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+/* $Xorg: sync.h,v 1.4 2001/02/09 02:03:24 xorgcvs Exp $ */
+/*
+
+Copyright 1991, 1993, 1994, 1998 The Open Group
+
+Permission to use, copy, modify, distribute, and sell this software and its
+documentation for any purpose is hereby granted without fee, provided that
+the above copyright notice appear in all copies and that both that
+copyright notice and this permission notice appear in supporting
+documentation.
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name of The Open Group shall not be
+used in advertising or otherwise to promote the sale, use or other dealings
+in this Software without prior written authorization from The Open Group.
+
+*/
+
+/***********************************************************
+Copyright 1991,1993 by Digital Equipment Corporation, Maynard, Massachusetts,
+and Olivetti Research Limited, Cambridge, England.
+
+ All Rights Reserved
+
+Permission to use, copy, modify, and distribute this software and its
+documentation for any purpose and without fee is hereby granted,
+provided that the above copyright notice appear in all copies and that
+both that copyright notice and this permission notice appear in
+supporting documentation, and that the names of Digital or Olivetti
+not be used in advertising or publicity pertaining to distribution of the
+software without specific, written prior permission.
+
+DIGITAL AND OLIVETTI DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
+SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
+FITNESS, IN NO EVENT SHALL THEY BE LIABLE FOR ANY SPECIAL, INDIRECT OR
+CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF
+USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THIS SOFTWARE.
+
+******************************************************************/
+/* $XFree86: xc/include/extensions/sync.h,v 1.4 2001/12/20 19:40:59 tsi Exp $ */
+
+#ifndef _SYNC_H_
+#define _SYNC_H_
+
+#include <X11/Xfuncproto.h>
+
+_XFUNCPROTOBEGIN
+
+#define SYNC_NAME "SYNC"
+
+#define SYNC_MAJOR_VERSION 3
+#define SYNC_MINOR_VERSION 0
+
+#define X_SyncInitialize 0
+#define X_SyncListSystemCounters 1
+#define X_SyncCreateCounter 2
+#define X_SyncSetCounter 3
+#define X_SyncChangeCounter 4
+#define X_SyncQueryCounter 5
+#define X_SyncDestroyCounter 6
+#define X_SyncAwait 7
+#define X_SyncCreateAlarm 8
+#define X_SyncChangeAlarm 9
+#define X_SyncQueryAlarm 10
+#define X_SyncDestroyAlarm 11
+#define X_SyncSetPriority 12
+#define X_SyncGetPriority 13
+
+#define XSyncCounterNotify 0
+#define XSyncAlarmNotify 1
+#define XSyncAlarmNotifyMask (1L << XSyncAlarmNotify)
+
+#define XSyncNumberEvents 2L
+
+#define XSyncBadCounter 0L
+#define XSyncBadAlarm 1L
+#define XSyncNumberErrors (XSyncBadAlarm + 1)
+
+/*
+ * Flags for Alarm Attributes
+ */
+#define XSyncCACounter (1L<<0)
+#define XSyncCAValueType (1L<<1)
+#define XSyncCAValue (1L<<2)
+#define XSyncCATestType (1L<<3)
+#define XSyncCADelta (1L<<4)
+#define XSyncCAEvents (1L<<5)
+
+/*
+ * Constants for the value_type argument of various requests
+ */
+typedef enum {
+ XSyncAbsolute,
+ XSyncRelative
+} XSyncValueType;
+
+/*
+ * Alarm Test types
+ */
+typedef enum {
+ XSyncPositiveTransition,
+ XSyncNegativeTransition,
+ XSyncPositiveComparison,
+ XSyncNegativeComparison
+} XSyncTestType;
+
+/*
+ * Alarm state constants
+ */
+typedef enum {
+ XSyncAlarmActive,
+ XSyncAlarmInactive,
+ XSyncAlarmDestroyed
+} XSyncAlarmState;
+
+
+typedef XID XSyncCounter;
+typedef XID XSyncAlarm;
+typedef struct _XSyncValue {
