source: trunk/src/opengl/initterm.cpp@ 2595

Last change on this file since 2595 was 2595, checked in by sandervl, 26 years ago

JvdH:Ported SGI GLUT sources + Opengl update
File size: 4.1 KB
Line 
1/* $Id: initterm.cpp,v 1.2 2000-02-01 19:41:55 sandervl 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
38#include "initterm.h"
39
40extern "C" {
41void CDECL _ctordtorInit( void );
42void CDECL _ctordtorTerm( void );
43}
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/****************************************************************************/
55/* _DLL_InitTerm is the function that gets called by the operating system */
56/* loader when it loads and frees this DLL for each process that accesses */
57/* this DLL. However, it only gets called the first time the DLL is loaded */
58/* and the last time it is freed for a particular process. The system */
59/* linkage convention MUST be used because the operating system loader is */
60/* calling this function. */
61/****************************************************************************/
62unsigned long SYSTEM _DLL_InitTerm(unsigned long hModule, unsigned long
63 ulFlag)
64{
65 size_t i;
66 APIRET rc;
67
68 /*-------------------------------------------------------------------------*/
69 /* If ulFlag is zero then the DLL is being loaded so initialization should */
70 /* be performed. If ulFlag is 1 then the DLL is being freed so */
71 /* termination should be performed. */
72 /*-------------------------------------------------------------------------*/
73
74 switch (ulFlag) {
75 case 0 :
76 _ctordtorInit();
77
78 CheckVersionFromHMOD(PE2LX_VERSION, hModule);/* PLF Wed 98-03-18 05:28:48*/
79
80 /*******************************************************************/
81 /* A DosExitList routine must be used to clean up if runtime calls */
82 /* are required and the runtime is dynamically linked. */
83 /*******************************************************************/
84
85 if(RegisterLxDll(hModule, 0, 0) == FALSE)
86 return 0UL;
87
88 rc = DosExitList(0x0000F000|EXLST_ADD, cleanup);
89 if(rc)
90 return 0UL;
91
92 mod_init();
93 break;
94
95 case 1 :
96 UnregisterLxDll(hModule);
97 break;
98
99 default :
100 return 0UL;
101 }
102
103 /***********************************************************/
104 /* A non-zero value must be returned to indicate success. */
105 /***********************************************************/
106 return 1UL;
107}
108
109
110static void APIENTRY cleanup(ULONG ulReason)
111{
112 mod_cleanup();
113
114 _ctordtorTerm();
115
116 DosExitList(EXLST_EXIT, cleanup);
117
118 return ;
119}
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