mirror of
https://github.com/darlinghq/darling-JavaScriptCore.git
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83 lines
2.5 KiB
C++
83 lines
2.5 KiB
C++
/*
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* Copyright (C) 2013-2017 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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#include <wtf/Lock.h>
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#include <wtf/MonotonicTime.h>
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#include <wtf/Ref.h>
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#include <wtf/ThreadSafeRefCounted.h>
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#include <wtf/WorkQueue.h>
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namespace JSC {
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class CallFrame;
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class JSGlobalObject;
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class VM;
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class Watchdog : public WTF::ThreadSafeRefCounted<Watchdog> {
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WTF_MAKE_FAST_ALLOCATED;
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public:
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class Scope;
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Watchdog(VM*);
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void willDestroyVM(VM*);
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typedef bool (*ShouldTerminateCallback)(JSGlobalObject*, void* data1, void* data2);
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void setTimeLimit(Seconds limit, ShouldTerminateCallback = nullptr, void* data1 = nullptr, void* data2 = nullptr);
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bool shouldTerminate(JSGlobalObject*);
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bool hasTimeLimit();
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void enteredVM();
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void exitedVM();
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static constexpr Seconds noTimeLimit = Seconds::infinity();
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private:
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void startTimer(Seconds timeLimit);
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void stopTimer();
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bool m_hasEnteredVM { false };
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Lock m_lock; // Guards access to m_vm.
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VM* m_vm;
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Seconds m_timeLimit;
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Seconds m_cpuDeadline;
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MonotonicTime m_deadline;
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ShouldTerminateCallback m_callback;
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void* m_callbackData1;
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void* m_callbackData2;
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Ref<WorkQueue> m_timerQueue;
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friend class LLIntOffsetsExtractor;
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};
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} // namespace JSC
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