Clement Skau
844626c4e6
Dart_CodeObserver is a struct (in dart_api.h) with two pointers: void* data; void (*Dart_OnNewCodeCallback)(...) on_new_code; Change-Id: I556b73e0e3488a10f9fd162af24e36ad4f240fa1 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/111723 Reviewed-by: Martin Kustermann <kustermann@google.com> Commit-Queue: Clement Skau <cskau@google.com>
94 lines
2.5 KiB
C++
94 lines
2.5 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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#include "vm/code_observers.h"
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#include "vm/os.h"
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#include "vm/os_thread.h"
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namespace dart {
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#ifndef PRODUCT
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Mutex* CodeObservers::mutex_ = NULL;
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intptr_t CodeObservers::observers_length_ = 0;
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CodeObserver** CodeObservers::observers_ = NULL;
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class ExternalCodeObserverAdapter : public CodeObserver {
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public:
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explicit ExternalCodeObserverAdapter(Dart_CodeObserver delegate)
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: delegate_(delegate) {}
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virtual bool IsActive() const { return true; }
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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,
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const CodeComments* comments) {
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return delegate_.on_new_code(&delegate_, name, base, size);
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}
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private:
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Dart_CodeObserver delegate_;
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};
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void CodeObservers::RegisterExternal(Dart_CodeObserver observer) {
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Register(new ExternalCodeObserverAdapter(observer));
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}
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void CodeObservers::Register(CodeObserver* observer) {
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observers_length_++;
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observers_ = reinterpret_cast<CodeObserver**>(
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realloc(observers_, sizeof(observer) * observers_length_));
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if (observers_ == NULL) {
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FATAL("failed to grow code observers array");
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}
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observers_[observers_length_ - 1] = observer;
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}
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void CodeObservers::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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const CodeComments* comments) {
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ASSERT(!AreActive() || (strlen(name) != 0));
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for (intptr_t i = 0; i < observers_length_; i++) {
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if (observers_[i]->IsActive()) {
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observers_[i]->Notify(name, base, prologue_offset, size, optimized,
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comments);
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}
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}
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}
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bool CodeObservers::AreActive() {
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for (intptr_t i = 0; i < observers_length_; i++) {
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if (observers_[i]->IsActive()) return true;
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}
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return false;
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}
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void CodeObservers::Cleanup() {
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for (intptr_t i = 0; i < observers_length_; i++) {
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delete observers_[i];
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}
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free(observers_);
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observers_length_ = 0;
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observers_ = NULL;
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}
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void CodeObservers::Init() {
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if (mutex_ == NULL) {
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mutex_ = new Mutex();
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}
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ASSERT(mutex_ != NULL);
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OS::RegisterCodeObservers();
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}
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#endif // !PRODUCT
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} // namespace dart
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