mirror of
https://github.com/reactos/reactos.git
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317 lines
6.4 KiB
C
317 lines
6.4 KiB
C
#pragma once
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typedef struct _PF_SCENARIO_ID
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{
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WCHAR ScenName[30];
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ULONG HashId;
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} PF_SCENARIO_ID, *PPF_SCENARIO_ID;
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typedef struct _PF_LOG_ENTRY
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{
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ULONG FileOffset:30;
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ULONG Type:2;
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union
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{
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ULONG FileKey;
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ULONG FileSequenceNumber;
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};
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} PF_LOG_ENTRY, *PPF_LOG_ENTRY;
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typedef struct _PFSN_LOG_ENTRIES
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{
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LIST_ENTRY TraceBuffersLink;
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LONG NumEntries;
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LONG MaxEntries;
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PF_LOG_ENTRY Entries[ANYSIZE_ARRAY];
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} PFSN_LOG_ENTRIES, *PPFSN_LOG_ENTRIES;
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typedef struct _PF_SECTION_INFO
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{
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ULONG FileKey;
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ULONG FileSequenceNumber;
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ULONG FileIdLow;
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ULONG FileIdHigh;
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} PF_SECTION_INFO, *PPF_SECTION_INFO;
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typedef struct _PF_TRACE_HEADER
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{
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ULONG Version;
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ULONG MagicNumber;
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ULONG Size;
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PF_SCENARIO_ID ScenarioId;
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ULONG ScenarioType; // PF_SCENARIO_TYPE
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ULONG EventEntryIdxs[8];
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ULONG NumEventEntryIdxs;
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ULONG TraceBufferOffset;
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ULONG NumEntries;
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ULONG SectionInfoOffset;
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ULONG NumSections;
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ULONG FaultsPerPeriod[10];
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LARGE_INTEGER LaunchTime;
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ULONGLONG Reserved[5];
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} PF_TRACE_HEADER, *PPF_TRACE_HEADER;
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typedef struct _PFSN_TRACE_DUMP
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{
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LIST_ENTRY CompletedTracesLink;
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PF_TRACE_HEADER Trace;
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} PFSN_TRACE_DUMP, *PPFSN_TRACE_DUMP;
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typedef struct _PFSN_TRACE_HEADER
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{
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ULONG Magic;
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LIST_ENTRY ActiveTracesLink;
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PF_SCENARIO_ID ScenarioId;
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ULONG ScenarioType; // PF_SCENARIO_TYPE
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ULONG EventEntryIdxs[8];
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ULONG NumEventEntryIdxs;
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PPFSN_LOG_ENTRIES CurrentTraceBuffer;
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LIST_ENTRY TraceBuffersList;
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ULONG NumTraceBuffers;
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KSPIN_LOCK TraceBufferSpinLock;
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KTIMER TraceTimer;
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LARGE_INTEGER TraceTimerPeriod;
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KDPC TraceTimerDpc;
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KSPIN_LOCK TraceTimerSpinLock;
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ULONG FaultsPerPeriod[10];
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LONG LastNumFaults;
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LONG CurPeriod;
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LONG NumFaults;
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LONG MaxFaults;
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PEPROCESS Process;
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EX_RUNDOWN_REF RefCount;
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WORK_QUEUE_ITEM EndTraceWorkItem;
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LONG EndTraceCalled;
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PPFSN_TRACE_DUMP TraceDump;
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NTSTATUS TraceDumpStatus;
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LARGE_INTEGER LaunchTime;
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PPF_SECTION_INFO SectionInfo;
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ULONG SectionInfoCount;
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} PFSN_TRACE_HEADER, *PPFSN_TRACE_HEADER;
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typedef struct _PFSN_PREFETCHER_GLOBALS
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{
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LIST_ENTRY ActiveTraces;
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KSPIN_LOCK ActiveTracesLock;
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PPFSN_TRACE_HEADER SystemWideTrace;
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LIST_ENTRY CompletedTraces;
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FAST_MUTEX CompletedTracesLock;
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LONG NumCompletedTraces;
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PKEVENT CompletedTracesEvent;
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LONG ActivePrefetches;
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} PFSN_PREFETCHER_GLOBALS, *PPFSN_PREFETCHER_GLOBALS;
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typedef struct _BCB
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{
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LIST_ENTRY BcbSegmentListHead;
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LIST_ENTRY BcbRemoveListEntry;
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BOOLEAN RemoveOnClose;
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ULONG TimeStamp;
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PFILE_OBJECT FileObject;
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ULONG CacheSegmentSize;
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LARGE_INTEGER AllocationSize;
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LARGE_INTEGER FileSize;
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PCACHE_MANAGER_CALLBACKS Callbacks;
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PVOID LazyWriteContext;
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KSPIN_LOCK BcbLock;
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ULONG RefCount;
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#if DBG
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BOOLEAN Trace; /* enable extra trace output for this BCB and it's cache segments */
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#endif
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} BCB, *PBCB;
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typedef struct _CACHE_SEGMENT
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{
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/* Base address of the region where the cache segment data is mapped. */
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PVOID BaseAddress;
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/*
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* Memory area representing the region where the cache segment data is
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* mapped.
