/*
 * Copyright (c) 2000 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_LICENSE_HEADER_START@
 *
 * The contents of this file constitute Original Code as defined in and
 * are subject to the Apple Public Source License Version 1.1 (the
 * "License").  You may not use this file except in compliance with the
 * License.  Please obtain a copy of the License at
 * http://www.apple.com/publicsource and read it before using this file.
 *
 * This 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 OR NON-INFRINGEMENT.  Please see the
 * License for the specific language governing rights and limitations
 * under the License.
 *
 * @APPLE_LICENSE_HEADER_END@
 */

#ifndef _SCDYNAMICSTOREINTERNAL_H
#define _SCDYNAMICSTOREINTERNAL_H

#include <sys/cdefs.h>
#include <sys/types.h>
#include <mach/mach.h>
#include <pthread.h>
#include <regex.h>
#include <CoreFoundation/CoreFoundation.h>
#include <CoreFoundation/CFRuntime.h>
#include <SystemConfiguration/SCDynamicStore.h>


/* Define the status of any registered notification. */
typedef enum {
	NotifierNotRegistered = 0,
	Using_NotifierWait,
	Using_NotifierInformViaCallback,
	Using_NotifierInformViaMachPort,
	Using_NotifierInformViaFD,
	Using_NotifierInformViaSignal,
	Using_NotifierInformViaRunLoop,
} __SCDynamicStoreNotificationStatus;


typedef struct {

	/* base CFType information */
	CFRuntimeBase			cfBase;

	/* server side of the "configd" session */
	mach_port_t			server;

	/* per-session flags */
	Boolean				locked;

	/* SCDynamicStoreKeys being watched */
	CFMutableSetRef			keys;
	CFMutableSetRef			reKeys;

	/* current status of notification requests */
	__SCDynamicStoreNotificationStatus	notifyStatus;

	/* "client" information associated with SCDynamicStoreCreateRunLoopSource() */
	CFIndex				rlsRefs;
	CFRunLoopSourceRef		rls;
	SCDynamicStoreCallBack		rlsFunction;
	SCDynamicStoreContext		rlsContext;

	/* "client" information associated with SCDynamicStoreNotifyCallback() */
	SCDynamicStoreCallBack_v1	callbackFunction;
	void				*callbackArgument;
	CFMachPortRef			callbackPort;
	CFRunLoopRef			callbackRunLoop;
	CFRunLoopSourceRef		callbackRunLoopSource;

	/* "server" information associated with SCDynamicStoreNotifyMachPort() */
	mach_port_t			notifyPort;
	mach_msg_id_t			notifyPortIdentifier;

	/* "server" information associated with SCDynamicStoreNotifyFileDescriptor() */
	int				notifyFile;
	int				notifyFileIdentifier;

	/* "server" information associated with SCDynamicStoreNotifySignal() */
	int				notifySignal;
	task_t				notifySignalTask;

} SCDynamicStorePrivate, *SCDynamicStorePrivateRef;


__BEGIN_DECLS

SCDynamicStoreRef
__SCDynamicStoreCreatePrivate		(CFAllocatorRef			allocator,
					 const CFStringRef		name,
					 SCDynamicStoreCallBack		callout,
					 SCDynamicStoreContext		*context);

void
__SCLog					(int				level,
					 CFStringRef			str);

void
__SCPrint				(FILE				*stream,
					 CFStringRef			str);

void
__showMachPortStatus			();

void
__showMachPortReferences		(mach_port_t			port);

__END_DECLS

#endif /* _SCDYNAMICSTOREINTERNAL_H */