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// Copyright 2006-2008 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/isolate.h"
#ifndef V8_SNAPSHOT_H_
#define V8_SNAPSHOT_H_
namespace v8 {
namespace internal {
class Snapshot {
public:
// Initialize the VM from the given snapshot file. If snapshot_file is
// NULL, use the internal snapshot instead. Returns false if no snapshot
// could be found.
static bool Initialize(const char* snapshot_file = NULL);
static bool HaveASnapshotToStartFrom();
// Create a new context using the internal partial snapshot.
static Handle<Context> NewContextFromSnapshot(Isolate* isolate);
// Returns whether or not the snapshot is enabled.
static bool IsEnabled() { return size_ != 0; }
// Write snapshot to the given file. Returns true if snapshot was written
// successfully.
static bool WriteToFile(const char* snapshot_file);
static const byte* data() { return data_; }
static int size() { return size_; }
static int raw_size() { return raw_size_; }
static void set_raw_data(const byte* raw_data) {
raw_data_ = raw_data;
}
static const byte* context_data() { return context_data_; }
static int context_size() { return context_size_; }
static int context_raw_size() { return context_raw_size_; }
static void set_context_raw_data(
const byte* context_raw_data) {
context_raw_data_ = context_raw_data;
}
private:
static const byte data_[];
static const byte* raw_data_;
static const byte context_data_[];
static const byte* context_raw_data_;
static const int new_space_used_;
static const int pointer_space_used_;
static const int data_space_used_;
static const int code_space_used_;
static const int map_space_used_;
static const int cell_space_used_;
static const int property_cell_space_used_;
static const int context_new_space_used_;
static const int context_pointer_space_used_;
static const int context_data_space_used_;
static const int context_code_space_used_;
static const int context_map_space_used_;
static const int context_cell_space_used_;
static const int context_property_cell_space_used_;
static const int size_;
static const int raw_size_;
static const int context_size_;
static const int context_raw_size_;
static void ReserveSpaceForLinkedInSnapshot(Deserializer* deserializer);
DISALLOW_IMPLICIT_CONSTRUCTORS(Snapshot);
};
} } // namespace v8::internal
#endif // V8_SNAPSHOT_H_
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