source: trunk/src/odinprof/initterm.cpp@ 10367

Last change on this file since 10367 was 7421, checked in by phaller, 24 years ago

Added ODIN profiler employing the VAC308 generated profiler hooks
File size: 5.2 KB
Line 
1/*
2 * DLL entry point
3 *
4 * Copyright 1998 Sander van Leeuwen
5 * Copyright 1998 Peter Fitzsimmons
6 *
7 *
8 * Project Odin Software License can be found in LICENSE.TXT
9 *
10 */
11
12/*-------------------------------------------------------------*/
13/* INITERM.C -- Source for a custom dynamic link library */
14/* initialization and termination (_DLL_InitTerm) */
15/* function. */
16/* */
17/* When called to perform initialization, this sample function */
18/* gets storage for an array of integers, and initializes its */
19/* elements with random integers. At termination time, it */
20/* frees the array. Substitute your own special processing. */
21/*-------------------------------------------------------------*/
22
23
24/* Include files */
25#define INCL_DOSMODULEMGR
26#define INCL_DOSPROCESS
27#define INCL_DOSERRORS
28#include <os2wrap.h> //Odin32 OS/2 api wrappers
29#include <stdlib.h>
30#include <stdio.h>
31#include <string.h>
32#include <odin.h>
33#include <misc.h> /*PLF Wed 98-03-18 23:18:15*/
34#include <exitlist.h>
35#include <initdll.h>
36
37#ifdef __IBMCPP__
38extern "C" {
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);
47}
48
49/****************************************************************************/
50/* _DLL_InitTerm is the function that gets called by the operating system */
51/* loader when it loads and frees this DLL for each process that accesses */
52/* this DLL. However, it only gets called the first time the DLL is loaded */
53/* and the last time it is freed for a particular process. The system */
54/* linkage convention MUST be used because the operating system loader is */
55/* calling this function. */
56/****************************************************************************/
57unsigned long SYSTEM _DLL_InitTerm(unsigned long hModule, unsigned long
58 ulFlag)
59{
60 APIRET rc;
61
62 /*-------------------------------------------------------------------------*/
63 /* If ulFlag is zero then the DLL is being loaded so initialization should */
64 /* be performed. If ulFlag is 1 then the DLL is being freed so */
65 /* termination should be performed. */
66 /*-------------------------------------------------------------------------*/
67
68 switch (ulFlag) {
69 case 0 :
70
71 /*******************************************************************/
72 /* The C run-time environment initialization function must be */
73 /* called before any calls to C run-time functions that are not */
74 /* inlined. */
75 /*******************************************************************/
76
77 if (_CRT_init() == -1)
78 return 0UL;
79 ctordtorInit();
80
81 /*******************************************************************/
82 /* A DosExitList routine must be used to clean up if runtime calls */
83 /* are required and the runtime is dynamically linked. */
84 /*******************************************************************/
85
86 rc = DosExitList(EXITLIST_ODINPROF|EXLST_ADD, cleanup);
87 if(rc)
88 return 0UL;
89 #if 1 /*
90 * Experimental console hack. Sets apptype to PM anyhow.
91 * First Dll to be initiated should now allways be OdinCrt!
92 * So include odincrt first!
93 */
94 PPIB pPIB;
95 PTIB pTIB;
96 rc = DosGetInfoBlocks(&pTIB, &pPIB);
97 if (rc != NO_ERROR)
98 return 0UL;
99 pPIB->pib_ultype = 3;
100 #endif
101 break;
102 case 1 :
103 break;
104 default :
105 return 0UL;
106 }
107
108 /***********************************************************/
109 /* A non-zero value must be returned to indicate success. */
110 /***********************************************************/
111 return 1UL;
112}
113
114
115static void APIENTRY cleanup(ULONG ulReason)
116{
117 ctordtorTerm();
118 _CRT_term();
119 DosExitList(EXLST_EXIT, cleanup);
120 return ;
121}
122
123#elif defined(__WATCOM_CPLUSPLUS__)
124
125/*
126 * Watcom dll init and term routines.
127 */
128
129int __dll_initialize(unsigned long hModule, unsigned long ulFlag)
130{
131 APIRET rc;
132 #if 1 /*
133 * Experimental console hack. Sets apptype to PM anyhow.
134 * First Dll to be initiated should now allways be OdinCrt!
135 * So include odincrt first!
136 */
137 PPIB pPIB;
138 PTIB pTIB;
139 rc = DosGetInfoBlocks(&pTIB, &pPIB);
140 if (rc != NO_ERROR)
141 return 0UL;
142 pPIB->pib_ultype = 3;
143 #endif
144 return 1;
145}
146
147int __dll_terminate(unsigned long hModule, unsigned long ulFlag)
148{
149 return 1;
150}
151
152#else
153#error message("compiler is not supported");
154#endif
155
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