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ntoskrnl.exe: Implement ExReleaseResourceForThreadLite(). 

Signed-off-by: Zebediah Figura <z.figura12@gmail.com>
Signed-off-by: Alexandre Julliard <julliard@winehq.org>
This commit is contained in:
Zebediah Figura 2019-04-08 22:30:15 -05:00 committed by Alexandre Julliard
parent b13a00f82b
commit 9dfa9f6b26
3 changed files with 61 additions and 8 deletions
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8
dlls/ntoskrnl.exe/ntoskrnl.c
View File

@ -3364,14 +3364,6 @@ NTSTATUS WINAPI ExDeleteResourceLite(PERESOURCE resource)
return STATUS_NOT_IMPLEMENTED;
}
/***********************************************************************
* ExReleaseResourceForThreadLite (NTOSKRNL.EXE.@)
*/
void WINAPI ExReleaseResourceForThreadLite( PERESOURCE resource, ERESOURCE_THREAD tid )
{
FIXME( "stub: %p %lu\n", resource, tid );
}
/***********************************************************************
* KeEnterCriticalRegion (NTOSKRNL.EXE.@)
*/

60
dlls/ntoskrnl.exe/sync.c
View File

@ -1006,3 +1006,63 @@ BOOLEAN WINAPI ExAcquireSharedWaitForExclusive( ERESOURCE *resource, BOOLEAN wai
return TRUE;
}
/***********************************************************************
* ExReleaseResourceForThreadLite (NTOSKRNL.EXE.@)
*/
void WINAPI ExReleaseResourceForThreadLite( ERESOURCE *resource, ERESOURCE_THREAD thread )
{
OWNER_ENTRY *entry;
KIRQL irql;
TRACE("resource %p, thread %#lx.\n", resource, thread);
KeAcquireSpinLock( &resource->SpinLock, &irql );
if (resource->Flag & ResourceOwnedExclusive)
{
if (resource->OwnerEntry.OwnerThread == thread)
{
if (!--resource->ActiveEntries)
{
resource->OwnerEntry.OwnerThread = 0;
resource->Flag &= ~ResourceOwnedExclusive;
}
}
else
{
ERR("Trying to release %p for thread %#lx, but resource is exclusively owned by %#lx.\n",
resource, thread, resource->OwnerEntry.OwnerThread);
return;
}
}
else
{
entry = resource_get_shared_entry( resource, thread );
if (entry->OwnerCount)
{
entry->OwnerCount--;
resource->ActiveEntries--;
}
else
{
ERR("Trying to release %p for thread %#lx, but resource is not owned by that thread.\n", resource, thread);
return;
}
}
if (!resource->ActiveEntries)
{
if (resource->NumberOfExclusiveWaiters)
{
KeSetEvent( resource->ExclusiveWaiters, IO_NO_INCREMENT, FALSE );
}
else if (resource->NumberOfSharedWaiters)
{
KeReleaseSemaphore( resource->SharedWaiters, IO_NO_INCREMENT,
resource->NumberOfSharedWaiters, FALSE );
}
}
KeReleaseSpinLock( &resource->SpinLock, irql );
}

1
include/ddk/wdm.h
View File

@ -1529,6 +1529,7 @@ PSLIST_ENTRY WINAPI ExInterlockedPopEntrySList(PSLIST_HEADER,PKSPIN_LOCK);
PSLIST_ENTRY WINAPI ExInterlockedPushEntrySList(PSLIST_HEADER,PSLIST_ENTRY,PKSPIN_LOCK);
LIST_ENTRY * WINAPI ExInterlockedRemoveHeadList(LIST_ENTRY*,KSPIN_LOCK*);
void WINAPI ExReleaseFastMutexUnsafe(PFAST_MUTEX);
void WINAPI ExReleaseResourceForThreadLite(ERESOURCE*,ERESOURCE_THREAD);
ULONG WINAPI ExSetTimerResolution(ULONG,BOOLEAN);
void WINAPI IoAcquireCancelSpinLock(KIRQL*);