/*
- * "$Id: subscriptions.c 5046 2006-02-01 22:11:58Z mike $"
+ * "$Id: subscriptions.c 5878 2006-08-24 15:55:42Z mike $"
*
* Subscription routines for the Common UNIX Printing System (CUPS) scheduler.
*
*
* cupsdAddEvent() - Add an event to the global event cache.
* cupsdAddSubscription() - Add a new subscription object.
- * cupsdDeleteAllEvents() - Delete all cached events.
* cupsdDeleteAllSubscriptions() - Delete all subscriptions.
* cupsdDeleteSubscription() - Delete a subscription object.
* cupsdEventName() - Return a single event name.
* cupsdFindSubscription() - Find a subscription by ID.
* cupsdLoadAllSubscriptions() - Load all subscriptions from the .conf file.
* cupsdSaveAllSubscriptions() - Save all subscriptions to the .conf file.
- * cupsdSendNotification() - Send a notification for the specified event.
* cupsdStopAllNotifiers() - Stop all notifier processes.
* cupsdUpdateNotifierStatus() - Read messages from notifiers.
* cupsd_compare_subscriptions() - Compare two subscriptions.
* cupsd_delete_event() - Delete a single event...
* cupsd_send_dbus() - Send a DBUS notification...
+ * cupsd_send_notification() - Send a notification for the specified
+ * event.
* cupsd_start_notifier() - Start a notifier subprocess...
*/
static void cupsd_send_dbus(cupsd_eventmask_t event, cupsd_printer_t *dest,
cupsd_job_t *job);
#endif /* HAVE_DBUS */
+static void cupsd_send_notification(cupsd_subscription_t *sub,
+ cupsd_event_t *event);
static void cupsd_start_notifier(cupsd_subscription_t *sub);
cupsd_subscription_t *sub; /* Current subscription */
+ cupsdLogMessage(CUPSD_LOG_DEBUG2,
+ "cupsdAddEvent(event=%s, dest=%p(%s), job=%p(%d), text=\"%s\", ...)",
+ cupsdEventName(event), dest, dest ? dest->name : "",
+ job, job ? job->id : 0, text);
+
/*
* Keep track of events with any OS-supplied notification mechanisms...
*/
return;
}
- /*
- * Allocate memory for the event cache as needed...
- */
-
- if (!Events)
- {
- Events = calloc(MaxEvents, sizeof(cupsd_event_t *));
- NumEvents = 0;
-
- if (!Events)
- {
- cupsdLogMessage(CUPSD_LOG_CRIT,
- "Unable to allocate memory for event cache - %s",
- strerror(errno));
- return;
- }
- }
-
/*
* Then loop through the subscriptions and add the event to the corresponding
* caches...
*/
- for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions), temp = NULL;
+ for (temp = NULL, sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions);
sub;
sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions))
{
(sub->job == job || !sub->job))
{
/*
- * Need this event...
+ * Need this event, so create a new event record...
*/
- if (!temp)
+ if ((temp = (cupsd_event_t *)calloc(1, sizeof(cupsd_event_t))) == NULL)
{
- /*
- * Create the new event record...
- */
+ cupsdLogMessage(CUPSD_LOG_CRIT,
+ "Unable to allocate memory for event - %s",
+ strerror(errno));
+ return;
+ }
- if ((temp = (cupsd_event_t *)calloc(1, sizeof(cupsd_event_t))) == NULL)
- {
- cupsdLogMessage(CUPSD_LOG_CRIT,
- "Unable to allocate memory for event - %s",
- strerror(errno));
- return;
- }
+ temp->event = event;
+ temp->time = time(NULL);
+ temp->attrs = ippNew();
+ temp->job = job;
+ temp->dest = dest;
- temp->event = event;
- temp->time = time(NULL);
- temp->attrs = ippNew();
- temp->job = job;
- temp->dest = dest;
+ /*
+ * Add common event notification attributes...
+ */
- /*
- * Add common event notification attributes...
