mirror of https://github.com/tongzx/nt5src
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
156 lines
3.6 KiB
156 lines
3.6 KiB
/*++
|
|
|
|
Copyright (c) 1991 Microsoft Corporation
|
|
|
|
Module Name:
|
|
|
|
spnlckdb.c
|
|
|
|
Abstract:
|
|
|
|
This module contains code which allows debugging of spinlock related NBF
|
|
problems. Most of this code is conditional on the manifest constant
|
|
NBF_LOCKS.
|
|
|
|
Author:
|
|
|
|
David Beaver 13-Feb-1991
|
|
(From Chuck Lenzmeier, Jan 1991)
|
|
|
|
Environment:
|
|
|
|
Kernel mode
|
|
|
|
Revision History:
|
|
|
|
--*/
|
|
|
|
#include "precomp.h"
|
|
#pragma hdrstop
|
|
|
|
#ifdef NBF_LOCKS
|
|
|
|
KSPIN_LOCK NbfGlobalLock = NULL;
|
|
PKTHREAD NbfGlobalLockOwner = NULL;
|
|
ULONG NbfGlobalLockRecursionCount = 0;
|
|
ULONG NbfGlobalLockMaxRecursionCount = 0;
|
|
KIRQL NbfGlobalLockPreviousIrql = (KIRQL)-1;
|
|
BOOLEAN NbfGlobalLockPrint = 1;
|
|
|
|
#define PRINT_ERR if ( (NbfGlobalLockPrint & 1) != 0 ) DbgPrint
|
|
#define PRINT_INFO if ( (NbfGlobalLockPrint & 2) != 0 ) DbgPrint
|
|
|
|
VOID
|
|
NbfAcquireSpinLock(
|
|
IN PKSPIN_LOCK Lock,
|
|
OUT PKIRQL OldIrql,
|
|
IN PSZ LockName,
|
|
IN PSZ FileName,
|
|
IN ULONG LineNumber
|
|
)
|
|
{
|
|
KIRQL previousIrql;
|
|
|
|
PKTHREAD currentThread = KeGetCurrentThread( );
|
|
|
|
if ( NbfGlobalLockOwner == currentThread ) {
|
|
|
|
ASSERT( Lock != NULL ); // else entering NBF with lock held
|
|
|
|
ASSERT( NbfGlobalLockRecursionCount != 0 );
|
|
NbfGlobalLockRecursionCount++;
|
|
if ( NbfGlobalLockRecursionCount > NbfGlobalLockMaxRecursionCount ) {
|
|
NbfGlobalLockMaxRecursionCount = NbfGlobalLockRecursionCount;
|
|
}
|
|
|
|
PRINT_INFO( "NBF reentered from %s/%ld, new count %ld\n",
|
|
FileName, LineNumber, NbfGlobalLockRecursionCount );
|
|
|
|
} else {
|
|
|
|
ASSERT( Lock == NULL ); // else missing an ENTER_NBF call
|
|
|
|
KeAcquireSpinLock( &NbfGlobalLock, &previousIrql );
|
|
|
|
ASSERT( NbfGlobalLockRecursionCount == 0 );
|
|
NbfGlobalLockOwner = currentThread;
|
|
NbfGlobalLockPreviousIrql = previousIrql;
|
|
NbfGlobalLockRecursionCount = 1;
|
|
|
|
PRINT_INFO( "NBF entered from %s/%ld\n", FileName, LineNumber );
|
|
|
|
}
|
|
|
|
ASSERT( KeGetCurrentIrql() == DISPATCH_LEVEL );
|
|
|
|
return;
|
|
|
|
} // NbfAcquireSpinLock
|
|
|
|
VOID
|
|
NbfReleaseSpinLock(
|
|
IN PKSPIN_LOCK Lock,
|
|
IN KIRQL OldIrql,
|
|
IN PSZ LockName,
|
|
IN PSZ FileName,
|
|
IN ULONG LineNumber
|
|
)
|
|
{
|
|
PKTHREAD currentThread = KeGetCurrentThread( );
|
|
KIRQL previousIrql;
|
|
|
|
ASSERT( NbfGlobalLockOwner == currentThread );
|
|
ASSERT( NbfGlobalLockRecursionCount != 0 );
|
|
ASSERT( KeGetCurrentIrql() == DISPATCH_LEVEL );
|
|
|
|
if ( --NbfGlobalLockRecursionCount == 0 ) {
|
|
|
|
ASSERT( Lock == NULL ); // else not exiting NBF, but releasing lock
|
|
|
|
NbfGlobalLockOwner = NULL;
|
|
previousIrql = NbfGlobalLockPreviousIrql;
|
|
NbfGlobalLockPreviousIrql = (KIRQL)-1;
|
|
|
|
PRINT_INFO( "NBF exited from %s/%ld\n", FileName, LineNumber );
|
|
|
|
KeReleaseSpinLock( &NbfGlobalLock, previousIrql );
|
|
|
|
} else {
|
|
|
|
ASSERT( Lock != NULL ); // else exiting NBF with lock held
|
|
|
|
PRINT_INFO( "NBF semiexited from %s/%ld, new count %ld\n",
|
|
FileName, LineNumber, NbfGlobalLockRecursionCount );
|
|
|
|
}
|
|
|
|
return;
|
|
|
|
} // NbfReleaseSpinLock
|
|
|
|
VOID
|
|
NbfFakeSendCompletionHandler(
|
|
IN NDIS_HANDLE ProtocolBindingContext,
|
|
IN PNDIS_PACKET NdisPacket,
|
|
IN NDIS_STATUS NdisStatus
|
|
)
|
|
{
|
|
ENTER_NBF;
|
|
NbfSendCompletionHandler (ProtocolBindingContext, NdisPacket, NdisStatus);
|
|
LEAVE_NBF;
|
|
}
|
|
|
|
VOID
|
|
NbfFakeTransferDataComplete (
|
|
IN NDIS_HANDLE BindingContext,
|
|
IN PNDIS_PACKET NdisPacket,
|
|
IN NDIS_STATUS NdisStatus,
|
|
IN UINT BytesTransferred
|
|
)
|
|
{
|
|
ENTER_NBF;
|
|
NbfTransferDataComplete (BindingContext, NdisPacket, NdisStatus, BytesTransferred);
|
|
LEAVE_NBF;
|
|
}
|
|
|
|
#endif // def NBF_LOCKS
|