reactos/lib/rossym_new/zwfile.c
Hermès Bélusca-Maïto e1ef078741 Create this branch to work on loading of different Kernel-Debugger DLL providers, and see whether it is possible to move KDBG from ntoskrnl to a new DLL called, say, KDROSDBG.DLL.
The idea then would be to have the following behaviour (when specifying the following options in the kernel command line):

/DEBUGPORT=COMi --> load KDCOM.DLL and use COMi port (i == 1,2,3,4) if possible.
/DEBUGPORT=FOO  --> load KDFOO.DLL (useful for KDUSB.DLL, KD1394.DLL, KDBAZIS.DLL for VirtualKD, etc...)
/DEBUGPORT=ROSDBG:[COMi|SCREEN|FILE|GDB|...] --> load KDROSDBG.DLL which contains the ROS kernel debugger, and use COMi or SCREEN or... as output port.

svn path=/branches/kd++/; revision=58883
2013-04-28 13:26:45 +00:00

49 lines
1.3 KiB
C

/*
* COPYRIGHT: See COPYING in the top level directory
* PROJECT: ReactOS kernel
* FILE: lib/rossym/zwfile.c
* PURPOSE: File I/O using native functions
*
* PROGRAMMERS: Ge van Geldorp (gvg@reactos.com)
*/
#include <precomp.h>
NTSTATUS RosSymStatus;
BOOLEAN
RosSymZwReadFile(PVOID FileContext, PVOID Buffer, ULONG Size)
{
//NTSTATUS Status;
IO_STATUS_BLOCK IoStatusBlock;
RosSymStatus = ZwReadFile(*((HANDLE *) FileContext),
0, 0, 0,
&IoStatusBlock,
Buffer,
Size,
0, 0);
return NT_SUCCESS(RosSymStatus) && IoStatusBlock.Information == Size;
}
BOOLEAN
RosSymZwSeekFile(PVOID FileContext, ULONG_PTR Position)
{
//NTSTATUS Status;
IO_STATUS_BLOCK IoStatusBlock;
FILE_POSITION_INFORMATION NewPosition;
NewPosition.CurrentByteOffset.u.HighPart = 0;
NewPosition.CurrentByteOffset.u.LowPart = Position;
RosSymStatus = ZwSetInformationFile(*((HANDLE *) FileContext),
&IoStatusBlock,
(PVOID) &NewPosition,
sizeof(FILE_POSITION_INFORMATION),
FilePositionInformation);
return NT_SUCCESS(RosSymStatus);
}
/* EOF */