vegorov@google.com
132bdc6bfb
R=iposva@google.com BUG= Review URL: https://codereview.chromium.org//11412106 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@15517 260f80e4-7a28-3924-810f-c04153c831b5
57 lines
1.5 KiB
C++
57 lines
1.5 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#ifndef VM_CODE_OBSERVERS_H_
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#define VM_CODE_OBSERVERS_H_
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#include "vm/globals.h"
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namespace dart {
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// Object observing code creation events. Used by external profilers and
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// debuggers to map address ranges to function names.
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class CodeObserver {
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public:
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virtual ~CodeObserver() { }
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// Returns true if this observer is active and should be notified
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// about newly created code objects.
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virtual bool IsActive() const = 0;
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// Notify code observer about a newly created code object with the
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// given properties.
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virtual void Notify(const char* name,
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uword base,
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uword prologue_offset,
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uword size,
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bool optimized) = 0;
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};
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class CodeObservers {
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public:
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static void InitOnce();
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static void Register(CodeObserver* observer);
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// Notify all active code observers about a newly created code object.
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static void NotifyAll(const char* name,
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uword base,
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uword prologue_offset,
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uword size,
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bool optimized);
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// Returns true if there is at least one active code observer.
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static bool AreActive();
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private:
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static intptr_t observers_length_;
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static CodeObserver** observers_;
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};
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} // namespace dart
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#endif // VM_CODE_OBSERVERS_H_
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