (cupsArrayCount(Clients) == MaxClients)
cupsdLogMessage(CUPSD_LOG_WARN,
"Max clients reached, holding new connections...");
else if (errno == ENFILE || errno == EMFILE)
cupsdLogMessage(CUPSD_LOG_WARN,
"Too many open files, holding new connections for "
"30 seconds...");
cupsdLogMessage(CUPSD_LOG_DEBUG2, "cupsdPauseListening: Clearing input bits...");
for (lis = (cupsd_listener_t *)cupsArrayFirst(Listeners);
lis;
lis = (cupsd_listener_t *)cupsArrayNext(Listeners))
cupsdRemoveSelect(lis->fd);
ListeningPaused = time(NULL) + 30;
}
static void
dnssdStop(void)
{
cupsd_printer_t *p; /* Current printer */
/*
* De-register the individual printers
*/
for (p = (cupsd_printer_t *)cupsArrayFirst(Printers);
p;
p = (cupsd_printer_t *)cupsArrayNext(Printers))
dnssdDeregisterPrinter(p, 1, 0);
/*
* Shutdown the rest of the service refs...
*/
dnssdDeregisterInstance(&WebIFSrv, 0);
# ifdef HAVE_DNSSD
cupsdRemoveSelect(DNSServiceRefSockFD(DNSSDMaster));
DNSServiceRefDeallocate(DNSSDMaster);
DNSSDMaster = NULL;
# else /* HAVE_AVAHI */
if (DNSSDMaster)
avahi_threaded_poll_stop(DNSSDMaster);
if (DNSSDClient)
{
avahi_client_free(DNSSDClient);
DNSSDClient = NULL;
}
if (DNSSDMaster)
{
avahi_threaded_poll_free(DNSSDMaster);
DNSSDMaster = NULL;
}
# endif /* HAVE_DNSSD */
cupsArrayDelete(DNSSDPrinters);
DNSSDPrinters = NULL;
DNSSDPort = 0;
}
void
cupsdStopAllNotifiers(void)
{
cupsd_subscription_t *sub; /* Current subscription */
/*
* See if we have started any notifiers...
*/
if (!NotifierStatusBuffer)
return;
/*
* Yes, kill any processes that are left...
*/
for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions);
sub;
sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions))
if (sub->pid)
{
cupsdEndProcess(sub->pid, 0);
close(sub->pipe);
sub->pipe = -1;
}
/*
* Close the status pipes...
*/
if (NotifierPipes[0] >= 0)
{
cupsdRemoveSelect(NotifierPipes[0]);
cupsdStatBufDelete(NotifierStatusBuffer);
close(NotifierPipes[0]);
close(NotifierPipes[1]);
NotifierPipes[0] = -1;
NotifierPipes[1] = -1;
NotifierStatusBuffer = NULL;
}
}
void
cupsdStopSystemMonitor(void)
{
CFRunLoopRef rl; /* The event handler runloop */
if (SysEventThread)
{
/*
* Make sure the thread has completed it's initialization and
* stored it's runloop reference in the shared global.
*/
pthread_mutex_lock(&SysEventThreadMutex);
if (!SysEventRunloop)
pthread_cond_wait(&SysEventThreadCond, &SysEventThreadMutex);
rl = SysEventRunloop;
SysEventRunloop = NULL;
pthread_mutex_unlock(&SysEventThreadMutex);
if (rl)
CFRunLoopStop(rl);
pthread_join(SysEventThread, NULL);
pthread_mutex_destroy(&SysEventThreadMutex);
pthread_cond_destroy(&SysEventThreadCond);
}
if (SysEventPipes[0] >= 0)
{
cupsdRemoveSelect(SysEventPipes[0]);
cupsdClosePipe(SysEventPipes);
}
}
void
cupsdStopServer(void)
{
if (!started)
return;
/*
* Stop color management (as needed)...
*/
cupsdStopColor();
/*
* Close all network clients...
*/
cupsdCloseAllClients();
cupsdStopListening();
cupsdStopBrowsing();
cupsdStopAllNotifiers();
cupsdDeleteAllCerts();
if (Clients)
{
cupsArrayDelete(Clients);
Clients = NULL;
}
/*
* Close the pipe for CGI processes...
*/
if (CGIPipes[0] >= 0)
{
cupsdRemoveSelect(CGIPipes[0]);
cupsdStatBufDelete(CGIStatusBuffer);
close(CGIPipes[1]);
CGIPipes[0] = -1;
CGIPipes[1] = -1;
}
/*
* Close all log files...
*/
if (AccessFile != NULL)
{
cupsFileClose(AccessFile);
AccessFile = NULL;
}
if (ErrorFile != NULL)
{
cupsFileClose(ErrorFile);
ErrorFile = NULL;
}
if (PageFile != NULL)
{
cupsFileClose(PageFile);
PageFile = NULL;
}
/*
* Delete the default security profile...
*/
cupsdDestroyProfile(DefaultProfile);
DefaultProfile = NULL;
/*
* Write out any dirty files...
*/
if (DirtyFiles)
cupsdCleanDirty();
started = 0;
}
void
cupsdStopServer(void)
{
if (!started)
return;
/*
* Close all network clients and stop all jobs...
*/
cupsdCloseAllClients();
cupsdStopListening();
cupsdStopPolling();
cupsdStopBrowsing();
cupsdStopAllNotifiers();
cupsdSaveRemoteCache();
cupsdDeleteAllCerts();
if (Clients)
{
cupsArrayDelete(Clients);
Clients = NULL;
}
/*
* Close the pipe for CGI processes...
*/
if (CGIPipes[0] >= 0)
{
cupsdRemoveSelect(CGIPipes[0]);
cupsdStatBufDelete(CGIStatusBuffer);
close(CGIPipes[1]);
CGIPipes[0] = -1;
CGIPipes[1] = -1;
}
/*
* Close all log files...
*/
if (AccessFile != NULL)
{
cupsFileClose(AccessFile);
AccessFile = NULL;
}
if (ErrorFile != NULL)
{
cupsFileClose(ErrorFile);
ErrorFile = NULL;
}
if (PageFile != NULL)
{
cupsFileClose(PageFile);
PageFile = NULL;
}
#ifdef HAVE_NOTIFY_POST
/*
* Send one last notification as the server shuts down.
*/
cupsdLogMessage(CUPSD_LOG_DEBUG,
"notify_post(\"com.apple.printerListChange\") last");
notify_post("com.apple.printerListChange");
#endif /* HAVE_NOTIFY_POST */
started = 0;
}
