Intravision/reactos
1
0
Fork 0
mirror of https://github.com/reactos/reactos.git synced 2025-01-03 21:09:19 +00:00
Code Issues Projects Releases Packages Wiki Activity

Implement EngFileIoControl and EngFileWrite

Browse source 
svn path=/trunk/; revision=42596
This commit is contained in:
Timo Kreuzer 2009-08-10 15:09:14 +00:00
parent 0b1191a6d8
commit 15e8102344
2 changed files with 133 additions and 25 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

135
reactos/subsystems/win32/win32k/eng/device.c
View file

@ -4,8 +4,7 @@
* PURPOSE: GDI Driver Device Functions
* FILE: subsys/win32k/eng/device.c
* PROGRAMER: Jason Filby
* REVISION HISTORY:
* 3/7/1999: Created
* Timo Kreuzer
*/
#include <w32k.h>
@ -13,6 +12,138 @@
#define NDEBUG
#include <debug.h>
static
DWORD
EngpFileIoRequest(
PFILE_OBJECT pFileObject,
ULONG ulMajorFunction,
LPVOID lpBuffer,
DWORD nBufferSize,
ULONGLONG ullStartOffset,
OUT LPDWORD lpInformation)
{
PDEVICE_OBJECT pDeviceObject;
KEVENT Event;
PIRP pIrp;
IO_STATUS_BLOCK Iosb;
NTSTATUS Status;
LARGE_INTEGER liStartOffset;
/* Get corresponding device object */
pDeviceObject = IoGetRelatedDeviceObject(pFileObject);
if (!pDeviceObject)
{
return STATUS_INVALID_PARAMETER;
}
/* Initialize an event */
KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
/* Build IPR */
liStartOffset.QuadPart = ullStartOffset;
pIrp = IoBuildSynchronousFsdRequest(ulMajorFunction,
pDeviceObject,
lpBuffer,
nBufferSize,
&liStartOffset,
&Event,
&Iosb);
if (!pIrp)
{
return FALSE;
}
/* Call the driver */
Status = IoCallDriver(pDeviceObject, pIrp);
/* Wait if neccessary */
if (STATUS_PENDING == Status)
{
KeWaitForSingleObject(&Event, Executive, KernelMode, TRUE, 0);
Status = Iosb.Status;
}
/* Return information to the caller about the operation. */
*lpInformation = Iosb.Information;
return NT_SUCCESS(Status);
}
VOID
APIENTRY
EngFileWrite(
IN PFILE_OBJECT pFileObject,
IN PVOID lpBuffer,
IN SIZE_T nLength,
IN PSIZE_T lpBytesWritten)
{
EngpFileIoRequest(pFileObject,
IRP_MJ_WRITE,
lpBuffer,
nLength,
0,
lpBytesWritten);
}
NTSTATUS
APIENTRY
EngFileIoControl(
IN PFILE_OBJECT pFileObject,
IN DWORD dwIoControlCode,
IN PVOID lpInBuffer,
IN SIZE_T nInBufferSize,
OUT PVOID lpOutBuffer,
IN SIZE_T nOutBufferSize,
OUT LPDWORD lpInformation)
{
PDEVICE_OBJECT pDeviceObject;
KEVENT Event;
PIRP pIrp;
IO_STATUS_BLOCK Iosb;
NTSTATUS Status;
/* Get corresponding device object */
pDeviceObject = IoGetRelatedDeviceObject(pFileObject);
if (!pDeviceObject)
{
return STATUS_INVALID_PARAMETER;
}
/* Initialize an event */
KeInitializeEvent(&Event, SynchronizationEvent, FALSE);
/* Build IO control IPR */
pIrp = IoBuildDeviceIoControlRequest(dwIoControlCode,
pDeviceObject,
lpInBuffer,
nInBufferSize,
lpOutBuffer,
nOutBufferSize,
FALSE,
&Event,
&Iosb);
if (!pIrp)
{
return STATUS_INSUFFICIENT_RESOURCES;
}
/* Call the driver */
Status = IoCallDriver(pDeviceObject, pIrp);
/* Wait if neccessary */
if (Status == STATUS_PENDING)
{
KeWaitForSingleObject(&Event, Executive, KernelMode, TRUE, 0);
Status = Iosb.Status;
}
/* Return information to the caller about the operation. */
*lpInformation = Iosb.Information;
/* This function returns NTSTATUS */
return Status;
}
/*
* @implemented
*/

23
reactos/subsystems/win32/win32k/stubs/stubs.c
View file

@ -2796,29 +2796,6 @@ EngAllocSectionMem(IN PVOID SectionObject,
return NULL;
}
NTSTATUS
APIENTRY
EngFileIoControl(IN PFILE_OBJECT FileObject,
IN ULONG IoControlCode,
IN PVOID InputBuffer,
IN SIZE_T InputBufferLength,
OUT PVOID OutputBuffer,
IN SIZE_T OutputBufferLength,
OUT PULONG Information)
{
UNIMPLEMENTED;
return STATUS_NOT_IMPLEMENTED;
}
VOID
APIENTRY
EngFileWrite(IN PFILE_OBJECT FileObject,
IN PVOID Buffer,
IN SIZE_T Length,
IN PSIZE_T BytesWritten)
{
UNIMPLEMENTED;
}
BOOLEAN
APIENTRY