ec58c05f4e
This is for mobile platforms where application footprint size is important. To avoid including compression libraries into V8, we assume that the host machine have them (true for Linux), and rely on embedder to provide decompressed data. Currently, only snapshot data can be comressed. It is also possible to compress libraries sources, but it is more involved and will be addressed in another CL. BUG=none TEST=none Review URL: http://codereview.chromium.org/6901090 git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@7724 ce2b1a6d-e550-0410-aec6-3dcde31c8c00
84 lines
3.0 KiB
C++
84 lines
3.0 KiB
C++
// 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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