Create SyncObject base type.
SyncObject is now the base type for SyncCounter. Data to be used by all sync types is stored in the base object. SyncCounter can be safely cast to SyncObject, and a SyncObject can be cast to the correct type based on SyncObject::type. Signed-off-by: James Jones <jajones@nvidia.com> Reviewed-by: Keith Packard <keithp@keithp.com>
This commit is contained in:
James Jones
parent
27593eea7e
commit
99daf419a3
95
Xext/sync.c
95
Xext/sync.c
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@ -89,7 +89,7 @@ static int SyncNumSystemCounters = 0;
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static SyncCounter **SysCounterList = NULL;
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#define IsSystemCounter(pCounter) \
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(pCounter && (pCounter->client == NULL))
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(pCounter && (pCounter->sync.client == NULL))
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/* these are all the alarm attributes that pertain to the alarm's trigger */
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#define XSyncCAAllTrigger \
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@ -118,7 +118,7 @@ SyncDeleteTriggerFromCounter(SyncTrigger *pTrigger)
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return;
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pPrev = NULL;
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pCur = pTrigger->pCounter->pTriglist;
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pCur = pTrigger->pCounter->sync.pTriglist;
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while (pCur)
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{
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@ -127,7 +127,7 @@ SyncDeleteTriggerFromCounter(SyncTrigger *pTrigger)
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if (pPrev)
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pPrev->next = pCur->next;
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else
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pTrigger->pCounter->pTriglist = pCur->next;
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pTrigger->pCounter->sync.pTriglist = pCur->next;
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free(pCur);
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break;
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@ -151,7 +151,7 @@ SyncAddTriggerToCounter(SyncTrigger *pTrigger)
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return Success;
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/* don't do anything if it's already there */
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for (pCur = pTrigger->pCounter->pTriglist; pCur; pCur = pCur->next)
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for (pCur = pTrigger->pCounter->sync.pTriglist; pCur; pCur = pCur->next)
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{
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if (pCur->pTrigger == pTrigger)
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return Success;
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@ -161,8 +161,8 @@ SyncAddTriggerToCounter(SyncTrigger *pTrigger)
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return BadAlloc;
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pCur->pTrigger = pTrigger;
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pCur->next = pTrigger->pCounter->pTriglist;
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pTrigger->pCounter->pTriglist = pCur;
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pCur->next = pTrigger->pCounter->sync.pTriglist;
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pTrigger->pCounter->sync.pTriglist = pCur;
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if (IsSystemCounter(pTrigger->pCounter))
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SyncComputeBracketValues(pTrigger->pCounter);
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@ -390,14 +390,14 @@ SyncSendCounterNotifyEvents(ClientPtr client, SyncAwait **ppAwait,
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SyncTrigger *pTrigger = &(*ppAwait)->trigger;
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pev->type = SyncEventBase + XSyncCounterNotify;
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pev->kind = XSyncCounterNotify;
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pev->counter = pTrigger->pCounter->id;
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pev->counter = pTrigger->pCounter->sync.id;
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pev->wait_value_lo = XSyncValueLow32(pTrigger->test_value);
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pev->wait_value_hi = XSyncValueHigh32(pTrigger->test_value);
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pev->counter_value_lo = XSyncValueLow32(pTrigger->pCounter->value);
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pev->counter_value_hi = XSyncValueHigh32(pTrigger->pCounter->value);
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pev->time = currentTime.milliseconds;
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pev->count = num_events - i - 1; /* events remaining */
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pev->destroyed = pTrigger->pCounter->beingDestroyed;
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pev->destroyed = pTrigger->pCounter->sync.beingDestroyed;
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}
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/* swapping will be taken care of by this */
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WriteEventsToClient(client, num_events, (xEvent *)pEvents);
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@ -532,7 +532,7 @@ SyncAwaitTriggerFired(SyncTrigger *pTrigger)
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* always generated if the counter for one of the triggers is
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* destroyed."