- */
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_CHARSET,
+ "notify-charset", NULL, "utf-8");
- ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_INTEGER,
- "notify-subscription-id", sub->id);
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_LANGUAGE,
+ "notify-natural-langugage", NULL, "en-US");
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_KEYWORD,
- "notify-subscribed-event", NULL, cupsdEventName(event));
+ ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_INTEGER,
+ "notify-subscription-id", sub->id);
- ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_INTEGER,
- "printer-up-time", time(NULL));
+ ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_INTEGER,
+ "notify-sequence-number", sub->next_event_id);
- va_start(ap, text);
- vsnprintf(ftext, sizeof(ftext), text, ap);
- va_end(ap);
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_KEYWORD,
+ "notify-subscribed-event", NULL, cupsdEventName(event));
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_TEXT,
- "notify-text", NULL, ftext);
+ if (sub->user_data_len > 0)
+ ippAddOctetString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
+ "notify-user-data", sub->user_data,
+ sub->user_data_len);
- if (dest)
- {
- /*
- * Add printer attributes...
- */
+ ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_INTEGER,
+ "printer-up-time", time(NULL));
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_URI,
- "notify-printer-uri", NULL, dest->uri);
+ va_start(ap, text);
+ vsnprintf(ftext, sizeof(ftext), text, ap);
+ va_end(ap);
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_NAME,
- "printer-name", NULL, dest->name);
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_TEXT,
+ "notify-text", NULL, ftext);
- ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_ENUM,
- "printer-state", dest->state);
+ if (dest)
+ {
+ /*
+ * Add printer attributes...
+ */
- if (dest->num_reasons == 0)
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
- IPP_TAG_KEYWORD, "printer-state-reasons", NULL,
- dest->state == IPP_PRINTER_STOPPED ? "paused" : "none");
- else
- ippAddStrings(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
- IPP_TAG_KEYWORD, "printer-state-reasons",
- dest->num_reasons, NULL,
- (const char * const *)dest->reasons);
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_URI,
+ "notify-printer-uri", NULL, dest->uri);
- ippAddBoolean(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
- "printer-is-accepting-jobs", dest->accepting);
- }
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_NAME,
+ "printer-name", NULL, dest->name);
- if (job)
- {
- /*
- * Add job attributes...
- */
+ ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_ENUM,
+ "printer-state", dest->state);
+
+ if (dest->num_reasons == 0)
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
+ IPP_TAG_KEYWORD, "printer-state-reasons", NULL,
+ dest->state == IPP_PRINTER_STOPPED ? "paused" : "none");
+ else
+ ippAddStrings(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
+ IPP_TAG_KEYWORD, "printer-state-reasons",
+ dest->num_reasons, NULL,
+ (const char * const *)dest->reasons);
- ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_INTEGER,
- "notify-job-id", job->id);
- ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_ENUM,
- "job-state", (int)job->state);
+ ippAddBoolean(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
+ "printer-is-accepting-jobs", dest->accepting);
+ }
- if ((attr = ippFindAttribute(job->attrs, "job-name",
- IPP_TAG_NAME)) != NULL)
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_NAME,
- "job-name", NULL, attr->values[0].string.text);
+ if (job)
+ {
+ /*
+ * Add job attributes...
