From: Timo Sirainen <timo.sirainen@open-xchange.com>
Date: Thu, 5 Sep 2019 08:59:20 +0000 (+0300)
Subject: lib: Add EVENT_CALLBACK_TYPE_CREATE to call a callback on event creation
X-Git-Tag: 2.3.9~170
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=fb2ad3ce1be266b3930dc462461939e7830eb4a7;p=thirdparty%2Fdovecot%2Fcore.git

lib: Add EVENT_CALLBACK_TYPE_CREATE to call a callback on event creation

It's not called for event_dup() or event_flatten(), because those are based
on events that were already created.
---

diff --git a/src/lib-master/stats-client.c b/src/lib-master/stats-client.c
index 9c340fc2ee..281b876b09 100644
--- a/src/lib-master/stats-client.c
+++ b/src/lib-master/stats-client.c
@@ -226,6 +226,8 @@ stats_event_callback(struct event *event, enum event_callback_type type,
 		return TRUE;
 
 	switch (type) {
+	case EVENT_CALLBACK_TYPE_CREATE:
+		break;
 	case EVENT_CALLBACK_TYPE_SEND:
 		stats_client_send_event(client, event, ctx);
 		break;
diff --git a/src/lib/lib-event-private.h b/src/lib/lib-event-private.h
index 175f19c3e5..e61168d9f7 100644
--- a/src/lib/lib-event-private.h
+++ b/src/lib/lib-event-private.h
@@ -43,6 +43,8 @@ struct event {
 };
 
 enum event_callback_type {
+	/* Event was just created */
+	EVENT_CALLBACK_TYPE_CREATE,
 	/* Event is being sent */
 	EVENT_CALLBACK_TYPE_SEND,
 	/* Event is being freed */
@@ -72,7 +74,7 @@ struct event_category *event_category_find_registered(const char *name);
 struct event_category *const *
 event_get_registered_categories(unsigned int *count_r);
 
-/* Register callback to be called whenever events are sent. */
+/* Register callback to be called for event's different states. */
 void event_register_callback(event_callback_t *callback);
 void event_unregister_callback(event_callback_t *callback);
 
diff --git a/src/lib/lib-event.c b/src/lib/lib-event.c
index f2c8add811..aa08e46364 100644
--- a/src/lib/lib-event.c
+++ b/src/lib/lib-event.c
@@ -346,7 +346,11 @@ event_create_internal(struct event *parent, const char *source_filename,
 struct event *event_create(struct event *parent, const char *source_filename,
 			   unsigned int source_linenum)
 {
-	return event_create_internal(parent, source_filename, source_linenum);
+	struct event *event;
+
+	event = event_create_internal(parent, source_filename, source_linenum);
+	(void)event_call_callbacks_noargs(event, EVENT_CALLBACK_TYPE_CREATE);
+	return event;
 }
 
 #undef event_create_passthrough