blob: b68922805e5d373de7f0aed7890825acccc12039 [file] [log] [blame]
/*
* Copyright (C) 2006-2016 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. ``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
* 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.
*/
#import "config.h"
#import "MainThreadSharedTimer.h"
#include <wtf/AutodrainedPool.h>
#if PLATFORM(MAC)
#import "PowerObserverMac.h"
#elif PLATFORM(IOS_FAMILY)
#import "WebCoreThreadInternal.h"
#import "WebCoreThreadRun.h"
#endif
namespace WebCore {
static CFRunLoopTimerRef sharedTimer;
static void timerFired(CFRunLoopTimerRef, void*);
static void restartSharedTimer();
static const CFTimeInterval kCFTimeIntervalDistantFuture = std::numeric_limits<CFTimeInterval>::max();
#if PLATFORM(IOS_FAMILY)
static void applicationDidBecomeActive(CFNotificationCenterRef, void*, CFStringRef, const void*, CFDictionaryRef)
{
WebThreadRun(^{
restartSharedTimer();
});
}
#endif
static void setupPowerObserver()
{
#if PLATFORM(MAC)
static PowerObserver* powerObserver;
if (!powerObserver)
powerObserver = std::make_unique<PowerObserver>(restartSharedTimer).release();
#elif PLATFORM(IOS_FAMILY)
static bool registeredForApplicationNotification = false;
if (!registeredForApplicationNotification) {
registeredForApplicationNotification = true;
CFNotificationCenterRef notificationCenter = CFNotificationCenterGetLocalCenter();
CFNotificationCenterAddObserver(notificationCenter, nullptr, applicationDidBecomeActive, CFSTR("UIApplicationDidBecomeActiveNotification"), nullptr, CFNotificationSuspensionBehaviorCoalesce);
}
#endif
}
static void timerFired(CFRunLoopTimerRef, void*)
{
AutodrainedPool pool;
MainThreadSharedTimer::singleton().fired();
}
static void restartSharedTimer()
{
if (!sharedTimer)
return;
MainThreadSharedTimer::singleton().stop();
timerFired(0, 0);
}
void MainThreadSharedTimer::invalidate()
{
if (!sharedTimer)
return;
CFRunLoopTimerInvalidate(sharedTimer);
CFRelease(sharedTimer);
sharedTimer = nullptr;
}
void MainThreadSharedTimer::setFireInterval(Seconds interval)
{
ASSERT(m_firedFunction);
CFAbsoluteTime fireDate = CFAbsoluteTimeGetCurrent() + interval.value();
if (!sharedTimer) {
sharedTimer = CFRunLoopTimerCreate(nullptr, fireDate, kCFTimeIntervalDistantFuture, 0, 0, timerFired, nullptr);
#if PLATFORM(IOS_FAMILY)
CFRunLoopAddTimer(WebThreadRunLoop(), sharedTimer, kCFRunLoopCommonModes);
#else
CFRunLoopAddTimer(CFRunLoopGetCurrent(), sharedTimer, kCFRunLoopCommonModes);
#endif
setupPowerObserver();
return;
}
CFRunLoopTimerSetNextFireDate(sharedTimer, fireDate);
}
void MainThreadSharedTimer::stop()
{
if (!sharedTimer)
return;
CFRunLoopTimerSetNextFireDate(sharedTimer, kCFTimeIntervalDistantFuture);
}
} // namespace WebCore