| /* |
| * Copyright (c) 2010, Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are |
| * met: |
| * |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above |
| * copyright notice, this list of conditions and the following disclaimer |
| * in the documentation and/or other materials provided with the |
| * distribution. |
| * * Neither the name of Google Inc. nor the names of its |
| * contributors may be used to endorse or promote products derived from |
| * this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "ScriptProfiler.h" |
| |
| #include "InspectorValues.h" |
| #include "RetainedDOMInfo.h" |
| #include "V8Binding.h" |
| #include "V8Node.h" |
| |
| #include <v8-profiler.h> |
| |
| namespace WebCore { |
| |
| #if ENABLE(INSPECTOR) |
| void ScriptProfiler::start(ScriptState* state, const String& title) |
| { |
| v8::HandleScope hs; |
| v8::CpuProfiler::StartProfiling(v8String(title)); |
| } |
| |
| PassRefPtr<ScriptProfile> ScriptProfiler::stop(ScriptState* state, const String& title) |
| { |
| v8::HandleScope hs; |
| const v8::CpuProfile* profile = state ? |
| v8::CpuProfiler::StopProfiling(v8String(title), state->context()->GetSecurityToken()) : |
| v8::CpuProfiler::StopProfiling(v8String(title)); |
| return profile ? ScriptProfile::create(profile) : 0; |
| } |
| |
| void ScriptProfiler::collectGarbage() |
| { |
| // NOTE : There is currently no direct way to collect memory from the v8 C++ API |
| // but notifying low-memory forces a mark-compact, which is exactly what we want |
| // in this case. |
| v8::V8::LowMemoryNotification(); |
| } |
| |
| namespace { |
| |
| class ActivityControlAdapter : public v8::ActivityControl { |
| public: |
| ActivityControlAdapter(ScriptProfiler::HeapSnapshotProgress* progress) |
| : m_progress(progress), m_firstReport(true) { } |
| ControlOption ReportProgressValue(int done, int total) |
| { |
| ControlOption result = m_progress->isCanceled() ? kAbort : kContinue; |
| if (m_firstReport) { |
| m_firstReport = false; |
| m_progress->Start(total); |
| } else |
| m_progress->Worked(done); |
| if (done >= total) |
| m_progress->Done(); |
| return result; |
| } |
| private: |
| ScriptProfiler::HeapSnapshotProgress* m_progress; |
| bool m_firstReport; |
| }; |
| |
| } // namespace |
| |
| PassRefPtr<ScriptHeapSnapshot> ScriptProfiler::takeHeapSnapshot(const String& title, HeapSnapshotProgress* control) |
| { |
| v8::HandleScope hs; |
| const v8::HeapSnapshot* snapshot = 0; |
| if (control) { |
| ActivityControlAdapter adapter(control); |
| snapshot = v8::HeapProfiler::TakeSnapshot(v8String(title), v8::HeapSnapshot::kFull, &adapter); |
| } else |
| snapshot = v8::HeapProfiler::TakeSnapshot(v8String(title), v8::HeapSnapshot::kAggregated); |
| return snapshot ? ScriptHeapSnapshot::create(snapshot) : 0; |
| } |
| |
| static v8::RetainedObjectInfo* retainedDOMInfo(uint16_t classId, v8::Handle<v8::Value> wrapper) |
| { |
| ASSERT(classId == v8DOMSubtreeClassId); |
| if (!wrapper->IsObject()) |
| return 0; |
| Node* node = V8Node::toNative(wrapper.As<v8::Object>()); |
| return node ? new RetainedDOMInfo(node) : 0; |
| } |
| #endif // ENABLE(INSPECTOR) |
| |
| void ScriptProfiler::initialize() |
| { |
| #if ENABLE(INSPECTOR) |
| v8::HeapProfiler::DefineWrapperClass(v8DOMSubtreeClassId, &retainedDOMInfo); |
| #endif // ENABLE(INSPECTOR) |
| } |
| |
| |
| } // namespace WebCore |