1 /*
2 * Copyright (c) 2010, Google Inc. All rights reserved.
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions are
6 * met:
7 *
8 * * Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * * Redistributions in binary form must reproduce the above
11 * copyright notice, this list of conditions and the following disclaimer
12 * in the documentation and/or other materials provided with the
13 * distribution.
14 * * Neither the name of Google Inc. nor the names of its
15 * contributors may be used to endorse or promote products derived from
16 * this software without specific prior written permission.
17 *
18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
29 */
30
31 #include "config.h"
32 #include "bindings/v8/ScriptHeapSnapshot.h"
33
34 #include "bindings/v8/V8Binding.h"
35 #include "platform/JSONValues.h"
36 #include <v8.h>
37 #include <v8-profiler.h>
38 #include "wtf/PassRefPtr.h"
39 #include "wtf/RefPtr.h"
40
41 namespace WebCore {
42
~ScriptHeapSnapshot()43 ScriptHeapSnapshot::~ScriptHeapSnapshot()
44 {
45 const_cast<v8::HeapSnapshot*>(m_snapshot)->Delete();
46 }
47
title() const48 String ScriptHeapSnapshot::title() const
49 {
50 v8::HandleScope scope(v8::Isolate::GetCurrent());
51 return toCoreString(m_snapshot->GetTitle());
52 }
53
uid() const54 unsigned int ScriptHeapSnapshot::uid() const
55 {
56 return m_snapshot->GetUid();
57 }
58
maxSnapshotJSObjectId() const59 SnapshotObjectId ScriptHeapSnapshot::maxSnapshotJSObjectId() const
60 {
61 return m_snapshot->GetMaxSnapshotJSObjectId();
62 }
63
64 namespace {
65
66 class OutputStreamAdapter : public v8::OutputStream {
67 public:
OutputStreamAdapter(ScriptHeapSnapshot::OutputStream * output)68 OutputStreamAdapter(ScriptHeapSnapshot::OutputStream* output)
69 : m_output(output) { }
EndOfStream()70 void EndOfStream() { m_output->Close(); }
GetChunkSize()71 int GetChunkSize() { return 102400; }
WriteAsciiChunk(char * data,int size)72 WriteResult WriteAsciiChunk(char* data, int size)
73 {
74 m_output->Write(String(data, size));
75 return kContinue;
76 }
77 private:
78 ScriptHeapSnapshot::OutputStream* m_output;
79 };
80
81 } // namespace
82
writeJSON(ScriptHeapSnapshot::OutputStream * stream)83 void ScriptHeapSnapshot::writeJSON(ScriptHeapSnapshot::OutputStream* stream)
84 {
85 OutputStreamAdapter outputStream(stream);
86 m_snapshot->Serialize(&outputStream, v8::HeapSnapshot::kJSON);
87 }
88
89 } // namespace WebCore
90