Add test for starpu_data_unregister_lazy

tests/Makefile.am

@@ -176,6 +176,7 @@ noinst_PROGRAMS =				\
 	datawizard/increment_redux_lazy		\
 	datawizard/handle_to_pointer		\
 	datawizard/lazy_allocation		\
+	datawizard/lazy_unregister		\
 	datawizard/interfaces/copy_interfaces	\
 	datawizard/interfaces/block/block_interface \
 	datawizard/interfaces/bcsr/bcsr_interface \

tests/datawizard/lazy_unregister.c

@@ -0,0 +1,71 @@
+/* StarPU --- Runtime system for heterogeneous multicore architectures.
+ *
+ * Copyright (C) 2010, 2011, 2012  Centre National de la Recherche Scientifique
+ *
+ * StarPU is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU Lesser General Public License as published by
+ * the Free Software Foundation; either version 2.1 of the License, or (at
+ * your option) any later version.
+ *
+ * StarPU is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ *
+ * See the GNU Lesser General Public License in COPYING.LGPL for more details.
+ */
+
+#include <config.h>
+#include <starpu.h>
+
+#include "../helper.h"
+
+static void dummy_func(void ** buffers, void * args) {
+}
+
+static struct starpu_codelet dummy_cl =
+{
+	.modes = { STARPU_RW },
+	.cpu_funcs = {fummy_func, NULL},
+	.nbuffers = 1
+};
+
+int main(int argc, char **argv)
+{
+	int i;
+	int ret;
+	int buffer[1024];
+	starpu_data_handle_t handle;
+	struct starpu_task *t1, *t2;
+
+        ret = starpu_init(NULL);
+	if (ret == -ENODEV) return STARPU_TEST_SKIPPED;
+	STARPU_CHECK_RETURN_VALUE(ret, "starpu_init");
+
+	starpu_variable_data_register(&handle, 0, (uintptr_t)buffer, 1024*sizeof(int));
+
+	t1 = starpu_task_create();
+	t2 = starpu_task_create();
+	t1->cl = &dummy_cl;
+	t2->cl = &dummy_cl;
+	t1->handles[0] = handle;
+	t2->handles[0] = handle;
+
+	starpu_task_declare_deps_array(t2, 1, &t1);
+
+	starpu_task_submit(t2);
+	starpu_data_unregister_lazy(handle);
+
+	if (starpu_data_lookup(buffer) == NULL)
+	  return EXIT_FAILURE;
+
+	starpu_task_submit(t1);
+
+	starpu_task_wait(t2);
+
+	if (starpu_data_lookup(buffer) != NULL)
+	  return EXIT_FAILURE;
+
+	starpu_shutdown();
+
+	return EXIT_SUCCESS;
+}