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);
}
}
static void
cupsd_start_notifier(
cupsd_subscription_t *sub) /* I - Subscription object */
{
int pid; /* Notifier process ID */
int fds[2]; /* Pipe file descriptors */
char *argv[4], /* Command-line arguments */
*envp[MAX_ENV], /* Environment variables */
user_data[128], /* Base-64 encoded user data */
scheme[256], /* notify-recipient-uri scheme */
*ptr, /* Pointer into scheme */
command[1024]; /* Notifier command */
/*
* Extract the scheme name from the recipient URI and point to the
* notifier program...
*/
strlcpy(scheme, sub->recipient, sizeof(scheme));
if ((ptr = strchr(scheme, ':')) != NULL)
*ptr = '\0';
snprintf(command, sizeof(command), "%s/notifier/%s", ServerBin, scheme);
/*
* Base-64 encode the user data...
*/
httpEncode64_2(user_data, sizeof(user_data), (char *)sub->user_data,
sub->user_data_len);
/*
* Setup the argument array...
*/
argv[0] = command;
argv[1] = sub->recipient;
argv[2] = user_data;
argv[3] = NULL;
/*
* Setup the environment...
*/
cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0])));
/*
* Create pipes as needed...
*/
if (!NotifierStatusBuffer)
{
/*
* Create the status pipe...
*/
if (cupsdOpenPipe(NotifierPipes))
{
cupsdLogMessage(CUPSD_LOG_ERROR,
"Unable to create pipes for notifier status - %s",
strerror(errno));
return;
}
NotifierStatusBuffer = cupsdStatBufNew(NotifierPipes[0], "[Notifier]");
cupsdAddSelect(NotifierPipes[0], (cupsd_selfunc_t)cupsd_update_notifier,
NULL, NULL);
}
if (cupsdOpenPipe(fds))
{
cupsdLogMessage(CUPSD_LOG_ERROR,
"Unable to create pipes for notifier %s - %s",
scheme, strerror(errno));
return;
}
/*
* Make sure the delivery pipe is non-blocking...
*/
fcntl(fds[1], F_SETFL, fcntl(fds[1], F_GETFL) | O_NONBLOCK);
/*
* Create the notifier process...
*/
if (cupsdStartProcess(command, argv, envp, fds[0], -1, NotifierPipes[1],
-1, -1, 0, DefaultProfile, NULL, &pid) < 0)
{
/*
* Error - can't fork!
*/
cupsdLogMessage(CUPSD_LOG_ERROR, "Unable to fork for notifier %s - %s",
scheme, strerror(errno));
cupsdClosePipe(fds);
}
else
{
/*
* Fork successful - return the PID...
*/
cupsdLogMessage(CUPSD_LOG_DEBUG, "Notifier %s started - PID = %d",
scheme, pid);
sub->pid = pid;
sub->pipe = fds[1];
sub->status = 0;
close(fds[0]);
}
}