Initial support for a lightweight 'deferred callbacks'.

A 'deferred callback' is just a function that we've queued in the
event base.  This ability is needed for some mt stuff, and for complex
callback chains.  For internal use only.

svn:r1150

1 files changed, 4 insertions, 0 deletions

diff --git a/event-internal.h b/event-internal.h
index 4fbf6b8a..3d0bec6c 100644
--- a/event-internal.h
+++ b/event-internal.h
@@ -101,12 +101,16 @@ struct event_base {
 	struct event_list **activequeues;
 	int nactivequeues;
 
+	/* deferred callback management */
+	TAILQ_HEAD (deferred_cb_list, deferred_cb) deferred_cb_list;
+
 	/* for mapping io activity to events */
 	struct event_io_map io;
 
 	/* for mapping signal activity to events */
 	struct event_signal_map sigmap;
 
+
 	struct event_list eventqueue;
 	struct timeval event_tv;