17 extern ULONG _emx_exception ( EXCEPTIONREPORTRECORD *,
18 EXCEPTIONREGISTRATIONRECORD *,
22 static RXSTRING * strs;
24 static SHVBLOCK * vars;
29 static RXSTRING rxcommand = { 9, "RXCOMMAND" };
30 static RXSTRING rxsubroutine = { 12, "RXSUBROUTINE" };
31 static RXSTRING rxfunction = { 11, "RXFUNCTION" };
34 static ULONG PERLCALL(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret);
35 static ULONG PERLCALLcv(PCSZ name, SV *cv, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret);
36 static ULONG PERLSTART(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret);
37 static RexxSubcomHandler SubCommandPerlEval;
41 #define Fetch RXSHV_FETCH
42 #define Drop RXSHV_DROPV
44 #define Set RXSHV_SYSET
45 #define Fetch RXSHV_SYFET
46 #define Drop RXSHV_SYDRO
49 static long incompartment; /* May be used to unload the REXX */
51 static LONG APIENTRY (*pRexxStart) (LONG, PRXSTRING, PSZ, PRXSTRING,
52 PSZ, LONG, PRXSYSEXIT, PSHORT, PRXSTRING);
53 static APIRET APIENTRY (*pRexxRegisterFunctionExe) (PSZ,
54 RexxFunctionHandler *);
55 static APIRET APIENTRY (*pRexxRegisterSubcomExe) (PCSZ pszEnvName, PFN pfnEntryPoint,
57 static APIRET APIENTRY (*pRexxDeregisterFunction) (PSZ);
59 static ULONG (*pRexxVariablePool) (PSHVBLOCK pRequest);
63 /* Create a REXX compartment,
64 register `n' callbacks `handlers' with the REXX names `handlerNames',
65 evaluate the REXX expression `cmd'.
68 exec_in_REXX_with(pTHX_ char *cmd, int c, char **handlerNames, RexxFunctionHandler **handlers)
77 int n = c, have_nl = 0;
78 char *ocmd = cmd, *s, *t;
85 rc = pRexxRegisterFunctionExe(handlerNames[n], handlers[n]);
86 if (rc == RXFUNC_DEFINED)
92 if (*s == '\n') { /* Is not preceeded by \r! */
93 Newx(cmd, 2*strlen(cmd)+1, char);
103 } else if (*s == '\r')
107 MAKERXSTRING(args[0], NULL, 0);
108 MAKERXSTRING(inst[0], cmd, strlen(cmd));
109 MAKERXSTRING(inst[1], NULL, 0);
110 MAKERXSTRING(result, NULL, 0);
111 rc = pRexxStart(0, args, /* No arguments */
112 "REXX_in_Perl", /* Returned on REXX' PARSE SOURCE,
113 and the "macrospace function name" */
114 inst, /* inst[0] - the code to execute,
115 inst[1] will contain tokens. */
116 "Perl", /* Pass string-cmds to this callback */
117 RXSUBROUTINE, /* Many arguments, maybe result */
118 NULL, /* No callbacks/exits to register */
125 pRexxDeregisterFunction(handlerNames[n]);
130 #if 0 /* Do we want to restore these? */
131 DosFreeModule(hRexxAPI);
132 DosFreeModule(hRexx);
135 if (RXSTRPTR(inst[1])) /* Free the tokenized version */
136 DosFreeMem(RXSTRPTR(inst[1]));
137 if (!RXNULLSTRING(result)) {
138 res = newSVpv(RXSTRPTR(result), RXSTRLEN(result));
139 DosFreeMem(RXSTRPTR(result));
143 if (rc || SvTRUE(GvSV(PL_errgv))) {
144 if (SvTRUE(GvSV(PL_errgv))) {
146 Perl_croak(aTHX_ "Error inside perl function called from REXX compartment:\n%s", SvPV(GvSV(PL_errgv), n_a)) ;
148 Perl_croak(aTHX_ "REXX compartment returned non-zero status %li", rc);
154 /* Call the Perl function given by name, or if name=0, by cv,
155 with the given arguments. Return the stringified result to REXX. */
157 PERLCALLcv(PCSZ name, SV *cv, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret)
160 EXCEPTIONREGISTRATIONRECORD xreg = { NULL, _emx_exception };
167 DosSetExceptionHandler(&xreg);
175 DosUnsetExceptionHandler(&xreg);
180 for (i = 0; i < argc; ++i)
