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224 lines
3.7 KiB
224 lines
3.7 KiB
/*
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************************************************************************
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Copyright (c) 1996-1997 Microsoft Corporation
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Module Name:
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gpcmain.c
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Abstract:
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This file contains initialization stuff for the GPC
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Author:
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Ofer Bar - April 15, 1997
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Environment:
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Kernel mode
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Revision History:
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************************************************************************
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*/
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#include "gpcpre.h"
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#if DBG
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ULONG DebugFlags = PATTERN | RHIZOME
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| LOCKS | CLASSIFY
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| BLOB | MEMORY | IOCTL
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| CLIENT | MAPHAND | CLASSHAND | PAT_TIMER;
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ULONG DbgPrintFlags = 0;
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ULONG BytesAllocated = 0;
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NDIS_SPIN_LOCK LogLock;
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//extern LOG Log;
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LOG Log = {0, NULL, NULL, 0};
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//
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// Forward definition
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//
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#if 0
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ULONG
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StrLen(
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IN UCHAR *Ptr
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);
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#endif
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NTSTATUS
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InitializeLog(
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VOID
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)
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{
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NTSTATUS Status = STATUS_SUCCESS;
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//
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// allocate memory for it
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//
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Log.Buffer = (PROW)ExAllocatePoolWithTag(NonPagedPool,
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(LOGSIZE+4) * sizeof(ROW),
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DebugTag);
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if (Log.Buffer) {
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Log.Index = 0;
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Log.Wraps = 0;
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Log.Current = Log.Buffer;
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NdisAllocateSpinLock(&LogLock);
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} else {
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Status = STATUS_NO_MEMORY;
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}
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return Status;
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}
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VOID
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FreeDebugLog(VOID)
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{
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ExFreePool(Log.Buffer);
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Log.Buffer = NULL;
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}
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#if 0
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ULONG
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StrLen(
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IN UCHAR *Ptr
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)
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/*++
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Routine Description:
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This function does a strlen - so that we don't have to enable intrinsics.
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Arguments:
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Ptr - a ptr to the string
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Return Value:
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- the number of characters.
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--*/
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{
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ULONG Count = 0;
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while (*Ptr++) {
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Count++;
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}
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return( Count );
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}
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#endif
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VOID
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TraceRtn(
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IN UCHAR *File,
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IN ULONG Line,
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IN UCHAR *FuncName,
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IN ULONG_PTR Param1,
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IN ULONG_PTR Param2,
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IN ULONG Param3,
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IN ULONG Param4,
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IN ULONG Mask
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)
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/*++
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Routine Description:
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This function logs the file and line number along with 3 other parameters
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into a circular buffer and possibly to the debug terminal.
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Arguments:
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Return Value:
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--*/
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{
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NTSTATUS status;
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PROW pEntry;
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PUCHAR pFile, p;
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LONG l, m;
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if (!Log.Buffer)
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{
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return;
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}
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NdisAcquireSpinLock(&LogLock);
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pEntry = &Log.Buffer[Log.Index];
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p = File;
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pFile = p + strlen(File) - 1;
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while (*pFile != '\\' && p != pFile) {
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pFile--;
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}
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//pFile = (PUCHAR)strrchr((CONST CHAR * )File,'\\');
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pFile++;
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RtlZeroMemory(&pEntry->Row[0], LOGWIDTH);
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l = strlen(pFile);
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RtlCopyMemory(&pEntry->Row[0], pFile, min(l,LOGWIDTH));
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if (l+3 < LOGWIDTH) {
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pEntry->Row[l+0] = ' ';
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pEntry->Row[l+1] = '%';
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pEntry->Row[l+2] = 'd';
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pEntry->Row[l+3] = ' ';
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}
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if (l+4 < LOGWIDTH) {
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m = strlen(FuncName);
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RtlCopyMemory(&pEntry->Row[l+4], FuncName, min(m,LOGWIDTH-(l+4)));
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}
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pEntry->Line = Line;
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pEntry->Time = GetTime();
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pEntry->P1 = Param1;
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pEntry->P2 = Param2;
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pEntry->P3 = Param3;
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pEntry->P4 = Param4;
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//++Log.Current;
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if (++(Log.Index) >= LOGSIZE)
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{
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Log.Index = 0;
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Log.Wraps++;
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Log.Current = Log.Buffer;
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}
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if (DebugFlags & KD_PRINT) {
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KdPrint(( pEntry->Row, Line ));
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KdPrint(( " %p %p %d %d\n", Param1, Param2, Param3, Param4 ));
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}
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NdisReleaseSpinLock(&LogLock);
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}
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#endif // DBG
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