266 lines
7.8 KiB
C++
266 lines
7.8 KiB
C++
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//////////////////////////////////////////////////////////////////////////////
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//
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// Copyright (c) 1999 Microsoft Corporation
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//
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// Module Name:
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// Dll.cpp
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//
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// Description:
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// DLL services/entry points.
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//
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// Maintained By:
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// Geoff Pease (GPease) 18-OCT-1999
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// Vij Vasu (Vvasu) 25-JAN-2001
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//
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// Notes:
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// The file Mgmt\Inc\DllSrc.cpp is not included in this file
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// because the inclusion of that file requires that the library
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// Mgmt\ClusCfg\Common\$(O)\Common.lib be linked with this DLL. Also,
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// the header file Guids.h from Mgmt\ClusCfg\Inc will be needed.
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// (DllSrc.cpp requires CFactorySrc.cpp which requires CITrackerSrc.cpp
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// which requires InterfaceTableSrc.cpp which needs Guids.h)
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//
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// Since I didn't wan't to "reach across" to the ClusCfg directory (and
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// since this DLL does not need class factories, interface tracking, etc.)
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// ClusOCM has it's own Dll.cpp.
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//
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//////////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////////
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// Include Files
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//////////////////////////////////////////////////////////////////////////////
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// Precompiled header for this DLL
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#include "pch.h"
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//////////////////////////////////////////////////////////////////////////////
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// Macro Definitions
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//////////////////////////////////////////////////////////////////////////////
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// For tracing
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DEFINE_MODULE("CLUSOCM")
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//////////////////////////////////////////////////////////////////////////////
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// Global Variables
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//////////////////////////////////////////////////////////////////////////////
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// Handle to the instance of this DLL.
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HINSTANCE g_hInstance = NULL;
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LPVOID g_GlobalMemoryList = NULL;
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// Name of the DLL
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WCHAR g_szDllFilename[ MAX_PATH ] = { 0 };
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#if !defined(NO_DLL_MAIN) || defined(ENTRY_PREFIX) || defined(DEBUG)
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//////////////////////////////////////////////////////////////////////////////
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//
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// __declspec( dllexport )
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// BOOL
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// WINAPI
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// DLLMain(
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// HANDLE hInstIn,
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// ULONG ulReasonIn,
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// LPVOID lpReservedIn
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// )
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//
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// Description:
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// Dll entry point.
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//
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// Arguments:
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// hInstIn - DLL instance handle.
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// ulReasonIn - DLL reason code for entrance.
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// lpReservedIn - Not used.
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//
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//////////////////////////////////////////////////////////////////////////////
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__declspec( dllexport ) BOOL WINAPI
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DllMain(
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HANDLE hInstIn,
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ULONG ulReasonIn,
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LPVOID // lpReservedIn
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)
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{
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BOOL fReturnValue = TRUE;
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//
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// KB: NO_THREAD_OPTIMIZATIONS gpease 19-OCT-1999
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//
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// By not defining this you can prvent the linker
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// from calling you DllEntry for every new thread.
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// This makes creating new thread significantly
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// faster if every DLL in a process does it.
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// Unfortunately, not all DLLs do this.
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//
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// In CHKed/DEBUG, we keep this on for memory
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// tracking.
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//
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#if defined( DEBUG )
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#define NO_THREAD_OPTIMIZATIONS
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#endif // DEBUG
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#if defined(NO_THREAD_OPTIMIZATIONS)
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switch( ulReasonIn )
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{
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case DLL_PROCESS_ATTACH:
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{
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#if defined(USE_WMI_TRACING)
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TraceInitializeProcess( g_rgTraceControlGuidList, ARRAYSIZE( g_rgTraceControlGuidList ), TRUE );
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#else
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TraceInitializeProcess( TRUE );
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#endif
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#if defined( DEBUG )
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TraceFunc( "" );
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TraceMessage( TEXT(__FILE__),
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__LINE__,
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__MODULE__,
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mtfDLL,
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TEXT("DLL: DLL_PROCESS_ATTACH - ThreadID = %#x"),
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GetCurrentThreadId( )
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);
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FRETURN( fReturnValue );
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#endif // DEBUG
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g_hInstance = (HINSTANCE) hInstIn;
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#if defined( ENTRY_PREFIX )
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hProxyDll = g_hInstance;
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#endif
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GetModuleFileName( g_hInstance, g_szDllFilename, MAX_PATH );
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//
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// Create a global memory list so that memory allocated by one
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// thread and handed to another can be tracked without causing
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// unnecessary trace messages.
