Make event iterator gracefully handle optional ports.

1 files changed, 4 insertions, 1 deletions

diff --git a/lv2/lv2plug.in/ns/ext/event/event-helpers.h b/lv2/lv2plug.in/ns/ext/event/event-helpers.h
index 46d634d..8e29507 100644
--- a/lv2/lv2plug.in/ns/ext/event/event-helpers.h
+++ b/lv2/lv2plug.in/ns/ext/event/event-helpers.h
@@ -108,7 +108,7 @@ lv2_event_begin(LV2_Event_Iterator* iter,
 static inline bool
 lv2_event_is_valid(LV2_Event_Iterator* iter)
 {
-	return (iter->offset < iter->buf->size);
+	return (iter->buf && (iter->offset < iter->buf->size));
 }
 
 
@@ -165,6 +165,9 @@ lv2_event_write(LV2_Event_Iterator* iter,
                 uint16_t            size,
                 const uint8_t*      data)
 {
+	if (!iter->buf)
+		return false;
+
 	if (iter->buf->capacity - iter->buf->size < sizeof(LV2_Event) + size)
 		return false;