Commit | Line | Data |
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 | |
35bc1fdc |
28 | /* |
760ac839 |
29 | static RXSTRING rxcommand = { 9, "RXCOMMAND" }; |
30 | static RXSTRING rxsubroutine = { 12, "RXSUBROUTINE" }; |
31 | static RXSTRING rxfunction = { 11, "RXFUNCTION" }; |
35bc1fdc |
32 | */ |
760ac839 |
33 | |
46e87256 |
34 | static ULONG PERLCALL(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret); |
760ac839 |
35 | |
36 | #if 1 |
37 | #define Set RXSHV_SET |
38 | #define Fetch RXSHV_FETCH |
39 | #define Drop RXSHV_DROPV |
40 | #else |
41 | #define Set RXSHV_SYSET |
42 | #define Fetch RXSHV_SYFET |
43 | #define Drop RXSHV_SYDRO |
44 | #endif |
45 | |
46 | static long incompartment; |
47 | |
35bc1fdc |
48 | static LONG APIENTRY (*pRexxStart) (LONG, PRXSTRING, PSZ, PRXSTRING, |
49 | PSZ, LONG, PRXSYSEXIT, PSHORT, PRXSTRING); |
50 | static APIRET APIENTRY (*pRexxRegisterFunctionExe) (PSZ, |
51 | RexxFunctionHandler *); |
52 | static APIRET APIENTRY (*pRexxDeregisterFunction) (PSZ); |
53 | |
54 | static ULONG (*pRexxVariablePool) (PSHVBLOCK pRequest); |
55 | |
760ac839 |
56 | static SV* |
41cd3736 |
57 | exec_in_REXX(pTHX_ char *cmd, char * handlerName, RexxFunctionHandler *handler) |
760ac839 |
58 | { |
760ac839 |
59 | RXSTRING args[1]; |
60 | RXSTRING inst[2]; |
61 | RXSTRING result; |
62 | USHORT retcode; |
63 | LONG rc; |
64 | SV *res; |
65 | |
41cd3736 |
66 | if (incompartment) |
67 | Perl_die(aTHX_ "Attempt to reenter into REXX compartment"); |
760ac839 |
68 | incompartment = 1; |
69 | |
760ac839 |
70 | if (handlerName) |
71 | pRexxRegisterFunctionExe(handlerName, handler); |
72 | |
73 | MAKERXSTRING(args[0], NULL, 0); |
74 | MAKERXSTRING(inst[0], cmd, strlen(cmd)); |
75 | MAKERXSTRING(inst[1], NULL, 0); |
76 | MAKERXSTRING(result, NULL, 0); |
77 | rc = pRexxStart(0, args, "StartPerl", inst, "Perl", RXSUBROUTINE, NULL, |
78 | &retcode, &result); |
79 | |
80 | incompartment = 0; |
81 | pRexxDeregisterFunction("StartPerl"); |
35bc1fdc |
82 | #if 0 /* Do we want to restore these? */ |
760ac839 |
83 | DosFreeModule(hRexxAPI); |
84 | DosFreeModule(hRexx); |
35bc1fdc |
85 | #endif |
760ac839 |
86 | if (!RXNULLSTRING(result)) { |
87 | res = newSVpv(RXSTRPTR(result), RXSTRLEN(result)); |
88 | DosFreeMem(RXSTRPTR(result)); |
89 | } else { |
90 | res = NEWSV(729,0); |
91 | } |
6b88bc9c |
92 | if (rc || SvTRUE(GvSV(PL_errgv))) { |
93 | if (SvTRUE(GvSV(PL_errgv))) { |
2d8e6c8d |
94 | STRLEN n_a; |
5ba48348 |
95 | Perl_die(aTHX_ "Error inside perl function called from REXX compartment:\n%s", SvPV(GvSV(PL_errgv), n_a)) ; |
760ac839 |
96 | } |
41cd3736 |
97 | Perl_die(aTHX_ "REXX compartment returned non-zero status %li", rc); |
760ac839 |
98 | } |
99 | |
100 | return res; |
101 | } |
102 | |
103 | static SV* exec_cv; |
104 | |
105 | static ULONG |
46e87256 |
106 | PERLSTART(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret) |
760ac839 |
107 | { |
108 | return PERLCALL(NULL, argc, argv, queue, ret); |
109 | } |
110 | |
41cd3736 |
111 | #define in_rexx_compartment() exec_in_REXX(aTHX_ "return StartPerl()\r\n", \ |
760ac839 |
112 | "StartPerl", PERLSTART) |
