CFRunLoop.h

/*
 * Copyright (c) 2008-2009 Brent Fulgham <bfulgham@gmail.org>.  All rights reserved.
 *
 * This source code is a modified version of the CoreFoundation sources released by Apple Inc. under
 * the terms of the APSL version 2.0 (see below).
 *
 * For information about changes from the original Apple source release can be found by reviewing the
 * source control system for the project at https://sourceforge.net/svn/?group_id=246198.
 *
 * The original license information is as follows:
 * 
 * Copyright (c) 2008 Apple Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 * 
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. Please obtain a copy of the License at
 * http://www.opensource.apple.com/apsl/ and read it before using this
 * file.
 * 
 * The Original Code and all software distributed under the License are
 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
 * Please see the License for the specific language governing rights and
 * limitations under the License.
 * 
 * @APPLE_LICENSE_HEADER_END@
 */
/*	CFRunLoop.h
	Copyright (c) 1998-2007, Apple Inc. All rights reserved.
*/

#if !defined(__COREFOUNDATION_CFRUNLOOP__)
#define __COREFOUNDATION_CFRUNLOOP__ 1

#include <CoreFoundation/CFBase.h>
#include <CoreFoundation/CFArray.h>
#include <CoreFoundation/CFDate.h>
#include <CoreFoundation/CFString.h>
#if defined(__MACH__)
    #include <mach/port.h>
#elif DEPLOYMENT_TARGET_LINUX
	#include <semaphore.h>
#endif

CF_EXTERN_C_BEGIN

typedef struct __CFRunLoop * CFRunLoopRef;

typedef struct __CFRunLoopSource * CFRunLoopSourceRef;

typedef struct __CFRunLoopObserver * CFRunLoopObserverRef;

typedef struct __CFRunLoopTimer * CFRunLoopTimerRef;

/* Reasons for CFRunLoopRunInMode() to Return */
enum {
    kCFRunLoopRunFinished = 1,
    kCFRunLoopRunStopped = 2,
    kCFRunLoopRunTimedOut = 3,
    kCFRunLoopRunHandledSource = 4
};

/* Run Loop Observer Activities */
enum {
    kCFRunLoopEntry = (1 << 0),
    kCFRunLoopBeforeTimers = (1 << 1),
    kCFRunLoopBeforeSources = (1 << 2),
    kCFRunLoopBeforeWaiting = (1 << 5),
    kCFRunLoopAfterWaiting = (1 << 6),
    kCFRunLoopExit = (1 << 7),
    kCFRunLoopAllActivities = 0x0FFFFFFFU
};
typedef CFOptionFlags CFRunLoopActivity;

CF_EXPORT const CFStringRef kCFRunLoopDefaultMode;
CF_EXPORT const CFStringRef kCFRunLoopCommonModes;

CF_EXPORT CFTypeID CFRunLoopGetTypeID(void);

CF_EXPORT CFRunLoopRef CFRunLoopGetCurrent(void);
CF_EXPORT CFRunLoopRef CFRunLoopGetMain(void) AVAILABLE_MAC_OS_X_VERSION_10_1_AND_LATER;

CF_EXPORT CFStringRef CFRunLoopCopyCurrentMode(CFRunLoopRef rl);

CF_EXPORT CFArrayRef CFRunLoopCopyAllModes(CFRunLoopRef rl);

CF_EXPORT void CFRunLoopAddCommonMode(CFRunLoopRef rl, CFStringRef mode);

CF_EXPORT CFAbsoluteTime CFRunLoopGetNextTimerFireDate(CFRunLoopRef rl, CFStringRef mode);

CF_EXPORT void CFRunLoopRun(void);
CF_EXPORT SInt32 CFRunLoopRunInMode(CFStringRef mode, CFTimeInterval seconds, Boolean returnAfterSourceHandled);
CF_EXPORT Boolean CFRunLoopIsWaiting(CFRunLoopRef rl);
CF_EXPORT void CFRunLoopWakeUp(CFRunLoopRef rl);
CF_EXPORT void CFRunLoopStop(CFRunLoopRef rl);

CF_EXPORT Boolean CFRunLoopContainsSource(CFRunLoopRef rl, CFRunLoopSourceRef source, CFStringRef mode);
CF_EXPORT void CFRunLoopAddSource(CFRunLoopRef rl, CFRunLoopSourceRef source, CFStringRef mode);
CF_EXPORT void CFRunLoopRemoveSource(CFRunLoopRef rl, CFRunLoopSourceRef source, CFStringRef mode);

CF_EXPORT Boolean CFRunLoopContainsObserver(CFRunLoopRef rl, CFRunLoopObserverRef observer, CFStringRef mode);
CF_EXPORT void CFRunLoopAddObserver(CFRunLoopRef rl, CFRunLoopObserverRef observer, CFStringRef mode);
CF_EXPORT void CFRunLoopRemoveObserver(CFRunLoopRef rl, CFRunLoopObserverRef observer, CFStringRef mode);

