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120 lines
3.3 KiB
C
120 lines
3.3 KiB
C
#ifndef _RXPREFIX_
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#define _RXPREFIX_
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typedef struct _RX_CONNECTION_ID
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{
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union
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{
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ULONG SessionID;
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LUID Luid;
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};
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} RX_CONNECTION_ID, *PRX_CONNECTION_ID;
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ULONG
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RxTableComputeHashValue(
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_In_ PUNICODE_STRING Name);
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PVOID
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RxPrefixTableLookupName(
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_In_ PRX_PREFIX_TABLE ThisTable,
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_In_ PUNICODE_STRING CanonicalName,
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_Out_ PUNICODE_STRING RemainingName,
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_In_ PRX_CONNECTION_ID ConnectionId);
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PRX_PREFIX_ENTRY
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RxPrefixTableInsertName(
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_Inout_ PRX_PREFIX_TABLE ThisTable,
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_Inout_ PRX_PREFIX_ENTRY ThisEntry,
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_In_ PVOID Container,
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_In_ PULONG ContainerRefCount,
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_In_ USHORT CaseInsensitiveLength,
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_In_ PRX_CONNECTION_ID ConnectionId);
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VOID
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RxRemovePrefixTableEntry(
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_Inout_ PRX_PREFIX_TABLE ThisTable,
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_Inout_ PRX_PREFIX_ENTRY Entry);
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VOID
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RxInitializePrefixTable(
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_Inout_ PRX_PREFIX_TABLE ThisTable,
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_In_opt_ ULONG TableSize,
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_In_ BOOLEAN CaseInsensitiveMatch);
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typedef struct _RX_PREFIX_ENTRY
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{
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NODE_TYPE_CODE NodeTypeCode;
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NODE_BYTE_SIZE NodeByteSize;
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USHORT CaseInsensitiveLength;
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USHORT Spare1;
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ULONG SavedHashValue;
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LIST_ENTRY HashLinks;
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LIST_ENTRY MemberQLinks;
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UNICODE_STRING Prefix;
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PULONG ContainerRefCount;
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PVOID ContainingRecord;
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PVOID Context;
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RX_CONNECTION_ID ConnectionId;
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} RX_PREFIX_ENTRY, *PRX_PREFIX_ENTRY;
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#define RX_PREFIX_TABLE_DEFAULT_LENGTH 32
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typedef struct _RX_PREFIX_TABLE {
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NODE_TYPE_CODE NodeTypeCode;
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NODE_BYTE_SIZE NodeByteSize;
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ULONG Version;
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LIST_ENTRY MemberQueue;
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ERESOURCE TableLock;
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PRX_PREFIX_ENTRY TableEntryForNull;
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BOOLEAN CaseInsensitiveMatch;
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BOOLEAN IsNetNameTable;
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ULONG TableSize;
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#if DBG
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ULONG Lookups;
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ULONG FailedLookups;
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ULONG Considers;
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ULONG Compares;
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#endif
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LIST_ENTRY HashBuckets[RX_PREFIX_TABLE_DEFAULT_LENGTH];
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} RX_PREFIX_TABLE, *PRX_PREFIX_TABLE;
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#if (_WIN32_WINNT < 0x0600)
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#define RxAcquirePrefixTableLockShared(T, W) RxpAcquirePrefixTableLockShared((T),(W),TRUE)
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#define RxAcquirePrefixTableLockExclusive(T, W) RxpAcquirePrefixTableLockExclusive((T), (W), TRUE)
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#define RxReleasePrefixTableLock(T) RxpReleasePrefixTableLock((T), TRUE)
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BOOLEAN
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RxpAcquirePrefixTableLockShared(
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_In_ PRX_PREFIX_TABLE pTable,
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_In_ BOOLEAN Wait,
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_In_ BOOLEAN ProcessBufferingStateChangeRequests);
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BOOLEAN
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RxpAcquirePrefixTableLockExclusive(
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_In_ PRX_PREFIX_TABLE pTable,
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_In_ BOOLEAN Wait,
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_In_ BOOLEAN ProcessBufferingStateChangeRequests);
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VOID
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RxpReleasePrefixTableLock(
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_In_ PRX_PREFIX_TABLE pTable,
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_In_ BOOLEAN ProcessBufferingStateChangeRequests);
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#else
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#define RxAcquirePrefixTableLockShared(T, W) ExAcquireResourceSharedLite(&(T)->TableLock, (W))
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#define RxAcquirePrefixTableLockExclusive(T, W) ExAcquireResourceExclusiveLite(&(T)->TableLock, (W))
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#define RxReleasePrefixTableLock(T) ExReleaseResourceLite(&(T)->TableLock)
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#endif
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VOID
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RxExclusivePrefixTableLockToShared(
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_In_ PRX_PREFIX_TABLE Table);
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#define RxIsPrefixTableLockExclusive(T) ExIsResourceAcquiredExclusiveLite(&(T)->TableLock)
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#define RxIsPrefixTableLockAcquired(T) (ExIsResourceAcquiredSharedLite(&(T)->TableLock) || \
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ExIsResourceAcquiredExclusiveLite(&(T)->TableLock))
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#ifdef __REACTOS__
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#define HASH_BUCKET(T, H) &(T)->HashBuckets[H % (T)->TableSize]
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#endif
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#endif
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