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| 760ac839 |
1 | #include "EXTERN.h" |
| 2 | #include "perl.h" |
| 3 | #include "XSUB.h" |
| 4 | |
| 5 | #define INCL_BASE |
| 6 | #define INCL_REXXSAA |
| 7 | #include <os2emx.h> |
| 8 | |
| 9 | #if 0 |
| 10 | #define INCL_REXXSAA |
| 11 | #pragma pack(1) |
| 12 | #define _Packed |
| 13 | #include <rexxsaa.h> |
| 14 | #pragma pack() |
| 15 | #endif |
| 16 | |
| 17 | extern ULONG _emx_exception ( EXCEPTIONREPORTRECORD *, |
| 18 | EXCEPTIONREGISTRATIONRECORD *, |
| 19 | CONTEXTRECORD *, |
| 20 | void *); |
| 21 | |
| 22 | static RXSTRING * strs; |
| 23 | static int nstrs; |
| 24 | static SHVBLOCK * vars; |
| 25 | static int nvars; |
| 26 | static char * trace; |
| 27 | |
| 28 | static RXSTRING rxcommand = { 9, "RXCOMMAND" }; |
| 29 | static RXSTRING rxsubroutine = { 12, "RXSUBROUTINE" }; |
| 30 | static RXSTRING rxfunction = { 11, "RXFUNCTION" }; |
| 31 | |
| 46e87256 |
32 | static ULONG PERLCALL(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret); |
| 760ac839 |
33 | |
| 34 | #if 1 |
| 35 | #define Set RXSHV_SET |
| 36 | #define Fetch RXSHV_FETCH |
| 37 | #define Drop RXSHV_DROPV |
| 38 | #else |
| 39 | #define Set RXSHV_SYSET |
| 40 | #define Fetch RXSHV_SYFET |
| 41 | #define Drop RXSHV_SYDRO |
| 42 | #endif |
| 43 | |
| 44 | static long incompartment; |
| 45 | |
| 46 | static SV* |
| 41cd3736 |
47 | exec_in_REXX(pTHX_ char *cmd, char * handlerName, RexxFunctionHandler *handler) |
| 760ac839 |
48 | { |
| 49 | HMODULE hRexx, hRexxAPI; |
| 50 | BYTE buf[200]; |
| 51 | LONG APIENTRY (*pRexxStart) (LONG, PRXSTRING, PSZ, PRXSTRING, |
| 52 | PSZ, LONG, PRXSYSEXIT, PSHORT, PRXSTRING); |
| 53 | APIRET APIENTRY (*pRexxRegisterFunctionExe) (PSZ, |
| 54 | RexxFunctionHandler *); |
| 55 | APIRET APIENTRY (*pRexxDeregisterFunction) (PSZ); |
| 56 | RXSTRING args[1]; |
| 57 | RXSTRING inst[2]; |
| 58 | RXSTRING result; |
| 59 | USHORT retcode; |
| 60 | LONG rc; |
| 61 | SV *res; |
| 62 | |
| 41cd3736 |
63 | if (incompartment) |
| 64 | Perl_die(aTHX_ "Attempt to reenter into REXX compartment"); |
| 760ac839 |
65 | incompartment = 1; |
| 66 | |
| 67 | if (DosLoadModule(buf, sizeof buf, "REXX", &hRexx) |
| 68 | || DosLoadModule(buf, sizeof buf, "REXXAPI", &hRexxAPI) |
| 69 | || DosQueryProcAddr(hRexx, 0, "RexxStart", (PFN *)&pRexxStart) |
| 70 | || DosQueryProcAddr(hRexxAPI, 0, "RexxRegisterFunctionExe", |
| 71 | (PFN *)&pRexxRegisterFunctionExe) |
| 72 | || DosQueryProcAddr(hRexxAPI, 0, "RexxDeregisterFunction", |
| 73 | (PFN *)&pRexxDeregisterFunction)) { |
| 41cd3736 |
74 | Perl_die(aTHX_ "REXX not available\n"); |
| 760ac839 |
75 | } |
| 76 | |
| 77 | if (handlerName) |
| 78 | pRexxRegisterFunctionExe(handlerName, handler); |
