third_party/blink/renderer/platform/heap/handle.h

/*
 * Copyright (C) 2014 Google Inc. 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 Google Inc. 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
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 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_HEAP_HANDLE_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_HEAP_HANDLE_H_

#include "third_party/blink/renderer/platform/heap/heap.h"
#include "third_party/blink/renderer/platform/heap/heap_allocator.h"
#include "third_party/blink/renderer/platform/heap/heap_traits.h"
#include "third_party/blink/renderer/platform/heap/member.h"
#include "third_party/blink/renderer/platform/heap/thread_state.h"
#include "third_party/blink/renderer/platform/heap/trace_traits.h"
#include "third_party/blink/renderer/platform/heap/visitor.h"
#include "third_party/blink/renderer/platform/wtf/allocator.h"
#include "third_party/blink/renderer/platform/wtf/noncopyable.h"

#if defined(LEAK_SANITIZER)
#include "third_party/blink/renderer/platform/wtf/leak_annotations.h"
#endif

namespace blink {

// LEAK_SANITIZER_DISABLED_SCOPE: all allocations made in the current scope
// will be exempted from LSan consideration.
//
// TODO(sof): move this to wtf/LeakAnnotations.h (LeakSanitizer.h?) once
// wtf/ can freely call upon Oilpan functionality.
#if defined(LEAK_SANITIZER)
class LeakSanitizerDisableScope {
  STACK_ALLOCATED();
  WTF_MAKE_NONCOPYABLE(LeakSanitizerDisableScope);

 public:
  LeakSanitizerDisableScope() {
    __lsan_disable();
    if (ThreadState::Current())
      ThreadState::Current()->enterStaticReferenceRegistrationDisabledScope();
  }

  ~LeakSanitizerDisableScope() {
    __lsan_enable();
    if (ThreadState::Current())
      ThreadState::Current()->leaveStaticReferenceRegistrationDisabledScope();
  }
};
#define LEAK_SANITIZER_DISABLED_SCOPE \
  LeakSanitizerDisableScope lsanDisabledScope
#else
#define LEAK_SANITIZER_DISABLED_SCOPE
#endif

}  // namespace blink

#endif