+ */
- switch (job->state->values[0].integer)
- {
- case IPP_JOB_PENDING :
- if (dest && dest->state == IPP_PRINTER_STOPPED)
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
- IPP_TAG_KEYWORD, "job-state-reasons", NULL,
- "printer-stopped");
- else
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
- IPP_TAG_KEYWORD, "job-state-reasons", NULL,
- "none");
- break;
-
- case IPP_JOB_HELD :
- if (ippFindAttribute(job->attrs, "job-hold-until", IPP_TAG_KEYWORD) != NULL ||
- ippFindAttribute(job->attrs, "job-hold-until", IPP_TAG_NAME) != NULL)
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
- IPP_TAG_KEYWORD, "job-state-reasons", NULL,
- "job-hold-until-specified");
- else
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
- IPP_TAG_KEYWORD, "job-state-reasons", NULL,
- "job-incoming");
- break;
-
- case IPP_JOB_PROCESSING :
- ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
- IPP_TAG_KEYWORD, "job-state-reasons", NULL,
- "job-printing");
- break;
+ ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_INTEGER,
+ "notify-job-id", job->id);
+ ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_ENUM,
+ "job-state", job->state_value);
+
+ if ((attr = ippFindAttribute(job->attrs, "job-name",
+ IPP_TAG_NAME)) != NULL)
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_NAME,
+ "job-name", NULL, attr->values[0].string.text);
- case IPP_JOB_STOPPED :
+ switch (job->state_value)
+ {
+ case IPP_JOB_PENDING :
+ if (dest && dest->state == IPP_PRINTER_STOPPED)
ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
IPP_TAG_KEYWORD, "job-state-reasons", NULL,
- "job-stopped");
- break;
-
- case IPP_JOB_CANCELLED :
+ "printer-stopped");
+ else
ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
IPP_TAG_KEYWORD, "job-state-reasons", NULL,
- "job-canceled-by-user");
- break;
+ "none");
+ break;
- case IPP_JOB_ABORTED :
+ case IPP_JOB_HELD :
+ if (ippFindAttribute(job->attrs, "job-hold-until", IPP_TAG_KEYWORD) != NULL ||
+ ippFindAttribute(job->attrs, "job-hold-until", IPP_TAG_NAME) != NULL)
ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
IPP_TAG_KEYWORD, "job-state-reasons", NULL,
- "aborted-by-system");
- break;
-
- case IPP_JOB_COMPLETED :
+ "job-hold-until-specified");
+ else
ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
IPP_TAG_KEYWORD, "job-state-reasons", NULL,
- "job-completed-successfully");
- break;
- }
-
- ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_INTEGER,
- "job-impressions-completed",
- job->sheets ? job->sheets->values[0].integer : 0);
- }
-
- /*
- * Purge an old event as needed...
- */
-
- if (NumEvents >= MaxEvents)
- {
- /*
- * Purge the oldest event in the cache...
- */
-
- cupsd_delete_event(Events[0]);
-
- NumEvents --;
-
- memmove(Events, Events + 1, NumEvents * sizeof(cupsd_event_t *));
+ "job-incoming");
+ break;
+
+ case IPP_JOB_PROCESSING :
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
+ IPP_TAG_KEYWORD, "job-state-reasons", NULL,
+ "job-printing");
+ break;
+
+ case IPP_JOB_STOPPED :
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
+ IPP_TAG_KEYWORD, "job-state-reasons", NULL,
+ "job-stopped");
+ break;
+
+ case IPP_JOB_CANCELED :
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
+ IPP_TAG_KEYWORD, "job-state-reasons", NULL,
+ "job-canceled-by-user");
+ break;
+
+ case IPP_JOB_ABORTED :
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
+ IPP_TAG_KEYWORD, "job-state-reasons", NULL,
+ "aborted-by-system");
+ break;
+
+ case IPP_JOB_COMPLETED :
+ ippAddString(temp->attrs, IPP_TAG_EVENT_NOTIFICATION,
+ IPP_TAG_KEYWORD, "job-state-reasons", NULL,
+ "job-completed-successfully");
+ break;
}
- /*
- * Add the new event to the main cache...
- */
-
- Events[NumEvents] = temp;
- NumEvents ++;
+ ippAddInteger(temp->attrs, IPP_TAG_EVENT_NOTIFICATION, IPP_TAG_INTEGER,
+ "job-impressions-completed",
+ job->sheets ? job->sheets->values[0].integer : 0);
}
/*
* Send the notification for this subscription...