CF_EXPORT Boolean CFRunLoopContainsTimer(CFRunLoopRef rl, CFRunLoopTimerRef timer, CFStringRef mode);
CF_EXPORT void CFRunLoopAddTimer(CFRunLoopRef rl, CFRunLoopTimerRef timer, CFStringRef mode);
CF_EXPORT void CFRunLoopRemoveTimer(CFRunLoopRef rl, CFRunLoopTimerRef timer, CFStringRef mode);

typedef struct {
    CFIndex	version;
    void *	info;
    const void *(*retain)(const void *info);
    void	(*release)(const void *info);
    CFStringRef	(*copyDescription)(const void *info);
    Boolean	(*equal)(const void *info1, const void *info2);
    CFHashCode	(*hash)(const void *info);
    void	(*schedule)(void *info, CFRunLoopRef rl, CFStringRef mode);
    void	(*cancel)(void *info, CFRunLoopRef rl, CFStringRef mode);
    void	(*perform)(void *info);
} CFRunLoopSourceContext;

typedef struct {
    CFIndex	version;
    void *	info;
    const void *(*retain)(const void *info);
    void	(*release)(const void *info);
    CFStringRef	(*copyDescription)(const void *info);
    Boolean	(*equal)(const void *info1, const void *info2);
    CFHashCode	(*hash)(const void *info);
#if defined(__MACH__)
    mach_port_t	(*getPort)(void *info);
    void *	(*perform)(void *msg, CFIndex size, CFAllocatorRef allocator, void *info);
#elif DEPLOYMENT_TARGET_LINUX
    sem_t *	(*getPort)(void *info);
    void	(*perform)(void *info);
#else
    HANDLE	(*getPort)(void *info);
    void	(*perform)(void *info);
#endif
} CFRunLoopSourceContext1;

CF_EXPORT CFTypeID CFRunLoopSourceGetTypeID(void);

CF_EXPORT CFRunLoopSourceRef CFRunLoopSourceCreate(CFAllocatorRef allocator, CFIndex order, CFRunLoopSourceContext *context);

CF_EXPORT CFIndex CFRunLoopSourceGetOrder(CFRunLoopSourceRef source);
CF_EXPORT void CFRunLoopSourceInvalidate(CFRunLoopSourceRef source);
CF_EXPORT Boolean CFRunLoopSourceIsValid(CFRunLoopSourceRef source);
CF_EXPORT void CFRunLoopSourceGetContext(CFRunLoopSourceRef source, CFRunLoopSourceContext *context);
CF_EXPORT void CFRunLoopSourceSignal(CFRunLoopSourceRef source);

typedef struct {
    CFIndex	version;
    void *	info;
    const void *(*retain)(const void *info);
    void	(*release)(const void *info);
    CFStringRef	(*copyDescription)(const void *info);
} CFRunLoopObserverContext;

typedef void (*CFRunLoopObserverCallBack)(CFRunLoopObserverRef observer, CFRunLoopActivity activity, void *info);

CF_EXPORT CFTypeID CFRunLoopObserverGetTypeID(void);

CF_EXPORT CFRunLoopObserverRef CFRunLoopObserverCreate(CFAllocatorRef allocator, CFOptionFlags activities, Boolean repeats, CFIndex order, CFRunLoopObserverCallBack callout, CFRunLoopObserverContext *context);

CF_EXPORT CFOptionFlags CFRunLoopObserverGetActivities(CFRunLoopObserverRef observer);
CF_EXPORT Boolean CFRunLoopObserverDoesRepeat(CFRunLoopObserverRef observer);
CF_EXPORT CFIndex CFRunLoopObserverGetOrder(CFRunLoopObserverRef observer);
CF_EXPORT void CFRunLoopObserverInvalidate(CFRunLoopObserverRef observer);
CF_EXPORT Boolean CFRunLoopObserverIsValid(CFRunLoopObserverRef observer);
CF_EXPORT void CFRunLoopObserverGetContext(CFRunLoopObserverRef observer, CFRunLoopObserverContext *context);

typedef struct {
    CFIndex	version;
    void *	info;
    const void *(*retain)(const void *info);
    void	(*release)(const void *info);
    CFStringRef	(*copyDescription)(const void *info);
} CFRunLoopTimerContext;

typedef void (*CFRunLoopTimerCallBack)(CFRunLoopTimerRef timer, void *info);

CF_EXPORT CFTypeID CFRunLoopTimerGetTypeID(void);

CF_EXPORT CFRunLoopTimerRef CFRunLoopTimerCreate(CFAllocatorRef allocator, CFAbsoluteTime fireDate, CFTimeInterval interval, CFOptionFlags flags, CFIndex order, CFRunLoopTimerCallBack callout, CFRunLoopTimerContext *context);
CF_EXPORT CFAbsoluteTime CFRunLoopTimerGetNextFireDate(CFRunLoopTimerRef timer);
CF_EXPORT void CFRunLoopTimerSetNextFireDate(CFRunLoopTimerRef timer, CFAbsoluteTime fireDate);
CF_EXPORT CFTimeInterval CFRunLoopTimerGetInterval(CFRunLoopTimerRef timer);
CF_EXPORT Boolean CFRunLoopTimerDoesRepeat(CFRunLoopTimerRef timer);
CF_EXPORT CFIndex CFRunLoopTimerGetOrder(CFRunLoopTimerRef timer);
CF_EXPORT void CFRunLoopTimerInvalidate(CFRunLoopTimerRef timer);
CF_EXPORT Boolean CFRunLoopTimerIsValid(CFRunLoopTimerRef timer);
CF_EXPORT void CFRunLoopTimerGetContext(CFRunLoopTimerRef timer, CFRunLoopTimerContext *context);

CF_EXTERN_C_END

#endif /* ! __COREFOUNDATION_CFRUNLOOP__ */