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https://github.com/reactos/reactos.git
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fixed timers and a wait functions, and a few bugs
svn path=/trunk/; revision=818
This commit is contained in:
Phillip Susi
parent
d4c340c696
commit
d0c1e25256
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@ -1,4 +1,4 @@
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/* $Id: timer.c,v 1.21 1999/11/24 11:51:50 dwelch Exp $
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/* $Id: timer.c,v 1.22 1999/12/04 07:40:53 phreak Exp $
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*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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@ -7,6 +7,7 @@
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* PROGRAMMER: David Welch (welch@mcmail.com)
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* UPDATE HISTORY:
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* 28/05/98: Created
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* 12/3/99: Phillip Susi: enabled the timers, fixed spin lock
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*/
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/* NOTES ******************************************************************/
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@ -74,6 +75,8 @@ volatile ULONGLONG KiTimerTicks;
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static LIST_ENTRY TimerListHead;
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static KSPIN_LOCK TimerListLock;
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/* must raise IRQL to HIGH_LEVEL and grab spin lock there, to sync with ISR */
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extern ULONG PiNrRunnableThreads;
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#define MICROSECONDS_PER_TICK (54945)
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@ -239,7 +242,8 @@ BOOLEAN KeSetTimerEx(PKTIMER Timer, LARGE_INTEGER DueTime, LONG Period,
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DPRINT("KeSetTimerEx(Timer %x)\n",Timer);
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KeAcquireSpinLock(&TimerListLock,&oldlvl);
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KeRaiseIrql( HIGH_LEVEL, &oldlvl );
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KeAcquireSpinLockAtDpcLevel(&TimerListLock);
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Timer->Dpc = Dpc;
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if (DueTime.QuadPart < 0)
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@ -276,7 +280,8 @@ BOOLEAN KeCancelTimer(PKTIMER Timer)
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DPRINT("KeCancelTimer(Timer %x)\n",Timer);
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KeAcquireSpinLock(&TimerListLock, &oldlvl);
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KeRaiseIrql( HIGH_LEVEL, &oldlvl );
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KeAcquireSpinLockAtDpcLevel( &TimerListLock );
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if (Timer->TimerListEntry.Flink == NULL)
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{
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@ -381,13 +386,8 @@ VOID KeExpireTimers(VOID)
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PLIST_ENTRY current_entry = NULL;
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PKTIMER current = NULL;
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KIRQL oldlvl;
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// DPRINT("KeExpireTimers()\n");
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if (TimerInitDone == FALSE)
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{
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return;
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}
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DPRINT("KeExpireTimers()\n");
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current_entry = TimerListHead.Flink;
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@ -396,7 +396,8 @@ VOID KeExpireTimers(VOID)
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// DPRINT("current_entry->Flink %x\n",current_entry->Flink);
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// DPRINT("current_entry->Flink->Flink %x\n",current_entry->Flink->Flink);
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KeAcquireSpinLock(&TimerListLock, &oldlvl);
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KeRaiseIrql( HIGH_LEVEL, &oldlvl );
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KeAcquireSpinLockAtDpcLevel(&TimerListLock);
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while (current_entry!=(&TimerListHead))
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{
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@ -410,7 +411,7 @@ VOID KeExpireTimers(VOID)
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}
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}
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KeReleaseSpinLock(&TimerListLock,oldlvl);
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KeReleaseSpinLock( &TimerListLock, oldlvl );
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// DPRINT("Finished KeExpireTimers()\n");
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}
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@ -429,6 +430,10 @@ VOID KiTimerInterrupt(VOID)
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extern unsigned int EiUsedNonPagedPool;
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extern ULONG MiNrFreePages;
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if (TimerInitDone == FALSE)
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{
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return;
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}
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/*
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* Increment the number of timers ticks
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*/
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@ -456,9 +461,9 @@ VOID KiTimerInterrupt(VOID)
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// sprintf(str,"%.8u %.8u",(unsigned int)EiNrUsedBlocks,
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// (unsigned int)EiFreeNonPagedPool);
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// sprintf(str,"%.8u %.8u",EiFreeNonPagedPool,EiUsedNonPagedPool);
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// sprintf(str,"%.8u %.8u",PiNrRunnableThreads,KiTimerTicks);
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sprintf(str,"%.8u %.8u", (unsigned int)PiNrRunnableThreads,
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(unsigned int)MiNrFreePages);
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sprintf(str,"%.8u %.8u",(unsigned int)PiNrRunnableThreads,(unsigned int)KiTimerTicks);
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// sprintf(str,"%.8u %.8u", (unsigned int)PiNrRunnableThreads,
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// (unsigned int)MiNrFreePages);
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for (i=0;i<17;i++)
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{
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*vidmem=str[i];
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@ -466,6 +471,7 @@ VOID KiTimerInterrupt(VOID)
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*vidmem=0x7;
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vidmem++;
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}
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KeExpireTimers();
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}
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@ -6,6 +6,8 @@
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* PROGRAMMER: David Welch (welch@mcmail.com)
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* REVISION HISTORY:
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* 21/07/98: Created
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* 12/1/99: Phillip Susi: Fixed wake code in KeDispatcherObjectWake
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* so that things like KeWaitForXXX() return the correct value
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*/