*/
- cupsdSendNotification(sub, temp);
+ cupsd_send_notification(sub, temp);
}
}
cupsdLogMessage(CUPSD_LOG_DEBUG,
- "cupsdAddSubscription(mask=%x(%s), dest=%p(%s), job=%p(%d), uri=\"%s\")",
- mask, cupsdEventName(mask), dest, dest ? dest->name : "",
- job, job ? job->id : 0, uri);
+ "cupsdAddSubscription(mask=%x, dest=%p(%s), job=%p(%d), "
+ "uri=\"%s\")",
+ mask, dest, dest ? dest->name : "", job, job ? job->id : 0,
+ uri);
if (!Subscriptions)
Subscriptions = cupsArrayNew((cups_array_func_t)cupsd_compare_subscriptions,
}
-/*
- * 'cupsdDeleteAllEvents()' - Delete all cached events.
- */
-
-void
-cupsdDeleteAllEvents(void)
-{
- int i; /* Looping var */
-
-
- if (MaxEvents <= 0 || !Events)
- return;
-
- for (i = 0; i < NumEvents; i ++)
- cupsd_delete_event(Events[i]);
-
- free(Events);
- Events = NULL;
-}
-
-
/*
* 'cupsdDeleteAllSubscriptions()' - Delete all subscriptions.
*/
cupsd_subscription_t *sub, /* I - Subscription object */
int update) /* I - 1 = update subscriptions.conf */
{
+ int i; /* Looping var */
+
+
/*
* Close the pipe to the notifier as needed...
*/
cupsdClearString(&(sub->recipient));
if (sub->events)
+ {
+ for (i = 0; i < sub->num_events; i ++)
+ cupsd_delete_event(sub->events[i]);
+
free(sub->events);
+ }
free(sub);
case CUPSD_EVENT_JOB_PROGRESS :
return ("job-progress");
+ case CUPSD_EVENT_JOB_STATE :
+ return ("job-state");
+
case CUPSD_EVENT_JOB_STATE_CHANGED :
return ("job-state-changed");
return (CUPSD_EVENT_PRINTER_CONFIG_CHANGED);
else if (!strcmp(name, "printer-changed"))
return (CUPSD_EVENT_PRINTER_CHANGED);
+ else if (!strcmp(name, "job-state"))
+ return (CUPSD_EVENT_JOB_STATE);
else if (!strcmp(name, "job-created"))
return (CUPSD_EVENT_JOB_CREATED);
else if (!strcmp(name, "job-completed"))
for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions);
sub;
sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions))
- if ((sub->expire <= curtime && dest && sub->dest == dest) ||
+ if ((!sub->job && !dest && sub->expire && sub->expire <= curtime) ||
+ (dest && sub->dest == dest) ||
(job && sub->job == job))
{
- cupsdLogMessage(CUPSD_LOG_INFO, "Subscription %d has expired...", sub->id);
+ cupsdLogMessage(CUPSD_LOG_INFO, "Subscription %d has expired...",
+ sub->id);
cupsdDeleteSubscription(sub, 0);
while (cupsFileGetConf(fp, line, sizeof(line), &value, &linenum))
{
- if (!strcasecmp(line, "<Subscription"))
+ if (!strcasecmp(line, "NextSubscriptionId") && value)
+ {
+ /*
+ * NextSubscriptionId NNN
+ */
+
+ i = atoi(value);
+ if (i >= NextSubscriptionId && i > 0)
+ NextSubscriptionId = i;
+ }
+ else if (!strcasecmp(line, "<Subscription"))
{
/*
* <Subscription #>
*/
if (value && isdigit(*value & 255))
- sub->lease = atoi(value);
+ {
+ sub->lease = atoi(value);
+ sub->expire = sub->lease ? time(NULL) + sub->lease : 0;
+ }
else
{
cupsdLogMessage(CUPSD_LOG_ERROR,
cupsFilePuts(fp, "# Subscription configuration file for " CUPS_SVERSION "\n");
cupsFilePrintf(fp, "# Written by cupsd on %s\n", temp);
+ cupsFilePrintf(fp, "NextSubscriptionId %d\n", NextSubscriptionId);
+
/*
* Write every subscription known to the system...
*/
}
-/*
- * 'cupsdSendNotification()' - Send a notification for the specified event.
