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Git conversion: Make reactos the root directory, move rosapps, rostests, wallpapers into modules, and delete rossubsys.

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Colin Finck 2017-10-03 07:45:34 +00:00
parent b94e2d8ca0
commit c2c66aff7d
24198 changed files with 0 additions and 37285 deletions
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148
ntoskrnl/include/internal/io_x.h Normal file
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/*
* PROJECT: ReactOS Kernel
* LICENSE: GPL - See COPYING in the top level directory
* FILE: ntoskrnl/include/internal/io_x.h
* PURPOSE: Internal Inlined Functions for the I/O Manager
* PROGRAMMERS: Alex Ionescu (alex.ionescu@reactos.org)
*/
static
__inline
VOID
IopLockFileObject(IN PFILE_OBJECT FileObject)
{
/* Lock the FO and check for contention */
InterlockedIncrement((PLONG)&FileObject->Waiters);
while (InterlockedCompareExchange((PLONG)&FileObject->Busy, TRUE, FALSE) != FALSE)
{
/* FIXME - pause for a little while? */
}
InterlockedDecrement((PLONG)&FileObject->Waiters);
}
static
__inline
VOID
IopUnlockFileObject(IN PFILE_OBJECT FileObject)
{
/* Unlock the FO and wake any waiters up */
InterlockedExchange((PLONG)&FileObject->Busy, FALSE);
if (FileObject->Waiters) KeSetEvent(&FileObject->Lock, 0, FALSE);
}
FORCEINLINE
VOID
IopQueueIrpToThread(IN PIRP Irp)
{
KIRQL OldIrql;
/* Raise to APC Level */
KeRaiseIrql(APC_LEVEL, &OldIrql);
/* Insert it into the list */
InsertHeadList(&Irp->Tail.Overlay.Thread->IrpList, &Irp->ThreadListEntry);
/* Lower irql */
KeLowerIrql(OldIrql);
}
FORCEINLINE
VOID
IopUnQueueIrpFromThread(IN PIRP Irp)
{
/* Remove it from the list and reset it */
if (IsListEmpty(&Irp->ThreadListEntry))
return;
RemoveEntryList(&Irp->ThreadListEntry);
InitializeListHead(&Irp->ThreadListEntry);
}
static
__inline
VOID
IopUpdateOperationCount(IN IOP_TRANSFER_TYPE Type)
{
PLARGE_INTEGER CountToChange;
/* Make sure I/O operations are being counted */
if (IoCountOperations)
{
if (Type == IopReadTransfer)
{
/* Increase read count */
IoReadOperationCount++;
CountToChange = &PsGetCurrentProcess()->ReadOperationCount;
}
else if (Type == IopWriteTransfer)
{
/* Increase write count */
IoWriteOperationCount++;
CountToChange = &PsGetCurrentProcess()->WriteOperationCount;
}
else
{
/* Increase other count */
IoOtherOperationCount++;
CountToChange = &PsGetCurrentProcess()->OtherOperationCount;
}
/* Increase the process-wide count */
ExInterlockedAddLargeStatistic(CountToChange, 1);
}
}
static
__inline
VOID
IopUpdateTransferCount(IN IOP_TRANSFER_TYPE Type, IN ULONG TransferCount)
{
PLARGE_INTEGER CountToChange;
PLARGE_INTEGER TransferToChange;
/* Make sure I/O operations are being counted */
if (IoCountOperations)
{
if (Type == IopReadTransfer)
{
/* Increase read count */
CountToChange = &PsGetCurrentProcess()->ReadTransferCount;
TransferToChange = &IoReadTransferCount;
}
else if (Type == IopWriteTransfer)
{
/* Increase write count */
CountToChange = &PsGetCurrentProcess()->WriteTransferCount;
TransferToChange = &IoWriteTransferCount;
}
else
{
/* Increase other count */
CountToChange = &PsGetCurrentProcess()->OtherTransferCount;
TransferToChange = &IoOtherTransferCount;
}
/* Increase the process-wide count */
ExInterlockedAddLargeStatistic(CountToChange, TransferCount);
/* Increase global count */
ExInterlockedAddLargeStatistic(TransferToChange, TransferCount);
}
}
static
__inline
BOOLEAN
IopValidateOpenPacket(IN POPEN_PACKET OpenPacket)
{
/* Validate the packet */
if (!(OpenPacket) ||
(OpenPacket->Type != IO_TYPE_OPEN_PACKET) ||
(OpenPacket->Size != sizeof(OPEN_PACKET)))
{
/* Fail */
return FALSE;
}
/* Good packet */
return TRUE;
}