| 1 | /* $Id: dllentry.cpp,v 1.3 2000-12-16 23:31:07 bird Exp $ */
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| 2 |
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| 3 | /*
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| 4 | * DLL entry point
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| 5 | *
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| 6 | * Copyright 1998 Sander van Leeuwen
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| 7 | * Copyright 1998 Peter Fitzsimmons
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| 8 | *
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| 9 | *
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| 10 | * Project Odin Software License can be found in LICENSE.TXT
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| 11 | *
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| 12 | */
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| 13 |
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| 14 | /*-------------------------------------------------------------*/
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| 15 | /* INITERM.C -- Source for a custom dynamic link library */
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| 16 | /* initialization and termination (_DLL_InitTerm) */
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| 17 | /* function. */
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| 18 | /* */
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| 19 | /* When called to perform initialization, this sample function */
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| 20 | /* gets storage for an array of integers, and initializes its */
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| 21 | /* elements with random integers. At termination time, it */
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| 22 | /* frees the array. Substitute your own special processing. */
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| 23 | /*-------------------------------------------------------------*/
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| 24 |
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| 25 |
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| 26 | /* Include files */
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| 27 | #define INCL_DOSMODULEMGR
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| 28 | #define INCL_DOSPROCESS
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| 29 | #include <os2wrap.h> //Odin32 OS/2 api wrappers
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| 30 | #include <stdlib.h>
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| 31 | #include <stdio.h>
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| 32 | #include <string.h>
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| 33 | #include <odin.h>
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| 34 | #include <win32type.h>
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| 35 | #include <winconst.h>
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| 36 | #include <odinlx.h>
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| 37 | #include <misc.h> /*PLF Wed 98-03-18 23:18:15*/
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| 38 |
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| 39 |
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| 40 | extern "C" {
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| 41 | #ifdef __IBMCPP__
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| 42 | void CDECL _ctordtorInit( void );
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| 43 | void CDECL _ctordtorTerm( void );
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| 44 | #endif
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| 45 | //Win32 resource table (produced by wrc)
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| 46 | extern DWORD _Resource_PEResTab;
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| 47 | }
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| 48 |
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| 49 | static HMODULE dllHandle = 0;
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| 50 |
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| 51 | //******************************************************************************
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| 52 | //******************************************************************************
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| 53 | BOOL WINAPI LibMain(HINSTANCE hinstDLL, DWORD fdwReason, LPVOID fImpLoad)
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| 54 | {
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| 55 | switch (fdwReason)
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| 56 | {
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| 57 | case DLL_PROCESS_ATTACH:
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| 58 | return TRUE;
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| 59 |
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| 60 | case DLL_THREAD_ATTACH:
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| 61 | case DLL_THREAD_DETACH:
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| 62 | return TRUE;
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| 63 |
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| 64 | case DLL_PROCESS_DETACH:
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| 65 | #ifdef __IBMCPP__
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| 66 | _ctordtorTerm();
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| 67 | #endif
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| 68 | return TRUE;
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| 69 | }
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| 70 | return FALSE;
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| 71 | }
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| 72 |
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| 73 |
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| 74 | #ifdef __IBMCPP__
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| 75 |
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| 76 | /****************************************************************************/
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| 77 | /* _DLL_InitTerm is the function that gets called by the operating system */
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| 78 | /* loader when it loads and frees this DLL for each process that accesses */
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| 79 | /* this DLL. However, it only gets called the first time the DLL is loaded */
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| 80 | /* and the last time it is freed for a particular process. The system */
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| 81 | /* linkage convention MUST be used because the operating system loader is */
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| 82 | /* calling this function. */
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| 83 | /****************************************************************************/
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| 84 | unsigned long SYSTEM _DLL_InitTerm(unsigned long hModule, unsigned long ulFlag)
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| 85 | {
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| 86 | /*-------------------------------------------------------------------------*/
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| 87 | /* If ulFlag is zero then the DLL is being loaded so initialization should */
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| 88 | /* be performed. If ulFlag is 1 then the DLL is being freed so */
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| 89 | /* termination should be performed. */
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| 90 | /*-------------------------------------------------------------------------*/
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| 91 |
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| 92 | switch (ulFlag)
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| 93 | {
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| 94 | case 0:
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| 95 | _ctordtorInit();
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| 96 | CheckVersionFromHMOD(PE2LX_VERSION, hModule); /*PLF Wed 98-03-18 05:28:48*/
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| 97 | dllHandle = RegisterLxDll(hModule, LibMain, (PVOID)&_Resource_PEResTab);
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| 98 | if (dllHandle == 0)
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| 99 | return 0UL;
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| 100 | break;
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| 101 |
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| 102 | case 1:
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| 103 | if (dllHandle)
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| 104 | UnregisterLxDll(dllHandle);
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| 105 | break;
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| 106 |
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| 107 | default:
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| 108 | return 0UL;
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| 109 | }
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| 110 |
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| 111 | /***********************************************************/
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| 112 | /* A non-zero value must be returned to indicate success. */
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| 113 | /***********************************************************/
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| 114 | return 1UL;
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| 115 | }
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| 116 | #elif defined(__WATCOM_CPLUSPLUS__)
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| 117 | /*
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| 118 | * Watcom dll init and term routines.
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| 119 | */
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| 120 |
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| 121 | int __dll_initialize(unsigned long hModule, unsigned long ulFlag)
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| 122 | {
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| 123 | CheckVersionFromHMOD(PE2LX_VERSION, hModule);
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| 124 | dllHandle = RegisterLxDll(hModule, LibMain, (PVOID)&_Resource_PEResTab);
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| 125 | if (dllHandle == 0)
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| 126 | return 0;
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| 127 | return 1;
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| 128 | }
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| 129 |
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| 130 | int __dll_terminate(unsigned long hModule, unsigned long ulFlag)
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| 131 | {
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| 132 | if (dllHandle)
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| 133 | UnregisterLxDll(dllHandle);
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| 134 | return 1;
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| 135 | }
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| 136 |
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| 137 | #else
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| 138 | #error message("compiler is not supported!\n");
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| 139 | #endif
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