73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
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//
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// tracelog.c
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//
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// Copyright (c) 1996 FORE Systems, Inc.
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// All rights reserved.
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//
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// THIS SOURCE CODE CONTAINS CONFIDENTIAL INFORMATION THAT IS OWNED BY FORE
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// SYSTEMS, INC. AND MAY NOT BE COPIED, DISCLOSED OR OTHERWISE USED WITHOUT
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// THE EXPRESS WRITTEN CONSENT OF FORE SYSTEMS, INC.
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//
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#include <precomp.h>
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#include <stdlib.h>
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#include <stdarg.h>
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#pragma hdrstop
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void
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InitTraceLog(PTRACELOG TraceLog, unsigned char *Storage,
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unsigned long StorageSizeBytes)
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{
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memset(TraceLog, 0, sizeof(TraceLog));
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if (Storage == NULL)
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return;
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TraceLog->Storage = Storage;
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TraceLog->StorageSizeBytes = StorageSizeBytes;
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TraceLog->First = (PTRACEENTRY)TraceLog->Storage;
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TraceLog->Last =
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(PTRACEENTRY) (TraceLog->Storage +
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((TraceLog->StorageSizeBytes / sizeof(TRACEENTRY)) * sizeof(TRACEENTRY)) -
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sizeof(TRACEENTRY));
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TraceLog->Current = TraceLog->First;
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memset(TraceLog->Storage, 0, TraceLog->StorageSizeBytes);
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}
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void
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TraceLogWrite(PTRACELOG TraceLog, unsigned long EventId, ...)
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{
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PTRACEENTRY TraceEntry;
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unsigned long ParamCount;
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unsigned long i;
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va_list ap;
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if (TraceLog->Storage == NULL)
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return;
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ACQUIRE_GLOBAL_LOCK(pAtmLaneGlobalInfo);
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TraceEntry = TraceLog->Current;
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ParamCount = TL_GET_PARAM_COUNT(EventId);
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memset(TraceEntry, 0, sizeof(TRACEENTRY));
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TraceEntry->EventId = EventId;
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TraceEntry->Time = AtmLaneSystemTimeMs();
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if (ParamCount > 0)
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{
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va_start(ap, EventId);
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for(i = 0; i < ParamCount; i++)
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TraceEntry->Params[i] = va_arg(ap, unsigned long);
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}
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if (TraceLog->Current >= TraceLog->Last)
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TraceLog->Current = TraceLog->First;
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else
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TraceLog->Current++;
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RELEASE_GLOBAL_LOCK(pAtmLaneGlobalInfo);
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}
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