diff options
Diffstat (limited to 'syncstr.h')
| -rw-r--r-- | syncstr.h | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/syncstr.h b/syncstr.h new file mode 100644 index 0000000..25a4827 --- /dev/null +++ b/syncstr.h @@ -0,0 +1,182 @@ +/* + +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. + +******************************************************************/ + +#ifndef _SYNCSTR_H_ +#define _SYNCSTR_H_ + +#include <X11/extensions/syncproto.h> + +#ifdef _SYNC_SERVER + +#define CARD64 XSyncValue /* XXX temporary! need real 64 bit values for Alpha */ + +typedef struct _SyncCounter { + ClientPtr client; /* Owning client. 0 for system counters */ + XSyncCounter id; /* resource ID */ + CARD64 value; /* counter value */ + struct _SyncTriggerList *pTriglist; /* list of triggers */ + Bool beingDestroyed; /* in process of going away */ + struct _SysCounterInfo *pSysCounterInfo; /* NULL if not a system counter */ +} SyncCounter; + +/* + * The System Counter interface + */ + +typedef enum { + XSyncCounterNeverChanges, + XSyncCounterNeverIncreases, + XSyncCounterNeverDecreases, + XSyncCounterUnrestricted +} SyncCounterType; + +typedef struct _SysCounterInfo { + char *name; + CARD64 resolution; + CARD64 bracket_greater; + CARD64 bracket_less; + SyncCounterType counterType; /* how can this counter change */ + void (*QueryValue)( + pointer /*pCounter*/, + CARD64 * /*freshvalue*/ +); + void (*BracketValues)( + pointer /*pCounter*/, + CARD64 * /*lessthan*/, + CARD64 * /*greaterthan*/ +); +} SysCounterInfo; + + + +typedef struct _SyncTrigger { + SyncCounter *pCounter; + CARD64 wait_value; /* wait value */ + unsigned int value_type; /* Absolute or Relative */ + unsigned int test_type; /* transition or Comparision type */ + CARD64 test_value; /* trigger event threshold value */ + Bool (*CheckTrigger)( + struct _SyncTrigger * /*pTrigger*/, + CARD64 /*newval*/ + ); + void (*TriggerFired)( + struct _SyncTrigger * /*pTrigger*/ + ); + void (*CounterDestroyed)( + struct _SyncTrigger * /*pTrigger*/ + ); +} SyncTrigger; + +typedef struct _SyncTriggerList { + SyncTrigger *pTrigger; + struct _SyncTriggerList *next; +} SyncTriggerList; + +typedef struct _SyncAlarmClientList { + ClientPtr client; + XID delete_id; + struct _SyncAlarmClientList *next; +} SyncAlarmClientList; + +typedef struct _SyncAlarm { + SyncTrigger trigger; + ClientPtr client; + XSyncAlarm alarm_id; + CARD64 delta; + int events; + int state; + SyncAlarmClientList *pEventClients; +} SyncAlarm; + +typedef struct { + ClientPtr client; + CARD32 delete_id; + int num_waitconditions; +} SyncAwaitHeader; + +typedef struct { + SyncTrigger trigger; + CARD64 event_threshold; + SyncAwaitHeader *pHeader; +} SyncAwait; + +typedef union { + SyncAwaitHeader header; + SyncAwait await; +} SyncAwaitUnion; + + +extern pointer SyncCreateSystemCounter( + char * /* name */, + CARD64 /* inital_value */, + CARD64 /* resolution */, + SyncCounterType /* change characterization */, + void (* /*QueryValue*/ ) ( + pointer /* pCounter */, + CARD64 * /* pValue_return */), /* XXX prototype */ + void (* /*BracketValues*/) ( + pointer /* pCounter */, + CARD64 * /* pbracket_less */, + CARD64 * /* pbracket_greater */) +); + +extern void SyncChangeCounter( + SyncCounter * /* pCounter*/, + CARD64 /* new_value */ +); + +extern void SyncDestroySystemCounter( + pointer pCounter +); +extern void InitServertime(void); + +#endif /* _SYNC_SERVER */ + +#endif /* _SYNCSTR_H_ */ |