source: trunk/src/kernel32/old/initterm.cpp@ 1036

Last change on this file since 1036 was 955, checked in by sandervl, 26 years ago

Backup copy of old kernel32
File size: 5.1 KB
Line 
1/* $Id: initterm.cpp,v 1.1 1999-09-15 23:32:56 sandervl Exp $ */
2
3/*
4 * KERNEL32 DLL entry point
5 *
6 * Copyright 1998 Sander van Leeuwen
7 * Copyright 1998 Peter Fitzsimmons
8 *
9 *
10 * Project Odin Software License can be found in LICENSE.TXT
11 *
12 */
13
14/*-------------------------------------------------------------*/
15/* INITERM.C -- Source for a custom dynamic link library */
16/* initialization and termination (_DLL_InitTerm) */
17/* function. */
18/* */
19/* When called to perform initialization, this sample function */
20/* gets storage for an array of integers, and initializes its */
21/* elements with random integers. At termination time, it */
22/* frees the array. Substitute your own special processing. */
23/*-------------------------------------------------------------*/
24
25
26/* Include files */
27#define INCL_DOSMODULEMGR
28#define INCL_DOSMISC
29#define INCL_DOSPROCESS
30#include <os2wrap.h> //Odin32 OS/2 api wrappers
31#include <stdlib.h>
32#include <stdio.h>
33#include <string.h>
34#include <misc.h>
35#include <wprocess.h>
36#include "handlemanager.h"
37#include "profile.h"
38#include "initterm.h"
39
40/*-------------------------------------------------------------------*/
41/* A clean up routine registered with DosExitList must be used if */
42/* runtime calls are required and the runtime is dynamically linked. */
43/* This will guarantee that this clean up routine is run before the */
44/* library DLL is terminated. */
45/*-------------------------------------------------------------------*/
46static void APIENTRY cleanup(ULONG reason);
47extern void APIENTRY Win32DllExitList(ULONG reason);
48
49extern "C" {
50void CDECL _ctordtorInit( void );
51void CDECL _ctordtorTerm( void );
52}
53
54//Global DLL Data
55#pragma data_seg(_GLOBALDATA)
56int globLoadNr = 0;
57#pragma data_seg()
58
59/* Tue 03.03.1998: knut */
60/* flag to optimize DosAllocMem to use all the memory on SMP machines */
61ULONG flAllocMem = 0;
62int loadNr = 0;
63
64/****************************************************************************/
65/* _DLL_InitTerm is the function that gets called by the operating system */
66/* loader when it loads and frees this DLL for each process that accesses */
67/* this DLL. However, it only gets called the first time the DLL is loaded */
68/* and the last time it is freed for a particular process. The system */
69/* linkage convention MUST be used because the operating system loader is */
70/* calling this function. */
71/****************************************************************************/
72unsigned long SYSTEM _DLL_InitTerm(unsigned long hModule, unsigned long
73 ulFlag)
74{
75 size_t i;
76 APIRET rc;
77 ULONG sysinfo;
78
79 /*-------------------------------------------------------------------------*/
80 /* If ulFlag is zero then the DLL is being loaded so initialization should */
81 /* be performed. If ulFlag is 1 then the DLL is being freed so */
82 /* termination should be performed. */
83 /*-------------------------------------------------------------------------*/
84
85 switch (ulFlag)
86 {
87 case 0 :
88 loadNr = globLoadNr++;
89
90 dprintf(("kernel32 init\n"));
91 _ctordtorInit();
92
93 CheckVersionFromHMOD(PE2LX_VERSION, hModule); /*PLF Wed 98-03-18 05:28:48*/
94 /*******************************************************************/
95 /* A DosExitList routine must be used to clean up if runtime calls */
96 /* are required and the runtime is dynamically linked. */
97 /*******************************************************************/
98
99 rc = DosExitList(0x0000F000|EXLST_ADD, cleanup);
100 if (rc)
101 return 0UL;
102
103 /* knut: check for high memory support */
104 rc = DosQuerySysInfo(QSV_VIRTUALADDRESSLIMIT, QSV_VIRTUALADDRESSLIMIT, &sysinfo, sizeof(sysinfo));
105
106 if ( rc == 0 && sysinfo > 512 ) //VirtualAddresslimit is in MB
107 flAllocMem = PAG_ANY; // high memory support. Let's use it!
108 else flAllocMem = 0; // no high memory support
109
110 InitializeTIB(TRUE);
111 //SvL: Do it here instead of during the exe object creation
112 //(std handles can be used in win32 dll initialization routines
113 HMInitialize(); /* store standard handles within HandleManager */
114 break;
115 case 1 :
116 break;
117 default :
118 return 0UL;
119 }
120
121 /***********************************************************/
122 /* A non-zero value must be returned to indicate success. */
123 /***********************************************************/
124 return 1UL;
125}
126
127
128static void APIENTRY cleanup(ULONG ulReason)
129{
130 dprintf(("kernel32 exit %d\n", ulReason));
131 WriteOutProfiles();
132 DestroyTIB();
133 //NOTE: Must be done after DestroyTIB
134 CloseLogFile();
135 _ctordtorTerm();
136 DosExitList(EXLST_EXIT, cleanup);
137 return ;
138}
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