mirror of
https://github.com/reactos/reactos.git
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100 lines
2.5 KiB
C
100 lines
2.5 KiB
C
#ifndef __BUFFRING_H__
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#define __BUFFRING_H__
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#define RX_REQUEST_PREPARED_FOR_HANDLING 0x10000000
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typedef struct _CHANGE_BUFFERING_STATE_REQUEST_
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{
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LIST_ENTRY ListEntry;
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ULONG Flags;
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#if (_WIN32_WINNT < 0x0600)
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PSRV_CALL pSrvCall;
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#endif
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PSRV_OPEN SrvOpen;
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PVOID SrvOpenKey;
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PVOID MRxContext;
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} CHANGE_BUFFERING_STATE_REQUEST, *PCHANGE_BUFFERING_STATE_REQUEST;
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typedef struct _RX_BUFFERING_MANAGER_
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{
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BOOLEAN DispatcherActive;
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BOOLEAN HandlerInactive;
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BOOLEAN LastChanceHandlerActive;
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UCHAR Pad;
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KSPIN_LOCK SpinLock;
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volatile LONG CumulativeNumberOfBufferingChangeRequests;
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LONG NumberOfUnhandledRequests;
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LONG NumberOfUndispatchedRequests;
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volatile LONG NumberOfOutstandingOpens;
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LIST_ENTRY DispatcherList;
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LIST_ENTRY HandlerList;
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LIST_ENTRY LastChanceHandlerList;
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RX_WORK_QUEUE_ITEM DispatcherWorkItem;
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RX_WORK_QUEUE_ITEM HandlerWorkItem;
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RX_WORK_QUEUE_ITEM LastChanceHandlerWorkItem;
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FAST_MUTEX Mutex;
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LIST_ENTRY SrvOpenLists[1];
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} RX_BUFFERING_MANAGER, *PRX_BUFFERING_MANAGER;
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#if (_WIN32_WINNT >= 0x0600)
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#define RxAcquireBufferingManagerMutex(BufMan) ExAcquireFastMutex(&(BufMan)->Mutex)
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#else
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#define RxAcquireBufferingManagerMutex(BufMan) \
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{ \
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if (!ExTryToAcquireFastMutex(&(BufMan)->Mutex)) \
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{ \
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ExAcquireFastMutex(&(BufMan)->Mutex); \
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} \
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}
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#endif
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#define RxReleaseBufferingManagerMutex(BufMan) ExReleaseFastMutex(&(BufMan)->Mutex)
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VOID
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RxpProcessChangeBufferingStateRequests(
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PSRV_CALL SrvCall,
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BOOLEAN UpdateHandlerState);
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VOID
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NTAPI
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RxProcessChangeBufferingStateRequests(
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_In_ PVOID SrvCall);
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VOID
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RxProcessFcbChangeBufferingStateRequest(
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_In_ PFCB Fcb);
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VOID
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RxPurgeChangeBufferingStateRequestsForSrvOpen(
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_In_ PSRV_OPEN SrvOpen);
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VOID
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RxCompleteSrvOpenKeyAssociation(
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_Inout_ PSRV_OPEN SrvOpen);
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VOID
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RxInitiateSrvOpenKeyAssociation(
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_Inout_ PSRV_OPEN SrvOpen);
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NTSTATUS
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RxInitializeBufferingManager(
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_In_ PSRV_CALL SrvCall);
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NTSTATUS
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RxTearDownBufferingManager(
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_In_ PSRV_CALL SrvCall);
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NTSTATUS
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RxFlushFcbInSystemCache(
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_In_ PFCB Fcb,
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_In_ BOOLEAN SynchronizeWithLazyWriter);
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NTSTATUS
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RxPurgeFcbInSystemCache(
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_In_ PFCB Fcb,
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_In_ PLARGE_INTEGER FileOffset OPTIONAL,
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_In_ ULONG Length,
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_In_ BOOLEAN UninitializeCacheMaps,
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_In_ BOOLEAN FlushFile);
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#endif
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