source: trunk/src/opengl/glut/initterm.cpp@ 2689

Last change on this file since 2689 was 2689, checked in by jeroen, 26 years ago

* empty log message *
File size: 4.1 KB
Line 
1/* $Id: initterm.cpp,v 1.2 2000-02-09 08:46:20 jeroen Exp $ */
2
3/*
4 * 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_DOSPROCESS
29#include <os2wrap.h> /* Odin32 OS/2 api wrappers */
30#include <stdlib.h>
31#include <stdio.h>
32#include <string.h>
33#include <odin.h>
34#include <win32type.h>
35#include <odinlx.h>
36#include <misc.h> /* PLF Wed 98-03-18 23:18:15 */
37
38extern "C" {
39void CDECL _ctordtorInit( void );
40void CDECL _ctordtorTerm( void );
41}
42
43BOOL WINAPI Glut32LibMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID ImpLoad);
44
45/*-------------------------------------------------------------------*/
46/* A clean up routine registered with DosExitList must be used if */
47/* runtime calls are required and the runtime is dynamically linked. */
48/* This will guarantee that this clean up routine is run before the */
49/* library DLL is terminated. */
50/*-------------------------------------------------------------------*/
51static void APIENTRY cleanup(ULONG reason);
52
53/****************************************************************************/
54/* _DLL_InitTerm is the function that gets called by the operating system */
55/* loader when it loads and frees this DLL for each process that accesses */
56/* this DLL. However, it only gets called the first time the DLL is loaded */
57/* and the last time it is freed for a particular process. The system */
58/* linkage convention MUST be used because the operating system loader is */
59/* calling this function. */
60/****************************************************************************/
61unsigned long SYSTEM _DLL_InitTerm(unsigned long hModule, unsigned long
62 ulFlag)
63{
64 size_t i;
65 APIRET rc;
66
67 /*-------------------------------------------------------------------------*/
68 /* If ulFlag is zero then the DLL is being loaded so initialization should */
69 /* be performed. If ulFlag is 1 then the DLL is being freed so */
70 /* termination should be performed. */
71 /*-------------------------------------------------------------------------*/
72
73 switch (ulFlag) {
74 case 0 :
75 _ctordtorInit();
76
77 CheckVersionFromHMOD(PE2LX_VERSION, hModule);/* PLF Wed 98-03-18 05:28:48*/
78
79 /*******************************************************************/
80 /* A DosExitList routine must be used to clean up if runtime calls */
81 /* are required and the runtime is dynamically linked. */
82 /*******************************************************************/
83
84 if(RegisterLxDll(hModule, Glut32LibMain, 0) == FALSE)
85 return 0UL;
86
87 rc = DosExitList(0x000F0000|EXLST_ADD, cleanup);
88 if(rc)
89 return 0UL;
90 break;
91
92 case 1 :
93 UnregisterLxDll(hModule);
94 break;
95
96 default :
97 return 0UL;
98 }
99
100 /***********************************************************/
101 /* A non-zero value must be returned to indicate success. */
102 /***********************************************************/
103 return 1UL;
104}
105
106
107static void APIENTRY cleanup(ULONG ulReason)
108{
109 _ctordtorTerm();
110
111 DosExitList(EXLST_EXIT, cleanup);
112
113 return ;
114}
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