windows/SystemInitialization.cpp

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/*----------------------------------------------------------------------------*/
/*                                                                            */
/* Copyright (c) 1995, 2004 IBM Corporation. All rights reserved.             */
/* Copyright (c) 2005-2009 Rexx Language Association. All rights reserved.    */
/*                                                                            */
/* This program and the accompanying materials are made available under       */
/* the terms of the Common Public License v1.0 which accompanies this         */
/* distribution. A copy is also available at the following address:           */
/* http://www.oorexx.org/license.html                          */
/*                                                                            */
/* Redistribution and use in source and binary forms, with or                 */
/* without modification, are permitted provided that the following            */
/* conditions are met:                                                        */
/*                                                                            */
/* Redistributions of source code must retain the above copyright             */
/* notice, this list of conditions and the following disclaimer.              */
/* Redistributions in binary form must reproduce the above copyright          */
/* notice, this list of conditions and the following disclaimer in            */
/* the documentation and/or other materials provided with the distribution.   */
/*                                                                            */
/* Neither the name of Rexx Language Association nor the names                */
/* of its contributors may be used to endorse or promote products             */
/* derived from this software without specific prior written permission.      */
/*                                                                            */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS        */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT          */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS          */
/* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT   */
/* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,      */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED   */
/* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,        */
/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY     */
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/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS         */
/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.               */
/*                                                                            */
/*----------------------------------------------------------------------------*/
/******************************************************************************/
/*  wininit.c - dllentrypoint for oryxk.dll                                   */
/*                                                                            */
/******************************************************************************/
#include <stdio.h>                          /* Get printf, FILE type, etc.    */
#include <string.h>                         /* Get strcpy, strcat, etc.       */
#include <stdlib.h>                         /* Get system, max_path etc...    */
#include "RexxCore.h"
#include "SystemInterpreter.hpp"
#include "SysSemaphore.hpp"
 
/*
 */
/********************************************************************/
/*                                                                  */
/* Function name:      DllMain                                      */
/*                                                                  */
/* Description:        EntryPoint for REXX.DLL                      */
/*                                                                  */
/* Function:           Called by O/S whenever a process attaches    */
/*                     or detaches from the DLL.                    */
/*                     This entry point is used to initialize the   */
/*                     memory manager, and check to make sure       */
/*                     it is functioning.                           */
/*                                                                  */
/* Inputs:             Defined by DllEntryPoint function of Windows */
/*                                                                  */
/* Outputs:            true if successful, false if failure.        */
/*                                                                  */
/* Notes:                                                           */
/*                                                                  */
/*                                                                  */
/********************************************************************/
BOOL WINAPI DllMain(
  HINSTANCE hinstDll,
  DWORD fdwReason,
  LPVOID lpvReserved)
{
   if (fdwReason == DLL_PROCESS_ATTACH)
   {
       // SysSemaphore uses a thread local storage index, it's best to allocate from DllMain()
       if ( ! SysSemaphore::allocTlsIndex() )
       {
           return FALSE;
       }
 
       // perform the interpreter start up
       SystemInterpreter::processStartup(hinstDll);
   }
   else if (fdwReason == DLL_PROCESS_DETACH)
   {
       SystemInterpreter::processShutdown();
 
       // Free the thread local storage index
       SysSemaphore::deallocTlsIndex();
   }
   return TRUE;
}