1 #define INCL_DOSPROCESS
2 #define INCL_DOSSEMAPHORES
3 #define INCL_DOSMODULEMGR
5 #define INCL_DOSEXCEPTIONS
11 * The Road goes ever on and on
12 * Down from the door where it began.
14 * [Bilbo on p.35 of _The Lord of the Rings_, I/i: "A Long-Expected Party"]
15 * [Frodo on p.73 of _The Lord of the Rings_, I/iii: "Three Is Company"]
20 /* sbrk is limited to first heap segement so make it big */
21 #pragma runopts(HEAP(8M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
23 #pragma runopts(HEAP(2M,500K,ANYWHERE,KEEP,8K,4K) STACK(,,ANY,) ALL31(ON))
31 static void xs_init (pTHX);
32 static PerlInterpreter *my_perl;
34 ULONG PERLEXPORTALL(PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr);
35 ULONG PERLDROPALL(PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr);
36 ULONG PERLDROPALLEXIT(PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr);
38 /* Register any extra external extensions */
40 /* Do not delete this line--writemain depends on it */
41 EXTERN_C void boot_DynaLoader (pTHX_ CV* cv);
46 char *file = __FILE__;
48 newXS("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
51 int perlos2_is_inited;
56 /* static char *env[1] = {NULL}; */
58 Perl_OS2_init3(0, 0, 0);
62 init_perl(int doparse)
64 char *argv[3] = {"perl_in_REXX", "-e", ""};
66 if (!perlos2_is_inited) {
67 perlos2_is_inited = 1;
73 my_perl = perl_alloc();
76 perl_construct(my_perl);
77 PL_exit_flags |= PERL_EXIT_DESTRUCT_END;
78 PL_perl_destruct_level = 1;
82 return !perl_parse(my_perl, xs_init, 3, argv, (char **)NULL);
85 static char last_error[4096];
88 seterr(char *format, ...)
97 snprintf(s, sizeof(last_error) - (s - last_error), "\n");
101 vsnprintf(s, sizeof(last_error) - (s - last_error), format, va);
105 /* The REXX-callable entrypoints ... */
107 ULONG PERL (PCSZ name, LONG rargc, const RXSTRING *rargv,
108 PCSZ queuename, PRXSTRING retstr)
112 char *argv[3] = {"perl_from_REXX", "-e", buf};
116 return seterr("one argument expected, got %ld", rargc);
117 if (rargv[0].strlength >= sizeof(buf))
118 return seterr("length of the argument %ld exceeds the maximum %ld",
119 rargv[0].strlength, (long)sizeof(buf) - 1);
124 memcpy(buf, rargv[0].strptr, rargv[0].strlength);
125 buf[rargv[0].strlength] = 0;
127 if (!perl_parse(my_perl, xs_init, 3, argv, (char **)NULL))
130 exitstatus = perl_destruct(my_perl);
138 sprintf(retstr->strptr, "%s", "ok");
139 retstr->strlength = strlen (retstr->strptr);
145 ULONG PERLEXIT (PCSZ name, LONG rargc, const RXSTRING *rargv,
146 PCSZ queuename, PRXSTRING retstr)
149 return seterr("no arguments expected, got %ld", rargc);
154 ULONG PERLTERM (PCSZ name, LONG rargc, const RXSTRING *rargv,
155 PCSZ queuename, PRXSTRING retstr)
158 return seterr("no arguments expected, got %ld", rargc);
160 return seterr("no perl interpreter present");
161 perl_destruct(my_perl);
165 sprintf(retstr->strptr, "%s", "ok");
166 retstr->strlength = strlen (retstr->strptr);
171 ULONG PERLINIT (PCSZ name, LONG rargc, const RXSTRING *rargv,
172 PCSZ queuename, PRXSTRING retstr)
175 return seterr("no argument expected, got %ld", rargc);
179 sprintf(retstr->strptr, "%s", "ok");
180 retstr->strlength = strlen (retstr->strptr);
185 PERLLASTERROR (PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
187 int len = strlen(last_error);
189 if (len <= 256 /* Default buffer is 256-char long */
190 || !DosAllocMem((PPVOID)&retstr->strptr, len,
191 PAG_READ|PAG_WRITE|PAG_COMMIT)) {
192 memcpy(retstr->strptr, last_error, len);
193 retstr->strlength = len;
195 strcpy(retstr->strptr, "[Not enough memory to copy the errortext]");
196 retstr->strlength = strlen(retstr->strptr);
202 PERLEVAL (PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
210 return seterr("one argument expected, got %ld", rargc);
213 return seterr("error initializing perl");
223 in = sv_2mortal(newSVpvn(rargv[0].strptr, rargv[0].strlength));
224 eval_sv(in, G_SCALAR);
231 ret = seterr(SvPV(ERRSV, n_a));
233 ret = seterr("undefined value returned by Perl-in-REXX");
234 str = SvPV(res, len);
235 if (len <= 256 /* Default buffer is 256-char long */
236 || !DosAllocMem((PPVOID)&retstr->strptr, len,
237 PAG_READ|PAG_WRITE|PAG_COMMIT)) {
238 memcpy(retstr->strptr, str, len);
239 retstr->strlength = len;
241 ret = seterr("Not enough memory for the return string of Perl-in-REXX");
252 const RXSTRING *command, /* command to issue */
253 PUSHORT flags, /* error/failure flags */
254 PRXSTRING retstr ) /* return code */
256 ULONG rc = PERLEVAL(NULL, 1, command, NULL, retstr);
259 *flags = RXSUBCOM_ERROR; /* raise error condition */
261 return 0; /* finished */
264 #define ArrLength(a) (sizeof(a)/sizeof(*(a)))
266 static const struct {
268 RexxFunctionHandler *f;
270 {"PERL", (RexxFunctionHandler *)&PERL},
271 {"PERLTERM", (RexxFunctionHandler *)&PERLTERM},
272 {"PERLINIT", (RexxFunctionHandler *)&PERLINIT},
273 {"PERLEXIT", (RexxFunctionHandler *)&PERLEXIT},
274 {"PERLEVAL", (RexxFunctionHandler *)&PERLEVAL},
275 {"PERLLASTERROR", (RexxFunctionHandler *)&PERLLASTERROR},
276 {"PERLDROPALL", (RexxFunctionHandler *)&PERLDROPALL},
277 {"PERLDROPALLEXIT", (RexxFunctionHandler *)&PERLDROPALLEXIT},
278 /* Should be the last entry */
279 {"PERLEXPORTALL", (RexxFunctionHandler *)&PERLEXPORTALL}
283 PERLEXPORTALL(PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
287 while (++i < ArrLength(funcs) - 1)
288 RexxRegisterFunctionExe(funcs[i].name, funcs[i].f);
289 RexxRegisterSubcomExe("EVALPERL", (PFN)&PERLEVALSUBCOMMAND, NULL);
290 retstr->strlength = 0;
295 PERLDROPALL(PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
299 while (++i < ArrLength(funcs))
300 RexxDeregisterFunction(funcs[i].name);
301 RexxDeregisterSubcom("EVALPERL", NULL /* Not a DLL version */);
302 retstr->strlength = 0;
307 PERLDROPALLEXIT(PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
311 while (++i < ArrLength(funcs))
312 RexxDeregisterFunction(funcs[i].name);
313 RexxDeregisterSubcom("EVALPERL", NULL /* Not a DLL version */);
315 retstr->strlength = 0;