| 79 | |
| 80 | MAKERXSTRING(args[0], NULL, 0); |
| 81 | MAKERXSTRING(inst[0], cmd, strlen(cmd)); |
| 82 | MAKERXSTRING(inst[1], NULL, 0); |
| 83 | MAKERXSTRING(result, NULL, 0); |
| 84 | rc = pRexxStart(0, args, "StartPerl", inst, "Perl", RXSUBROUTINE, NULL, |
| 85 | &retcode, &result); |
| 86 | |
| 87 | incompartment = 0; |
| 88 | pRexxDeregisterFunction("StartPerl"); |
| 89 | DosFreeModule(hRexxAPI); |
| 90 | DosFreeModule(hRexx); |
| 91 | if (!RXNULLSTRING(result)) { |
| 92 | res = newSVpv(RXSTRPTR(result), RXSTRLEN(result)); |
| 93 | DosFreeMem(RXSTRPTR(result)); |
| 94 | } else { |
| 95 | res = NEWSV(729,0); |
| 96 | } |
| 6b88bc9c |
97 | if (rc || SvTRUE(GvSV(PL_errgv))) { |
| 98 | if (SvTRUE(GvSV(PL_errgv))) { |
| 2d8e6c8d |
99 | STRLEN n_a; |
| 41cd3736 |
100 | Perl_die(aTHX_ "Error inside perl function called from REXX compartment.\n%s", SvPV(GvSV(PL_errgv), n_a)) ; |
| 760ac839 |
101 | } |
| 41cd3736 |
102 | Perl_die(aTHX_ "REXX compartment returned non-zero status %li", rc); |
| 760ac839 |
103 | } |
| 104 | |
| 105 | return res; |
| 106 | } |
| 107 | |
| 108 | static SV* exec_cv; |
| 109 | |
| 110 | static ULONG |
| 46e87256 |
111 | PERLSTART(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret) |
| 760ac839 |
112 | { |
| 113 | return PERLCALL(NULL, argc, argv, queue, ret); |
| 114 | } |
| 115 | |
| 41cd3736 |
116 | #define in_rexx_compartment() exec_in_REXX(aTHX_ "return StartPerl()\r\n", \ |
| 760ac839 |
117 | "StartPerl", PERLSTART) |
| 118 | #define REXX_call(cv) ( exec_cv = (cv), in_rexx_compartment()) |
| 119 | #define REXX_eval_with(cmd,name,cv) ( exec_cv = (cv), \ |
| 41cd3736 |
120 | exec_in_REXX(aTHX_ cmd,name,PERLSTART)) |
| 760ac839 |
121 | #define REXX_eval(cmd) REXX_eval_with(cmd,NULL,NULL) |
| 122 | |
| 123 | static ULONG |
| 46e87256 |
124 | PERLCALL(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret) |
| 760ac839 |
125 | { |
| 41cd3736 |
126 | dTHX; |
| 760ac839 |
127 | EXCEPTIONREGISTRATIONRECORD xreg = { NULL, _emx_exception }; |
| 128 | int i, rc; |
| 129 | unsigned long len; |
| 130 | char *str; |
| 131 | char **arr; |
| 132 | dSP; |
| 133 | |
| 134 | DosSetExceptionHandler(&xreg); |
| 135 | |
| 136 | ENTER; |
| 137 | SAVETMPS; |
| 924508f0 |
138 | PUSHMARK(SP); |
| 760ac839 |
139 | |
| 140 | #if 0 |
| 141 | if (!my_perl) { |
| 142 | DosUnsetExceptionHandler(&xreg); |
| 143 | return 1; |
| 144 | } |
| 145 | #endif |
| 146 | |
| 147 | if (name) { |
| 148 | int ac = 0; |
| 149 | char **arr = alloca((argc + 1) * sizeof(char *)); |
| 150 | |
| 151 | for (i = 0; i < argc; ++i) |
| 152 | arr[ac++] = argv[i].strptr; |
| 153 | arr[ac] = NULL; |
| 154 | |
| 155 | rc = perl_call_argv(name, G_SCALAR | G_EVAL, arr); |
