220 lines
5.8 KiB
C
220 lines
5.8 KiB
C
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/*++
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Copyright (c) 1997-1999 Microsoft Corporation
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Module Name:
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global.h
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Abstract:
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Global flags and parameters for the NT File Replication Service.
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Author:
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David Orbits (davidor) - 4-Mar-1997
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Revision History:
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--*/
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//
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// Limit the amount of staging area used (in Kilobytes). This is
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// a soft limit, the actual usage may be higher.
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//
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extern DWORD StagingLimitInKb;
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//
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// Default staging limit in kb to be assigned to a new staging area.
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//
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extern DWORD DefaultStagingLimitInKb;
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//
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// Running as service or as exe
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//
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extern BOOL RunningAsAService;
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//
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// Running with or without the DS
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//
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extern BOOL NoDs;
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#if DBG
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//
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// Allow multiple servers on one machine
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//
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extern PWCHAR ServerName;
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extern PWCHAR IniFileName;
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extern GUID *ServerGuid;
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#endif DBG
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//
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// Working directory
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//
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extern PWCHAR WorkingPath;
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//
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// Server Principle Name
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//
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extern PWCHAR ServerPrincName;
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//
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// Running as a server in a domain
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//
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extern BOOL IsAMember;
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//
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// Running as a DC
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//
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extern BOOL IsADc;
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extern BOOL IsAPrimaryDc;
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//
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// Handle to the DC.
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//
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extern HANDLE DsHandle;
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//
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// The NtFrs Service is shutting down. Set TRUE when the ShutDownEvent is set.
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//
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extern BOOL FrsIsShuttingDown;
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//
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// Set TRUE if the shutdown request came from Service Control Manager rather
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// than from an internally triggered shutdown. e.g. insufficient resources.
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//
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extern BOOL FrsScmRequestedShutdown;
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//
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// Global set to TRUE when FRS asserts.
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//
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extern BOOL FrsIsAsserting;
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//
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// Location of Jet Database (UNICODE and ASCII)
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//
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extern PWCHAR JetPath;
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extern PWCHAR JetFile;
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extern PWCHAR JetSys;
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extern PWCHAR JetTemp;
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extern PWCHAR JetLog;
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extern PCHAR JetPathA;
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extern PCHAR JetFileA;
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extern PCHAR JetSysA;
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extern PCHAR JetTempA;
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extern PCHAR JetLogA;
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extern PWCHAR ServiceLongName;
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//
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// Shared between the journal, database, and replica command servers
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//
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extern FRS_QUEUE ReplicaListHead;
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extern FRS_QUEUE ReplicaFaultListHead;
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extern BOOL DBSEmptyDatabase;
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extern COMMAND_SERVER DBServiceCmdServer;
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extern COMMAND_SERVER ReplicaCmdServer;
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extern COMMAND_SERVER InitSyncCs;
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#define bugbug(_text_)
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#define bugmor(_text_)
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//
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// The Change Order Lock table is used to synchronize access to change orders.
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// The lock index is based on a hash of the change order FileGuid. This ensures
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// that when a duplicate change order (from another inbound partner) is trying
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// to issue we will interlock against the retire operation on the same change
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// order with the same Guid. The FileGuid is used because checks are also needed
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// against other change orders on the same file and to check for conflicting
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// activity on the parent change order.
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//
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// The lock array reduces contention and it also avoids the allocating and
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// freeing the crit sec resource if it lived in the change order itself
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// (which doesn't work anyway because of the race between issue check and
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// retire of duplicate change orders).
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// *** The array size must be pwr of 2.
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//
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#define NUMBER_CHANGE_ORDER_LOCKS 16
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CRITICAL_SECTION ChangeOrderLockTable[NUMBER_CHANGE_ORDER_LOCKS];
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// FidHashValue = (HighPart >> 12) + LowPart + (HighPart << (32-12));
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#define HASH_FID(_pUL_, _TABLE_SIZE_) \
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(( (_pUL_[1] >> 12) + _pUL_[0] + (_pUL_[1] << (32-12))) & ((_TABLE_SIZE_)-1))
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#define HASH_GUID(_pUL_, _TABLE_SIZE_) \
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((_pUL_[0] ^ _pUL_[1] ^ _pUL_[2] ^ _pUL_[3]) & ((_TABLE_SIZE_)-1))
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//#define ChgOrdAcquireLockGuid(_coe_) { \
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// PULONG pUL = (PULONG) &((_coe_)->Cmd.FileGuid); \
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// EnterCriticalSection( \
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// &ChangeOrderLockTable[HASH_GUID(pUL, NUMBER_CHANGE_ORDER_LOCKS)] ); \
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//}
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//
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//#define ChgOrdReleaseLockGuid(_coe_) { \
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// PULONG pUL = (PULONG) &((_coe_)->Cmd.FileGuid); \
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// LeaveCriticalSection( \
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// &ChangeOrderLockTable[HASH_GUID(pUL, NUMBER_CHANGE_ORDER_LOCKS)] ); \
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//}
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#define UNDEFINED_LOCK_SLOT (0xFFFFFFFF)
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#define ChgOrdGuidLock(_pGuid_) \
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HASH_GUID(((PULONG)(_pGuid_)), NUMBER_CHANGE_ORDER_LOCKS)
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//
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// Get/Release the change order lock based on the lock slot.
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//
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#define ChgOrdAcquireLock(_slot_) \
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FRS_ASSERT((_slot_) != UNDEFINED_LOCK_SLOT); \
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EnterCriticalSection(&ChangeOrderLockTable[(_slot_)])
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#define ChgOrdReleaseLock(_slot_) \
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FRS_ASSERT((_slot_) != UNDEFINED_LOCK_SLOT); \
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LeaveCriticalSection(&ChangeOrderLockTable[(_slot_)])
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//
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// Get/Release the change order lock based on the File Guid
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//
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#define ChgOrdAcquireLockGuid(_coe_) { \
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ULONG __Slot = ChgOrdGuidLock( &((_coe_)->Cmd.FileGuid)); \
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ChgOrdAcquireLock(__Slot); \
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}
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#define ChgOrdReleaseLockGuid(_coe_) { \
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ULONG __Slot = ChgOrdGuidLock( &((_coe_)->Cmd.FileGuid)); \
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ChgOrdReleaseLock(__Slot); \
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}
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//
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// Process Handle
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//
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extern HANDLE ProcessHandle;
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//
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// if TRUE then preserve existing file GUIDs whenever possible.
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//
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extern BOOL PreserveFileOID;
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#define QUADZERO ((ULONGLONG)0)
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//
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// Some Time Conversions.
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//
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#define CONVERT_FILETIME_TO_MINUTES ((ULONGLONG)60L * 1000L * 1000L * 10L)
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#define CONVERT_FILETIME_TO_DAYS ((ULONGLONG)24L * 60L * 60L * 1000L * 1000L * 10L)
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#define ONEDAY ((ULONGLONG)1L * 24L * 60L * 60L * 1000L * 1000L * 10L)
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#define WSTR_EQ(_a_, _b_) (_wcsicmp(_a_, _b_) == 0)
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#define WSTR_NE(_a_, _b_) (_wcsicmp(_a_, _b_) != 0)
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#define ASTR_EQ(_a_, _b_) (_stricmp(_a_, _b_) == 0)
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#define ASTR_NE(_a_, _b_) (_stricmp(_a_, _b_) != 0)
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