113 | #define REXX_call(cv) ( exec_cv = (cv), in_rexx_compartment()) |
114 | #define REXX_eval_with(cmd,name,cv) ( exec_cv = (cv), \ |
41cd3736 |
115 | exec_in_REXX(aTHX_ cmd,name,PERLSTART)) |
760ac839 |
116 | #define REXX_eval(cmd) REXX_eval_with(cmd,NULL,NULL) |
117 | |
118 | static ULONG |
46e87256 |
119 | PERLCALL(PCSZ name, ULONG argc, PRXSTRING argv, PCSZ queue, PRXSTRING ret) |
760ac839 |
120 | { |
41cd3736 |
121 | dTHX; |
760ac839 |
122 | EXCEPTIONREGISTRATIONRECORD xreg = { NULL, _emx_exception }; |
123 | int i, rc; |
124 | unsigned long len; |
125 | char *str; |
5ba48348 |
126 | SV *res; |
760ac839 |
127 | dSP; |
128 | |
129 | DosSetExceptionHandler(&xreg); |
130 | |
131 | ENTER; |
132 | SAVETMPS; |
924508f0 |
133 | PUSHMARK(SP); |
760ac839 |
134 | |
135 | #if 0 |
136 | if (!my_perl) { |
137 | DosUnsetExceptionHandler(&xreg); |
138 | return 1; |
139 | } |
140 | #endif |
141 | |
5ba48348 |
142 | for (i = 0; i < argc; ++i) |
143 | XPUSHs(sv_2mortal(newSVpvn(argv[i].strptr, argv[i].strlength))); |
144 | PUTBACK; |
760ac839 |
145 | if (name) { |
5ba48348 |
146 | rc = perl_call_pv(name, G_SCALAR | G_EVAL); |
760ac839 |
147 | } else if (exec_cv) { |
148 | SV *cv = exec_cv; |
149 | |
150 | exec_cv = NULL; |
151 | rc = perl_call_sv(cv, G_SCALAR | G_EVAL); |
5ba48348 |
152 | } else |
153 | rc = -1; |
760ac839 |
154 | |
155 | SPAGAIN; |
156 | |
5ba48348 |
157 | if (rc == 1) /* must be! */ |
158 | res = POPs; |
159 | if (rc == 1 && SvOK(res)) { |
160 | str = SvPVx(res, len); |
161 | if (len <= 256 /* Default buffer is 256-char long */ |
162 | || !CheckOSError(DosAllocMem((PPVOID)&ret->strptr, len, |
163 | PAG_READ|PAG_WRITE|PAG_COMMIT))) { |
164 | memcpy(ret->strptr, str, len); |
165 | ret->strlength = len; |
166 | } else |
167 | rc = 0; |
168 | } else |
169 | rc = 0; |
760ac839 |
170 | |
171 | PUTBACK ; |
172 | FREETMPS ; |
173 | LEAVE ; |
174 | |
760ac839 |
175 | DosUnsetExceptionHandler(&xreg); |
5ba48348 |
176 | return rc == 1 ? 0 : 1; /* 0 means SUCCESS */ |
760ac839 |
177 | } |
178 | |
179 | static void |
180 | needstrs(int n) |
181 | { |
182 | if (n > nstrs) { |
183 | if (strs) |
184 | free(strs); |
185 | nstrs = 2 * n; |
186 | strs = malloc(nstrs * sizeof(RXSTRING)); |
187 | } |
188 | } |
189 | |
190 | static void |
191 | needvars(int n) |
192 | { |
193 | if (n > nvars) { |
194 | if (vars) |
195 | free(vars); |
196 | nvars = 2 * n; |
197 | vars = malloc(nvars * sizeof(SHVBLOCK)); |
198 | } |
199 | } |
200 | |
201 | static void |
202 | initialize(void) |
203 | { |
35bc1fdc |
204 | *(PFN *)&pRexxStart = loadByOrdinal(ORD_RexxStart, 1); |
205 | *(PFN *)&pRexxRegisterFunctionExe |
206 | = loadByOrdinal(ORD_RexxRegisterFunctionExe, 1); |
207 | *(PFN *)&pRexxDeregisterFunction |
208 | = loadByOrdinal(ORD_RexxDeregisterFunction, 1); |
209 | *(PFN *)&pRexxVariablePool = loadByOrdinal(ORD_RexxVariablePool, 1); |
760ac839 |
210 | needstrs(8); |
211 | needvars(8); |
212 | trace = getenv("PERL_REXX_DEBUG"); |
213 | } |
214 | |
215 | static int |
41cd3736 |
216 | constant(char *name, int arg) |
760ac839 |
217 | { |
218 | errno = EINVAL; |
219 | return 0; |
220 | } |
221 | |
222 | |