| 156 | } else if (exec_cv) { |
| 157 | SV *cv = exec_cv; |
| 158 | |
| 159 | exec_cv = NULL; |
| 160 | rc = perl_call_sv(cv, G_SCALAR | G_EVAL); |
| 161 | } else rc = -1; |
| 162 | |
| 163 | SPAGAIN; |
| 164 | |
| 165 | if (rc == 1 && SvOK(TOPs)) { |
| 166 | str = SvPVx(POPs, len); |
| 167 | if (len > 256) |
| 168 | if (DosAllocMem((PPVOID)&ret->strptr, len, PAG_READ|PAG_WRITE|PAG_COMMIT)) { |
| 169 | DosUnsetExceptionHandler(&xreg); |
| 170 | return 1; |
| 171 | } |
| 172 | memcpy(ret->strptr, str, len); |
| 173 | ret->strlength = len; |
| 174 | } |
| 175 | |
| 176 | PUTBACK ; |
| 177 | FREETMPS ; |
| 178 | LEAVE ; |
| 179 | |
| 180 | if (rc != 1) { |
| 181 | DosUnsetExceptionHandler(&xreg); |
| 182 | return 1; |
| 183 | } |
| 184 | |
| 185 | |
| 186 | DosUnsetExceptionHandler(&xreg); |
| 187 | return 0; |
| 188 | } |
| 189 | |
| 190 | static void |
| 191 | needstrs(int n) |
| 192 | { |
| 193 | if (n > nstrs) { |
| 194 | if (strs) |
| 195 | free(strs); |
| 196 | nstrs = 2 * n; |
| 197 | strs = malloc(nstrs * sizeof(RXSTRING)); |
| 198 | } |
| 199 | } |
| 200 | |
| 201 | static void |
| 202 | needvars(int n) |
| 203 | { |
| 204 | if (n > nvars) { |
| 205 | if (vars) |
| 206 | free(vars); |
| 207 | nvars = 2 * n; |
| 208 | vars = malloc(nvars * sizeof(SHVBLOCK)); |
| 209 | } |
| 210 | } |
| 211 | |
| 212 | static void |
| 213 | initialize(void) |
| 214 | { |
| 215 | needstrs(8); |
| 216 | needvars(8); |
| 217 | trace = getenv("PERL_REXX_DEBUG"); |
| 218 | } |
| 219 | |
| 220 | static int |
| 41cd3736 |
221 | constant(char *name, int arg) |
| 760ac839 |
222 | { |
| 223 | errno = EINVAL; |
| 224 | return 0; |
| 225 | } |
| 226 | |
| 227 | |
| 228 | MODULE = OS2::REXX PACKAGE = OS2::REXX |
| 229 | |
| 230 | BOOT: |
| 231 | initialize(); |
| 232 | |
| 233 | int |
| 234 | constant(name,arg) |
| 235 | char * name |
| 236 | int arg |
| 237 | |
| 760ac839 |
238 | int |
| 239 | _set(name,value,...) |
| 240 | char * name |
| 241 | char * value |
| 242 | CODE: |
| 243 | { |
| 244 | int i; |
| 245 | int n = (items + 1) / 2; |
| 246 | ULONG rc; |
| 247 | needvars(n); |
| 248 | if (trace) |
| 249 | fprintf(stderr, "REXXCALL::_set"); |
| 250 | for (i = 0; i < n; ++i) { |
| 251 | SHVBLOCK * var = &vars[i]; |
| 252 | STRLEN namelen; |
| 253 | STRLEN valuelen; |
| 254 | name = SvPV(ST(2*i+0),namelen); |
| 255 | if (2*i+1 < items) { |
| 256 | value = SvPV(ST(2*i+1),valuelen); |
| 257 | } |
| 258 | else { |
| 259 | value = ""; |
| 260 | valuelen = 0; |
| 261 | } |
| 262 | var->shvcode = RXSHV_SET; |
| 263 | var->shvnext = &vars[i+1]; |
| 264 | var->shvnamelen = namelen; |
| 265 | var->shvvaluelen = valuelen; |
| 266 | MAKERXSTRING(var->shvname, name, namelen); |
| 267 | MAKERXSTRING(var->shvvalue, value, valuelen); |
