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174 lines
5.7 KiB
174 lines
5.7 KiB
// Copyright 2009-2010 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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#include "v8.h"
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#include "heap-profiler.h"
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#include "profile-generator.h"
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namespace v8 {
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namespace internal {
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HeapProfiler::HeapProfiler()
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: snapshots_(new HeapSnapshotsCollection()),
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next_snapshot_uid_(1) {
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}
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HeapProfiler::~HeapProfiler() {
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delete snapshots_;
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}
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void HeapProfiler::ResetSnapshots() {
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delete snapshots_;
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snapshots_ = new HeapSnapshotsCollection();
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}
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void HeapProfiler::Setup() {
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Isolate* isolate = Isolate::Current();
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if (isolate->heap_profiler() == NULL) {
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isolate->set_heap_profiler(new HeapProfiler());
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}
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}
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void HeapProfiler::TearDown() {
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Isolate* isolate = Isolate::Current();
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delete isolate->heap_profiler();
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isolate->set_heap_profiler(NULL);
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}
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HeapSnapshot* HeapProfiler::TakeSnapshot(const char* name,
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int type,
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v8::ActivityControl* control) {
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ASSERT(Isolate::Current()->heap_profiler() != NULL);
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return Isolate::Current()->heap_profiler()->TakeSnapshotImpl(name,
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type,
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control);
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}
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HeapSnapshot* HeapProfiler::TakeSnapshot(String* name,
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int type,
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v8::ActivityControl* control) {
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ASSERT(Isolate::Current()->heap_profiler() != NULL);
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return Isolate::Current()->heap_profiler()->TakeSnapshotImpl(name,
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type,
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control);
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}
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void HeapProfiler::DefineWrapperClass(
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uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback) {
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ASSERT(class_id != v8::HeapProfiler::kPersistentHandleNoClassId);
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if (wrapper_callbacks_.length() <= class_id) {
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wrapper_callbacks_.AddBlock(
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NULL, class_id - wrapper_callbacks_.length() + 1);
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}
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wrapper_callbacks_[class_id] = callback;
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}
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v8::RetainedObjectInfo* HeapProfiler::ExecuteWrapperClassCallback(
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uint16_t class_id, Object** wrapper) {
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if (wrapper_callbacks_.length() <= class_id) return NULL;
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return wrapper_callbacks_[class_id](
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class_id, Utils::ToLocal(Handle<Object>(wrapper)));
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}
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HeapSnapshot* HeapProfiler::TakeSnapshotImpl(const char* name,
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int type,
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v8::ActivityControl* control) {
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HeapSnapshot::Type s_type = static_cast<HeapSnapshot::Type>(type);
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HeapSnapshot* result =
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snapshots_->NewSnapshot(s_type, name, next_snapshot_uid_++);
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bool generation_completed = true;
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switch (s_type) {
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case HeapSnapshot::kFull: {
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HEAP->CollectAllGarbage(true);
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HeapSnapshotGenerator generator(result, control);
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generation_completed = generator.GenerateSnapshot();
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break;
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}
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default:
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UNREACHABLE();
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}
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if (!generation_completed) {
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delete result;
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result = NULL;
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}
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snapshots_->SnapshotGenerationFinished(result);
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return result;
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}
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HeapSnapshot* HeapProfiler::TakeSnapshotImpl(String* name,
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int type,
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v8::ActivityControl* control) {
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return TakeSnapshotImpl(snapshots_->names()->GetName(name), type, control);
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}
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int HeapProfiler::GetSnapshotsCount() {
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HeapProfiler* profiler = Isolate::Current()->heap_profiler();
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ASSERT(profiler != NULL);
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return profiler->snapshots_->snapshots()->length();
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}
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HeapSnapshot* HeapProfiler::GetSnapshot(int index) {
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HeapProfiler* profiler = Isolate::Current()->heap_profiler();
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ASSERT(profiler != NULL);
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return profiler->snapshots_->snapshots()->at(index);
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}
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HeapSnapshot* HeapProfiler::FindSnapshot(unsigned uid) {
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HeapProfiler* profiler = Isolate::Current()->heap_profiler();
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ASSERT(profiler != NULL);
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return profiler->snapshots_->GetSnapshot(uid);
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}
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void HeapProfiler::DeleteAllSnapshots() {
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HeapProfiler* profiler = Isolate::Current()->heap_profiler();
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ASSERT(profiler != NULL);
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profiler->ResetSnapshots();
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}
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void HeapProfiler::ObjectMoveEvent(Address from, Address to) {
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snapshots_->ObjectMoveEvent(from, to);
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}
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} } // namespace v8::internal
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