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//
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TraceCreateMemoryList( g_GlobalMemoryList );
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} // case: DLL_PROCESS_ATTACH
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break;
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case DLL_PROCESS_DETACH:
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{
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#if defined( DEBUG )
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TraceFunc( "" );
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TraceMessage( TEXT(__FILE__),
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__LINE__,
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__MODULE__,
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mtfDLL,
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TEXT("DLL: DLL_PROCESS_DETACH - ThreadID = %#x"),
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GetCurrentThreadId( )
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);
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FRETURN( fReturnValue );
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#endif // DEBUG
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//
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// Cleanup the global memory list used to track memory allocated
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// in one thread and then handed to another.
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//
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TraceTerminateMemoryList( g_GlobalMemoryList );
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#if defined(USE_WMI_TRACING)
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TraceTerminateProcess( g_rgTraceControlGuidList, ARRAYSIZE( g_rgTraceControlGuidList ) );
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#else
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TraceTerminateProcess();
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#endif
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} // case: DLL_PROCESS_DETACH
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break;
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case DLL_THREAD_ATTACH:
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{
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TraceInitializeThread( NULL );
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#if defined( DEBUG )
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TraceMessage( TEXT(__FILE__),
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__LINE__,
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__MODULE__,
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mtfDLL,
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TEXT("The thread %#x has started."),
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GetCurrentThreadId( ) );
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TraceFunc( "" );
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TraceMessage( TEXT(__FILE__),
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__LINE__,
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__MODULE__,
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mtfDLL,
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TEXT("DLL: DLL_THREAD_ATTACH - ThreadID = %#x"),
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GetCurrentThreadId( )
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);
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FRETURN( fReturnValue );
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#endif // DEBUG
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} // case: DLL_THREAD_ATTACH
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break;
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case DLL_THREAD_DETACH:
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{
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#if defined( DEBUG )
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TraceFunc( "" );
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TraceMessage( TEXT(__FILE__),
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__LINE__,
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__MODULE__,
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mtfDLL,
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TEXT("DLL: DLL_THREAD_DETACH - ThreadID = %#x"),
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GetCurrentThreadId( )
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);
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FRETURN( fReturnValue );
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#endif // DEBUG
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TraceThreadRundown( );
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} // case: DLL_THREAD_DETACH
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break;
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default:
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{
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#if defined( DEBUG )
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TraceFunc( "" );
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TraceMessage( TEXT(__FILE__),
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__LINE__,
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__MODULE__,
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mtfDLL,
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TEXT("DLL: UNKNOWN ENTRANCE REASON - ThreadID = %#x"),
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GetCurrentThreadId( )
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);
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FRETURN( fReturnValue );
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#endif // DEBUG
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} // case: default
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break;
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}
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return fReturnValue;
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#else // !NO_THREAD_OPTIMIZATIONS
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Assert( ulReasonIn == DLL_PROCESS_ATTACH || ulReasonIn == DLL_PROCESS_DETACH );
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#if defined(DEBUG)
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#if defined(USE_WMI_TRACING)
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TraceInitializeProcess( g_rgTraceControlGuidList,
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ARRAYSIZE( g_rgTraceControlGuidList )
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);
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#else
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TraceInitializeProcess();
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#endif
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#endif // DEBUG
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g_hInstance = (HINSTANCE) hInstIn;
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#if defined( ENTRY_PREFIX )
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hProxyDll = g_hInstance;
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#endif
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GetModuleFileName( g_hInstance, g_szDllFilename, MAX_PATH );
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fReturnValue = DisableThreadLibraryCalls( g_hInstance );
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AssertMsg( fReturnValue, "*ERROR* DisableThreadLibraryCalls( ) failed." );
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return fReturnValue;
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#endif // NO_THREAD_OPTIMIZATIONS
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} //*** DllMain()
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#endif // !defined(NO_DLL_MAIN) && !defined(ENTRY_PREFIX) && !defined(DEBUG)
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