1 files changed, 22 insertions, 0 deletions
diff --git a/src/cmd/cgo/internal/test/cthread_windows.c b/src/cmd/cgo/internal/test/cthread_windows.c
index 3a62ddd373..4e52209dee 100644
--- a/src/cmd/cgo/internal/test/cthread_windows.c
+++ b/src/cmd/cgo/internal/test/cthread_windows.c
@@ -35,3 +35,25 @@ doAdd(int max, int nthread)
 		CloseHandle((HANDLE)thread_id[i]);
 	}
 }
+
+__stdcall
+static unsigned int
+goDummyCallbackThread(void* p)
+{
+	int i, max;
+
+	max = *(int*)p;
+	for(i=0; i<max; i++)
+		goDummy();
+	return 0;
+}
+
+int
+callGoInCThread(int max)
+{
+	uintptr_t thread_id;
+	thread_id = _beginthreadex(0, 0, goDummyCallbackThread, &max, 0, 0);
+	WaitForSingleObject((HANDLE)thread_id, INFINITE);
+	CloseHandle((HANDLE)thread_id);
+	return max;
+}