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83 lines
3.0 KiB
83 lines
3.0 KiB
// Copyright 2006-2008 the V8 project authors. All rights reserved.
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// Redistribution and use in source and binary forms, with or without
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// modification, are permitted provided that the following conditions are
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// met:
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//
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// * Redistributions of source code must retain the above copyright
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// notice, this list of conditions and the following disclaimer.
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// * Redistributions in binary form must reproduce the above
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// copyright notice, this list of conditions and the following
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// disclaimer in the documentation and/or other materials provided
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// with the distribution.
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// * Neither the name of Google Inc. nor the names of its
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// contributors may be used to endorse or promote products derived
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// from this software without specific prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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// The common functionality when building with or without snapshots.
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#include "v8.h"
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#include "api.h"
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#include "serialize.h"
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#include "snapshot.h"
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#include "platform.h"
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namespace v8 {
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namespace internal {
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bool Snapshot::Deserialize(const byte* content, int len) {
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SnapshotByteSource source(content, len);
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Deserializer deserializer(&source);
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return V8::Initialize(&deserializer);
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}
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bool Snapshot::Initialize(const char* snapshot_file) {
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if (snapshot_file) {
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int len;
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byte* str = ReadBytes(snapshot_file, &len);
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if (!str) return false;
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Deserialize(str, len);
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DeleteArray(str);
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return true;
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} else if (size_ > 0) {
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Deserialize(raw_data_, raw_size_);
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return true;
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}
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return false;
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}
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Handle<Context> Snapshot::NewContextFromSnapshot() {
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if (context_size_ == 0) {
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return Handle<Context>();
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}
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HEAP->ReserveSpace(new_space_used_,
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pointer_space_used_,
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data_space_used_,
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code_space_used_,
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map_space_used_,
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cell_space_used_,
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large_space_used_);
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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.DeserializePartial(&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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} } // namespace v8::internal
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