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ProcessStateMonitor.h
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59 lines (49 loc) · 2.18 KB
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/*
* Copyright (C) 2022 Apple 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:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS 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 APPLE INC. OR ITS 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.
*/
#pragma once
#if PLATFORM(IOS_FAMILY)
#import <wtf/RetainPtr.h>
#import <wtf/RunLoop.h>
OBJC_CLASS RBSProcessMonitor;
namespace WebKit {
class ProcessStateMonitor : public CanMakeWeakPtr<ProcessStateMonitor> {
WTF_MAKE_FAST_ALLOCATED;
public:
ProcessStateMonitor(Function<void(bool)>&& becomeSuspendedHandler);
~ProcessStateMonitor();
void processWillBeSuspendedImmediately();
private:
void processDidBecomeRunning();
void processWillBeSuspended(Seconds timeout);
void suspendTimerFired();
void checkRemainingRunTime();
enum class State : uint8_t { Running, WillSuspend, Suspended };
State m_state { State::Running };
Function<void(bool)> m_becomeSuspendedHandler;
RunLoop::Timer<ProcessStateMonitor> m_suspendTimer;
RetainPtr<RBSProcessMonitor> m_rbsMonitor;
};
} // namespace WebKit
#endif // PLATFORM(IOS_FAMILY)