The Developer Connection - Device Driver Kit for OS/2 3

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File List | 1994-02-27 | 44.6 KB | 389 lines

OS2THRD.C 02/27/94 14:56:07 Page 1 * * * * * P R O L O G * * * * * Compiler . . . . . . . . . . . . : IBM C/C++ Tools V2.0 Command options: Compiler mode . . . . . . . . : C Program name. . . . . . . . . : OS2THRD.C Assemble name . . . . . . . . : "os2thrd.asm" Object name . . . . . . . . . : "os2thrd.obj" Listing name. . . . . . . . . : os2thrd.lst Compiler options. . . . . . . : /C+ /Fa+ /Fc- /Fd- /Fi- /Fl- /Fm- /Fo+ /Fw- /Gd- /Ge+ /Gf- /Gh- /Gi- /Gm- /Gn- /Gr+ /Gs- : /Gt- /Gu- /Gv- /Gw- /J+ /L- /La- /Lb- /Le- /Lf- /Li- /Lj- /Ls+ /Lx- /Ly- /O- /Ol- /Om- : /Op+ /Os- /P- /Pc- /Pd- /Pe- /Q+ /Sd- /Sh- /Si- /Sm- /Sn- /Sr- /Ss+ /Sv- /Ti- /Tm- /Tx- : /Xi- : /Wcls- /Wcmp- /Wcnd- /Wcns- /Wcnv- /Wcpy- /Wdcl- /Weff- /Wenu- /Wext- /Wgen- /Wgnr- /Wgot- : /Wini- /Wlan- /Wobs- /Word- /Wpar- /Wpor- /Wppc- /Wppt- /Wpro- /Wrea- /Wret- /Wtrd- /Wtru- : /Wund- /Wuni- /Wuse- /Wvft- : /Mp /Rn /Se /Sp1 /G3 /W3 /H255 /Lp66 /Sg- /Sq- /N /Oi0 /Su- /Tl10 : /DM_I386=1 : /I : /Lt : /Lu : /B : /V OS2THRD.C 02/27/94 14:56:07 Page 2 * * * * * S O U R C E * * * * * LINE STMT SEQNBR INCNO *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8....+....9.......* 1 |/******************************************************************************/ | 1 2 |/* The following code fragments were published as part of */ | 2 3 |/* The Developer Connection News Volume II */ | 3 4 |/* */ | 4 5 |/* COPYRIGHT: */ | 5 6 |/* ---------- */ | 6 7 |/* Copyright (C) International Business Machines Corp., 1993. */ | 7 8 |/* */ | 8 9 |/* DISCLAIMER OF WARRANTIES: */ | 9 10 |/* ------------------------- */ | 10 11 |/* The following [enclosed] code is sample code created by IBM */ | 11 12 |/* Corporation. This sample code is not part of any standard IBM product */ | 12 13 |/* and is provided to you solely for the purpose of assisting you in the */ | 13 14 |/* development of your applications. The code is provided "AS IS", */ | 14 15 |/* without warranty of any kind. IBM shall not be liable for any damages */ | 15 16 |/* arising out of your use of the sample code, even if they have been */ | 16 17 |/* advised of the possibility of such damages. */ | 17 18 |/* */ | 18 19 |/******************************************************************************/ | 19 20 | | 20 21 | | 21 22 |#define INCL_DOSMVDM | 22 23 |#define INCL_BASE | 23 24 |#include <os2.h> | 24 25 |#include <stdlib.h> | 25 26 |#include <string.h> | 26 27 |#include "sty_main.h" | 27 28 |#include "sty_xtrn.h" | 28 29 |#include "sty_dlg.h" | 29 30 |#include "common.h" | 30 31 | | 31 32 | | 32 33 |/* | 33 34 | *Any data types that are private to this module | 34 35 | */ | 35 36 | | 36 37 | | 37 38 |/* | 38 39 | *any data declarations that are private to this module | 39 40 | */ | 40 41 |ULONG HandleToVDD; | 41 42 |MESSAGEBUFFER MessageBuffer; | 42 43 | | 43 44 |/****************************************************************************/ | 44 45 |/*The following code fragments