+ int hi;
+ unsigned int lo;
+} XSyncValue;
+
+/*
+ * Macros/functions for manipulating 64 bit values
+ */
+
+/* have to put these prototypes before the corresponding macro definitions */
+
+extern void XSyncIntToValue(
+ XSyncValue* /*pv*/,
+ int /*i*/
+);
+
+extern void XSyncIntsToValue(
+ XSyncValue* /*pv*/,
+ unsigned int /*l*/,
+ int /*h*/
+);
+
+extern Bool XSyncValueGreaterThan(
+ XSyncValue /*a*/,
+ XSyncValue /*b*/
+);
+
+extern Bool XSyncValueLessThan(
+ XSyncValue /*a*/,
+ XSyncValue /*b*/
+);
+
+extern Bool XSyncValueGreaterOrEqual(
+ XSyncValue /*a*/,
+ XSyncValue /*b*/
+);
+
+extern Bool XSyncValueLessOrEqual(
+ XSyncValue /*a*/,
+ XSyncValue /*b*/
+);
+
+extern Bool XSyncValueEqual(
+ XSyncValue /*a*/,
+ XSyncValue /*b*/
+);
+
+extern Bool XSyncValueIsNegative(
+ XSyncValue /*v*/
+);
+
+extern Bool XSyncValueIsZero(
+ XSyncValue /*a*/
+);
+
+extern Bool XSyncValueIsPositive(
+ XSyncValue /*v*/
+);
+
+extern unsigned int XSyncValueLow32(
+ XSyncValue /*v*/
+);
+
+extern int XSyncValueHigh32(
+ XSyncValue /*v*/
+);
+
+extern void XSyncValueAdd(
+ XSyncValue* /*presult*/,
+ XSyncValue /*a*/,
+ XSyncValue /*b*/,
+ int* /*poverflow*/
+);
+
+extern void XSyncValueSubtract(
+ XSyncValue* /*presult*/,
+ XSyncValue /*a*/,
+ XSyncValue /*b*/,
+ int* /*poverflow*/
+);
+
+extern void XSyncMaxValue(
+ XSyncValue* /*pv*/
+);
+
+extern void XSyncMinValue(
+ XSyncValue* /*pv*/
+);
+
+_XFUNCPROTOEND
+
+/* The _XSync macros below are for library internal use only. They exist
+ * so that if we have to make a fix, we can change it in this one place
+ * and have both the macro and function variants inherit the fix.
+ */
+
+#define _XSyncIntToValue(pv, i) ((pv)->hi=((i<0)?~0:0),(pv)->lo=(i))
+#define _XSyncIntsToValue(pv, l, h) ((pv)->lo = (l), (pv)->hi = (h))
+#define _XSyncValueGreaterThan(a, b)\
+ ((a).hi>(b).hi || ((a).hi==(b).hi && (a).lo>(b).lo))
+#define _XSyncValueLessThan(a, b)\
+ ((a).hi<(b).hi || ((a).hi==(b).hi && (a).lo<(b).lo))
+#define _XSyncValueGreaterOrEqual(a, b)\
+ ((a).hi>(b).hi || ((a).hi==(b).hi && (a).lo>=(b).lo))
+#define _XSyncValueLessOrEqual(a, b)\
+ ((a).hi<(b).hi || ((a).hi==(b).hi && (a).lo<=(b).lo))
+#define _XSyncValueEqual(a, b) ((a).lo==(b).lo && (a).hi==(b).hi)
+#define _XSyncValueIsNegative(v) (((v).hi & 0x80000000) ? 1 : 0)
+#define _XSyncValueIsZero(a) ((a).lo==0 && (a).hi==0)
+#define _XSyncValueIsPositive(v) (((v).hi & 0x80000000) ? 0 : 1)
+#define _XSyncValueLow32(v) ((v).lo)
+#define _XSyncValueHigh32(v) ((v).hi)
+#define _XSyncValueAdd(presult,a,b,poverflow) {\
+ int t = (a).lo;\
+ Bool signa = XSyncValueIsNegative(a);\
+ Bool signb = XSyncValueIsNegative(b);\
+ ((presult)->lo = (a).lo + (b).lo);\
+ ((presult)->hi = (a).hi + (b).hi);\
+ if (t>(presult)->lo) (presult)->hi++;\
+ *poverflow = ((signa == signb) && !(signa == XSyncValueIsNegative(*presult)));\
+ }
+#define _XSyncValueSubtract(presult,a,b,poverflow) {\
+ int t = (a).lo;\
+ Bool signa = XSyncValueIsNegative(a);\
+ Bool signb = XSyncValueIsNegative(b);\
+ ((presult)->lo = (a).lo - (b).lo);\
+ ((presult)->hi = (a).hi - (b).hi);\
+ if (t>(presult)->lo) (presult)->hi--;\
+ *poverflow = ((signa == signb) && !(signa == XSyncValueIsNegative(*presult)));\
+ }
+#define _XSyncMaxValue(pv) ((pv)->hi = 0x7fffffff, (pv)->lo = 0xffffffff)
+#define _XSyncMinValue(pv) ((pv)->hi = 0x80000000, (pv)->lo = 0)
+
+/*
+ * These are the publically usable macros. If you want the function version
+ * of one of these, just #undef the macro to uncover the function.
