1 files changed, 117 insertions, 0 deletions
diff --git a/src/spdk/include/spdk_internal/mock.h b/src/spdk/include/spdk_internal/mock.h
new file mode 100644
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+++ b/src/spdk/include/spdk_internal/mock.h
@@ -0,0 +1,117 @@
+/*-
+ *   BSD LICENSE
+ *
+ *   Copyright (c) Intel Corporation.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in
+ *       the documentation and/or other materials provided with the
+ *       distribution.
+ *     * Neither the name of Intel Corporation nor the names of its
+ *       contributors may be used to endorse or promote products derived
+ *       from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ *   OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef SPDK_INTERNAL_MOCK_H
+#define SPDK_INTERNAL_MOCK_H
+
+#include "spdk/stdinc.h"
+
+#define MOCK_STRUCT_INIT(...) \
+	{ __VA_ARGS__ }
+
+#define DEFINE_RETURN_MOCK(fn, ret) \
+	bool ut_ ## fn ## _mocked = false; \
+	ret ut_ ## fn
+
+/*
+ * For controlling mocked function behavior, setting
+ * and getting values from the stub, the _P macros are
+ * for mocking functions that return pointer values.
+ */
+#define MOCK_SET(fn, val) \
+	ut_ ## fn ## _mocked = true; \
+	ut_ ## fn = val
+
+#define MOCK_GET(fn) \
+	ut_ ## fn
+
+#define MOCK_CLEAR(fn) \
+	ut_ ## fn ## _mocked = false;
+
+#define MOCK_CLEAR_P(fn) \
+	ut_ ## fn ## _mocked = false; \
+	ut_ ## fn = NULL;
+
+/* for declaring function protoypes for wrappers */
+#define DECLARE_WRAPPER(fn, ret, args) \
+	extern bool ut_ ## fn ## _mocked; \
+	extern ret ut_ ## fn; \
+	ret __wrap_ ## fn args; ret __real_ ## fn args;
+
+/* for defining the implmentation of wrappers for syscalls */
+#define DEFINE_WRAPPER(fn, ret, dargs, pargs) \
+	DEFINE_RETURN_MOCK(fn, ret); \
+	__attribute__((used)) ret __wrap_ ## fn dargs \
+	{ \
+		if (!ut_ ## fn ## _mocked) { \
+			return __real_ ## fn pargs; \
+		} else { \
+			return MOCK_GET(fn); \
+		} \
+	}
+
+/* DEFINE_STUB is for defining the implmentation of stubs for SPDK funcs. */
+#define DEFINE_STUB(fn, ret, dargs, val) \
+	bool ut_ ## fn ## _mocked = true; \
+	ret ut_ ## fn = val; \
+	ret fn dargs; \
+	ret fn dargs \
+	{ \
+		return MOCK_GET(fn); \
+	}
+
+/* DEFINE_STUB_V macro is for stubs that don't have a return value */
+#define DEFINE_STUB_V(fn, dargs) \
+	void fn dargs; \
+	void fn dargs \
+	{ \
+	}
+
+#define HANDLE_RETURN_MOCK(fn) \
+	if (ut_ ## fn ## _mocked) { \
+		return ut_ ## fn; \
+	}
+
+
+/* declare wrapper protos (alphabetically please) here */
+DECLARE_WRAPPER(calloc, void *, (size_t nmemb, size_t size));
+
+DECLARE_WRAPPER(pthread_mutex_init, int,
+		(pthread_mutex_t *mtx, const pthread_mutexattr_t *attr));
+
+DECLARE_WRAPPER(pthread_mutexattr_init, int,
+		(pthread_mutexattr_t *attr));
+
+DECLARE_WRAPPER(pthread_self, pthread_t, (void));
+
+#endif /* SPDK_INTERNAL_MOCK_H */