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| 1 // Copyright 2016 The Chromium Authors. All rights reserved. | 1 // Copyright 2016 The Chromium Authors. All rights reserved. |
| 2 // Use of this source code is governed by a BSD-style license that can be | 2 // Use of this source code is governed by a BSD-style license that can be |
| 3 // found in the LICENSE file. | 3 // found in the LICENSE file. |
| 4 | 4 |
| 5 #include "platform/v8_inspector/V8HeapProfilerAgentImpl.h" | 5 #include "platform/v8_inspector/V8HeapProfilerAgentImpl.h" |
| 6 | 6 |
| 7 #include "platform/v8_inspector/InjectedScript.h" | 7 #include "platform/v8_inspector/InjectedScript.h" |
| 8 #include "platform/v8_inspector/V8DebuggerImpl.h" | 8 #include "platform/v8_inspector/V8DebuggerImpl.h" |
| 9 #include "platform/v8_inspector/V8InspectorSessionImpl.h" | 9 #include "platform/v8_inspector/V8InspectorSessionImpl.h" |
| 10 #include "platform/v8_inspector/V8StringUtil.h" | 10 #include "platform/v8_inspector/V8StringUtil.h" |
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| 38 } | 38 } |
| 39 m_frontend->flush(); | 39 m_frontend->flush(); |
| 40 return kContinue; | 40 return kContinue; |
| 41 } | 41 } |
| 42 private: | 42 private: |
| 43 protocol::HeapProfiler::Frontend* m_frontend; | 43 protocol::HeapProfiler::Frontend* m_frontend; |
| 44 }; | 44 }; |
| 45 | 45 |
| 46 class GlobalObjectNameResolver final : public v8::HeapProfiler::ObjectNameResolv
er { | 46 class GlobalObjectNameResolver final : public v8::HeapProfiler::ObjectNameResolv
er { |
| 47 public: | 47 public: |
| 48 explicit GlobalObjectNameResolver(V8InspectorSessionImpl* session) : m_offse
t(0), m_session(session) | 48 explicit GlobalObjectNameResolver(V8InspectorSessionImpl* session) |
| 49 { | 49 : m_offset(0), m_strings(10000), m_session(session) {} |
| 50 m_strings.resize(10000); | |
| 51 } | |
| 52 | 50 |
| 53 const char* GetName(v8::Local<v8::Object> object) override | 51 const char* GetName(v8::Local<v8::Object> object) override |
| 54 { | 52 { |
| 55 int contextId = V8Debugger::contextId(object->CreationContext()); | 53 int contextId = V8Debugger::contextId(object->CreationContext()); |
| 56 if (!contextId) | 54 if (!contextId) |
| 57 return ""; | 55 return ""; |
| 58 ErrorString errorString; | 56 ErrorString errorString; |
| 59 InjectedScript* injectedScript = m_session->findInjectedScript(&errorStr
ing, contextId); | 57 InjectedScript* injectedScript = m_session->findInjectedScript(&errorStr
ing, contextId); |
| 60 if (!injectedScript) | 58 if (!injectedScript) |
| 61 return ""; | 59 return ""; |
| 62 String16 name = injectedScript->context()->origin(); | 60 String16 name = injectedScript->context()->origin(); |
| 63 size_t length = name.length(); | 61 size_t length = name.length(); |
| 64 if (m_offset + length + 1 >= m_strings.size()) | 62 if (m_offset + length + 1 >= m_strings.size()) |
| 65 return ""; | 63 return ""; |
| 66 for (size_t i = 0; i < length; ++i) { | 64 for (size_t i = 0; i < length; ++i) { |
| 67 UChar ch = name[i]; | 65 UChar ch = name[i]; |
| 68 m_strings[m_offset + i] = ch > 0xff ? '?' : static_cast<char>(ch); | 66 m_strings[m_offset + i] = ch > 0xff ? '?' : static_cast<char>(ch); |
| 69 } | 67 } |
| 70 m_strings[m_offset + length] = '\0'; | 68 m_strings[m_offset + length] = '\0'; |
| 71 char* result = &*m_strings.begin() + m_offset; | 69 char* result = &*m_strings.begin() + m_offset; |
| 72 m_offset += length + 1; | 70 m_offset += length + 1; |
| 73 return result; | 71 return result; |
| 74 } | 72 } |
| 75 | 73 |
| 76 private: | 74 private: |
| 77 size_t m_offset; | 75 size_t m_offset; |
| 78 protocol::Vector<char> m_strings; | 76 std::vector<char> m_strings; |
| 79 V8InspectorSessionImpl* m_session; | 77 V8InspectorSessionImpl* m_session; |
| 80 }; | 78 }; |
| 81 | 79 |
| 82 class HeapSnapshotOutputStream final : public v8::OutputStream { | 80 class HeapSnapshotOutputStream final : public v8::OutputStream { |
| 83 public: | 81 public: |
| 84 HeapSnapshotOutputStream(protocol::HeapProfiler::Frontend* frontend) | 82 HeapSnapshotOutputStream(protocol::HeapProfiler::Frontend* frontend) |
| 85 : m_frontend(frontend) { } | 83 : m_frontend(frontend) { } |
| 86 void EndOfStream() override { } | 84 void EndOfStream() override { } |
| 87 int GetChunkSize() override { return 102400; } | 85 int GetChunkSize() override { return 102400; } |
| 88 WriteResult WriteAsciiChunk(char* data, int size) override | 86 WriteResult WriteAsciiChunk(char* data, int size) override |
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| 392 *errorString = "Cannot access v8 sampled heap profile."; | 390 *errorString = "Cannot access v8 sampled heap profile."; |
| 393 return; | 391 return; |
| 394 } | 392 } |
| 395 v8::AllocationProfile::Node* root = v8Profile->GetRootNode(); | 393 v8::AllocationProfile::Node* root = v8Profile->GetRootNode(); |
| 396 *profile = protocol::HeapProfiler::SamplingHeapProfile::create() | 394 *profile = protocol::HeapProfiler::SamplingHeapProfile::create() |
| 397 .setHead(buildSampingHeapProfileNode(root)).build(); | 395 .setHead(buildSampingHeapProfileNode(root)).build(); |
| 398 #endif | 396 #endif |
| 399 } | 397 } |
| 400 | 398 |
| 401 } // namespace blink | 399 } // namespace blink |
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