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/*
* 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
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