syncsrv.h revision 1b5d61b8 
1/*
2
3Copyright 1991, 1993, 1994, 1998  The Open Group
4
5Permission to use, copy, modify, distribute, and sell this software and its
6documentation for any purpose is hereby granted without fee, provided that
7the above copyright notice appear in all copies and that both that
8copyright notice and this permission notice appear in supporting
9documentation.
10
11The above copyright notice and this permission notice shall be included in
12all copies or substantial portions of the Software.
13
14THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20
21Except as contained in this notice, the name of The Open Group shall not be
22used in advertising or otherwise to promote the sale, use or other dealings
23in this Software without prior written authorization from The Open Group.
24
25*/
26
27/***********************************************************
28Copyright 1991,1993 by Digital Equipment Corporation, Maynard, Massachusetts,
29and Olivetti Research Limited, Cambridge, England.
30
31                        All Rights Reserved
32
33Permission to use, copy, modify, and distribute this software and its
34documentation for any purpose and without fee is hereby granted,
35provided that the above copyright notice appear in all copies and that
36both that copyright notice and this permission notice appear in
37supporting documentation, and that the names of Digital or Olivetti
38not be used in advertising or publicity pertaining to distribution of the
39software without specific, written prior permission.
40
41DIGITAL AND OLIVETTI DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
42SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
43FITNESS, IN NO EVENT SHALL THEY BE LIABLE FOR ANY SPECIAL, INDIRECT OR
44CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
45USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
46OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
47PERFORMANCE OF THIS SOFTWARE.
48
49******************************************************************/
50
51#ifndef _SYNCSRV_H_
52#define _SYNCSRV_H_
53
54#include "list.h"
55#include "misync.h"
56#include "misyncstr.h"
57
58/*
59 * The System Counter interface
60 */
61
62typedef enum {
63    XSyncCounterNeverChanges,
64    XSyncCounterNeverIncreases,
65    XSyncCounterNeverDecreases,
66    XSyncCounterUnrestricted
67} SyncCounterType;
68
69typedef void (*SyncSystemCounterQueryValue)(void *counter,
70                                            int64_t *value_return
71    );
72typedef void (*SyncSystemCounterBracketValues)(void *counter,
73                                               int64_t *pbracket_less,
74                                               int64_t *pbracket_greater
75    );
76
77typedef struct _SysCounterInfo {
78    SyncCounter *pCounter;
79    char *name;
80    int64_t resolution;
81    int64_t bracket_greater;
82    int64_t bracket_less;
83    SyncCounterType counterType;        /* how can this counter change */
84    SyncSystemCounterQueryValue QueryValue;
85    SyncSystemCounterBracketValues BracketValues;
86    void *private;
87    struct xorg_list entry;
88} SysCounterInfo;
89
90typedef struct _SyncAlarmClientList {
91    ClientPtr client;
92    XID delete_id;
93    struct _SyncAlarmClientList *next;
94} SyncAlarmClientList;
95
96typedef struct _SyncAlarm {
97    SyncTrigger trigger;
98    ClientPtr client;
99    XSyncAlarm alarm_id;
100    int64_t delta;
101    int events;
102    int state;
103    SyncAlarmClientList *pEventClients;
104} SyncAlarm;
105
106typedef struct {
107    ClientPtr client;
108    CARD32 delete_id;
109    int num_waitconditions;
110} SyncAwaitHeader;
111
112typedef struct {
113    SyncTrigger trigger;
114    int64_t event_threshold;
115    SyncAwaitHeader *pHeader;
116} SyncAwait;
117
118typedef union {
119    SyncAwaitHeader header;
120    SyncAwait await;
121} SyncAwaitUnion;
122
123extern SyncCounter* SyncCreateSystemCounter(const char *name,
124                                            int64_t initial_value,
125                                            int64_t resolution,
126                                            SyncCounterType counterType,
127                                            SyncSystemCounterQueryValue QueryValue,
128                                            SyncSystemCounterBracketValues BracketValues
129    );
130
131extern void SyncChangeCounter(SyncCounter *pCounter,
132                              int64_t new_value);
133
134extern void SyncDestroySystemCounter(void *pCounter);
135
136extern SyncCounter *SyncInitDeviceIdleTime(DeviceIntPtr dev);
137extern void SyncRemoveDeviceIdleTime(SyncCounter *counter);
138
139int
140SyncCreateFenceFromFD(ClientPtr client, DrawablePtr pDraw, XID id, int fd, BOOL initially_triggered);
141
142int
143SyncFDFromFence(ClientPtr client, DrawablePtr pDraw, SyncFence *fence);
144
145void
146SyncDeleteTriggerFromSyncObject(SyncTrigger * pTrigger);
147
148int
149SyncAddTriggerToSyncObject(SyncTrigger * pTrigger);
150
151#endif                          /* _SYNCSRV_H_ */
152