Dibyamartanda Samanta
05cd85be9b
* Implemented CcMapDataCommon Rest of the API will be implemented Soon.
89 lines
1.6 KiB
C++
89 lines
1.6 KiB
C++
/*
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* PROJECT: Alcyone System Kernel
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* LICENSE: BSD Clause 3
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* PURPOSE: Cache Controller:: Lazy Writer
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* NT KERNEL: 5.11.9360
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* COPYRIGHT: 2023-2029 Dibymartanda Samanta <>
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*/
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#include <ntoskrnl.h>
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#define NTDEBUG
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#include <debug.h>
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#include "ccinternal.hpp"
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extern "C"
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/*Internal Function*/
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BOOLEAN
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NTAPI
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CcPinFileData(
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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 IsNoWrite,
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_In_ BOOLEAN Flags,
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_In_ ULONG PinFlags,
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_Out_ PCC_BCB* Bcb,
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_Out_ PVOID* Buffer,
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_Out_ LARGE_INTEGER* BeyondLastByte)
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{
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// Unimplemented
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}
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BOOLEAN
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NTAPI
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CcMapDataCommon(
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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_ ULONG Flags,
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_Out_ PVOID *Bcb,
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_Out_ PVOID *Buffer
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)
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{
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if (Flags & FILE_PIN_SEQUENTIAL_READ)
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InterlockedIncrement(&CcSequentialReadCount);
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else
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InterlockedIncrement(&CcRandomReadCount);
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KeGetCurrentThread()->WaitIrql = PASSIVE_LEVEL;
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if (Flags & FILE_PIN_SEQUENTIAL_READ)
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{
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*Buffer = CcGetVirtualAddress(SharedMap, *FileOffset, (PVACB *)&Bcb, &ReceivedLength);
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return TRUE;
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}
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else
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{
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LARGE_INTEGER BeyondLastByte;
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if (CcPinFileData(FileObject, FileOffset, Length, TRUE, 0, Flags, Bcb, Buffer, &BeyondLastByte))
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{
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return TRUE;
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}
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else
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{
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InterlockedIncrement(&CCFailedPinReadCount);
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return FALSE;
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}
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}
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}
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}
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VOID
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NTAPI
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CcUnpinFileDataEx(
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_In_ PCC_BCB Bcb,
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_In_ BOOLEAN WriteStatus,
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_In_ ULONG Type)
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{
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// Unimplementd
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}
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