event

2 files changed, 11 insertions, 3 deletions

diff --git a/backend/src/driver/cl_gen_command_queue.cpp b/backend/src/driver/cl_gen_command_queue.cpp
index b514df88..bfd7ce89 100644
--- a/backend/src/driver/cl_gen_command_queue.cpp
+++ b/backend/src/driver/cl_gen_command_queue.cpp
@@ -20,6 +20,7 @@
 extern "C" {  // for the C header files
 #endif /* __cplusplus */
 #include <string.h>
+#include "cl_event.h"
 #include "cl_command_queue.h"
 #include "cl_gen_driver.h"
 #ifdef __cplusplus
@@ -29,9 +30,16 @@ extern "C" {  // for the C header files
 #include "sys/alloc.hpp"
 #include "cl_gen_driver.hpp"
 
-bool GenGPUWorkItem::isReady(void)
+cl_int GenGPUWorkItem::isReady(void)
 {
-  return true;
+  for (auto e : dependEvents) {
+    if (e->status > CL_COMPLETE)
+      return 1;
+    if (e->status < 0)
+      return -1;
+  }
+
+  return 0;
 }
 
 GenGPUWorkItem::GenGPUWorkItem(cl_event event, const cl_event* dependEvents, cl_uint num_events)
diff --git a/backend/src/driver/cl_gen_driver.hpp b/backend/src/driver/cl_gen_driver.hpp
index e08ee297..b377b82d 100644
--- a/backend/src/driver/cl_gen_driver.hpp
+++ b/backend/src/driver/cl_gen_driver.hpp
@@ -229,7 +229,7 @@ struct GenGPUWorkItem {       // Represent Some real work for GPU to do.
   GenGPUWorkItem(cl_event event, const cl_event* dependEvents, cl_uint num_events);
   virtual bool submit(void) = 0;
   virtual bool complete(void) = 0;
-  virtual bool isReady(void);
+  virtual cl_int isReady(void); // >0 means ready, =0 means not ready, <0 means error and cancel
   virtual ~GenGPUWorkItem() { };
 };