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 _SYNCCONST_H_ 52 #define _SYNCCONST_H_ 53 54 #define SYNC_NAME "SYNC" 55 56 #define SYNC_MAJOR_VERSION 3 57 #define SYNC_MINOR_VERSION 1 58 59 60 #define XSyncCounterNotify 0 61 #define XSyncAlarmNotify 1 62 #define XSyncAlarmNotifyMask (1L << XSyncAlarmNotify) 63 64 #define XSyncNumberEvents 2L 65 66 #define XSyncBadCounter 0L 67 #define XSyncBadAlarm 1L 68 #define XSyncBadFence 2L 69 #define XSyncNumberErrors (XSyncBadFence + 1) 70 71 /* 72 * Flags for Alarm Attributes 73 */ 74 #define XSyncCACounter (1L<<0) 75 #define XSyncCAValueType (1L<<1) 76 #define XSyncCAValue (1L<<2) 77 #define XSyncCATestType (1L<<3) 78 #define XSyncCADelta (1L<<4) 79 #define XSyncCAEvents (1L<<5) 80 81 /* The _XSync macros below are for library internal use only. They exist 82 * so that if we have to make a fix, we can change it in this one place 83 * and have both the macro and function variants inherit the fix. 84 */ 85 86 #define _XSyncIntToValue(pv, i) ((pv)->hi=((i<0)?~0:0),(pv)->lo=(i)) 87 #define _XSyncIntsToValue(pv, l, h) ((pv)->lo = (l), (pv)->hi = (h)) 88 #define _XSyncValueGreaterThan(a, b)\ 89 ((a).hi>(b).hi || ((a).hi==(b).hi && (a).lo>(b).lo)) 90 #define _XSyncValueLessThan(a, b)\ 91 ((a).hi<(b).hi || ((a).hi==(b).hi && (a).lo<(b).lo)) 92 #define _XSyncValueGreaterOrEqual(a, b)\ 93 ((a).hi>(b).hi || ((a).hi==(b).hi && (a).lo>=(b).lo)) 94 #define _XSyncValueLessOrEqual(a, b)\ 95 ((a).hi<(b).hi || ((a).hi==(b).hi && (a).lo<=(b).lo)) 96 #define _XSyncValueEqual(a, b) ((a).lo==(b).lo && (a).hi==(b).hi) 97 #define _XSyncValueIsNegative(v) (((v).hi & 0x80000000) ? 1 : 0) 98 #define _XSyncValueIsZero(a) ((a).lo==0 && (a).hi==0) 99 #define _XSyncValueIsPositive(v) (((v).hi & 0x80000000) ? 0 : 1) 100 #define _XSyncValueLow32(v) ((v).lo) 101 #define _XSyncValueHigh32(v) ((v).hi) 102 #define _XSyncValueAdd(presult,a,b,poverflow) {\ 103 int t = (a).lo;\ 104 Bool signa = XSyncValueIsNegative(a);\ 105 Bool signb = XSyncValueIsNegative(b);\ 106 ((presult)->lo = (a).lo + (b).lo);\ 107 ((presult)->hi = (a).hi + (b).hi);\ 108 if (t>(presult)->lo) (presult)->hi++;\ 109 *poverflow = ((signa == signb) && !(signa == XSyncValueIsNegative(*presult)));\ 110 } 111 #define _XSyncValueSubtract(presult,a,b,poverflow) {\ 112 int t = (a).lo;\ 113 Bool signa = XSyncValueIsNegative(a);\ 114 Bool signb = XSyncValueIsNegative(b);\ 115 ((presult)->lo = (a).lo - (b).lo);\ 116 ((presult)->hi = (a).hi - (b).hi);\ 117 if (t<(presult)->lo) (presult)->hi--;\ 118 *poverflow = ((signa == signb) && !(signa == XSyncValueIsNegative(*presult)));\ 119 } 120 #define _XSyncMaxValue(pv) ((pv)->hi = 0x7fffffff, (pv)->lo = 0xffffffff) 121 #define _XSyncMinValue(pv) ((pv)->hi = 0x80000000, (pv)->lo = 0) 122 123 /* 124 * These are the publically usable macros. If you want the function version 125 * of one of these, just #undef the macro to uncover the function. 126 * (This is the same convention that the ANSI C library uses.) 127 */ 128 129 #define XSyncIntToValue(pv, i) _XSyncIntToValue(pv, i) 130 #define XSyncIntsToValue(pv, l, h) _XSyncIntsToValue(pv, l, h) 131 #define XSyncValueGreaterThan(a, b) _XSyncValueGreaterThan(a, b) 132 #define XSyncValueLessThan(a, b) _XSyncValueLessThan(a, b) 133 #define XSyncValueGreaterOrEqual(a, b) _XSyncValueGreaterOrEqual(a, b) 134 #define XSyncValueLessOrEqual(a, b) _XSyncValueLessOrEqual(a, b) 135 #define XSyncValueEqual(a, b) _XSyncValueEqual(a, b) 136 #define XSyncValueIsNegative(v) _XSyncValueIsNegative(v) 137 #define XSyncValueIsZero(a) _XSyncValueIsZero(a) 138 #define XSyncValueIsPositive(v) _XSyncValueIsPositive(v) 139 #define XSyncValueLow32(v) _XSyncValueLow32(v) 140 #define XSyncValueHigh32(v) _XSyncValueHigh32(v) 141 #define XSyncValueAdd(presult,a,b,poverflow) _XSyncValueAdd(presult,a,b,poverflow) 142 #define XSyncValueSubtract(presult,a,b,poverflow) _XSyncValueSubtract(presult,a,b,poverflow) 143 #define XSyncMaxValue(pv) _XSyncMaxValue(pv) 144 #define XSyncMinValue(pv) _XSyncMinValue(pv) 145 146 /* 147 * Constants for the value_type argument of various requests 148 */ 149 typedef enum { 150 XSyncAbsolute, 151 XSyncRelative 152 } XSyncValueType; 153 154 /* 155 * Alarm Test types 156 */ 157 typedef enum { 158 XSyncPositiveTransition, 159 XSyncNegativeTransition, 160 XSyncPositiveComparison, 161 XSyncNegativeComparison 162 } XSyncTestType; 163 164 /* 165 * Alarm state constants 166 */ 167 typedef enum { 168 XSyncAlarmActive, 169 XSyncAlarmInactive, 170 XSyncAlarmDestroyed 171 } XSyncAlarmState; 172 173 174 typedef XID XSyncCounter; 175 typedef XID XSyncAlarm; 176 typedef XID XSyncFence; 177 typedef struct _XSyncValue { 178 int hi; 179 unsigned int lo; 180 } XSyncValue; 181 #endif /* _SYNCCONST_H_ */ 182