+ * (This is the same convention that the ANSI C library uses.)
+ */
+
+#define XSyncIntToValue(pv, i) _XSyncIntToValue(pv, i)
+#define XSyncIntsToValue(pv, l, h) _XSyncIntsToValue(pv, l, h)
+#define XSyncValueGreaterThan(a, b) _XSyncValueGreaterThan(a, b)
+#define XSyncValueLessThan(a, b) _XSyncValueLessThan(a, b)
+#define XSyncValueGreaterOrEqual(a, b) _XSyncValueGreaterOrEqual(a, b)
+#define XSyncValueLessOrEqual(a, b) _XSyncValueLessOrEqual(a, b)
+#define XSyncValueEqual(a, b) _XSyncValueEqual(a, b)
+#define XSyncValueIsNegative(v) _XSyncValueIsNegative(v)
+#define XSyncValueIsZero(a) _XSyncValueIsZero(a)
+#define XSyncValueIsPositive(v) _XSyncValueIsPositive(v)
+#define XSyncValueLow32(v) _XSyncValueLow32(v)
+#define XSyncValueHigh32(v) _XSyncValueHigh32(v)
+#define XSyncValueAdd(presult,a,b,poverflow) _XSyncValueAdd(presult,a,b,poverflow)
+#define XSyncValueSubtract(presult,a,b,poverflow) _XSyncValueSubtract(presult,a,b,poverflow)
+#define XSyncMaxValue(pv) _XSyncMaxValue(pv)
+#define XSyncMinValue(pv) _XSyncMinValue(pv)
+
+#ifndef _SYNC_SERVER
+
+typedef struct _XSyncSystemCounter {
+ char *name; /* null-terminated name of system counter */
+ XSyncCounter counter; /* counter id of this system counter */
+ XSyncValue resolution; /* resolution of this system counter */
+} XSyncSystemCounter;
+
+
+typedef struct {
+ XSyncCounter counter; /* counter to trigger on */
+ XSyncValueType value_type; /* absolute/relative */
+ XSyncValue wait_value; /* value to compare counter to */
+ XSyncTestType test_type; /* pos/neg comparison/transtion */
+} XSyncTrigger;
+
+typedef struct {
+ XSyncTrigger trigger; /* trigger for await */
+ XSyncValue event_threshold; /* send event if past threshold */
+} XSyncWaitCondition;
+
+
+typedef struct {
+ XSyncTrigger trigger;
+ XSyncValue delta;
+ Bool events;
+ XSyncAlarmState state;
+} XSyncAlarmAttributes;
+
+/*
+ * Events
+ */
+
+typedef struct {
+ int type; /* event base + XSyncCounterNotify */
+ unsigned long serial; /* # of last request processed by server */
+ Bool send_event; /* true if this came from a SendEvent request */
+ Display *display; /* Display the event was read from */
+ XSyncCounter counter; /* counter involved in await */
+ XSyncValue wait_value; /* value being waited for */
+ XSyncValue counter_value; /* counter value when this event was sent */
+ Time time; /* milliseconds */
+ int count; /* how many more events to come */
+ Bool destroyed; /* True if counter was destroyed */
+} XSyncCounterNotifyEvent;
+
+typedef struct {
+ int type; /* event base + XSyncCounterNotify */
+ unsigned long serial; /* # of last request processed by server */
+ Bool send_event; /* true if this came from a SendEvent request */
+ Display *display; /* Display the event was read from */
+ XSyncAlarm alarm; /* alarm that triggered */
+ XSyncValue counter_value; /* value that triggered the alarm */
