a4506cd3f2
Also split v8-core independent methods from checks.h to base/logging.h and merge v8checks with the rest of checks. The CPU::FlushICache method is moved to CpuFeatures::FlushICache RoundUp and related methods are moved to base/macros.h Remove all layering violations from src/libplatform BUG=none R=jkummerow@chromium.org LOG=n Review URL: https://codereview.chromium.org/358363002 git-svn-id: https://v8.googlecode.com/svn/branches/bleeding_edge@22092 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
87 lines
3.0 KiB
C++
87 lines
3.0 KiB
C++
// Copyright 2006-2008 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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// The common functionality when building with or without snapshots.
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#include "src/v8.h"
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#include "src/api.h"
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#include "src/base/platform/platform.h"
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#include "src/serialize.h"
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#include "src/snapshot.h"
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namespace v8 {
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namespace internal {
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void Snapshot::ReserveSpaceForLinkedInSnapshot(Deserializer* deserializer) {
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deserializer->set_reservation(NEW_SPACE, new_space_used_);
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deserializer->set_reservation(OLD_POINTER_SPACE, pointer_space_used_);
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deserializer->set_reservation(OLD_DATA_SPACE, data_space_used_);
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deserializer->set_reservation(CODE_SPACE, code_space_used_);
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deserializer->set_reservation(MAP_SPACE, map_space_used_);
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deserializer->set_reservation(CELL_SPACE, cell_space_used_);
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deserializer->set_reservation(PROPERTY_CELL_SPACE,
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property_cell_space_used_);
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}
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bool Snapshot::Initialize() {
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if (size_ > 0) {
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base::ElapsedTimer timer;
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if (FLAG_profile_deserialization) {
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timer.Start();
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}
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SnapshotByteSource source(raw_data_, raw_size_);
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Deserializer deserializer(&source);
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ReserveSpaceForLinkedInSnapshot(&deserializer);
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bool success = V8::Initialize(&deserializer);
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if (FLAG_profile_deserialization) {
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double ms = timer.Elapsed().InMillisecondsF();
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PrintF("[Snapshot loading and deserialization took %0.3f ms]\n", ms);
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}
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return success;
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}
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return false;
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}
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bool Snapshot::HaveASnapshotToStartFrom() {
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return size_ != 0;
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}
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Handle<Context> Snapshot::NewContextFromSnapshot(Isolate* isolate) {
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if (context_size_ == 0) {
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return Handle<Context>();
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}
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SnapshotByteSource source(context_raw_data_,
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context_raw_size_);
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Deserializer deserializer(&source);
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Object* root;
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deserializer.set_reservation(NEW_SPACE, context_new_space_used_);
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deserializer.set_reservation(OLD_POINTER_SPACE, context_pointer_space_used_);
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deserializer.set_reservation(OLD_DATA_SPACE, context_data_space_used_);
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deserializer.set_reservation(CODE_SPACE, context_code_space_used_);
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deserializer.set_reservation(MAP_SPACE, context_map_space_used_);
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deserializer.set_reservation(CELL_SPACE, context_cell_space_used_);
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deserializer.set_reservation(PROPERTY_CELL_SPACE,
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context_property_cell_space_used_);
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deserializer.DeserializePartial(isolate, &root);
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CHECK(root->IsContext());
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return Handle<Context>(Context::cast(root));
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}
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#ifdef V8_USE_EXTERNAL_STARTUP_DATA
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// Dummy implementations of Set*FromFile(..) APIs.
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//
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// These are meant for use with snapshot-external.cc. Should this file
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// be compiled with those options we just supply these dummy implementations
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// below. This happens when compiling the mksnapshot utility.
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void SetNativesFromFile(StartupData* data) { CHECK(false); }
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void SetSnapshotFromFile(StartupData* data) { CHECK(false); }
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#endif // V8_USE_EXTERNAL_STARTUP_DATA
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} } // namespace v8::internal
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