/* * Copyright (C) 2006, 2010, 2011, 2013 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. */ #import "config.h" #import "SharedTimer.h" #import "WebCoreThread.h" #import "WebCoreThreadRun.h" #import <wtf/Assertions.h> using namespace WebCore; namespace WebCore { static CFRunLoopTimerRef sharedTimer; static void timerFired(CFRunLoopTimerRef, void*); static void applicationDidBecomeActive(CFNotificationCenterRef, void*, CFStringRef, const void*, CFDictionaryRef) { WebThreadRun(^{ if (!sharedTimer) return; stopSharedTimer(); timerFired(0, 0); }); } typedef void (*SharedTimerFiredFunction)(); static SharedTimerFiredFunction sharedTimerFiredFunction; void setSharedTimerFiredFunction(SharedTimerFiredFunction function) { ASSERT(!sharedTimerFiredFunction || sharedTimerFiredFunction == function); sharedTimerFiredFunction = function; } static void timerFired(CFRunLoopTimerRef, void*) { @autoreleasepool { sharedTimerFiredFunction(); } } void setSharedTimerFireInterval(double interval) { ASSERT(sharedTimerFiredFunction); if (sharedTimer) { CFRunLoopTimerInvalidate(sharedTimer); CFRelease(sharedTimer); } CFAbsoluteTime fireDate = CFAbsoluteTimeGetCurrent() + interval; sharedTimer = CFRunLoopTimerCreate(0, fireDate, 0, 0, 0, timerFired, 0); CFRunLoopAddTimer(WebThreadRunLoop(), sharedTimer, kCFRunLoopCommonModes); static bool registeredForApplicationNotification = false; if (!registeredForApplicationNotification) { registeredForApplicationNotification = true; CFNotificationCenterRef notificationCenter = CFNotificationCenterGetLocalCenter(); CFNotificationCenterAddObserver(notificationCenter, 0, applicationDidBecomeActive, CFSTR("UIApplicationDidBecomeActiveNotification"), NULL, CFNotificationSuspensionBehaviorCoalesce); } } void stopSharedTimer() { if (!sharedTimer) return; CFRunLoopTimerInvalidate(sharedTimer); CFRelease(sharedTimer); sharedTimer = 0; } } // namespace WebCore