223 | MODULE = OS2::REXX PACKAGE = OS2::REXX |
224 | |
225 | BOOT: |
226 | initialize(); |
227 | |
228 | int |
229 | constant(name,arg) |
230 | char * name |
231 | int arg |
232 | |
760ac839 |
233 | int |
234 | _set(name,value,...) |
235 | char * name |
236 | char * value |
237 | CODE: |
238 | { |
239 | int i; |
240 | int n = (items + 1) / 2; |
241 | ULONG rc; |
242 | needvars(n); |
243 | if (trace) |
244 | fprintf(stderr, "REXXCALL::_set"); |
245 | for (i = 0; i < n; ++i) { |
246 | SHVBLOCK * var = &vars[i]; |
247 | STRLEN namelen; |
248 | STRLEN valuelen; |
249 | name = SvPV(ST(2*i+0),namelen); |
250 | if (2*i+1 < items) { |
251 | value = SvPV(ST(2*i+1),valuelen); |
252 | } |
253 | else { |
254 | value = ""; |
255 | valuelen = 0; |
256 | } |
257 | var->shvcode = RXSHV_SET; |
258 | var->shvnext = &vars[i+1]; |
259 | var->shvnamelen = namelen; |
260 | var->shvvaluelen = valuelen; |
261 | MAKERXSTRING(var->shvname, name, namelen); |
262 | MAKERXSTRING(var->shvvalue, value, valuelen); |
263 | if (trace) |
264 | fprintf(stderr, " %.*s='%.*s'", |
35bc1fdc |
265 | (int)var->shvname.strlength, var->shvname.strptr, |
266 | (int)var->shvvalue.strlength, var->shvvalue.strptr); |
760ac839 |
267 | } |
268 | if (trace) |
269 | fprintf(stderr, "\n"); |
270 | vars[n-1].shvnext = NULL; |
35bc1fdc |
271 | rc = pRexxVariablePool(vars); |
760ac839 |
272 | if (trace) |
35bc1fdc |
273 | fprintf(stderr, " rc=%#lX\n", rc); |
760ac839 |
274 | RETVAL = (rc & ~RXSHV_NEWV) ? FALSE : TRUE; |
275 | } |
276 | OUTPUT: |
277 | RETVAL |
278 | |
279 | void |
280 | _fetch(name, ...) |
281 | char * name |
282 | PPCODE: |
283 | { |
284 | int i; |
285 | ULONG rc; |
924508f0 |
286 | EXTEND(SP, items); |
760ac839 |
287 | needvars(items); |
288 | if (trace) |
289 | fprintf(stderr, "REXXCALL::_fetch"); |
290 | for (i = 0; i < items; ++i) { |
291 | SHVBLOCK * var = &vars[i]; |
292 | STRLEN namelen; |
293 | name = SvPV(ST(i),namelen); |
294 | var->shvcode = RXSHV_FETCH; |
295 | var->shvnext = &vars[i+1]; |
296 | var->shvnamelen = namelen; |
297 | var->shvvaluelen = 0; |
298 | MAKERXSTRING(var->shvname, name, namelen); |
299 | MAKERXSTRING(var->shvvalue, NULL, 0); |
300 | if (trace) |
301 | fprintf(stderr, " '%s'", name); |
302 | } |
303 | if (trace) |
304 | fprintf(stderr, "\n"); |
305 | vars[items-1].shvnext = NULL; |
35bc1fdc |
306 | rc = pRexxVariablePool(vars); |
760ac839 |
307 | if (!(rc & ~RXSHV_NEWV)) { |
308 | for (i = 0; i < items; ++i) { |
309 | int namelen; |
310 | SHVBLOCK * var = &vars[i]; |
311 | /* returned lengths appear to be swapped */ |
312 | /* but beware of "future bug fixes" */ |
313 | namelen = var->shvvalue.strlength; /* should be */ |
314 | if (var->shvvaluelen < var->shvvalue.strlength) |
315 | namelen = var->shvvaluelen; /* is */ |
316 | if (trace) |
317 | fprintf(stderr, " %.*s='%.*s'\n", |
35bc1fdc |
318 | (int)var->shvname.strlength, var->shvname.strptr, |
760ac839 |
319 | namelen, var->shvvalue.strptr); |
320 | if (var->shvret & RXSHV_NEWV || !var->shvvalue.strptr) |
6b88bc9c |
321 | PUSHs(&PL_sv_undef); |
760ac839 |
322 | else |
323 | PUSHs(sv_2mortal(newSVpv(var->shvvalue.strptr, |