were enclosed due to erros in The Developer */ | 45 46 |/*Connection News that we were not able to correct before press time. */ | 46 47 |/*The following routines will be expanded and incoporated into the final */ | 47 48 |/*release of the source code that will be released in a future release of */ | 48 49 |/*The Developer Connection News - David Kenner */ | 49 50 |/****************************************************************************/ | 50 51 |/****************************************************************************/ | 51 52 |/*OpenVirtQueue */ | 52 53 |/* */ | 53 54 |/* */ | 54 55 |/*A service routine that will allow us to do our initilization with the vdd */ | 55 56 |/****************************************************************************/ | 56 57 |APIRET OpenVirtQueue(VOID) | 57 58 |{ | 58 59 | APIRET apiRet; | 59 60 | | 60 61 | /* | 61 OS2THRD.C 02/27/94 14:56:07 Page 3 * * * * * S O U R C E * * * * * LINE STMT SEQNBR INCNO *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8....+....9.......* 62 | *see if our Vdd is alive and if so get | 62 63 | *a handle that we may use later | 63 64 | */ | 64 65 1 | if(apiRet = DosOpenVDD(VDDNAME,&HandleToVDD) ) | 65 66 | { | 66 67 2 | return(apiRet); | 67 68 | } | 68 69 | | 69 70 | /* | 70 71 | *Call into our Vdd so we perform any initialization | 71 72 | *we need to do at this time. | 72 73 | */ | 73 74 | if(apiRet = DosRequestVDD(HandleToVDD, | 74 75 | 0, | 75 76 | INIT_COMMAND, | 76 77 | 0, | 77 78 | NULL, | 78 79 | 0, | 79 80 3 | NULL) ) | 80 81 | { | 81 82 4 | return(apiRet); | 82 83 | } | 83 84 5 | return(apiRet); | 84 85 |} | 85 86 |/****************************************************************************/ | 86 87 |/*WriteVirtQueue */ | 87 88 |/* */ | 88 89 |/* */ | 89 90 |/*A service routine that will allow us to send our message data to the vdd */ | 90 91 |/* */ | 91 92 |/* */ | 92 93 |/* */ | 93 94 |/****************************************************************************/ | 94 95 | | 95 96 |APIRET WriteVirtQueue(PVOID pvMessageToSend, | 96 97 | ULONG ulCount, | 97 98 | SGID SessionId) | 98 99 |{ | 99 100 | APIRET apiRet; | 100 101 | | 101 102 | if(apiRet = DosRequestVDD(HandleToVDD, | 102 103 | SessionId, | 103 104 | POST_MESSAGE, | 104 105 | ulCount, | 105 106 | pvMessageToSend, | 106 107 | 0, | 107 108 6 | NULL) ) | 108 109 | { | 109 110 7 | return(apiRet); | 110 111 | } | 111 112 8 | return(apiRet); | 112 113 |} | 113 114 | | 114 115 |/****************************************************************************/ | 115 116 |/*ReadVirtQueue */ | 116 117 |/* */ | 117 118 |/* */ | 118 119 |/*This routine is set up as separate thread that will read messages,process */ | 119 120 |/*them,and then continue to block until additional messages come in.The */ | 120 121 |/*block mechansim is accomplished through the semaphore in our VDD */ | 121 122 |/* */ | 122 OS2THRD.C 02/27/94 14:56:07 Page 4 * * * * * S O U R C E * * * * * LINE STMT SEQNBR INCNO *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8....+....9.......