be014256ad
Bug: v8:9247 Change-Id: I9bcf2694b449f79cdbe03f5fde59cb21b8cad418 Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/1619758 Commit-Queue: Yang Guo <yangguo@chromium.org> Reviewed-by: Michael Lippautz <mlippautz@chromium.org> Reviewed-by: Andreas Haas <ahaas@chromium.org> Reviewed-by: Georg Neis <neis@chromium.org> Cr-Commit-Position: refs/heads/master@{#61676}
74 lines
2.2 KiB
C++
74 lines
2.2 KiB
C++
// 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/strings/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 { return to_entry_->isolate(); }
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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::set_children_index(int index) {
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// Note: children_count_ and children_end_index_ are parts of a union.
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int next_index = index + children_count_;
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children_end_index_ = index;
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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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snapshot_->children()[children_end_index_++] = edge;
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}
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HeapGraphEdge* HeapEntry::child(int i) { return children_begin()[i]; }
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std::vector<HeapGraphEdge*>::iterator HeapEntry::children_begin() const {
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return index_ == 0 ? snapshot_->children().begin()
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: snapshot_->entries()[index_ - 1].children_end();
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}
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std::vector<HeapGraphEdge*>::iterator HeapEntry::children_end() const {
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DCHECK_GE(children_end_index_, 0);
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return snapshot_->children().begin() + children_end_index_;
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}
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int HeapEntry::children_count() const {
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return static_cast<int>(children_end() - children_begin());
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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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