// Copyright 2013 the V8 project authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef V8_PROFILER_HEAP_SNAPSHOT_GENERATOR_INL_H_
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#define V8_PROFILER_HEAP_SNAPSHOT_GENERATOR_INL_H_
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#include "src/profiler/heap-snapshot-generator.h"
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#include "src/profiler/heap-profiler.h"
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#include "src/string-hasher-inl.h"
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namespace v8 {
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namespace internal {
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HeapEntry* HeapGraphEdge::from() const {
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return &snapshot()->entries()[from_index()];
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}
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Isolate* HeapGraphEdge::isolate() const {
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return snapshot()->profiler()->isolate();
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}
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HeapSnapshot* HeapGraphEdge::snapshot() const {
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return to_entry_->snapshot();
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}
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int HeapEntry::index() const {
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return static_cast<int>(this - &snapshot_->entries().front());
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}
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int HeapEntry::set_children_index(int index) {
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children_index_ = index;
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int next_index = index + children_count_;
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children_count_ = 0;
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return next_index;
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}
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void HeapEntry::add_child(HeapGraphEdge* edge) {
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*(children_begin() + children_count_++) = edge;
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}
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HeapGraphEdge* HeapEntry::child(int i) { return *(children_begin() + i); }
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std::deque<HeapGraphEdge*>::iterator HeapEntry::children_begin() {
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DCHECK_GE(children_index_, 0);
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SLOW_DCHECK(
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children_index_ < static_cast<int>(snapshot_->children().size()) ||
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(children_index_ == static_cast<int>(snapshot_->children().size()) &&
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children_count_ == 0));
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return snapshot_->children().begin() + children_index_;
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}
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std::deque<HeapGraphEdge*>::iterator HeapEntry::children_end() {
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return children_begin() + children_count_;
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}
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Isolate* HeapEntry::isolate() const { return snapshot_->profiler()->isolate(); }
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uint32_t HeapSnapshotJSONSerializer::StringHash(const void* string) {
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const char* s = reinterpret_cast<const char*>(string);
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int len = static_cast<int>(strlen(s));
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return StringHasher::HashSequentialString(s, len,
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v8::internal::kZeroHashSeed);
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}
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int HeapSnapshotJSONSerializer::to_node_index(const HeapEntry* e) {
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return to_node_index(e->index());
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}
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int HeapSnapshotJSONSerializer::to_node_index(int entry_index) {
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return entry_index * kNodeFieldsCount;
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}
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} // namespace internal
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} // namespace v8
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#endif // V8_PROFILER_HEAP_SNAPSHOT_GENERATOR_INL_H_
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