Move heap and CPU profilers into a dedicated directory.

src/heap-profiler.cc

-// Copyright 2009-2010 the V8 project authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "src/heap-profiler.h"
-
-#include "src/allocation-tracker.h"
-#include "src/api.h"
-#include "src/heap-snapshot-generator-inl.h"
-
-namespace v8 {
-namespace internal {
-
-HeapProfiler::HeapProfiler(Heap* heap)
-    : ids_(new HeapObjectsMap(heap)),
-      names_(new StringsStorage(heap)),
-      is_tracking_object_moves_(false) {
-}
-
-
-static void DeleteHeapSnapshot(HeapSnapshot** snapshot_ptr) {
-  delete *snapshot_ptr;
-}
-
-
-HeapProfiler::~HeapProfiler() {
-  snapshots_.Iterate(DeleteHeapSnapshot);
-  snapshots_.Clear();
-}
-
-
-void HeapProfiler::DeleteAllSnapshots() {
-  snapshots_.Iterate(DeleteHeapSnapshot);
-  snapshots_.Clear();
-  names_.Reset(new StringsStorage(heap()));
-}
-
-
-void HeapProfiler::RemoveSnapshot(HeapSnapshot* snapshot) {
-  snapshots_.RemoveElement(snapshot);
-}
-
-
-void HeapProfiler::DefineWrapperClass(
-    uint16_t class_id, v8::HeapProfiler::WrapperInfoCallback callback) {
-  DCHECK(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(
-    v8::ActivityControl* control,
-    v8::HeapProfiler::ObjectNameResolver* resolver) {
-  HeapSnapshot* result = new HeapSnapshot(this);
-  {
-    HeapSnapshotGenerator generator(result, control, resolver, heap());
-    if (!generator.GenerateSnapshot()) {
-      delete result;
-      result = NULL;
-    } else {
-      snapshots_.Add(result);
-    }
-  }
-  ids_->RemoveDeadEntries();
-  is_tracking_object_moves_ = true;
-  return result;
-}
-
-
-void HeapProfiler::StartHeapObjectsTracking(bool track_allocations) {
-  ids_->UpdateHeapObjectsMap();
-  is_tracking_object_moves_ = true;
-  DCHECK(!is_tracking_allocations());
-  if (track_allocations) {
-    allocation_tracker_.Reset(new AllocationTracker(ids_.get(), names_.get()));
-    heap()->DisableInlineAllocation();
-  }
-}
-
-
-SnapshotObjectId HeapProfiler::PushHeapObjectsStats(OutputStream* stream,
-                                                    int64_t* timestamp_us) {
-  return ids_->PushHeapObjectsStats(stream, timestamp_us);
-}
-
-
-void HeapProfiler::StopHeapObjectsTracking() {
-  ids_->StopHeapObjectsTracking();
-  if (is_tracking_allocations()) {
-    allocation_tracker_.Reset(NULL);
-    heap()->EnableInlineAllocation();
-  }
-}
-
-
-size_t HeapProfiler::GetMemorySizeUsedByProfiler() {
-  size_t size = sizeof(*this);
-  size += names_->GetUsedMemorySize();
-  size += ids_->GetUsedMemorySize();
-  size += GetMemoryUsedByList(snapshots_);
-  for (int i = 0; i < snapshots_.length(); ++i) {
-    size += snapshots_[i]->RawSnapshotSize();
-  }
-  return size;
-}
-
-
-int HeapProfiler::GetSnapshotsCount() {
-  return snapshots_.length();
-}
-
-
-HeapSnapshot* HeapProfiler::GetSnapshot(int index) {
-  return snapshots_.at(index);
-}
-
-
-SnapshotObjectId HeapProfiler::GetSnapshotObjectId(Handle<Object> obj) {
-  if (!obj->IsHeapObject())
-    return v8::HeapProfiler::kUnknownObjectId;
-  return ids_->FindEntry(HeapObject::cast(*obj)->address());
-}
-
-
-void HeapProfiler::ObjectMoveEvent(Address from, Address to, int size) {
-  base::LockGuard<base::Mutex> guard(&profiler_mutex_);
-  bool known_object = ids_->MoveObject(from, to, size);
-  if (!known_object && !allocation_tracker_.is_empty()) {
-    allocation_tracker_->address_to_trace()->MoveObject(from, to, size);
-  }
-}
-
-
-void HeapProfiler::AllocationEvent(Address addr, int size) {
-  DisallowHeapAllocation no_allocation;
-  if (!allocation_tracker_.is_empty()) {
-    allocation_tracker_->AllocationEvent(addr, size);
-  }
-}
-
-
-void HeapProfiler::UpdateObjectSizeEvent(Address addr, int size) {
-  ids_->UpdateObjectSize(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);
-}
-
-
-Handle<HeapObject> HeapProfiler::FindHeapObjectById(SnapshotObjectId id) {
-  HeapObject* object = NULL;
-  HeapIterator iterator(heap(), HeapIterator::kFilterUnreachable);
-  // Make sure that object with the given id is still reachable.
-  for (HeapObject* obj = iterator.next();
-       obj != NULL;
-       obj = iterator.next()) {
-    if (ids_->FindEntry(obj->address()) == id) {
-      DCHECK(object == NULL);
-      object = obj;
-      // Can't break -- kFilterUnreachable requires full heap traversal.
-    }
-  }
-  return object != NULL ? Handle<HeapObject>(object) : Handle<HeapObject>();
-}
-
-
-void HeapProfiler::ClearHeapObjectMap() {
-  ids_.Reset(new HeapObjectsMap(heap()));
-  if (!is_tracking_allocations()) is_tracking_object_moves_ = false;
-}
-
-
-Heap* HeapProfiler::heap() const { return ids_->heap(); }
-
-
-}  // namespace internal
-}  // namespace v8