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_perl_destruct_level = 1;
81 return !perl_parse(my_perl, xs_init, 3, argv, (char **)NULL);
84 static char last_error[4096];
87 seterr(char *format, ...)
96 snprintf(s, sizeof(last_error) - (s - last_error), "\n");
100 vsnprintf(s, sizeof(last_error) - (s - last_error), format, va);
104 /* The REXX-callable entrypoints ... */
106 ULONG PERL (PCSZ name, LONG rargc, const RXSTRING *rargv,
107 PCSZ queuename, PRXSTRING retstr)
111 char *argv[3] = {"perl_from_REXX", "-e", buf};
115 return seterr("one argument expected, got %ld", rargc);
116 if (rargv[0].strlength >= sizeof(buf))
117 return seterr("length of the argument %ld exceeds the maximum %ld",
118 rargv[0].strlength, (long)sizeof(buf) - 1);
123 memcpy(buf, rargv[0].strptr, rargv[0].strlength);
124 buf[rargv[0].strlength] = 0;
126 if (!perl_parse(my_perl, xs_init, 3, argv, (char **)NULL))
129 exitstatus = perl_destruct(my_perl);
137 sprintf(retstr->strptr, "%s", "ok");
138 retstr->strlength = strlen (retstr->strptr);
144 ULONG PERLEXIT (PCSZ name, LONG rargc, const RXSTRING *rargv,
145 PCSZ queuename, PRXSTRING retstr)
148 return seterr("no arguments expected, got %ld", rargc);
153 ULONG PERLTERM (PCSZ name, LONG rargc, const RXSTRING *rargv,
154 PCSZ queuename, PRXSTRING retstr)
157 return seterr("no arguments expected, got %ld", rargc);
159 return seterr("no perl interpreter present");
160 perl_destruct(my_perl);
164 sprintf(retstr->strptr, "%s", "ok");
165 retstr->strlength = strlen (retstr->strptr);
170 ULONG PERLINIT (PCSZ name, LONG rargc, const RXSTRING *rargv,
171 PCSZ queuename, PRXSTRING retstr)
174 return seterr("no argument expected, got %ld", rargc);
178 sprintf(retstr->strptr, "%s", "ok");
179 retstr->strlength = strlen (retstr->strptr);
184 PERLLASTERROR (PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
186 int len = strlen(last_error);
188 if (len <= 256 /* Default buffer is 256-char long */
189 || !DosAllocMem((PPVOID)&retstr->strptr, len,
190 PAG_READ|PAG_WRITE|PAG_COMMIT)) {
191 memcpy(retstr->strptr, last_error, len);
192 retstr->strlength = len;
194 strcpy(retstr->strptr, "[Not enough memory to copy the errortext]");
195 retstr->strlength = strlen(retstr->strptr);
201 PERLEVAL (PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
209 return seterr("one argument expected, got %ld", rargc);
212 return seterr("error initializing perl");
222 in = sv_2mortal(newSVpvn(rargv[0].strptr, rargv[0].strlength));
223 eval_sv(in, G_SCALAR);
230 ret = seterr(SvPV(ERRSV, n_a));
232 ret = seterr("undefined value returned by Perl-in-REXX");
233 str = SvPV(res, len);
234 if (len <= 256 /* Default buffer is 256-char long */
235 || !DosAllocMem((PPVOID)&retstr->strptr, len,
236 PAG_READ|PAG_WRITE|PAG_COMMIT)) {
237 memcpy(retstr->strptr, str, len);
238 retstr->strlength = len;
240 ret = seterr("Not enough memory for the return string of Perl-in-REXX");
251 const RXSTRING *command, /* command to issue */
252 PUSHORT flags, /* error/failure flags */
253 PRXSTRING retstr ) /* return code */
255 ULONG rc = PERLEVAL(NULL, 1, command, NULL, retstr);
258 *flags = RXSUBCOM_ERROR; /* raise error condition */
260 return 0; /* finished */
263 #define ArrLength(a) (sizeof(a)/sizeof(*(a)))
265 static const struct {
267 RexxFunctionHandler *f;
269 {"PERL", (RexxFunctionHandler *)&PERL},
270 {"PERLTERM", (RexxFunctionHandler *)&PERLTERM},
271 {"PERLINIT", (RexxFunctionHandler *)&PERLINIT},
272 {"PERLEXIT", (RexxFunctionHandler *)&PERLEXIT},
273 {"PERLEVAL", (RexxFunctionHandler *)&PERLEVAL},
274 {"PERLLASTERROR", (RexxFunctionHandler *)&PERLLASTERROR},
275 {"PERLDROPALL", (RexxFunctionHandler *)&PERLDROPALL},
276 {"PERLDROPALLEXIT", (RexxFunctionHandler *)&PERLDROPALLEXIT},
277 /* Should be the last entry */
278 {"PERLEXPORTALL", (RexxFunctionHandler *)&PERLEXPORTALL}
282 PERLEXPORTALL(PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
286 while (++i < ArrLength(funcs) - 1)
287 RexxRegisterFunctionExe(funcs[i].name, funcs[i].f);
288 RexxRegisterSubcomExe("EVALPERL", (PFN)&PERLEVALSUBCOMMAND, NULL);
289 retstr->strlength = 0;
294 PERLDROPALL(PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
298 while (++i < ArrLength(funcs))
299 RexxDeregisterFunction(funcs[i].name);
300 RexxDeregisterSubcom("EVALPERL", NULL /* Not a DLL version */);
301 retstr->strlength = 0;
306 PERLDROPALLEXIT(PCSZ name, LONG rargc, const RXSTRING *rargv, PCSZ queuename, PRXSTRING retstr)
310 while (++i < ArrLength(funcs))
311 RexxDeregisterFunction(funcs[i].name);
312 RexxDeregisterSubcom("EVALPERL", NULL /* Not a DLL version */);
314 retstr->strlength = 0;