| 268 | if (trace) |
| 269 | fprintf(stderr, " %.*s='%.*s'", |
| 270 | var->shvname.strlength, var->shvname.strptr, |
| 271 | var->shvvalue.strlength, var->shvvalue.strptr); |
| 272 | } |
| 273 | if (trace) |
| 274 | fprintf(stderr, "\n"); |
| 275 | vars[n-1].shvnext = NULL; |
| 276 | rc = RexxVariablePool(vars); |
| 277 | if (trace) |
| 278 | fprintf(stderr, " rc=%X\n", rc); |
| 279 | RETVAL = (rc & ~RXSHV_NEWV) ? FALSE : TRUE; |
| 280 | } |
| 281 | OUTPUT: |
| 282 | RETVAL |
| 283 | |
| 284 | void |
| 285 | _fetch(name, ...) |
| 286 | char * name |
| 287 | PPCODE: |
| 288 | { |
| 289 | int i; |
| 290 | ULONG rc; |
| 924508f0 |
291 | EXTEND(SP, items); |
| 760ac839 |
292 | needvars(items); |
| 293 | if (trace) |
| 294 | fprintf(stderr, "REXXCALL::_fetch"); |
| 295 | for (i = 0; i < items; ++i) { |
| 296 | SHVBLOCK * var = &vars[i]; |
| 297 | STRLEN namelen; |
| 298 | name = SvPV(ST(i),namelen); |
| 299 | var->shvcode = RXSHV_FETCH; |
| 300 | var->shvnext = &vars[i+1]; |
| 301 | var->shvnamelen = namelen; |
| 302 | var->shvvaluelen = 0; |
| 303 | MAKERXSTRING(var->shvname, name, namelen); |
| 304 | MAKERXSTRING(var->shvvalue, NULL, 0); |
| 305 | if (trace) |
| 306 | fprintf(stderr, " '%s'", name); |
| 307 | } |
| 308 | if (trace) |
| 309 | fprintf(stderr, "\n"); |
| 310 | vars[items-1].shvnext = NULL; |
| 311 | rc = RexxVariablePool(vars); |
| 312 | if (!(rc & ~RXSHV_NEWV)) { |
| 313 | for (i = 0; i < items; ++i) { |
| 314 | int namelen; |
| 315 | SHVBLOCK * var = &vars[i]; |
| 316 | /* returned lengths appear to be swapped */ |
| 317 | /* but beware of "future bug fixes" */ |
| 318 | namelen = var->shvvalue.strlength; /* should be */ |
| 319 | if (var->shvvaluelen < var->shvvalue.strlength) |
| 320 | namelen = var->shvvaluelen; /* is */ |
| 321 | if (trace) |
| 322 | fprintf(stderr, " %.*s='%.*s'\n", |
| 323 | var->shvname.strlength, var->shvname.strptr, |
| 324 | namelen, var->shvvalue.strptr); |
| 325 | if (var->shvret & RXSHV_NEWV || !var->shvvalue.strptr) |
| 6b88bc9c |
326 | PUSHs(&PL_sv_undef); |
| 760ac839 |
327 | else |
| 328 | PUSHs(sv_2mortal(newSVpv(var->shvvalue.strptr, |
| 329 | namelen))); |
| 330 | } |
| 331 | } else { |
| 332 | if (trace) |
| 333 | fprintf(stderr, " rc=%X\n", rc); |
| 334 | } |
| 335 | } |
| 336 | |
| 337 | void |
| 338 | _next(stem) |
| 339 | char * stem |
| 340 | PPCODE: |
| 341 | { |
| 342 | SHVBLOCK sv; |
| 343 | BYTE name[4096]; |
| 344 | ULONG rc; |
| 345 | int len = strlen(stem), namelen, valuelen; |
| 346 | if (trace) |
| 347 | fprintf(stderr, "REXXCALL::_next stem='%s'\n", stem); |
| 348 | sv.shvcode = RXSHV_NEXTV; |
| 349 | sv.shvnext = NULL; |
| 350 | MAKERXSTRING(sv.shvvalue, NULL, 0); |
