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https://github.com/reactos/reactos.git
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116 lines
2.9 KiB
C
116 lines
2.9 KiB
C
/*
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* COPYRIGHT: See COPYING in the top level directory
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* PROJECT: ReactOS kernel
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* FILE: drivers/filesystems/cdfs/fastio.c
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* PURPOSE: CDROM (ISO 9660) filesystem driver
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* PROGRAMMER: Pierre Schweitzer
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*/
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/* INCLUDES *****************************************************************/
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#include "cdfs.h"
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#define NDEBUG
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#include <debug.h>
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/* FUNCTIONS ****************************************************************/
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BOOLEAN
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NTAPI
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CdfsAcquireForLazyWrite(
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_In_ PVOID Context,
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_In_ BOOLEAN Wait)
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{
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PFCB Fcb = (PFCB)Context;
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ASSERT(Fcb);
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DPRINT("CdfsAcquireForLazyWrite(): Fcb %p\n", Fcb);
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if (!ExAcquireResourceExclusiveLite(&(Fcb->MainResource), Wait))
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{
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DPRINT("CdfsAcquireForLazyWrite(): ExReleaseResourceLite failed.\n");
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return FALSE;
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}
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return TRUE;
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}
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VOID
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NTAPI
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CdfsReleaseFromLazyWrite(
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_In_ PVOID Context)
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{
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PFCB Fcb = (PFCB)Context;
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ASSERT(Fcb);
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DPRINT("CdfsReleaseFromLazyWrite(): Fcb %p\n", Fcb);
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ExReleaseResourceLite(&(Fcb->MainResource));
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}
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BOOLEAN
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NTAPI
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CdfsFastIoCheckIfPossible(
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_In_ PFILE_OBJECT FileObject,
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_In_ PLARGE_INTEGER FileOffset,
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_In_ ULONG Length,
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_In_ BOOLEAN Wait,
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_In_ ULONG LockKey,
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_In_ BOOLEAN CheckForReadOperation,
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_Out_ PIO_STATUS_BLOCK IoStatus,
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_In_ PDEVICE_OBJECT DeviceObject)
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{
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/* Deny FastIo */
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UNREFERENCED_PARAMETER(FileObject);
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UNREFERENCED_PARAMETER(FileOffset);
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UNREFERENCED_PARAMETER(Length);
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UNREFERENCED_PARAMETER(Wait);
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UNREFERENCED_PARAMETER(LockKey);
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UNREFERENCED_PARAMETER(CheckForReadOperation);
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UNREFERENCED_PARAMETER(IoStatus);
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UNREFERENCED_PARAMETER(DeviceObject);
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return FALSE;
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}
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BOOLEAN
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NTAPI
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CdfsFastIoRead(
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_In_ PFILE_OBJECT FileObject,
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_In_ PLARGE_INTEGER FileOffset,
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_In_ ULONG Length,
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_In_ BOOLEAN Wait,
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_In_ ULONG LockKey,
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_Out_ PVOID Buffer,
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_Out_ PIO_STATUS_BLOCK IoStatus,
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_In_ PDEVICE_OBJECT DeviceObject)
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{
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DBG_UNREFERENCED_PARAMETER(FileObject);
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DBG_UNREFERENCED_PARAMETER(FileOffset);
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DBG_UNREFERENCED_PARAMETER(Length);
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DBG_UNREFERENCED_PARAMETER(Wait);
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DBG_UNREFERENCED_PARAMETER(LockKey);
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DBG_UNREFERENCED_PARAMETER(Buffer);
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DBG_UNREFERENCED_PARAMETER(IoStatus);
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DBG_UNREFERENCED_PARAMETER(DeviceObject);
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return FALSE;
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}
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BOOLEAN
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NTAPI
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CdfsFastIoWrite(
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_In_ PFILE_OBJECT FileObject,
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_In_ PLARGE_INTEGER FileOffset,
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_In_ ULONG Length,
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_In_ BOOLEAN Wait,
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_In_ ULONG LockKey,
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_In_ PVOID Buffer,
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_Out_ PIO_STATUS_BLOCK IoStatus,
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_In_ PDEVICE_OBJECT DeviceObject)
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{
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DBG_UNREFERENCED_PARAMETER(FileObject);
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DBG_UNREFERENCED_PARAMETER(FileOffset);
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DBG_UNREFERENCED_PARAMETER(Length);
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DBG_UNREFERENCED_PARAMETER(Wait);
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DBG_UNREFERENCED_PARAMETER(LockKey);
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DBG_UNREFERENCED_PARAMETER(Buffer);
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DBG_UNREFERENCED_PARAMETER(IoStatus);
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DBG_UNREFERENCED_PARAMETER(DeviceObject);
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return FALSE;
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}
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