182 lines
6.6 KiB
C
182 lines
6.6 KiB
C
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/*
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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 _SYNCCONST_H_
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#define _SYNCCONST_H_
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#define SYNC_NAME "SYNC"
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#define SYNC_MAJOR_VERSION 3
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#define SYNC_MINOR_VERSION 1
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#define XSyncCounterNotify 0
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#define XSyncAlarmNotify 1
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#define XSyncAlarmNotifyMask (1L << XSyncAlarmNotify)
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#define XSyncNumberEvents 2L
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#define XSyncBadCounter 0L
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#define XSyncBadAlarm 1L
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#define XSyncBadFence 2L
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#define XSyncNumberErrors (XSyncBadFence + 1)
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/*
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* Flags for Alarm Attributes
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*/
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#define XSyncCACounter (1L<<0)
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#define XSyncCAValueType (1L<<1)
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#define XSyncCAValue (1L<<2)
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#define XSyncCATestType (1L<<3)
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#define XSyncCADelta (1L<<4)
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#define XSyncCAEvents (1L<<5)
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/* The _XSync macros below are for library internal use only. They exist
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* so that if we have to make a fix, we can change it in this one place
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* and have both the macro and function variants inherit the fix.
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*/
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#define _XSyncIntToValue(pv, i) ((pv)->hi=((i<0)?~0:0),(pv)->lo=(i))
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#define _XSyncIntsToValue(pv, l, h) ((pv)->lo = (l), (pv)->hi = (h))
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#define _XSyncValueGreaterThan(a, b)\
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((a).hi>(b).hi || ((a).hi==(b).hi && (a).lo>(b).lo))
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#define _XSyncValueLessThan(a, b)\
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((a).hi<(b).hi || ((a).hi==(b).hi && (a).lo<(b).lo))
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#define _XSyncValueGreaterOrEqual(a, b)\
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((a).hi>(b).hi || ((a).hi==(b).hi && (a).lo>=(b).lo))
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#define _XSyncValueLessOrEqual(a, b)\
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((a).hi<(b).hi || ((a).hi==(b).hi && (a).lo<=(b).lo))
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#define _XSyncValueEqual(a, b) ((a).lo==(b).lo && (a).hi==(b).hi)
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#define _XSyncValueIsNegative(v) (((v).hi & 0x80000000) ? 1 : 0)
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#define _XSyncValueIsZero(a) ((a).lo==0 && (a).hi==0)
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#define _XSyncValueIsPositive(v) (((v).hi & 0x80000000) ? 0 : 1)
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#define _XSyncValueLow32(v) ((v).lo)
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#define _XSyncValueHigh32(v) ((v).hi)
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#define _XSyncValueAdd(presult,a,b,poverflow) {\
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int t = (a).lo;\
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Bool signa = XSyncValueIsNegative(a);\
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Bool signb = XSyncValueIsNegative(b);\
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((presult)->lo = (a).lo + (b).lo);\
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((presult)->hi = (a).hi + (b).hi);\
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if (t>(presult)->lo) (presult)->hi++;\
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*poverflow = ((signa == signb) && !(signa == XSyncValueIsNegative(*presult)));\
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}
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#define _XSyncValueSubtract(presult,a,b,poverflow) {\
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int t = (a).lo;\
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Bool signa = XSyncValueIsNegative(a);\
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Bool signb = XSyncValueIsNegative(b);\
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((presult)->lo = (a).lo - (b).lo);\
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((presult)->hi = (a).hi - (b).hi);\
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if (t<(presult)->lo) (presult)->hi--;\
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*poverflow = ((signa == signb) && !(signa == XSyncValueIsNegative(*presult)));\
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}
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#define _XSyncMaxValue(pv) ((pv)->hi = 0x7fffffff, (pv)->lo = 0xffffffff)
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#define _XSyncMinValue(pv) ((pv)->hi = 0x80000000, (pv)->lo = 0)
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/*
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* These are the publically usable macros. If you want the function version
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* of one of these, just #undef the macro to uncover the function.
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* (This is the same convention that the ANSI C library uses.)
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*/
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#define XSyncIntToValue(pv, i) _XSyncIntToValue(pv, i)
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#define XSyncIntsToValue(pv, l, h) _XSyncIntsToValue(pv, l, h)
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#define XSyncValueGreaterThan(a, b) _XSyncValueGreaterThan(a, b)
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#define XSyncValueLessThan(a, b) _XSyncValueLessThan(a, b)
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#define XSyncValueGreaterOrEqual(a, b) _XSyncValueGreaterOrEqual(a, b)
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#define XSyncValueLessOrEqual(a, b) _XSyncValueLessOrEqual(a, b)
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#define XSyncValueEqual(a, b) _XSyncValueEqual(a, b)
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#define XSyncValueIsNegative(v) _XSyncValueIsNegative(v)
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#define XSyncValueIsZero(a) _XSyncValueIsZero(a)
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#define XSyncValueIsPositive(v) _XSyncValueIsPositive(v)
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#define XSyncValueLow32(v) _XSyncValueLow32(v)
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#define XSyncValueHigh32(v) _XSyncValueHigh32(v)
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#define XSyncValueAdd(presult,a,b,poverflow) _XSyncValueAdd(presult,a,b,poverflow)
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#define XSyncValueSubtract(presult,a,b,poverflow) _XSyncValueSubtract(presult,a,b,poverflow)
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#define XSyncMaxValue(pv) _XSyncMaxValue(pv)
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#define XSyncMinValue(pv) _XSyncMinValue(pv)
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/*
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* Constants for the value_type argument of various requests
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*/
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typedef enum {
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XSyncAbsolute,
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XSyncRelative
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} XSyncValueType;
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/*
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* Alarm Test types
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*/
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typedef enum {
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XSyncPositiveTransition,
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XSyncNegativeTransition,
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XSyncPositiveComparison,
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XSyncNegativeComparison
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} XSyncTestType;
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/*
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* Alarm state constants
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*/
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typedef enum {
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XSyncAlarmActive,
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XSyncAlarmInactive,
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XSyncAlarmDestroyed
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} XSyncAlarmState;
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typedef XID XSyncCounter;
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typedef XID XSyncAlarm;
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typedef XID XSyncFence;
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typedef struct _XSyncValue {
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int hi;
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unsigned int lo;
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} XSyncValue;
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#endif /* _SYNCCONST_H_ */
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