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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 "heap-snapshot-generator-inl.h"
namespace v8 {
namespace internal {
HeapProfiler::HeapProfiler(Heap* heap)
: snapshots_(new HeapSnapshotsCollection(heap)),
next_snapshot_uid_(1),
is_tracking_allocations_(false),
is_tracking_object_moves_(false) {
}
HeapProfiler::~HeapProfiler() {
delete snapshots_;
}
void HeapProfiler::DeleteAllSnapshots() {
Heap* the_heap = heap();
delete snapshots_;
snapshots_ = new HeapSnapshotsCollection(the_heap);
}
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::TakeSnapshot(
const char* name,
v8::ActivityControl* control,
v8::HeapProfiler::ObjectNameResolver* resolver) {
HeapSnapshot* result = snapshots_->NewSnapshot(name, next_snapshot_uid_++);
{
HeapSnapshotGenerator generator(result, control, resolver, heap());
if (!generator.GenerateSnapshot()) {
delete result;
result = NULL;
}
}
snapshots_->SnapshotGenerationFinished(result);
is_tracking_object_moves_ = true;
return result;
}
HeapSnapshot* HeapProfiler::TakeSnapshot(
String* name,
v8::ActivityControl* control,
v8::HeapProfiler::ObjectNameResolver* resolver) {
return TakeSnapshot(snapshots_->names()->GetName(name), control, resolver);
}
void HeapProfiler::StartHeapObjectsTracking(bool track_allocations) {
snapshots_->StartHeapObjectsTracking(track_allocations);
is_tracking_object_moves_ = true;
ASSERT(!is_tracking_allocations_);
if (track_allocations) {
heap()->DisableInlineAllocation();
is_tracking_allocations_ = true;
}
}
SnapshotObjectId HeapProfiler::PushHeapObjectsStats(OutputStream* stream) {
return snapshots_->PushHeapObjectsStats(stream);
}
void HeapProfiler::StopHeapObjectsTracking() {
snapshots_->StopHeapObjectsTracking();
if (is_tracking_allocations_) {
heap()->EnableInlineAllocation();
is_tracking_allocations_ = false;
}
}
size_t HeapProfiler::GetMemorySizeUsedByProfiler() {
return snapshots_->GetUsedMemorySize();
}
int HeapProfiler::GetSnapshotsCount() {
return snapshots_->snapshots()->length();
}
HeapSnapshot* HeapProfiler::GetSnapshot(int index) {
return snapshots_->snapshots()->at(index);
}
SnapshotObjectId HeapProfiler::GetSnapshotObjectId(Handle<Object> obj) {
if (!obj->IsHeapObject())
return v8::HeapProfiler::kUnknownObjectId;
return snapshots_->FindObjectId(HeapObject::cast(*obj)->address());
}
void HeapProfiler::ObjectMoveEvent(Address from, Address to, int size) {
snapshots_->ObjectMoveEvent(from, to, size);
}
void HeapProfiler::AllocationEvent(Address addr, int size) {
snapshots_->AllocationEvent(addr, size);
}
void HeapProfiler::UpdateObjectSizeEvent(Address addr, int size) {
snapshots_->UpdateObjectSizeEvent(addr, size);
}
void HeapProfiler::SetRetainedObjectInfo(UniqueId id,
RetainedObjectInfo* info) {
// TODO(yurus, marja): Don't route this information through GlobalHandles.
heap()->isolate()->global_handles()->SetRetainedObjectInfo(id, info);
}
} } // namespace v8::internal