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*/
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struct _MEMORY_AREA* MemoryArea;
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/* Are the contents of the cache segment data valid. */
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BOOLEAN Valid;
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/* Are the contents of the cache segment data newer than those on disk. */
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BOOLEAN Dirty;
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/* Page out in progress */
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BOOLEAN PageOut;
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ULONG MappedCount;
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/* Entry in the list of segments for this BCB. */
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LIST_ENTRY BcbSegmentListEntry;
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/* Entry in the list of segments which are dirty. */
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LIST_ENTRY DirtySegmentListEntry;
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/* Entry in the list of segments. */
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LIST_ENTRY CacheSegmentListEntry;
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LIST_ENTRY CacheSegmentLRUListEntry;
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/* Offset in the file which this cache segment maps. */
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ULONG FileOffset;
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/* Lock. */
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EX_PUSH_LOCK Lock;
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/* Number of references. */
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ULONG ReferenceCount;
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/* Pointer to the BCB for the file which this cache segment maps data for. */
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PBCB Bcb;
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/* Pointer to the next cache segment in a chain. */
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struct _CACHE_SEGMENT* NextInChain;
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} CACHE_SEGMENT, *PCACHE_SEGMENT;
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typedef struct _INTERNAL_BCB
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{
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PUBLIC_BCB PFCB;
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PCACHE_SEGMENT CacheSegment;
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BOOLEAN Dirty;
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CSHORT RefCount; /* (At offset 0x34 on WinNT4) */
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} INTERNAL_BCB, *PINTERNAL_BCB;
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VOID
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NTAPI
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CcPfInitializePrefetcher(
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VOID
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);
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VOID
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NTAPI
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CcMdlReadComplete2(
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IN PMDL MemoryDescriptorList,
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IN PFILE_OBJECT FileObject
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);
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VOID
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NTAPI
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CcMdlWriteComplete2(
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IN PFILE_OBJECT FileObject,
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IN PLARGE_INTEGER FileOffset,
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IN PMDL MdlChain
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);
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NTSTATUS
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NTAPI
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CcRosFlushCacheSegment(PCACHE_SEGMENT CacheSegment);
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NTSTATUS
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NTAPI
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CcRosGetCacheSegment(
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PBCB Bcb,
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ULONG FileOffset,
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PULONG BaseOffset,
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PVOID *BaseAddress,
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PBOOLEAN UptoDate,
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PCACHE_SEGMENT *CacheSeg
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);
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VOID
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NTAPI
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CcInitView(VOID);
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NTSTATUS
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NTAPI
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CcRosFreeCacheSegment(
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PBCB,
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PCACHE_SEGMENT
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);
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NTSTATUS
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NTAPI
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ReadCacheSegment(PCACHE_SEGMENT CacheSeg);
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NTSTATUS
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NTAPI
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WriteCacheSegment(PCACHE_SEGMENT CacheSeg);
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BOOLEAN
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NTAPI
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CcInitializeCacheManager(VOID);
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NTSTATUS
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NTAPI
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CcRosUnmapCacheSegment(
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PBCB Bcb,
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ULONG FileOffset,
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BOOLEAN NowDirty
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);
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PCACHE_SEGMENT
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NTAPI
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CcRosLookupCacheSegment(
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PBCB Bcb,
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ULONG FileOffset
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);
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NTSTATUS
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NTAPI
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CcRosGetCacheSegmentChain(
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PBCB Bcb,
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ULONG FileOffset,
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ULONG Length,
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PCACHE_SEGMENT* CacheSeg
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);
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VOID
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NTAPI
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CcInitCacheZeroPage(VOID);
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NTSTATUS
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NTAPI
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CcRosMarkDirtyCacheSegment(
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PBCB Bcb,
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ULONG FileOffset
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);
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NTSTATUS
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NTAPI
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CcRosFlushDirtyPages(
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ULONG Target,
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PULONG Count
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);
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VOID
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NTAPI
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CcRosDereferenceCache(PFILE_OBJECT FileObject);
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VOID
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NTAPI
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CcRosReferenceCache(PFILE_OBJECT FileObject);
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VOID
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NTAPI
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CcRosSetRemoveOnClose(PSECTION_OBJECT_POINTERS SectionObjectPointer);
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NTSTATUS
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NTAPI
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CcRosReleaseCacheSegment(
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BCB* Bcb,
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CACHE_SEGMENT *CacheSeg,
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BOOLEAN Valid,
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BOOLEAN Dirty,
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BOOLEAN Mapped
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);
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NTSTATUS
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NTAPI
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CcRosRequestCacheSegment(
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BCB *Bcb,
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ULONG FileOffset,
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PVOID* BaseAddress,
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PBOOLEAN UptoDate,
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CACHE_SEGMENT **CacheSeg
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);
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NTSTATUS
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NTAPI
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CcRosInitializeFileCache(
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PFILE_OBJECT FileObject,
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ULONG CacheSegmentSize,
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PCACHE_MANAGER_CALLBACKS CallBacks,
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PVOID LazyWriterContext
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);
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NTSTATUS
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NTAPI
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CcRosReleaseFileCache(
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PFILE_OBJECT FileObject
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);
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NTSTATUS
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NTAPI
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CcTryToInitializeFileCache(PFILE_OBJECT FileObject);
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