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156 lines
3.4 KiB
156 lines
3.4 KiB
/*++
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Copyright (c) 2000-2002 Microsoft Corporation
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Module Name:
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uctrace.c
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Abstract:
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This module implements a tracing facility for the client.
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Author:
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Rajesh Sundaram (rajeshsu) - 17th July 2001.
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Revision History:
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--*/
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#include "precomp.h"
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#if !DBG
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static int g_UcTraceDummyDeclarationToKeepW4WarningsQuiet;
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#else
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#ifdef ALLOC_PRAGMA
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#pragma alloc_text( PAGEUC, UcCreateTraceLog )
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#pragma alloc_text( PAGEUC, UcDestroyTraceLog )
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#pragma alloc_text( PAGEUC, UcWriteTraceLog )
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#endif
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/***************************************************************************++
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Routine Description:
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Creates a new (empty) trace log buffer.
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Arguments:
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LogSize - Supplies the number of entries in the log.
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ExtraBytesInHeader - Supplies the number of extra bytes to include
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in the log header. This is useful for adding application-
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specific data to the log.
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Return Value:
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PTRACE_LOG - Pointer to the newly created log if successful,
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NULL otherwise.
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--***************************************************************************/
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PTRACE_LOG
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UcCreateTraceLog(
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IN LONG LogSize,
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IN LONG ExtraBytesInHeader
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)
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{
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return CreateTraceLog(
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UC_TRACE_LOG_SIGNATURE,
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LogSize,
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ExtraBytesInHeader,
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sizeof(UC_TRACE_LOG_ENTRY),
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TRACELOG_HIGH_PRIORITY,
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UL_REF_TRACE_LOG_POOL_TAG
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);
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} // UcCreateTraceLog
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/***************************************************************************++
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Routine Description:
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Destroys a filter queue trace log buffer created with
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UcCreateTraceLog().
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Arguments:
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pLog - Supplies the filter queue trace log buffer to destroy.
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--***************************************************************************/
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VOID
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UcDestroyTraceLog(
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IN PTRACE_LOG pLog
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)
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{
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DestroyTraceLog( pLog, UL_REF_TRACE_LOG_POOL_TAG );
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} // UcDestroyTraceLog
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/***************************************************************************++
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Routine Description:
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Writes a new entry to the specified filter queue trace log.
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Arguments:
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pLog - Supplies the log to write to.
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ConnectionId - the id of the connection we're tracing
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RequestId - the id of the request we're tracing
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Action - Supplies an action code for the new log entry.
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--***************************************************************************/
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VOID
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UcWriteTraceLog(
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IN PTRACE_LOG pLog,
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IN USHORT Action,
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IN PVOID pContext1,
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IN PVOID pContext2,
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IN PVOID pContext3,
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IN PVOID pContext4,
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IN PVOID pFileName,
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IN USHORT LineNumber
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)
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{
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UC_TRACE_LOG_ENTRY entry;
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//
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// Initialize the entry.
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//
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entry.Action = Action;
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entry.Processor = (USHORT)KeGetCurrentProcessorNumber();
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entry.pProcess = PsGetCurrentProcess();
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entry.pThread = PsGetCurrentThread();
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entry.pContext1 = pContext1;
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entry.pContext2 = pContext2;
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entry.pContext3 = pContext3;
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entry.pContext4 = pContext4;
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entry.pFileName = pFileName;
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entry.LineNumber = LineNumber;
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//
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// Write it to the logs.
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//
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WriteTraceLog( pLog, &entry );
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} // UcWriteTraceLog
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#endif // DBG
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