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 _SYNCSTR_H_ 52 #define _SYNCSTR_H_ 53 54 #include <X11/extensions/syncproto.h> 55 56 #ifdef _SYNC_SERVER 57 58 #define CARD64 XSyncValue /* XXX temporary! need real 64 bit values for Alpha */ 59 60 typedef struct _SyncCounter { 61 ClientPtr client; /* Owning client. 0 for system counters */ 62 XSyncCounter id; /* resource ID */ 63 CARD64 value; /* counter value */ 64 struct _SyncTriggerList *pTriglist; /* list of triggers */ 65 Bool beingDestroyed; /* in process of going away */ 66 struct _SysCounterInfo *pSysCounterInfo; /* NULL if not a system counter */ 67 } SyncCounter; 68 69 /* 70 * The System Counter interface 71 */ 72 73 typedef enum { 74 XSyncCounterNeverChanges, 75 XSyncCounterNeverIncreases, 76 XSyncCounterNeverDecreases, 77 XSyncCounterUnrestricted 78 } SyncCounterType; 79 80 typedef struct _SysCounterInfo { 81 char *name; 82 CARD64 resolution; 83 CARD64 bracket_greater; 84 CARD64 bracket_less; 85 SyncCounterType counterType; /* how can this counter change */ 86 void (*QueryValue)( 87 pointer /*pCounter*/, 88 CARD64 * /*freshvalue*/ 89 ); 90 void (*BracketValues)( 91 pointer /*pCounter*/, 92 CARD64 * /*lessthan*/, 93 CARD64 * /*greaterthan*/ 94 ); 95 } SysCounterInfo; 96 97 98 99 typedef struct _SyncTrigger { 100 SyncCounter *pCounter; 101 CARD64 wait_value; /* wait value */ 102 unsigned int value_type; /* Absolute or Relative */ 103 unsigned int test_type; /* transition or Comparision type */ 104 CARD64 test_value; /* trigger event threshold value */ 105 Bool (*CheckTrigger)( 106 struct _SyncTrigger * /*pTrigger*/, 107 CARD64 /*newval*/ 108 ); 109 void (*TriggerFired)( 110 struct _SyncTrigger * /*pTrigger*/ 111 ); 112 void (*CounterDestroyed)( 113 struct _SyncTrigger * /*pTrigger*/ 114 ); 115 } SyncTrigger; 116 117 typedef struct _SyncTriggerList { 118 SyncTrigger *pTrigger; 119 struct _SyncTriggerList *next; 120 } SyncTriggerList; 121 122 typedef struct _SyncAlarmClientList { 123 ClientPtr client; 124 XID delete_id; 125 struct _SyncAlarmClientList *next; 126 } SyncAlarmClientList; 127 128 typedef struct _SyncAlarm { 129 SyncTrigger trigger; 130 ClientPtr client; 131 XSyncAlarm alarm_id; 132 CARD64 delta; 133 int events; 134 int state; 135 SyncAlarmClientList *pEventClients; 136 } SyncAlarm; 137 138 typedef struct { 139 ClientPtr client; 140 CARD32 delete_id; 141 int num_waitconditions; 142 } SyncAwaitHeader; 143 144 typedef struct { 145 SyncTrigger trigger; 146 CARD64 event_threshold; 147 SyncAwaitHeader *pHeader; 148 } SyncAwait; 149 150 typedef union { 151 SyncAwaitHeader header; 152 SyncAwait await; 153 } SyncAwaitUnion; 154 155 156 extern pointer SyncCreateSystemCounter( 157 char * /* name */, 158 CARD64 /* inital_value */, 159 CARD64 /* resolution */, 160 SyncCounterType /* change characterization */, 161 void (* /*QueryValue*/ ) ( 162 pointer /* pCounter */, 163 CARD64 * /* pValue_return */), /* XXX prototype */ 164 void (* /*BracketValues*/) ( 165 pointer /* pCounter */, 166 CARD64 * /* pbracket_less */, 167 CARD64 * /* pbracket_greater */) 168 ); 169 170 extern void SyncChangeCounter( 171 SyncCounter * /* pCounter*/, 172 CARD64 /* new_value */ 173 ); 174 175 extern void SyncDestroySystemCounter( 176 pointer pCounter 177 ); 178 extern void InitServertime(void); 179 180 #endif /* _SYNC_SERVER */ 181 182 #endif /* _SYNCSTR_H_ */ 183
