mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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82 lines
2.3 KiB
C++
82 lines
2.3 KiB
C++
/*
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* Copyright (C) 2012 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. ``AS IS'' AND ANY
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* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR
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* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
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* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#pragma once
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namespace WTF {
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class MetaAllocator;
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class MetaAllocatorTracker;
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}
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namespace JSC {
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class CodeProfile;
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class SourceCode;
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class CodeProfiling {
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enum Mode {
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Disabled,
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Enabled,
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Verbose,
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VeryVerbose
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};
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public:
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CodeProfiling(const SourceCode& source)
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: m_active(enabled())
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{
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if (m_active)
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begin(source);
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}
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~CodeProfiling()
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{
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if (m_active)
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end();
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}
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static bool enabled() { return s_mode != Disabled; }
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static bool beVerbose() { return s_mode >= Verbose; }
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static bool beVeryVerbose() { return s_mode >= VeryVerbose; }
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static void notifyAllocator(WTF::MetaAllocator*);
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static void* getOwnerUIDForPC(void*);
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static void sample(void* pc, void** framePointer);
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private:
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void begin(const SourceCode&);
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void end();
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bool m_active;
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static Mode s_mode;
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static WTF::MetaAllocatorTracker* s_tracker;
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static volatile CodeProfile* s_profileStack;
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};
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} // namespace JSC
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