user cb

1 files changed, 10 insertions, 2 deletions

diff --git a/include/cl_event.h b/include/cl_event.h
index 3298bf5c..ffbebf93 100644
--- a/include/cl_event.h
+++ b/include/cl_event.h
@@ -23,6 +23,15 @@
 #include "CL/cl.h"
 
 typedef void (CL_CALLBACK *cl_event_notify)(cl_event event, cl_int event_command_exec_status, void *user_data);
+typedef struct _cl_event_user_cb {
+  cl_int status;                  /* The execution status */
+  cl_bool executed;               /* Indicat the callback function been called or not */
+  cl_event_notify pfn_notify;     /* Callback function */
+  void* user_data;                /* Callback user data */
+  struct _cl_event_user_cb* next; /* Next event callback in list */
+} _cl_event_user_cb;
+
+typedef struct _cl_event_user_cb* cl_event_user_cb;
 
 typedef struct _cl_event {
   uint64_t magic;                 /* To identify it as a sampler object */
@@ -32,8 +41,7 @@ typedef struct _cl_event {
   cl_command_queue queue;         /* The command queue associated with event, NULL for usr event */
   cl_command_type type;           /* The command type associated with event */
   cl_int status;                  /* The execution status */
-  cl_event_notify pfn_notify;     /* User set callback. */
-  void* user_data;                /* The user data */
+  cl_event_user_cb user_cb;       /* User set callback. */
   cl_bool user_event;             /* User create event. */
   cl_ulong timestamp[4];          /* The time stamps for profiling. */
   cl_event* wait_events;          /* The events we are waiting for. */