windows-nt/Source/XPSP1/NT/net/unimodem/serialui/dll.c

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2020-09-26 03:20:57 -05:00
//---------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation 1993-1995
//
// File: dll.c
//
// This file contains the library entry points
//
// History:
// 12-23-93 ScottH Created
// 9-22-95 ScottH Ported to NT
//
//---------------------------------------------------------------------------
#include "proj.h"
#include <rovdbg.h> // debug assertion code
// Global data
//
BOOL g_bAdminUser;
#ifdef WIN32
CRITICAL_SECTION g_csDll = { 0 };
#endif // WIN32
/*----------------------------------------------------------
Purpose: Initialize the DLL
Returns:
Cond: --
*/
BOOL PRIVATE Dll_Initialize(void)
{
BOOL bRet = TRUE;
InitCommonControls();
return bRet;
}
/*----------------------------------------------------------
Purpose: Attach a process to this DLL
Returns: --
Cond: --
*/
BOOL PRIVATE Dll_ProcessAttach(HINSTANCE hDll)
{
BOOL bSuccess = TRUE;
__try {
InitializeCriticalSection(&g_csDll);
} __except (EXCEPTION_EXECUTE_HANDLER ) {
return FALSE;
}
g_bAdminUser = IsAdminUser();
if (bSuccess)
{
g_hinst = hDll;
DEBUG_MEMORY_PROCESS_ATTACH("serialui");
#ifdef DEBUG
// We do this simply to load the debug .ini flags
//
RovComm_ProcessIniFile();
TRACE_MSG(TF_GENERAL, "Process Attach (hDll = %lx)", hDll);
DEBUG_BREAK(BF_ONPROCESSATT);
#endif
bSuccess = Dll_Initialize();
}
return bSuccess;
}
/*----------------------------------------------------------
Purpose: Detach a process from the DLL
Returns: --
Cond: --
*/
BOOL PRIVATE Dll_ProcessDetach(HINSTANCE hDll)
{
BOOL bSuccess = TRUE;
ASSERT(hDll == g_hinst);
DEBUG_CODE( TRACE_MSG(TF_GENERAL, "Process Detach (hDll = %lx)",
hDll); )
DEBUG_CODE( DEBUG_BREAK(BF_ONPROCESSDET); )
DEBUG_MEMORY_PROCESS_DETACH();
DeleteCriticalSection(&g_csDll);
return bSuccess;
}
HINSTANCE g_hinst = 0;
// **************************************************************************
// WIN32 specific code
// **************************************************************************
#ifdef WIN32
#ifdef DEBUG
BOOL g_bExclusive=FALSE;
#endif
/*----------------------------------------------------------
Purpose: Enter an exclusive section
Returns: --
Cond: --
*/
void PUBLIC Dll_EnterExclusive(void)
{
EnterCriticalSection(&g_csDll);
#ifdef DEBUG
g_bExclusive = TRUE;
#endif
}
/*----------------------------------------------------------
Purpose: Leave an exclusive section
Returns: --
Cond: --
*/
void PUBLIC Dll_LeaveExclusive(void)
{
#ifdef DEBUG
g_bExclusive = FALSE;
#endif
LeaveCriticalSection(&g_csDll);
}
/*----------------------------------------------------------
Purpose: Win32 Libmain
Returns: --
Cond: --
*/
BOOL APIENTRY LibMain(
HANDLE hDll,
DWORD dwReason,
LPVOID lpReserved)
{
switch(dwReason)
{
case DLL_PROCESS_ATTACH:
Dll_ProcessAttach(hDll);
break;
case DLL_PROCESS_DETACH:
Dll_ProcessDetach(hDll);
break;
case DLL_THREAD_ATTACH:
#ifdef DEBUG
DEBUG_BREAK(BF_ONTHREADATT);
#endif
break;
case DLL_THREAD_DETACH:
#ifdef DEBUG
DEBUG_BREAK(BF_ONTHREADDET);
#endif
break;
default:
break;
}
return TRUE;
}
#else // WIN32
#endif // WIN32