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/* NOTES ********************************************************************
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@ -134,14 +136,21 @@ static BOOLEAN KeDispatcherObjectWakeAll(DISPATCHER_HEADER* hdr)
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while (!IsListEmpty(&(hdr->WaitListHead)))
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{
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current_entry = RemoveHeadList(&hdr->WaitListHead);
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current = CONTAINING_RECORD(current_entry,KWAIT_BLOCK,
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NTSTATUS Status = STATUS_WAIT_0;
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current_entry = RemoveHeadList(&hdr->WaitListHead);
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current = CONTAINING_RECORD(current_entry,KWAIT_BLOCK,
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WaitListEntry);
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DPRINT("Waking %x\n",current->Thread);
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if (current->WaitType == WaitAny)
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{
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DPRINT("WaitAny: Remove all wait blocks.\n");
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//count the number of the wait block that is waking us, and set that as the wake status
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for( PrevBlock = current->Thread->WaitBlockList; PrevBlock; ++Status, PrevBlock = PrevBlock->NextWaitBlock )
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if( PrevBlock == current )
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break;
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if( PrevBlock == 0 )
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DbgPrint( "WaitOne: Wait Block not in list! Wait result will be corrupt\n" );
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current->Thread->WaitBlockList = NULL;
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}
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else
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@ -180,7 +189,7 @@ static BOOLEAN KeDispatcherObjectWakeAll(DISPATCHER_HEADER* hdr)
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KiSideEffectsBeforeWake(hdr);
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PsResumeThread(CONTAINING_RECORD(current->Thread,ETHREAD,Tcb),
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NULL);
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&Status);
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};
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return(TRUE);
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}
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@ -190,6 +199,7 @@ static BOOLEAN KeDispatcherObjectWakeOne(DISPATCHER_HEADER* hdr)
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PKWAIT_BLOCK current;
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PLIST_ENTRY current_entry;
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PKWAIT_BLOCK PrevBlock;
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NTSTATUS Status = STATUS_WAIT_0;
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DPRINT("KeDispatcherObjectWakeOn(hdr %x)\n",hdr);
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DPRINT("hdr->WaitListHead.Flink %x hdr->WaitListHead.Blink %x\n",
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@ -207,7 +217,13 @@ static BOOLEAN KeDispatcherObjectWakeOne(DISPATCHER_HEADER* hdr)
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if (current->WaitType == WaitAny)
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{
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DPRINT("WaitAny: Remove all wait blocks.\n");
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current->Thread->WaitBlockList = NULL;
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//count the number of the wait block that is waking us, and set that as the wake status
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for( PrevBlock = current->Thread->WaitBlockList; PrevBlock; ++Status, PrevBlock = PrevBlock->NextWaitBlock )
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if( PrevBlock == current )
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break;
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if( PrevBlock == 0 )
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DbgPrint( "WaitOne: Wait Block not in list! Wait result will be corrupt\n" );
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current->Thread->WaitBlockList = NULL;
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}
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else
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{
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@ -246,7 +262,7 @@ static BOOLEAN KeDispatcherObjectWakeOne(DISPATCHER_HEADER* hdr)
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KiSideEffectsBeforeWake(hdr);
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PsResumeThread(CONTAINING_RECORD(current->Thread,ETHREAD,Tcb),
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NULL);
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&Status);
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return(TRUE);
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}
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@ -363,9 +379,9 @@ NTSTATUS KeWaitForSingleObject(PVOID Object,
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blk.WaitKey = 0;
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blk.WaitType = WaitAny;
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blk.NextWaitBlock = NULL;
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DPRINT("hdr->WaitListHead.Flink %x hdr->WaitListHead.Blink %x blk.WaitListEntry = %x\n",
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hdr->WaitListHead.Flink,hdr->WaitListHead.Blink, blk.WaitListEntry );
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InsertTailList(&(hdr->WaitListHead),&(blk.WaitListEntry));
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// DPRINT("hdr->WaitListHead.Flink %x hdr->WaitListHead.Blink %x\n",
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// hdr->WaitListHead.Flink,hdr->WaitListHead.Blink);
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KeReleaseDispatcherDatabaseLock(FALSE);
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DPRINT("Waiting at %s:%d with irql %d\n", __FILE__, __LINE__,
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KeGetCurrentIrql());
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@ -387,9 +403,8 @@ NTSTATUS KeWaitForSingleObject(PVOID Object,
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DPRINT("Current thread is alertable and APCs are pending\n");
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return(STATUS_USER_APC);
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}
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DPRINT("Returning from KeWaitForSingleObject()\n");
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return(Status);
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return Status;
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}
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@ -513,16 +528,6 @@ NTSTATUS KeWaitForMultipleObjects(ULONG Count,
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}
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DPRINT("Returning from KeWaitForMultipleObjects()\n");
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if (WaitType == WaitAny)
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{
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for (i = 0; i < Count; i++)
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{
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if (((DISPATCHER_HEADER *)Object[i])->SignalState)
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return(STATUS_WAIT_0+i);
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}
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}
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return(Status);
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}
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