- */
-
-void
-cupsdSendNotification(
- cupsd_subscription_t *sub, /* I - Subscription object */
- cupsd_event_t *event) /* I - Event to send */
-{
- ipp_state_t state; /* IPP event state */
-
-
- cupsdLogMessage(CUPSD_LOG_DEBUG,
- "cupsdSendNotification(sub=%p(%d), event=%p(%s))\n",
- sub, sub->id, event, cupsdEventName(event->event));
-
- /*
- * Allocate the events array as needed...
- */
-
- if (!sub->events)
- {
- sub->events = calloc(MaxEvents, sizeof(cupsd_event_t *));
-
- if (!sub->events)
- {
- cupsdLogMessage(CUPSD_LOG_CRIT,
- "Unable to allocate memory for subscription #%d!",
- sub->id);
- return;
- }
- }
-
- /*
- * Add the event to the subscription. Since the events array is
- * always MaxEvents in length, and since we will have already
- * removed an event from the subscription cache if we hit the
- * event cache limit, we don't need to check for overflow here...
- */
-
- sub->events[sub->num_events] = event;
- sub->num_events ++;
-
- /*
- * Deliver the event...
- */
-
- if (sub->recipient)
- {
- if (sub->pipe < 0)
- cupsd_start_notifier(sub);
-
- cupsdLogMessage(CUPSD_LOG_DEBUG, "sub->pipe=%d", sub->pipe);
-
- if (sub->pipe >= 0)
- {
- event->attrs->state = IPP_IDLE;
-
- while ((state = ippWriteFile(sub->pipe, event->attrs)) != IPP_DATA)
- if (state == IPP_ERROR)
- break;
-
- if (state == IPP_ERROR)
- cupsdLogMessage(CUPSD_LOG_ERROR,
- "Unable to send event for subscription %d (%s)!",
- sub->id, sub->recipient);
- }
- }
-
- /*
- * Bump the event sequence number...
- */
-
- sub->next_event_id ++;
-}
-
-
/*
* 'cupsdStopAllNotifiers()' - Stop all notifier processes.
*/
void
cupsdUpdateNotifierStatus(void)
{
- char *ptr, /* Pointer to end of line in buffer */
- message[1024]; /* Pointer to message text */
+ char message[1024]; /* Pointer to message text */
int loglevel; /* Log level for message */
- while ((ptr = cupsdStatBufUpdate(NotifierStatusBuffer, &loglevel,
- message, sizeof(message))) != NULL)
+ while (cupsdStatBufUpdate(NotifierStatusBuffer, &loglevel,
+ message, sizeof(message)))
if (!strchr(NotifierStatusBuffer->buffer, '\n'))
break;
}
static void
cupsd_delete_event(cupsd_event_t *event)/* I - Event to delete */
{
- cupsd_subscription_t *sub; /* Current subscription */
-
-
- /*
- * Loop through the subscriptions and look for the event in the cache...
- */
-
- for (sub = (cupsd_subscription_t *)cupsArrayFirst(Subscriptions);
- sub;
- sub = (cupsd_subscription_t *)cupsArrayNext(Subscriptions))
- {
- /*
- * Only check the first event in the subscription cache, since the
- * caller will only delete the oldest event in the cache...
- */
-
- if (sub->num_events > 0 && sub->events[0] == event)
- {
- /*
- * Remove this event...
- */
-
- sub->num_events --;
- sub->first_event_id ++;
-
- if (sub->num_events > 0)
- {
- /*
- * Shift other events upward in cache...
- */
-
- memmove(sub->events, sub->events + 1,
- sub->num_events * sizeof(cupsd_event_t *));
- }
- }
- }
-
/*
* Free memory...
*/
else if (event & CUPSD_EVENT_JOB_CREATED)
what = "JobQueuedLocal";
else if ((event & CUPSD_EVENT_JOB_STATE) && job &&
- job->state->values[0].integer == IPP_JOB_PROCESSING)
+ job->state_value == IPP_JOB_PROCESSING)
what = "JobStartedLocal";
else
return;
#endif /* HAVE_DBUS */
+/*
+ * 'cupsd_send_notification()' - Send a notification for the specified event.
