| /* |
| * Copyright (C) 2013 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. |
| */ |
| |
| #ifndef AsyncCallStackTracker_h |
| #define AsyncCallStackTracker_h |
| |
| #include "bindings/v8/ScriptValue.h" |
| #include "wtf/Deque.h" |
| #include "wtf/HashMap.h" |
| #include "wtf/HashSet.h" |
| #include "wtf/Noncopyable.h" |
| #include "wtf/PassRefPtr.h" |
| #include "wtf/RefPtr.h" |
| |
| namespace WebCore { |
| |
| class ExecutionContext; |
| |
| class AsyncCallStackTracker { |
| WTF_MAKE_NONCOPYABLE(AsyncCallStackTracker); |
| public: |
| class AsyncCallStack : public RefCounted<AsyncCallStack> { |
| public: |
| AsyncCallStack(const String&, const ScriptValue&); |
| ~AsyncCallStack(); |
| String description() const { return m_description; } |
| ScriptValue callFrames() const { return m_callFrames; } |
| private: |
| String m_description; |
| ScriptValue m_callFrames; |
| }; |
| |
| typedef Deque<RefPtr<AsyncCallStack>, 4> AsyncCallStackVector; |
| |
| class AsyncCallChain : public RefCounted<AsyncCallChain> { |
| public: |
| AsyncCallChain() { } |
| AsyncCallChain(const AsyncCallChain& t) : m_callStacks(t.m_callStacks) { } |
| AsyncCallStackVector callStacks() const { return m_callStacks; } |
| private: |
| friend class AsyncCallStackTracker; |
| AsyncCallStackVector m_callStacks; |
| }; |
| |
| AsyncCallStackTracker(); |
| |
| bool isEnabled() const { return m_maxAsyncCallStackDepth; } |
| void setAsyncCallStackDepth(int); |
| const AsyncCallChain* currentAsyncCallChain() const; |
| |
| void didInstallTimer(ExecutionContext*, int timerId, bool singleShot, const ScriptValue& callFrames); |
| void didRemoveTimer(ExecutionContext*, int timerId); |
| void willFireTimer(ExecutionContext*, int timerId); |
| |
| void didRequestAnimationFrame(ExecutionContext*, int callbackId, const ScriptValue& callFrames); |
| void didCancelAnimationFrame(ExecutionContext*, int callbackId); |
| void willFireAnimationFrame(ExecutionContext*, int callbackId); |
| |
| void didFireAsyncCall(); |
| void clear(); |
| |
| private: |
| PassRefPtr<AsyncCallChain> createAsyncCallChain(const String& description, const ScriptValue& callFrames); |
| static void ensureMaxAsyncCallChainDepth(AsyncCallChain*, unsigned); |
| static bool validateCallFrames(const ScriptValue& callFrames); |
| |
| class ExecutionContextData; |
| void contextDestroyed(ExecutionContext*); |
| ExecutionContextData* createContextDataIfNeeded(ExecutionContext*); |
| |
| unsigned m_maxAsyncCallStackDepth; |
| RefPtr<AsyncCallChain> m_currentAsyncCallChain; |
| HashMap<ExecutionContext*, ExecutionContextData*> m_executionContextDataMap; |
| }; |
| |
| } // namespace WebCore |
| |
| #endif // !defined(AsyncCallStackTracker_h) |