104 lines
3.2 KiB
C++
104 lines
3.2 KiB
C++
//
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// MODULE: Event.cpp
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//
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// PURPOSE: Fully implements class CEvent: Event Logging
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//
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// PROJECT: Generic Troubleshooter DLL for Microsoft AnswerPoint
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//
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// COMPANY: Saltmine Creative, Inc. (206)-284-7511 support@saltmine.com
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//
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// AUTHOR: Roman Mach
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//
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// ORIGINAL DATE: 8-2-96
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//
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// NOTES:
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//
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// Version Date By Comments
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//--------------------------------------------------------------------
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// V3.0 9/18/98 JM Abstracted as a class. Previously, global.
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//
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//////////////////////////////////////////////////////////////////////
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#include "stdafx.h"
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#include "Event.h"
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bool CEvent::s_bUseEventLog = false;// Online Troubleshooter, will promptly set this
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// true in DLLMain. For Local Troubleshooter,
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// we leave this false.
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bool CEvent::s_bLogAll = true; // can be changed by RegistryMonitor
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CAbstractCounter * const CEvent::s_pcountErrors = &(g_ApgtsCounters.m_LoggedErrors);
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inline WORD evtype(DWORD e) {return (1 << (3 - ((e >> 30))));}
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inline WORD evcode(DWORD e) {return (WORD)(e & 0xFFFF);}
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/*static*/ void CEvent::SetUseEventLog(bool bUseEventLog)
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{
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s_bUseEventLog = bUseEventLog;
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}
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// ReportWFEvent (Based on Microsoft code)
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//
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// report an event to the NT event watcher
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// pass 1, 2 or 3 strings
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//
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// no return value
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// NOTE: inefficient: could RegisterEventSource in DLLMain code for DLL_PROCESS_ATTACH
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// & unregister in DLL_PROCESS_DETACH. Then could use handle as a global.
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/* static */ void CEvent::ReportWFEvent(
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LPCTSTR string1, // if there is a throw, this is throw file & line
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// otherwise, file and line where ReportWFEvent is called
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LPCTSTR string2, // always file and line where ReportWFEvent is called
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LPCTSTR string3, // use may differ for different log entries
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LPCTSTR string4, // use may differ for different log entries
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DWORD eventID)
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{
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if (!s_bUseEventLog)
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return;
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HANDLE hEvent;
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LPCTSTR pszaStrings[4];
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WORD cStrings;
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WORD type = evtype(eventID);
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WORD code = evcode(eventID);
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if (s_bLogAll
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|| type == EVENTLOG_ERROR_TYPE
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|| type == EVENTLOG_WARNING_TYPE
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|| code == EV_GTS_PROCESS_START
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|| code == EV_GTS_PROCESS_STOP)
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{
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cStrings = 0;
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if ((pszaStrings[0] = string1) && (string1[0]))
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cStrings = 1;
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if ((pszaStrings[1] = string2) && (string2[0]))
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cStrings = 2;
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if ((pszaStrings[2] = string3) && (string3[0]))
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cStrings = 3;
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if ((pszaStrings[3] = string4) && (string4[0]))
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cStrings = 4;
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if (cStrings == 0)
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return;
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hEvent = ::RegisterEventSource(
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NULL, // server name for source (NULL means this computer)
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REG_EVT_ITEM_STR); // source name for registered handle
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if (hEvent)
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{
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::ReportEvent(hEvent, // handle returned by RegisterEventSource
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type, // event type to log
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0, // event category
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eventID, // event identifier
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0, // user security identifier (optional)
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cStrings, // number of strings to merge with message
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0, // size of binary data, in bytes
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(LPCTSTR *)pszaStrings, // array of strings to merge with message
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NULL); // address of binary data
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::DeregisterEventSource(hEvent);
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}
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if (evtype(eventID) == EVENTLOG_ERROR_TYPE)
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s_pcountErrors->Increment();
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}
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}
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