181 XPUSHs(sv_2mortal(newSVpvn(argv[i].strptr, argv[i].strlength)));
184 rc = perl_call_pv(name, G_SCALAR | G_EVAL);
186 rc = perl_call_sv(cv, G_SCALAR | G_EVAL);
192 if (rc == 1) /* must be! */
194 if (rc == 1 && SvOK(res)) {
195 str = SvPVx(res, len);
196 if (len <= 256 /* Default buffer is 256-char long */
197 || !CheckOSError(DosAllocMem((PPVOID)&ret->strptr, len,
198 PAG_READ|PAG_WRITE|PAG_COMMIT))) {
199 memcpy(ret->strptr, str, len);
200 ret->strlength = len;
210 DosUnsetExceptionHandler(&xreg);
211 return rc == 1 ? 0 : 1; /* 0 means SUCCESS */
215 PERLSTART(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret)
220 return PERLCALLcv(NULL, cv, argc, argv, queue, ret);
224 PERLCALL(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret)
226 return PERLCALLcv(name, Nullsv, argc, argv, queue, ret);
229 RexxFunctionHandler* PF = &PERLSTART;
230 char* PF_name = "StartPerl";
232 #define REXX_eval_with(cmd,name,cv) \
233 ( exec_cv = cv, exec_in_REXX_with(aTHX_ (cmd),1, &(name), &PF))
234 #define REXX_call(cv) REXX_eval_with("return StartPerl()\r\n", PF_name, (cv))
235 #define REXX_eval(cmd) ( exec_in_REXX_with(aTHX_ (cmd), 0, NULL, NULL))
239 PRXSTRING command, /* command to issue */
240 PUSHORT flags, /* error/failure flags */
241 PRXSTRING retstr ) /* return code */
253 in = sv_2mortal(newSVpvn(command->strptr, command->strlength));
254 eval_sv(in, G_SCALAR);
261 *flags = RXSUBCOM_ERROR; /* raise error condition */
262 str = SvPV(ERRSV, len);
263 } else if (!SvOK(res)) {
264 *flags = RXSUBCOM_ERROR; /* raise error condition */
265 str = "undefined value returned by Perl-in-REXX";
268 str = SvPV(res, len);
269 if (len <= 256 /* Default buffer is 256-char long */
270 || !DosAllocMem((PPVOID)&retstr->strptr, len,
271 PAG_READ|PAG_WRITE|PAG_COMMIT)) {
272 memcpy(retstr->strptr, str, len);
273 retstr->strlength = len;
275 *flags = RXSUBCOM_ERROR; /* raise error condition */
276 strcpy(retstr->strptr, "Not enough memory for the return string of Perl-in-REXX");
277 retstr->strlength = strlen(retstr->strptr);
283 return 0; /* finished */
293 strs = malloc(nstrs * sizeof(RXSTRING));
304 vars = malloc(nvars * sizeof(SHVBLOCK));
312 *(PFN *)&pRexxStart = loadByOrdinal(ORD_RexxStart, 1);
313 *(PFN *)&pRexxRegisterFunctionExe
314 = loadByOrdinal(ORD_RexxRegisterFunctionExe, 1);
315 *(PFN *)&pRexxDeregisterFunction
316 = loadByOrdinal(ORD_RexxDeregisterFunction, 1);
317 *(PFN *)&pRexxVariablePool = loadByOrdinal(ORD_RexxVariablePool, 1);
318 *(PFN *)&pRexxRegisterSubcomExe
319 = loadByOrdinal(ORD_RexxRegisterSubcomExe, 1);
322 trace = getenv("PERL_REXX_DEBUG");
324 rc = pRexxRegisterSubcomExe("PERLEVAL", (PFN)&SubCommandPerlEval, NULL);
328 constant(char *name, int arg)
335 MODULE = OS2::REXX PACKAGE = OS2::REXX
352 int n = (items + 1) / 2;
356 fprintf(stderr, "REXXCALL::_set");
357 for (i = 0; i < n; ++i) {
358 SHVBLOCK * var = &vars[i];
361 name = SvPV(ST(2*i+0),namelen);
363 value = SvPV(ST(2*i+1),valuelen);
369 var->shvcode = RXSHV_SET;
370 var->shvnext = &vars[i+1];
371 var->shvnamelen = namelen;
372 var->shvvaluelen = valuelen;
373 MAKERXSTRING(var->shvname, name, namelen);
374 MAKERXSTRING(var->shvvalue, value, valuelen);
376 fprintf(stderr, " %.*s='%.*s'",
377 (int)var->shvname.strlength, var->shvname.strptr,
