/* $Id: initterm.cpp,v 1.33 2001-09-05 13:53:50 bird Exp $ */
/*
 * USER32 DLL entry point
 *
 * Copyright 1998 Sander van Leeuwen
 * Copyright 1998 Peter Fitzsimmons
 *
 *
 * Project Odin Software License can be found in LICENSE.TXT
 *
 */

/*-------------------------------------------------------------*/
/* INITERM.C -- Source for a custom dynamic link library       */
/*              initialization and termination (_DLL_InitTerm) */
/*              function.                                      */
/*                                                             */
/* When called to perform initialization, this sample function */
/* gets storage for an array of integers, and initializes its  */
/* elements with random integers.  At termination time, it     */
/* frees the array.  Substitute your own special processing.   */
/*-------------------------------------------------------------*/


/* Include files */
#define  INCL_DOSMODULEMGR
#define  INCL_DOSPROCESS
#define  INCL_DOSSEMAPHORES
#define  INCL_DOSMISC
#include <os2wrap.h>    //Odin32 OS/2 api wrappers
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <odin.h>
#include <misc.h>       /*PLF Wed  98-03-18 23:18:29*/
#include <win32type.h>
#include <win32api.h>
#include <winconst.h>
#include <odinlx.h>
#include "initterm.h"
#include <exitlist.h>
#include <initdll.h>

#define DBG_LOCALLOG    DBG_initterm
#include "dbglocal.h"

/*-------------------------------------------------------------------*/
/* A clean up routine registered with DosExitList must be used if    */
/* runtime calls are required and the runtime is dynamically linked. */
/* This will guarantee that this clean up routine is run before the  */
/* library DLL is terminated.                                        */
/*-------------------------------------------------------------------*/
static void APIENTRY cleanup(ULONG reason);

BOOL  fVersionWarp3 = FALSE;

/****************************************************************************/
/* _DLL_InitTerm is the function that gets called by the operating system   */
/* loader when it loads and frees this DLL for each process that accesses   */
/* this DLL.  However, it only gets called the first time the DLL is loaded */
/* and the last time it is freed for a particular process.  The system      */
/* linkage convention MUST be used because the operating system loader is   */
/* calling this function.                                                   */
/****************************************************************************/
ULONG DLLENTRYPOINT_CCONV DLLENTRYPOINT_NAME(ULONG hModule, ULONG ulFlag)
{
   size_t i;
   APIRET rc;
   ULONG  version[2];

   /*-------------------------------------------------------------------------*/
   /* If ulFlag is zero then the DLL is being loaded so initialization should */
   /* be performed.  If ulFlag is 1 then the DLL is being freed so            */
   /* termination should be performed.                                        */
   /*-------------------------------------------------------------------------*/

   switch (ulFlag) {
      case 0 :
         ctordtorInit();

         rc = DosQuerySysInfo(QSV_VERSION_MAJOR, QSV_VERSION_MINOR, version, sizeof(version));
         if(rc == 0){
              if(version[0] >= 20 && version[1] <= 30) {
                  fVersionWarp3 = TRUE;
              }
         }

         /*******************************************************************/
         /* A DosExitList routine must be used to clean up if runtime calls */
         /* are required and the runtime is dynamically linked.             */
         /*******************************************************************/

         rc = DosExitList(EXITLIST_USER32|EXLST_ADD, cleanup);
         if(rc)
                return 0UL;

         rc = inittermUser32(hModule, ulFlag);
         break;
      case 1 :
         rc = inittermUser32(hModule, ulFlag);
         break;
      default  :
         return 0UL;
   }

   /***********************************************************/
   /* A non-zero value must be returned to indicate success.  */
   /***********************************************************/
   return 1UL;
}

static void APIENTRY cleanup(ULONG ulReason)
{
   cleanupUser32(ulReason);
   ctordtorTerm();

   DosExitList(EXLST_EXIT, cleanup);
}