mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
synced 2025-04-08 01:41:53 +00:00
91 lines
2.8 KiB
C++
91 lines
2.8 KiB
C++
/*
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* Copyright (C) 2015 Apple Inc. All rights reserved.
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*
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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
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* are met:
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* 1. 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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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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#include "Debugger.h"
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#include "JSGlobalObject.h"
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#include <wtf/Optional.h>
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namespace JSC {
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class ScriptProfilingScope {
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public:
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ScriptProfilingScope(JSGlobalObject* globalObject, ProfilingReason reason)
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: m_globalObject(globalObject)
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, m_reason(reason)
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{
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if (shouldStartProfile())
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m_startTime = m_globalObject->debugger()->willEvaluateScript();
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}
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~ScriptProfilingScope()
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{
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if (shouldEndProfile())
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m_globalObject->debugger()->didEvaluateScript(m_startTime.value(), m_reason);
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}
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private:
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bool shouldStartProfile() const
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{
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if (!m_globalObject)
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return false;
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if (!m_globalObject->hasDebugger())
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return false;
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if (!m_globalObject->debugger()->hasProfilingClient())
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return false;
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if (m_globalObject->debugger()->isAlreadyProfiling())
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return false;
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return true;
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}
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bool shouldEndProfile() const
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{
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// Did not start a profile.
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if (!m_startTime)
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return false;
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// Debugger may have been removed.
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if (!m_globalObject->hasDebugger())
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return false;
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// Profiling Client may have been removed.
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if (!m_globalObject->debugger()->hasProfilingClient())
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return false;
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return true;
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}
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JSGlobalObject* m_globalObject { nullptr };
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Optional<Seconds> m_startTime;
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ProfilingReason m_reason;
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};
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} // namespace JSC
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