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// Copyright 2009-2010 the V8 project authors. 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
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#include "v8.h"
#include "heap-profiler.h"
#include "profile-generator.h"
namespace v8 {
namespace internal {
HeapProfiler::HeapProfiler()
: snapshots_(new HeapSnapshotsCollection()),
next_snapshot_uid_(1) {
}
HeapProfiler::~HeapProfiler() {
delete snapshots_;
}
void HeapProfiler::ResetSnapshots() {
delete snapshots_;
snapshots_ = new HeapSnapshotsCollection();
}
void HeapProfiler::SetUp() {
Isolate* isolate = Isolate::Current();
if (isolate->heap_profiler() == NULL) {
isolate->set_heap_profiler(new HeapProfiler());
}
}
void HeapProfiler::TearDown() {
Isolate* isolate = Isolate::Current();
delete isolate->heap_profiler();
isolate->set_heap_profiler(NULL);
}
HeapSnapshot* HeapProfiler::TakeSnapshot(const char* name,
int type,
v8::ActivityControl* control) {
ASSERT(Isolate::Current()->heap_profiler() != NULL);
return Isolate::Current()->heap_profiler()->TakeSnapshotImpl(name,
type,
control);
}
HeapSnapshot* HeapProfiler::TakeSnapshot(String* name,
int type,
v8::ActivityControl* control) {
ASSERT(Isolate::Current()->heap_profiler() != NULL);
return Isolate::Current()->heap_profiler()->TakeSnapshotImpl(name,
type,
control);
}
void HeapProfiler::DefineWrapperClass(
uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback) {
ASSERT(class_id != v8::HeapProfiler::kPersistentHandleNoClassId);
if (wrapper_callbacks_.length() <= class_id) {
wrapper_callbacks_.AddBlock(
NULL, class_id - wrapper_callbacks_.length() + 1);
}
wrapper_callbacks_[class_id] = callback;
}
v8::RetainedObjectInfo* HeapProfiler::ExecuteWrapperClassCallback(
uint16_t class_id, Object** wrapper) {
if (wrapper_callbacks_.length() <= class_id) return NULL;
return wrapper_callbacks_[class_id](
class_id, Utils::ToLocal(Handle<Object>(wrapper)));
}
HeapSnapshot* HeapProfiler::TakeSnapshotImpl(const char* name,
int type,
v8::ActivityControl* control) {
HeapSnapshot::Type s_type = static_cast<HeapSnapshot::Type>(type);
HeapSnapshot* result =
snapshots_->NewSnapshot(s_type, name, next_snapshot_uid_++);
bool generation_completed = true;
switch (s_type) {
case HeapSnapshot::kFull: {
HeapSnapshotGenerator generator(result, control);
generation_completed = generator.GenerateSnapshot();
break;
}
default:
UNREACHABLE();
}
if (!generation_completed) {
delete result;
result = NULL;
}
snapshots_->SnapshotGenerationFinished(result);
return result;
}
HeapSnapshot* HeapProfiler::TakeSnapshotImpl(String* name,
int type,
v8::ActivityControl* control) {
return TakeSnapshotImpl(snapshots_->names()->GetName(name), type, control);
}
int HeapProfiler::GetSnapshotsCount() {
HeapProfiler* profiler = Isolate::Current()->heap_profiler();
ASSERT(profiler != NULL);
return profiler->snapshots_->snapshots()->length();
}
HeapSnapshot* HeapProfiler::GetSnapshot(int index) {
HeapProfiler* profiler = Isolate::Current()->heap_profiler();
ASSERT(profiler != NULL);
return profiler->snapshots_->snapshots()->at(index);
}
HeapSnapshot* HeapProfiler::FindSnapshot(unsigned uid) {
HeapProfiler* profiler = Isolate::Current()->heap_profiler();
ASSERT(profiler != NULL);
return profiler->snapshots_->GetSnapshot(uid);
}
void HeapProfiler::DeleteAllSnapshots() {
HeapProfiler* profiler = Isolate::Current()->heap_profiler();
ASSERT(profiler != NULL);
profiler->ResetSnapshots();
}
void HeapProfiler::ObjectMoveEvent(Address from, Address to) {
snapshots_->ObjectMoveEvent(from, to);
}
} } // namespace v8::internal