+ */
+
+static void
+cupsd_send_notification(
+ cupsd_subscription_t *sub, /* I - Subscription object */
+ cupsd_event_t *event) /* I - Event to send */
+{
+ ipp_state_t state; /* IPP event state */
+
+
+ cupsdLogMessage(CUPSD_LOG_DEBUG2,
+ "cupsd_send_notification(sub=%p(%d), event=%p(%s))\n",
+ sub, sub->id, event, cupsdEventName(event->event));
+
+ /*
+ * Allocate the events array as needed...
+ */
+
+ if (!sub->events)
+ {
+ sub->events = calloc(MaxEvents, sizeof(cupsd_event_t *));
+
+ if (!sub->events)
+ {
+ cupsdLogMessage(CUPSD_LOG_CRIT,
+ "Unable to allocate memory for subscription #%d!",
+ sub->id);
+ return;
+ }
+ }
+
+ /*
+ * Purge an old event as needed...
+ */
+
+ if (sub->num_events >= MaxEvents)
+ {
+ /*
+ * Purge the oldest event in the cache...
+ */
+
+ cupsd_delete_event(sub->events[0]);
+
+ sub->num_events --;
+ sub->first_event_id ++;
+
+ memmove(sub->events, sub->events + 1,
+ sub->num_events * sizeof(cupsd_event_t *));
+ }
+
+ /*
+ * Add the event to the subscription. Since the events array is
+ * always MaxEvents in length, and since we will have already
+ * removed an event from the subscription cache if we hit the
+ * event cache limit, we don't need to check for overflow here...
+ */
+
+ sub->events[sub->num_events] = event;
+ sub->num_events ++;
+
+ /*
+ * Deliver the event...
+ */
+
+ if (sub->recipient)
+ {
+ for (;;)
+ {
+ if (sub->pipe < 0)
+ cupsd_start_notifier(sub);
+
+ cupsdLogMessage(CUPSD_LOG_DEBUG2, "sub->pipe=%d", sub->pipe);
+
+ if (sub->pipe < 0)
+ break;
+
+ event->attrs->state = IPP_IDLE;
+
+ while ((state = ippWriteFile(sub->pipe, event->attrs)) != IPP_DATA)
+ if (state == IPP_ERROR)
+ break;
+
+ if (state == IPP_ERROR)
+ {
+ if (errno == EPIPE)
+ {
+ /*
+ * Notifier died, try restarting it...
+ */
+
+ cupsdLogMessage(CUPSD_LOG_WARN,
+ "Notifier for subscription %d (%s) went away, "
+ "retrying!",
+ sub->id, sub->recipient);
+ cupsdEndProcess(sub->pid, 0);
+
+ close(sub->pipe);
+ sub->pipe = -1;
+ continue;
+ }
+
+ cupsdLogMessage(CUPSD_LOG_ERROR,
+ "Unable to send event for subscription %d (%s)!",
+ sub->id, sub->recipient);
+ }
+
+ /*
+ * If we get this far, break out of the loop...
+ */
+
+ break;
+ }
+ }
+
+ /*
+ * Bump the event sequence number...
+ */
+
+ sub->next_event_id ++;
+}
+
+
/*
* 'cupsd_start_notifier()' - Start a notifier subprocess...
*/
{
int pid; /* Notifier process ID */
int fds[2]; /* Pipe file descriptors */
- int envc; /* Number of environment variables */
char *argv[4], /* Command-line arguments */
*envp[MAX_ENV], /* Environment variables */
user_data[128], /* Base-64 encoded user data */
* Setup the environment...
*/
- envc = cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0])));
+ cupsdLoadEnv(envp, (int)(sizeof(envp) / sizeof(envp[0])));
/*
* Create pipes as needed...
/*
- * End of "$Id: subscriptions.c 5046 2006-02-01 22:11:58Z mike $".
+ * End of "$Id: subscriptions.c 5878 2006-08-24 15:55:42Z mike $".
*/
projects / thirdparty / cups.git / blobdiff