* 123 |/*Note: */ | 123 124 |/*There is no error return. All error messages are handled before the */ | 124 125 |/*thread terminates */ | 125 126 |/* */ | 126 127 |/****************************************************************************/ | 127 128 |VOID ReadVirtQueue(VOID) | 128 129 |{ | 129 130 | APIRET apiRet; | 130 131 | PVOID pvMessage; | 131 132 | CHAR CommandToSend[SIZ_COMMAND_BUF]; | 132 133 | | 133 134 | | 134 135 | | 135 136 9 | do | 136 137 | { | 137 138 | /* | 138 139 | *block until we get any message | 139 140 | *data | 140 141 | */ | 141 142 | if(apiRet = DosRequestVDD(HandleToVDD, | 142 143 | 0, | 143 144 | READ_QUEUE, | 144 145 | strlen(CommandToSend), | 145 146 | CommandToSend, | 146 147 | sizeof(MessageBuffer), | 147 148 10 | &MessageBuffer) ) | 148 149 | { | 149 150 11 | break; | 150 151 | } | 151 152 | /* | 152 153 | *do all of our message processing | 153 154 | */ | 154 155 12 | apiRet = ProcessMessageData(MessageBuffer); | 155 156 | | 156 157 13 | }while(!apiRet); | 157 158 | /* | 158 159 | *handle any error that was encountered | 159 160 | *during our polling | 160 161 | */ | 161 162 | | 162 163 | | 163 164 | /* | 164 165 | *do any other clean up we need to do | 165 166 | *and get out | 166 167 | */ | 167 168 | | 168 169 14 | _endthread(); | 169 170 |} | 170 171 | | 171 172 |/****************************************************************************/ | 172 173 |/*Provide a stub to keep the linker from complaining */ | 173 174 |/* */ | 174 175 |/* */ | 175 176 |/*This is currently just a stub routine */ | 176 177 |/****************************************************************************/ | 177 178 |#if 0 | 178 179 |INT main(void) | 179 180 |{ | 180 181 | APIRET apiRet; | 181 182 | | 182 183 | | 183 OS2THRD.C 02/27/94 14:56:07 Page 5 * * * * * S O U R C E * * * * * LINE STMT SEQNBR INCNO *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8....+....9.......* 184 | do | 184 185 | { | 185 186 | | 186 187 | if(OpenVirtQueue() ) | 187 188 | { | 188 189 | break; | 189 190 | } | 190 191 | /* | 191 192 | *start off our read thread | 192 193 | */ | 193 194 | apiRet = StartReadThread(); | 194 195 | | 195 196 | }ONCE; | 196 197 | return(0); | 197 198 | | 198 199 |} | 199 200 |#endif | 200 201 | | 201 202 |/****************************************************************************/ | 202 203 |/*Process any message data we get from our vdd */ | 203 204 |/* */ | 204 205 |/* */ | 205 206 |/*This is currently just a stub routine */ | 206 207 |/****************************************************************************/ | 207 208 |APIRET ProcessMessageData(MESSAGEBUFFER MessageBuffer) | 208 209 |{ | 209 210 | | 210 211 | APIRET apiRet; | 211 212 | | 212 213 15 | do | 213 214 | { | 214 215 | | 215 216 | | 216 217 | | 217 218 16 | }ONCE; | 218 219 17 | return(apiRet); | 219 220 |} | 220 221 |/****************************************************************\ | 221 222 | * | 222 223 | *-------------------------------------------------------------- | 223 224 | * | 224 225 | * Name: | 225 226 | * | 226 227 | * Purpose: | 227 228 | * | 228 229 | * | 229 230 | * | 230 231 | * Usage: | 231 232 | * | 232 233 | * Method: | 233 234 | * - | 234 235 | * | 235 236 | * - | 236 237 | * - | 237 238 | * | 238 239 | * - | 239 240 | * - | 240 241 | * | 241 242 | * Returns: | 242 243 | * 1 - if sucessful execution completed | 243 244 | * 0 - if error | 244 OS2THRD.C 02/27/94 14:56:07 Page 6 * * * * * S O U R C E * * * * * LINE STMT SEQNBR INCNO *...