/* $Id: initterm.cpp,v 1.66 2002-05-16 12:16:00 sandervl Exp $
 *
 * KERNEL32 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_DOSMISC
#define  INCL_DOSPROCESS
#define  INCL_DOSSEMAPHORES
#include <os2wrap.h>    //Odin32 OS/2 api wrappers
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <misc.h>
#include <wprocess.h>
#include "handlemanager.h"
#include "profile.h"
#include <options.h>
#include "initterm.h"
#include <win32type.h>
#include <odinlx.h>
#include "oslibmisc.h"
#include <heapshared.h>
#include <heapcode.h>
#include "mmap.h"
#include "directory.h"
#include "hmdevio.h"
#include <windllbase.h>
#include "winexepe2lx.h"
#include <exitlist.h>
#include "oslibdos.h"
#include <cpuhlp.h>
#include <Win32k.h>
#include <initdll.h>
#include <codepage.h>
#include <process.h>

#define DBG_LOCALLOG    DBG_initterm
#include "dbglocal.h"

BOOL  fVersionWarp3 = FALSE;
BOOL  fCustomBuild  = FALSE;

//Global DLL Data
#pragma data_seg(_GLOBALDATA)
int globLoadNr = 0;
#pragma data_seg()

/*-------------------------------------------------------------------*/
/* 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);

/****************************************************************************/
/* _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  ulSysinfo, 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.                                        */
    /*-------------------------------------------------------------------------*/

    if(fInit == TRUE && ulFlag == 0) {
        return 1; //already initialized
    }

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

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

            rc = DosExitList(EXITLIST_KERNEL32|EXLST_ADD, cleanup);
            if (rc)
                return 0UL;

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

            rc = inittermKernel32(hModule, ulFlag);
            break;
        }

        case 1 :
            rc = inittermKernel32(hModule, ulFlag);
            break;

        default  :
            return 0UL;
    }

    /***********************************************************/
    /* A non-zero value must be returned to indicate success.  */
    /***********************************************************/
    return 1UL;
}
//******************************************************************************
//******************************************************************************
static void APIENTRY cleanup(ULONG ulReason)
{
    cleanupKernel32(ulReason);

    ctordtorTerm();

    DosExitList(EXLST_EXIT, cleanup);
    return ;
}
//******************************************************************************
ULONG APIENTRY O32__DLL_InitTerm(ULONG handle, ULONG flag);
//******************************************************************************
ULONG APIENTRY InitializeKernel32()
{
    HMODULE hModule;

    if(!fInit) {
        loadNr = globLoadNr++;
    }
    DosQueryModuleHandle("WGSS50", &hModule);
    O32__DLL_InitTerm(hModule, 0);
    DosQueryModuleHandle("KERNEL32", &hModule);
    return DLLENTRYPOINT_NAME(hModule, 0);
}
//******************************************************************************
//******************************************************************************