cudaStreamWaitEvent tentative implementation

1 files changed, 20 insertions, 0 deletions

diff --git a/libcuda/cuda_runtime_api.cc b/libcuda/cuda_runtime_api.cc
index d971222..a45ed61 100644
--- a/libcuda/cuda_runtime_api.cc
+++ b/libcuda/cuda_runtime_api.cc
@@ -1157,6 +1157,26 @@ __host__ cudaError_t CUDARTAPI cudaStreamQuery(cudaStream_t stream)
 #endif
 }
 
+__host__ cudaError_t CUDARTAPI cudaStreamWaitEvent(cudaStream_t stream, cudaEvent_t event, unsigned int flags)
+{
+
+#if (CUDART_VERSION >= 3000)
+	if( stream == NULL )
+		return g_last_cudaError = cudaErrorInvalidResourceHandle;
+	return g_last_cudaError = stream->empty()?cudaSuccess:cudaErrorNotReady;
+#else
+	printf("GPGPU-Sim API: cudaStreamWaitEvent ** waiting for event\n");
+	fflush(stdout);
+	CUevent_st *e = (CUevent_st*) event;
+	while( !e->done() )
+		;
+	printf("GPGPU-Sim API: cudaStreamWaitEvent ** event detected\n");
+	fflush(stdout);
+	printf("GPGPU-Sim PTX: WARNING: Asynchronous kernel execution not supported (%s)\n", __my_func__);
+	return g_last_cudaError = cudaSuccess; // it is always success because all cuda calls are synchronous
+#endif
+}
+
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