+....1....+....2....+....3....+....4....+....5....+....6....+....7....+....8....+....9.......* 245 |\****************************************************************/ | 245 246 |APIRET StartReadThread(VOID) | 246 247 |{ | 247 248 | APIRET ApiRet; | 248 249 | | 249 250 | | 250 251 | if( (ApiRet = _beginthread(ReadVirtQueue, | 251 252 | NULL, | 252 253 | 8192, | 253 254 18 | NULL)) == -1) | 254 255 | { | 255 256 19 | return(TRUE); | 256 257 | } | 257 258 | | 258 259 | | 259 260 20 | return(FALSE); | 260 261 |} | 261 262 | | 262 263 |/****************************************************************************/ | 263 264 |/****************************************************************************/ | 264 265 |/*OpenVirtQueue */ | 265 266 |/* */ | 266 267 |/* */ | 267 268 |/*A service routine that will allow us to do our initilization with the vdd */ | 268 269 |/****************************************************************************/ | 269 270 |APIRET CloseVirtQueue(VOID) | 270 271 |{ | 271 272 | APIRET apiRet; | 272 273 | | 273 274 | /* | 274 275 | *Call into our Vdd so we perform any initialization | 275 276 | *we need to do at this time. | 276 277 | */ | 277 278 | if(apiRet = DosRequestVDD(HandleToVDD, | 278 279 | 0, | 279 280 | TERMINATE_COMMAND, | 280 281 | 0, | 281 282 | NULL, | 282 283 | 0, | 283 284 21 | NULL) ) | 284 285 | { | 285 286 22 | return(apiRet); | 286 287 | } | 287 288 23 | return(apiRet); | 288 289 |} | 289 290 | | 290 291 | | 291 292 | | 292 293 | | 293 294 | | 294 295 | | 295 296 | | 296 297 | | 297 298 | | 298 299 | | 299 * * * * * E N D O F S O U R C E * * * * * OS2THRD.C 02/27/94 14:56:07 Page 7 * * * * * I N C L U D E S * * * * * INCLUDE FILES --- FILE# NAME 1 F:\TOOLKT21\C\OS2H\OS2.H 2 F:\TOOLKT21\C\OS2H\OS2DEF.H 3 F:\TOOLKT21\C\OS2H\BSE.H 4 F:\TOOLKT21\C\OS2H\BSEDOS.H 5 F:\TOOLKT21\C\OS2H\BSETIB.H 6 F:\TOOLKT21\C\OS2H\BSEMEMF.H 7 F:\TOOLKT21\C\OS2H\BSEXCPT.H 8 F:\TOOLKT21\C\OS2H\BSESUB.H 9 F:\TOOLKT21\C\OS2H\BSEERR.H 10 F:\TOOLKT21\C\OS2H\PM.H 11 F:\TOOLKT21\C\OS2H\PMWIN.H 12 F:\TOOLKT21\C\OS2H\PMSHL.H 13 F:\TOOLKT21\C\OS2H\PMGPI.H 14 F:\TOOLKT21\C\OS2H\PMDEV.H 15 F:\TOOLKT21\C\OS2H\PMWP.H 16 F:\TOOLKT21\C\OS2H\PMERR.H 17 F:\TOOLKT21\C\OS2H\PMSTDDLG.H 18 G:\IBMCPP\INCLUDE\STDLIB.H 19 G:\IBMCPP\INCLUDE\STRING.H 20 G:\IBMCPP\SRC\STY_MAIN.H 21 G:\IBMCPP\SRC\STY_XTRN.H 22 G:\IBMCPP\SRC\STY_DLG.H 23 G:\IBMCPP\SRC\COMMON.H * * * * * E N D O F I N C L U D E S * * * * * OS2THRD.C 02/27/94 14:56:07 Page 8 * * * * * M E S S A G E S U M M A R Y * * * * * Total Informational(00) Warning(10) Error(30) Severe Error(40) 0 0 0 0 0 * * * * * E N D O F M E S S A G E S U M M A R Y * * * * * * * * * * E N D O F C O M P I L A T I O N * * * * *