+ XSyncValue alarm_value; /* test value of trigger in alarm */
+ Time time; /* milliseconds */
+ XSyncAlarmState state; /* new state of alarm */
+} XSyncAlarmNotifyEvent;
+
+/*
+ * Errors
+ */
+
+typedef struct {
+ int type;
+ Display *display; /* Display the event was read from */
+ XSyncAlarm alarm; /* resource id */
+ unsigned long serial; /* serial number of failed request */
+ unsigned char error_code; /* error base + XSyncBadAlarm */
+ unsigned char request_code; /* Major op-code of failed request */
+ unsigned char minor_code; /* Minor op-code of failed request */
+} XSyncAlarmError;
+
+typedef struct {
+ int type;
+ Display *display; /* Display the event was read from */
+ XSyncCounter counter; /* resource id */
+ unsigned long serial; /* serial number of failed request */
+ unsigned char error_code; /* error base + XSyncBadCounter */
+ unsigned char request_code; /* Major op-code of failed request */
+ unsigned char minor_code; /* Minor op-code of failed request */
+} XSyncCounterError;
+
+/*
+ * Prototypes
+ */
+
+_XFUNCPROTOBEGIN
+
+extern Status XSyncQueryExtension(
+ Display* /*dpy*/,
+ int* /*event_base_return*/,
+ int* /*error_base_return*/
+);
+
+extern Status XSyncInitialize(
+ Display* /*dpy*/,
+ int* /*major_version_return*/,
+ int* /*minor_version_return*/
+);
+
+extern XSyncSystemCounter *XSyncListSystemCounters(
+ Display* /*dpy*/,
+ int* /*n_counters_return*/
+);
+
+extern void XSyncFreeSystemCounterList(
+ XSyncSystemCounter* /*list*/
+);
+
+extern XSyncCounter XSyncCreateCounter(
+ Display* /*dpy*/,
+ XSyncValue /*initial_value*/
+);
+
+extern Status XSyncSetCounter(
+ Display* /*dpy*/,
+ XSyncCounter /*counter*/,
+ XSyncValue /*value*/
+);
+
+extern Status XSyncChangeCounter(
+ Display* /*dpy*/,
+ XSyncCounter /*counter*/,
+ XSyncValue /*value*/
+);
+
+extern Status XSyncDestroyCounter(
+ Display* /*dpy*/,
+ XSyncCounter /*counter*/
+);
+
+extern Status XSyncQueryCounter(
+ Display* /*dpy*/,
+ XSyncCounter /*counter*/,
+ XSyncValue* /*value_return*/
+);
+
+extern Status XSyncAwait(
+ Display* /*dpy*/,
+ XSyncWaitCondition* /*wait_list*/,
+ int /*n_conditions*/
+);
+
+extern XSyncAlarm XSyncCreateAlarm(
+ Display* /*dpy*/,
+ unsigned long /*values_mask*/,
+ XSyncAlarmAttributes* /*values*/
+);
+
+extern Status XSyncDestroyAlarm(
+ Display* /*dpy*/,
+ XSyncAlarm /*alarm*/
+);
+
+extern Status XSyncQueryAlarm(
+ Display* /*dpy*/,
+ XSyncAlarm /*alarm*/,
+ XSyncAlarmAttributes* /*values_return*/
+);
+
+extern Status XSyncChangeAlarm(
+ Display* /*dpy*/,
+ XSyncAlarm /*alarm*/,
+ unsigned long /*values_mask*/,
+ XSyncAlarmAttributes* /*values*/
+);
+
+extern Status XSyncSetPriority(
+ Display* /*dpy*/,
+ XID /*client_resource_id*/,
+ int /*priority*/
+);
+
+extern Status XSyncGetPriority(
+ Display* /*dpy*/,
+ XID /*client_resource_id*/,
+ int* /*return_priority*/
+);
+
+#endif /* _SYNC_SERVER */
+
+_XFUNCPROTOEND
+
+#endif /* _SYNC_H_ */