// Copyright (c) 2011 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef BASE_DEBUG_LEAK_ANNOTATIONS_H_
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#define BASE_DEBUG_LEAK_ANNOTATIONS_H_
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#include "base/macros.h"
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#include "build/build_config.h"
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// This file defines macros which can be used to annotate intentional memory
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// leaks. Support for annotations is implemented in LeakSanitizer. Annotated
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// objects will be treated as a source of live pointers, i.e. any heap objects
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// reachable by following pointers from an annotated object will not be
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// reported as leaks.
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//
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// ANNOTATE_SCOPED_MEMORY_LEAK: all allocations made in the current scope
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// will be annotated as leaks.
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// ANNOTATE_LEAKING_OBJECT_PTR(X): the heap object referenced by pointer X will
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// be annotated as a leak.
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#if defined(LEAK_SANITIZER) && !defined(OS_NACL)
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#include <sanitizer/lsan_interface.h>
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class ScopedLeakSanitizerDisabler {
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public:
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ScopedLeakSanitizerDisabler() { __lsan_disable(); }
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~ScopedLeakSanitizerDisabler() { __lsan_enable(); }
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private:
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DISALLOW_COPY_AND_ASSIGN(ScopedLeakSanitizerDisabler);
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};
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#define ANNOTATE_SCOPED_MEMORY_LEAK \
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ScopedLeakSanitizerDisabler leak_sanitizer_disabler; static_cast<void>(0)
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#define ANNOTATE_LEAKING_OBJECT_PTR(X) __lsan_ignore_object(X);
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#else
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#define ANNOTATE_SCOPED_MEMORY_LEAK ((void)0)
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#define ANNOTATE_LEAKING_OBJECT_PTR(X) ((void)0)
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#endif
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#endif // BASE_DEBUG_LEAK_ANNOTATIONS_H_
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