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Reworked code for handling of asynchonous i/o requests.

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svn path=/trunk/; revision=2347
This commit is contained in:
Hartmut Birr 2001-11-02 22:57:14 +00:00
parent c2c9804f47
commit 547896ce6f
1 changed files with 45 additions and 29 deletions
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62
reactos/drivers/fs/vfat/vfat.h
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@ -1,4 +1,4 @@
/* $Id: vfat.h,v 1.36 2001/10/10 22:20:48 hbirr Exp $ */
/* $Id: vfat.h,v 1.37 2001/11/02 22:57:14 hbirr Exp $ */
#include <ddk/ntifs.h>
@ -110,11 +110,14 @@ typedef struct
int FATEntriesPerSector, FATUnit;
ULONG BytesPerCluster;
ULONG FatType;
ULONG LastAvailableCluster;
ULONG NumberOfClusters;
} DEVICE_EXTENSION, *PDEVICE_EXTENSION, VCB, *PVCB;
#define FCB_CACHE_INITIALIZED 0x0001
#define FCB_DELETE_PENDING 0x0002
#define FCB_IS_FAT 0x0004
#define FCB_IS_PAGE_FILE 0x0008
typedef struct _VFATFCB
{
@ -132,6 +135,8 @@ typedef struct _VFATFCB
ULONG Flags;
PFILE_OBJECT FileObject;
ULONG dirIndex;
ERESOURCE PagingIoResource;
ERESOURCE MainResource;
} VFATFCB, *PVFATFCB;
typedef struct _VFATCCB
@ -170,33 +175,39 @@ typedef struct __DOSDATE
WORD Year:5;
} DOSDATE, *PDOSDATE;
#define IRPCONTEXT_CANWAIT 0x0001
typedef struct
{
PIRP Irp;
PDEVICE_OBJECT DeviceObject;
PDEVICE_EXTENSION DeviceExt;
ULONG Flags;
WORK_QUEUE_ITEM WorkQueueItem;
PIO_STACK_LOCATION Stack;
UCHAR MajorFunction;
UCHAR MinorFunction;
PFILE_OBJECT FileObject;
}
VFAT_IRP_CONTEXT, *PVFAT_IRP_CONTEXT;
/* functions called by i/o manager : */
NTSTATUS STDCALL
DriverEntry(PDRIVER_OBJECT _DriverObject,PUNICODE_STRING RegistryPath);
NTSTATUS STDCALL
VfatDirectoryControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatRead(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatWrite(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatCreate(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatClose(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatFileSystemControl(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatQueryInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatSetInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatCleanup (PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS VfatDirectoryControl (PVFAT_IRP_CONTEXT);
NTSTATUS VfatRead (PVFAT_IRP_CONTEXT);
NTSTATUS VfatWrite (PVFAT_IRP_CONTEXT);
NTSTATUS VfatCreate (PVFAT_IRP_CONTEXT);
NTSTATUS VfatClose (PVFAT_IRP_CONTEXT);
NTSTATUS VfatFileSystemControl (PVFAT_IRP_CONTEXT);
NTSTATUS VfatQueryInformation (PVFAT_IRP_CONTEXT);
NTSTATUS VfatSetInformation (PVFAT_IRP_CONTEXT);
NTSTATUS VfatCleanup (PVFAT_IRP_CONTEXT);
NTSTATUS STDCALL
VfatShutdown(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatQueryVolumeInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS STDCALL
VfatSetVolumeInformation(PDEVICE_OBJECT DeviceObject, PIRP Irp);
NTSTATUS VfatQueryVolumeInformation (PVFAT_IRP_CONTEXT);
NTSTATUS VfatSetVolumeInformation (PVFAT_IRP_CONTEXT);
NTSTATUS
@ -385,4 +396,9 @@ NTSTATUS vfatMakeFCBFromDirEntry(PVCB vcb,
NTSTATUS vfatExtendSpace (PDEVICE_EXTENSION pDeviceExt, PFILE_OBJECT pFileObject, ULONG NewSize);
/* ------------------------------------------------------------- misc.c */
NTSTATUS VfatQueueRequest(PVFAT_IRP_CONTEXT IrpContext);
PVFAT_IRP_CONTEXT VfatAllocateIrpContext(PDEVICE_OBJECT DeviceObject, PIRP Irp);
VOID VfatFreeIrpContext(PVFAT_IRP_CONTEXT IrpContext);
NTSTATUS STDCALL VfatBuildRequest (PDEVICE_OBJECT DeviceObject, PIRP Irp);