324 | namelen))); |
325 | } |
326 | } else { |
327 | if (trace) |
35bc1fdc |
328 | fprintf(stderr, " rc=%#lX\n", rc); |
760ac839 |
329 | } |
330 | } |
331 | |
332 | void |
333 | _next(stem) |
334 | char * stem |
335 | PPCODE: |
336 | { |
337 | SHVBLOCK sv; |
338 | BYTE name[4096]; |
339 | ULONG rc; |
340 | int len = strlen(stem), namelen, valuelen; |
341 | if (trace) |
342 | fprintf(stderr, "REXXCALL::_next stem='%s'\n", stem); |
343 | sv.shvcode = RXSHV_NEXTV; |
344 | sv.shvnext = NULL; |
345 | MAKERXSTRING(sv.shvvalue, NULL, 0); |
346 | do { |
347 | sv.shvnamelen = sizeof name; |
348 | sv.shvvaluelen = 0; |
349 | MAKERXSTRING(sv.shvname, name, sizeof name); |
350 | if (sv.shvvalue.strptr) { |
351 | DosFreeMem(sv.shvvalue.strptr); |
352 | MAKERXSTRING(sv.shvvalue, NULL, 0); |
353 | } |
35bc1fdc |
354 | rc = pRexxVariablePool(&sv); |
760ac839 |
355 | } while (!rc && memcmp(stem, sv.shvname.strptr, len) != 0); |
356 | if (!rc) { |
924508f0 |
357 | EXTEND(SP, 2); |
760ac839 |
358 | /* returned lengths appear to be swapped */ |
359 | /* but beware of "future bug fixes" */ |
360 | namelen = sv.shvname.strlength; /* should be */ |
361 | if (sv.shvnamelen < sv.shvname.strlength) |
362 | namelen = sv.shvnamelen; /* is */ |
363 | valuelen = sv.shvvalue.strlength; /* should be */ |
364 | if (sv.shvvaluelen < sv.shvvalue.strlength) |
365 | valuelen = sv.shvvaluelen; /* is */ |
366 | if (trace) |
367 | fprintf(stderr, " %.*s='%.*s'\n", |
368 | namelen, sv.shvname.strptr, |
369 | valuelen, sv.shvvalue.strptr); |
370 | PUSHs(sv_2mortal(newSVpv(sv.shvname.strptr+len, namelen-len))); |
371 | if (sv.shvvalue.strptr) { |
372 | PUSHs(sv_2mortal(newSVpv(sv.shvvalue.strptr, valuelen))); |
373 | DosFreeMem(sv.shvvalue.strptr); |
374 | } else |
6b88bc9c |
375 | PUSHs(&PL_sv_undef); |
760ac839 |
376 | } else if (rc != RXSHV_LVAR) { |
377 | die("Error %i when in _next", rc); |
378 | } else { |
379 | if (trace) |
35bc1fdc |
380 | fprintf(stderr, " rc=%#lX\n", rc); |
760ac839 |
381 | } |
382 | } |
383 | |
384 | int |
385 | _drop(name,...) |
386 | char * name |
387 | CODE: |
388 | { |
389 | int i; |
390 | needvars(items); |
391 | for (i = 0; i < items; ++i) { |
392 | SHVBLOCK * var = &vars[i]; |
393 | STRLEN namelen; |
394 | name = SvPV(ST(i),namelen); |
395 | var->shvcode = RXSHV_DROPV; |
396 | var->shvnext = &vars[i+1]; |
397 | var->shvnamelen = namelen; |
398 | var->shvvaluelen = 0; |
399 | MAKERXSTRING(var->shvname, name, var->shvnamelen); |
400 | MAKERXSTRING(var->shvvalue, NULL, 0); |
401 | } |
402 | vars[items-1].shvnext = NULL; |
35bc1fdc |
403 | RETVAL = (pRexxVariablePool(vars) & ~RXSHV_NEWV) ? FALSE : TRUE; |
760ac839 |
404 | } |
405 | OUTPUT: |
406 | RETVAL |
407 | |
408 | int |
409 | _register(name) |
410 | char * name |
411 | CODE: |
35bc1fdc |
412 | RETVAL = pRexxRegisterFunctionExe(name, PERLCALL); |
760ac839 |
413 | OUTPUT: |
414 | RETVAL |
415 | |
416 | SV* |
417 | REXX_call(cv) |
418 | SV *cv |
419 | PROTOTYPE: & |
420 | |
421 | SV* |
422 | REXX_eval(cmd) |
423 | char *cmd |
424 | |
425 | SV* |
426 | REXX_eval_with(cmd,name,cv) |
427 | char *cmd |
428 | char *name |
429 | SV *cv |