147 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			C
		
	
	
	
			
		
		
	
	
			147 lines
		
	
	
		
			4.4 KiB
		
	
	
	
		
			C
		
	
	
	
/*
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Copyright 1991, 1993, 1994, 1998  The Open Group
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Permission to use, copy, modify, distribute, and sell this software and its
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documentation for any purpose is hereby granted without fee, provided that
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the above copyright notice appear in all copies and that both that
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copyright notice and this permission notice appear in supporting
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documentation.
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
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OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
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AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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Except as contained in this notice, the name of The Open Group shall not be
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used in advertising or otherwise to promote the sale, use or other dealings
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in this Software without prior written authorization from The Open Group.
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*/
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/***********************************************************
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Copyright 1991,1993 by Digital Equipment Corporation, Maynard, Massachusetts,
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and Olivetti Research Limited, Cambridge, England.
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                        All Rights Reserved
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Permission to use, copy, modify, and distribute this software and its 
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documentation for any purpose and without fee is hereby granted, 
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provided that the above copyright notice appear in all copies and that
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both that copyright notice and this permission notice appear in 
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supporting documentation, and that the names of Digital or Olivetti
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not be used in advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.  
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DIGITAL AND OLIVETTI DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
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SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
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FITNESS, IN NO EVENT SHALL THEY BE LIABLE FOR ANY SPECIAL, INDIRECT OR
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CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
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USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
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OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
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PERFORMANCE OF THIS SOFTWARE.
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******************************************************************/
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#ifndef _SYNCSRV_H_
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#define _SYNCSRV_H_
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#include "misync.h"
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#include "misyncstr.h"
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/*
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 * The System Counter interface
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 */
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typedef enum {
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    XSyncCounterNeverChanges,
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    XSyncCounterNeverIncreases,
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    XSyncCounterNeverDecreases,
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    XSyncCounterUnrestricted
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} SyncCounterType;
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typedef struct _SysCounterInfo {
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    char	*name;
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    CARD64	resolution;
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    CARD64	bracket_greater;
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    CARD64	bracket_less;
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    SyncCounterType counterType;  /* how can this counter change */
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    void        (*QueryValue)(
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			      pointer /*pCounter*/,
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			      CARD64 * /*freshvalue*/
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);
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    void	(*BracketValues)(
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				 pointer /*pCounter*/,
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				 CARD64 * /*lessthan*/,
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				 CARD64 * /*greaterthan*/
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);
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} SysCounterInfo;
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typedef struct _SyncAlarmClientList {
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    ClientPtr	client;
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    XID		delete_id;
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    struct _SyncAlarmClientList *next;
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} SyncAlarmClientList;
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typedef struct _SyncAlarm {
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    SyncTrigger trigger;
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    ClientPtr	client;
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    XSyncAlarm 	alarm_id;
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    CARD64	delta;
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    int		events;
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    int		state;
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    SyncAlarmClientList *pEventClients;
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} SyncAlarm;
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typedef struct {
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    ClientPtr	client;
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    CARD32 	delete_id;
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    int		num_waitconditions;
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} SyncAwaitHeader;
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typedef struct {
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    SyncTrigger trigger;
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    CARD64	event_threshold;
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    SyncAwaitHeader *pHeader;
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} SyncAwait;
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typedef union {
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    SyncAwaitHeader header;
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    SyncAwait	    await;
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} SyncAwaitUnion;
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extern pointer SyncCreateSystemCounter(
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    char *	/* name */,
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    CARD64  	/* inital_value */,
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    CARD64  	/* resolution */,
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    SyncCounterType /* change characterization */,
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    void        (* /*QueryValue*/ ) (
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        pointer /* pCounter */,
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        CARD64 * /* pValue_return */), /* XXX prototype */
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    void        (* /*BracketValues*/) (
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        pointer /* pCounter */, 
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        CARD64 * /* pbracket_less */,
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        CARD64 * /* pbracket_greater */)
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);
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extern void SyncChangeCounter(
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    SyncCounter *	/* pCounter*/,
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    CARD64  		/* new_value */
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);
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extern void SyncDestroySystemCounter(
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    pointer pCounter
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);
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extern void InitServertime(void);
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extern void SyncExtensionInit(void);
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#endif /* _SYNCSRV_H_ */
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