378 (int)var->shvvalue.strlength, var->shvvalue.strptr);
381 fprintf(stderr, "\n");
382 vars[n-1].shvnext = NULL;
383 rc = pRexxVariablePool(vars);
385 fprintf(stderr, " rc=%#lX\n", rc);
386 RETVAL = (rc & ~RXSHV_NEWV) ? FALSE : TRUE;
401 fprintf(stderr, "REXXCALL::_fetch");
402 for (i = 0; i < items; ++i) {
403 SHVBLOCK * var = &vars[i];
405 name = SvPV(ST(i),namelen);
406 var->shvcode = RXSHV_FETCH;
407 var->shvnext = &vars[i+1];
408 var->shvnamelen = namelen;
409 var->shvvaluelen = 0;
410 MAKERXSTRING(var->shvname, name, namelen);
411 MAKERXSTRING(var->shvvalue, NULL, 0);
413 fprintf(stderr, " '%s'", name);
416 fprintf(stderr, "\n");
417 vars[items-1].shvnext = NULL;
418 rc = pRexxVariablePool(vars);
419 if (!(rc & ~RXSHV_NEWV)) {
420 for (i = 0; i < items; ++i) {
422 SHVBLOCK * var = &vars[i];
423 /* returned lengths appear to be swapped */
424 /* but beware of "future bug fixes" */
425 namelen = var->shvvalue.strlength; /* should be */
426 if (var->shvvaluelen < var->shvvalue.strlength)
427 namelen = var->shvvaluelen; /* is */
429 fprintf(stderr, " %.*s='%.*s'\n",
430 (int)var->shvname.strlength, var->shvname.strptr,
431 namelen, var->shvvalue.strptr);
432 if (var->shvret & RXSHV_NEWV || !var->shvvalue.strptr)
435 PUSHs(sv_2mortal(newSVpv(var->shvvalue.strptr,
440 fprintf(stderr, " rc=%#lX\n", rc);
452 int len = strlen(stem), namelen, valuelen;
454 fprintf(stderr, "REXXCALL::_next stem='%s'\n", stem);
455 sv.shvcode = RXSHV_NEXTV;
457 MAKERXSTRING(sv.shvvalue, NULL, 0);
459 sv.shvnamelen = sizeof name;
461 MAKERXSTRING(sv.shvname, name, sizeof name);
462 if (sv.shvvalue.strptr) {
463 DosFreeMem(sv.shvvalue.strptr);
464 MAKERXSTRING(sv.shvvalue, NULL, 0);
466 rc = pRexxVariablePool(&sv);
467 } while (!rc && memcmp(stem, sv.shvname.strptr, len) != 0);
470 /* returned lengths appear to be swapped */
471 /* but beware of "future bug fixes" */
472 namelen = sv.shvname.strlength; /* should be */
473 if (sv.shvnamelen < sv.shvname.strlength)
474 namelen = sv.shvnamelen; /* is */
475 valuelen = sv.shvvalue.strlength; /* should be */
476 if (sv.shvvaluelen < sv.shvvalue.strlength)
477 valuelen = sv.shvvaluelen; /* is */
479 fprintf(stderr, " %.*s='%.*s'\n",
480 namelen, sv.shvname.strptr,
481 valuelen, sv.shvvalue.strptr);
482 PUSHs(sv_2mortal(newSVpv(sv.shvname.strptr+len, namelen-len)));
483 if (sv.shvvalue.strptr) {
484 PUSHs(sv_2mortal(newSVpv(sv.shvvalue.strptr, valuelen)));
485 DosFreeMem(sv.shvvalue.strptr);
488 } else if (rc != RXSHV_LVAR) {
489 die("Error %i when in _next", rc);
492 fprintf(stderr, " rc=%#lX\n", rc);
503 for (i = 0; i < items; ++i) {
504 SHVBLOCK * var = &vars[i];
506 name = SvPV(ST(i),namelen);
507 var->shvcode = RXSHV_DROPV;
508 var->shvnext = &vars[i+1];
509 var->shvnamelen = namelen;
510 var->shvvaluelen = 0;
511 MAKERXSTRING(var->shvname, name, var->shvnamelen);
512 MAKERXSTRING(var->shvvalue, NULL, 0);
514 vars[items-1].shvnext = NULL;
515 RETVAL = (pRexxVariablePool(vars) & ~RXSHV_NEWV) ? FALSE : TRUE;
524 RETVAL = pRexxRegisterFunctionExe(name, PERLCALL);
538 REXX_eval_with(cmd,name,cv)
543 #ifdef THIS_IS_NOT_FINISHED
546 _REXX_eval_with(cmd,...)
550 int n = (items - 1)/2;
554 if ((items % 2) == 0)
555 Perl_croak(aTHX_ "Name/values should come in pairs in REXX_eval_with()");
556 Newx(names, n, char*);
558 /* XXX Unfinished... */