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*/
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if (pAwait->trigger.pCounter->beingDestroyed)
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if (pAwait->trigger.pCounter->sync.beingDestroyed)
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{
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ppAwait[num_events++] = pAwait;
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continue;
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@ -600,7 +600,7 @@ SyncChangeCounter(SyncCounter *pCounter, CARD64 newval)
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pCounter->value = newval;
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/* run through triggers to see if any become true */
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for (ptl = pCounter->pTriglist; ptl; ptl = pnext)
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for (ptl = pCounter->sync.pTriglist; ptl; ptl = pnext)
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{
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pnext = ptl->next;
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if ((*ptl->pTrigger->CheckTrigger)(ptl->pTrigger, oldval))
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@ -692,7 +692,8 @@ SyncChangeAlarmAttributes(ClientPtr client, SyncAlarm *pAlarm, Mask mask,
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XSyncCounter counter;
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Mask origmask = mask;
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counter = pAlarm->trigger.pCounter ? pAlarm->trigger.pCounter->id : None;
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counter =
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pAlarm->trigger.pCounter ? pAlarm->trigger.pCounter->sync.id : None;
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while (mask)
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{
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@ -781,26 +782,52 @@ SyncChangeAlarmAttributes(ClientPtr client, SyncAlarm *pAlarm, Mask mask,
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return Success;
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}
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static SyncObject *
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SyncCreate(ClientPtr client, XID id, unsigned char type)
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{
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SyncObject *pSync;
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RESTYPE resType;
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unsigned long syncSize;
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switch (type) {
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case SYNC_COUNTER:
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resType = RTCounter;
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syncSize = sizeof(SyncCounter);
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break;
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default:
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return NULL;
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}
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if (!(pSync = (SyncObject *)malloc(syncSize)))
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return NULL;
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if (!AddResource(id, resType, (pointer) pSync))
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{
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free(pSync);
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return NULL;
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}
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pSync->client = client;
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pSync->id = id;
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pSync->pTriglist = NULL;
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pSync->beingDestroyed = FALSE;
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pSync->type = type;
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return pSync;
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}
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static SyncCounter *
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SyncCreateCounter(ClientPtr client, XSyncCounter id, CARD64 initialvalue)
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{
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SyncCounter *pCounter;
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if (!(pCounter = malloc(sizeof(SyncCounter))))
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if (!(pCounter = (SyncCounter *)SyncCreate(client,
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id,
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SYNC_COUNTER)))
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return NULL;
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if (!AddResource(id, RTCounter, (pointer) pCounter))
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{
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free(pCounter);
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return NULL;
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}
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pCounter->client = client;
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pCounter->id = id;
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pCounter->value = initialvalue;
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pCounter->pTriglist = NULL;
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pCounter->beingDestroyed = FALSE;
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pCounter->pSysCounterInfo = NULL;
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return pCounter;
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}
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@ -852,7 +879,7 @@ SyncCreateSystemCounter(
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psci = malloc(sizeof(SysCounterInfo));
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if (!psci)
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{
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FreeResource(pCounter->id, RT_NONE);
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FreeResource(pCounter->sync.id, RT_NONE);
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return pCounter;
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}
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pCounter->pSysCounterInfo = psci;
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@ -872,7 +899,7 @@ void
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SyncDestroySystemCounter(pointer pSysCounter)
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{
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SyncCounter *pCounter = (SyncCounter *)pSysCounter;
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FreeResource(pCounter->id, RT_NONE);
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FreeResource(pCounter->sync.id, RT_NONE);
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}
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static void
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@ -896,7 +923,7 @@ SyncComputeBracketValues(SyncCounter *pCounter)
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XSyncMaxValue(&psci->bracket_greater);
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XSyncMinValue(&psci->bracket_less);
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for (pCur = pCounter->pTriglist; pCur; pCur = pCur->next)
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for (pCur = pCounter->sync.pTriglist; pCur; pCur = pCur->next)
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{
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pTrigger = pCur->pTrigger;
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@ -986,9 +1013,9 @@ FreeCounter(void *env, XID id)
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SyncCounter *pCounter = (SyncCounter *) env;
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SyncTriggerList *ptl, *pnext;
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pCounter->beingDestroyed = TRUE;
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pCounter->sync.beingDestroyed = TRUE;
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/* tell all the counter's triggers that the counter has been destroyed */
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for (ptl = pCounter->pTriglist; ptl; ptl = pnext)
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for (ptl = pCounter->sync.pTriglist; ptl; ptl = pnext)
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{
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(*ptl->pTrigger->CounterDestroyed)(ptl->pTrigger);
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pnext = ptl->next;
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@ -1048,7 +1075,7 @@ FreeAwait(void *addr, XID id)
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* the trigger list itself, so don't do it here.
