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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "vm/globals.h"
#include "vm/allocation.h"
namespace dart {
class Mutex;
// Object observing code creation events. Used by external profilers and
// debuggers to map address ranges to function names.
class CodeObserver {
CodeObserver() { }
virtual ~CodeObserver() { }
// Returns true if this observer is active and should be notified
// about newly created code objects.
virtual bool IsActive() const = 0;
// Notify code observer about a newly created code object with the
// given properties.
virtual void Notify(const char* name,
uword base,
uword prologue_offset,
uword size,
bool optimized) = 0;
class CodeObservers : public AllStatic {
static void InitOnce();
static void Register(CodeObserver* observer);
// Notify all active code observers about a newly created code object.
static void NotifyAll(const char* name,
uword base,
uword prologue_offset,
uword size,
bool optimized);
// Returns true if there is at least one active code observer.
static bool AreActive();
static void DeleteAll();
static Mutex* mutex() {
return mutex_;
static Mutex* mutex_;
static intptr_t observers_length_;
static CodeObserver** observers_;
} // namespace dart