xref: /OK3568_Linux_fs/external/xserver/Xext/syncsrv.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1 /*
2 
3 Copyright 1991, 1993, 1994, 1998  The Open Group
4 
5 Permission to use, copy, modify, distribute, and sell this software and its
6 documentation for any purpose is hereby granted without fee, provided that
7 the above copyright notice appear in all copies and that both that
8 copyright notice and this permission notice appear in supporting
9 documentation.
10 
11 The above copyright notice and this permission notice shall be included in
12 all copies or substantial portions of the Software.
13 
14 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL THE
17 OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
18 AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
19 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
20 
21 Except as contained in this notice, the name of The Open Group shall not be
22 used in advertising or otherwise to promote the sale, use or other dealings
23 in this Software without prior written authorization from The Open Group.
24 
25 */
26 
27 /***********************************************************
28 Copyright 1991,1993 by Digital Equipment Corporation, Maynard, Massachusetts,
29 and Olivetti Research Limited, Cambridge, England.
30 
31                         All Rights Reserved
32 
33 Permission to use, copy, modify, and distribute this software and its
34 documentation for any purpose and without fee is hereby granted,
35 provided that the above copyright notice appear in all copies and that
36 both that copyright notice and this permission notice appear in
37 supporting documentation, and that the names of Digital or Olivetti
38 not be used in advertising or publicity pertaining to distribution of the
39 software without specific, written prior permission.
40 
41 DIGITAL AND OLIVETTI DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
42 SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
43 FITNESS, IN NO EVENT SHALL THEY BE LIABLE FOR ANY SPECIAL, INDIRECT OR
44 CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
45 USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
46 OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
47 PERFORMANCE 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 
62 typedef enum {
63     XSyncCounterNeverChanges,
64     XSyncCounterNeverIncreases,
65     XSyncCounterNeverDecreases,
66     XSyncCounterUnrestricted
67 } SyncCounterType;
68 
69 typedef void (*SyncSystemCounterQueryValue)(void *counter,
70                                             int64_t *value_return
71     );
72 typedef void (*SyncSystemCounterBracketValues)(void *counter,
73                                                int64_t *pbracket_less,
74                                                int64_t *pbracket_greater
75     );
76 
77 typedef 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 
90 typedef struct _SyncAlarmClientList {
91     ClientPtr client;
92     XID delete_id;
93     struct _SyncAlarmClientList *next;
94 } SyncAlarmClientList;
95 
96 typedef 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 
106 typedef struct {
107     ClientPtr client;
108     CARD32 delete_id;
109     int num_waitconditions;
110 } SyncAwaitHeader;
111 
112 typedef struct {
113     SyncTrigger trigger;
114     int64_t event_threshold;
115     SyncAwaitHeader *pHeader;
116 } SyncAwait;
117 
118 typedef union {
119     SyncAwaitHeader header;
120     SyncAwait await;
121 } SyncAwaitUnion;
122 
123 extern 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 
131 extern void SyncChangeCounter(SyncCounter *pCounter,
132                               int64_t new_value);
133 
134 extern void SyncDestroySystemCounter(void *pCounter);
135 
136 extern SyncCounter *SyncInitDeviceIdleTime(DeviceIntPtr dev);
137 extern void SyncRemoveDeviceIdleTime(SyncCounter *counter);
138 
139 int
140 SyncCreateFenceFromFD(ClientPtr client, DrawablePtr pDraw, XID id, int fd, BOOL initially_triggered);
141 
142 int
143 SyncFDFromFence(ClientPtr client, DrawablePtr pDraw, SyncFence *fence);
144 
145 void
146 SyncDeleteTriggerFromSyncObject(SyncTrigger * pTrigger);
147 
148 int
149 SyncAddTriggerToSyncObject(SyncTrigger * pTrigger);
150 
151 #endif                          /* _SYNCSRV_H_ */
152