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*/
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SyncCounter *pCounter = pAwait->trigger.pCounter;
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if (pCounter && !pCounter->beingDestroyed)
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if (pCounter && !pCounter->sync.beingDestroyed)
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SyncDeleteTriggerFromCounter(&pAwait->trigger);
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}
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free(pAwaitUnion);
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@ -1158,7 +1185,7 @@ ProcSyncListSystemCounters(ClientPtr client)
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char *pname_in_reply;
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SysCounterInfo *psci = SysCounterList[i]->pSysCounterInfo;
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walklist->counter = SysCounterList[i]->id;
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walklist->counter = SysCounterList[i]->sync.id;
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walklist->resolution_hi = XSyncValueHigh32(psci->resolution);
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walklist->resolution_lo = XSyncValueLow32(psci->resolution);
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namelen = strlen(psci->name);
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@ -1371,7 +1398,7 @@ ProcSyncDestroyCounter(ClientPtr client)
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client->errorValue = stuff->counter;
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return BadAccess;
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}
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FreeResource(pCounter->id, RT_NONE);
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FreeResource(pCounter->sync.id, RT_NONE);
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return Success;
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}
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@ -1677,7 +1704,7 @@ ProcSyncQueryAlarm(ClientPtr client)
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rep.sequenceNumber = client->sequence;
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pTrigger = &pAlarm->trigger;
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rep.counter = (pTrigger->pCounter) ? pTrigger->pCounter->id : None;
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rep.counter = (pTrigger->pCounter) ? pTrigger->pCounter->sync.id : None;
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#if 0 /* XXX unclear what to do, depends on whether relative value-types
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* are "consumed" immediately and are considered absolute from then
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@ -2243,7 +2270,7 @@ static void
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IdleTimeBlockHandler(pointer env, struct timeval **wt, pointer LastSelectMask)
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{
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XSyncValue idle, old_idle;
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SyncTriggerList *list = IdleTimeCounter->pTriglist;
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SyncTriggerList *list = IdleTimeCounter->sync.pTriglist;
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SyncTrigger *trig;
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if (!pIdleTimeValueLess && !pIdleTimeValueGreater)
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@ -2264,7 +2291,7 @@ IdleTimeBlockHandler(pointer env, struct timeval **wt, pointer LastSelectMask)
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* immediately so we can reschedule.
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*/
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for (list = IdleTimeCounter->pTriglist; list; list = list->next) {
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for (list = IdleTimeCounter->sync.pTriglist; list; list = list->next) {
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trig = list->pTrigger;
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if (trig->CheckTrigger(trig, old_idle)) {
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AdjustWaitForDelay(wt, 0);
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@ -2290,7 +2317,7 @@ IdleTimeBlockHandler(pointer env, struct timeval **wt, pointer LastSelectMask)
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idle, &overflow);
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timeout = min(timeout, XSyncValueLow32 (value));
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} else {
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for (list = IdleTimeCounter->pTriglist; list; list = list->next) {
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for (list = IdleTimeCounter->sync.pTriglist; list; list = list->next) {
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trig = list->pTrigger;
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if (trig->CheckTrigger(trig, old_idle)) {
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timeout = min(timeout, 0);
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@ -53,12 +53,20 @@ PERFORMANCE OF THIS SOFTWARE.
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#define CARD64 XSyncValue /* XXX temporary! need real 64 bit values for Alpha */
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typedef struct _SyncCounter {
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/* Sync object types */
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#define SYNC_COUNTER 0
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typedef struct _SyncObject {
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ClientPtr client; /* Owning client. 0 for system counters */
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XSyncCounter id; /* resource ID */
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CARD64 value; /* counter value */
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struct _SyncTriggerList *pTriglist; /* list of triggers */
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Bool beingDestroyed; /* in process of going away */
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XID id; /* resource ID */
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unsigned char type; /* SYNC_* */
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Bool beingDestroyed; /* in process of going away */
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} SyncObject;
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typedef struct _SyncCounter {
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SyncObject sync; /* Common sync object data */
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CARD64 value; /* counter value */
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struct _SysCounterInfo *pSysCounterInfo; /* NULL if not a system counter */
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} SyncCounter;
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