VCL IOEvent external API callback

Change-Id: I417357b00c43b27872aa3f681335bdc1ef574eca
Signed-off-by: Keith Burns (alagalah) <alagalah@gmail.com>
Signed-off-by: Dave Wallace <dwallacelf@gmail.com>

1 files changed, 18 insertions, 4 deletions

diff --git a/src/vcl/vcl_event.h b/src/vcl/vcl_event.h
index f2a85a0f1d2..21884665075 100644
--- a/src/vcl/vcl_event.h
+++ b/src/vcl/vcl_event.h
@@ -39,8 +39,8 @@ typedef union vce_event_key_
 typedef struct vce_event_
 {
   vce_event_key_t evk;
-  u32 refcnt;
-  void *data;
+  u32 recycle;
+  u64 data[2]; // Hard code size to avoid allocator thrashing.
 } vce_event_t;
 
 typedef void (*vce_event_callback_t) (void *reg /*vce_event_handler_reg_t* */);
@@ -87,9 +87,9 @@ int vce_generate_event (vce_event_thread_t *evt, u32 ev_idx);
  * - removes event from event_pool
  *
  * @param evt - vce_event_thread_t - event system state
- * @param ev  - vce_event_t - event to remove
+ * @param ev_idx  - u32 - index of event to remove
  */
-void vce_clear_event (vce_event_thread_t *evt, vce_event_t *ev);
+void vce_clear_event (vce_event_thread_t *evt, u32 ev_idx);
 
 /**
  * @brief vce_get_event_from_index()
@@ -102,6 +102,20 @@ void vce_clear_event (vce_event_thread_t *evt, vce_event_t *ev);
 vce_event_t * vce_get_event_from_index(vce_event_thread_t *evt, u32 ev_idx);
 
 /**
+ * @brief vce_get_event_data()
+ *
+ * @param ev - vce_event_t * - event
+ * @param data_size - u32 - required size of data
+ *
+ * @return vce_event_t *
+ */
+always_inline void * vce_get_event_data(vce_event_t *ev, u32 data_size)
+{
+	ASSERT(sizeof(ev->data) >= data_size);
+	return (&ev->data);
+}
+
+/**
  * @brief vce_get_event_handler()
  * - returns handler if exists or 0
  * @param evt - vce_event_thread_t - event system state