| 351 | do { |
| 352 | sv.shvnamelen = sizeof name; |
| 353 | sv.shvvaluelen = 0; |
| 354 | MAKERXSTRING(sv.shvname, name, sizeof name); |
| 355 | if (sv.shvvalue.strptr) { |
| 356 | DosFreeMem(sv.shvvalue.strptr); |
| 357 | MAKERXSTRING(sv.shvvalue, NULL, 0); |
| 358 | } |
| 359 | rc = RexxVariablePool(&sv); |
| 360 | } while (!rc && memcmp(stem, sv.shvname.strptr, len) != 0); |
| 361 | if (!rc) { |
| 924508f0 |
362 | EXTEND(SP, 2); |
| 760ac839 |
363 | /* returned lengths appear to be swapped */ |
| 364 | /* but beware of "future bug fixes" */ |
| 365 | namelen = sv.shvname.strlength; /* should be */ |
| 366 | if (sv.shvnamelen < sv.shvname.strlength) |
| 367 | namelen = sv.shvnamelen; /* is */ |
| 368 | valuelen = sv.shvvalue.strlength; /* should be */ |
| 369 | if (sv.shvvaluelen < sv.shvvalue.strlength) |
| 370 | valuelen = sv.shvvaluelen; /* is */ |
| 371 | if (trace) |
| 372 | fprintf(stderr, " %.*s='%.*s'\n", |
| 373 | namelen, sv.shvname.strptr, |
| 374 | valuelen, sv.shvvalue.strptr); |
| 375 | PUSHs(sv_2mortal(newSVpv(sv.shvname.strptr+len, namelen-len))); |
| 376 | if (sv.shvvalue.strptr) { |
| 377 | PUSHs(sv_2mortal(newSVpv(sv.shvvalue.strptr, valuelen))); |
| 378 | DosFreeMem(sv.shvvalue.strptr); |
| 379 | } else |
| 6b88bc9c |
380 | PUSHs(&PL_sv_undef); |
| 760ac839 |
381 | } else if (rc != RXSHV_LVAR) { |
| 382 | die("Error %i when in _next", rc); |
| 383 | } else { |
| 384 | if (trace) |
| 385 | fprintf(stderr, " rc=%X\n", rc); |
| 386 | } |
| 387 | } |
| 388 | |
| 389 | int |
| 390 | _drop(name,...) |
| 391 | char * name |
| 392 | CODE: |
| 393 | { |
| 394 | int i; |
| 395 | needvars(items); |
| 396 | for (i = 0; i < items; ++i) { |
| 397 | SHVBLOCK * var = &vars[i]; |
| 398 | STRLEN namelen; |
| 399 | name = SvPV(ST(i),namelen); |
| 400 | var->shvcode = RXSHV_DROPV; |
| 401 | var->shvnext = &vars[i+1]; |
| 402 | var->shvnamelen = namelen; |
| 403 | var->shvvaluelen = 0; |
| 404 | MAKERXSTRING(var->shvname, name, var->shvnamelen); |
| 405 | MAKERXSTRING(var->shvvalue, NULL, 0); |
| 406 | } |
| 407 | vars[items-1].shvnext = NULL; |
| 408 | RETVAL = (RexxVariablePool(vars) & ~RXSHV_NEWV) ? FALSE : TRUE; |
| 409 | } |
| 410 | OUTPUT: |
| 411 | RETVAL |
| 412 | |
| 413 | int |
| 414 | _register(name) |
| 415 | char * name |
| 416 | CODE: |
| 417 | RETVAL = RexxRegisterFunctionExe(name, PERLCALL); |
| 418 | OUTPUT: |
| 419 | RETVAL |
| 420 | |
| 421 | SV* |
| 422 | REXX_call(cv) |
| 423 | SV *cv |
| 424 | PROTOTYPE: & |
| 425 | |
| 426 | SV* |
| 427 | REXX_eval(cmd) |
| 428 | char *cmd |
| 429 | |
| 430 | SV* |
| 431 | REXX_eval_with(cmd,name,cv) |
| 432 | char *cmd |
| 433 | char *name |
| 434 | SV *cv |
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