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 | |
28 | static RXSTRING rxcommand = { 9, "RXCOMMAND" }; |
29 | static RXSTRING rxsubroutine = { 12, "RXSUBROUTINE" }; |
30 | static RXSTRING rxfunction = { 11, "RXFUNCTION" }; |
31 | |
32 | static ULONG PERLCALL(PSZ name, ULONG argc, PRXSTRING argv, PSZ queue, PRXSTRING ret); |
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 | { |
dd96f567 |
49 | dTHR; |
760ac839 |
50 | HMODULE hRexx, hRexxAPI; |
51 | BYTE buf[200]; |
52 | LONG APIENTRY (*pRexxStart) (LONG, PRXSTRING, PSZ, PRXSTRING, |
53 | PSZ, LONG, PRXSYSEXIT, PSHORT, PRXSTRING); |
54 | APIRET APIENTRY (*pRexxRegisterFunctionExe) (PSZ, |
55 | RexxFunctionHandler *); |
56 | APIRET APIENTRY (*pRexxDeregisterFunction) (PSZ); |
57 | RXSTRING args[1]; |
58 | RXSTRING inst[2]; |
59 | RXSTRING result; |
60 | USHORT retcode; |
61 | LONG rc; |
62 | SV *res; |
63 | |
41cd3736 |
64 | if (incompartment) |
65 | Perl_die(aTHX_ "Attempt to reenter into REXX compartment"); |
760ac839 |
66 | incompartment = 1; |
67 | |
68 | if (DosLoadModule(buf, sizeof buf, "REXX", &hRexx) |
69 | || DosLoadModule(buf, sizeof buf, "REXXAPI", &hRexxAPI) |
70 | || DosQueryProcAddr(hRexx, 0, "RexxStart", (PFN *)&pRexxStart) |
71 | || DosQueryProcAddr(hRexxAPI, 0, "RexxRegisterFunctionExe", |
72 | (PFN *)&pRexxRegisterFunctionExe) |
73 | || DosQueryProcAddr(hRexxAPI, 0, "RexxDeregisterFunction", |
74 | (PFN *)&pRexxDeregisterFunction)) { |
41cd3736 |
75 | Perl_die(aTHX_ "REXX not available\n"); |
760ac839 |
76 | } |
77 | |
78 | if (handlerName) |
79 | pRexxRegisterFunctionExe(handlerName, handler); |
80 | |
81 | MAKERXSTRING(args[0], NULL, 0); |
82 | MAKERXSTRING(inst[0], cmd, strlen(cmd)); |
83 | MAKERXSTRING(inst[1], NULL, 0); |
84 | MAKERXSTRING(result, NULL, 0); |
85 | rc = pRexxStart(0, args, "StartPerl", inst, "Perl", RXSUBROUTINE, NULL, |
86 | &retcode, &result); |
87 | |
88 | incompartment = 0; |
89 | pRexxDeregisterFunction("StartPerl"); |
90 | DosFreeModule(hRexxAPI); |
91 | DosFreeModule(hRexx); |
92 | if (!RXNULLSTRING(result)) { |
93 | res = newSVpv(RXSTRPTR(result), RXSTRLEN(result)); |
94 | DosFreeMem(RXSTRPTR(result)); |
95 | } else { |
96 | res = NEWSV(729,0); |
97 | } |
6b88bc9c |
98 | if (rc || SvTRUE(GvSV(PL_errgv))) { |
99 | if (SvTRUE(GvSV(PL_errgv))) { |
2d8e6c8d |
100 | STRLEN n_a; |
41cd3736 |
101 | Perl_die(aTHX_ "Error inside perl function called from REXX compartment.\n%s", SvPV(GvSV(PL_errgv), n_a)) ; |
760ac839 |
102 | } |
41cd3736 |
103 | Perl_die(aTHX_ "REXX compartment returned non-zero status %li", rc); |
760ac839 |
104 | } |
105 | |
106 | return res; |
107 | } |
108 | |
109 | static SV* exec_cv; |
110 | |
111 | static ULONG |
112 | PERLSTART(PSZ name, ULONG argc, PRXSTRING argv, PSZ queue, PRXSTRING ret) |
113 | { |
114 | return PERLCALL(NULL, argc, argv, queue, ret); |
115 | } |
116 | |
41cd3736 |
117 | #define in_rexx_compartment() exec_in_REXX(aTHX_ "return StartPerl()\r\n", \ |
760ac839 |
118 | "StartPerl", PERLSTART) |
119 | #define REXX_call(cv) ( exec_cv = (cv), in_rexx_compartment()) |
120 | #define REXX_eval_with(cmd,name,cv) ( exec_cv = (cv), \ |
41cd3736 |
121 | exec_in_REXX(aTHX_ cmd,name,PERLSTART)) |
760ac839 |
122 | #define REXX_eval(cmd) REXX_eval_with(cmd,NULL,NULL) |
123 | |
124 | static ULONG |
125 | PERLCALL(PSZ name, ULONG argc, PRXSTRING argv, PSZ queue, PRXSTRING ret) |
126 | { |
41cd3736 |
127 | dTHX; |
760ac839 |
128 | EXCEPTIONREGISTRATIONRECORD xreg = { NULL, _emx_exception }; |
129 | int i, rc; |
130 | unsigned long len; |
131 | char *str; |
132 | char **arr; |
133 | dSP; |
134 | |
135 | DosSetExceptionHandler(&xreg); |
136 | |
137 | ENTER; |
138 | SAVETMPS; |
924508f0 |
139 | PUSHMARK(SP); |
760ac839 |
140 | |
141 | #if 0 |
142 | if (!my_perl) { |
143 | DosUnsetExceptionHandler(&xreg); |
144 | return 1; |
145 | } |
146 | #endif |
147 | |
148 | if (name) { |
149 | int ac = 0; |
150 | char **arr = alloca((argc + 1) * sizeof(char *)); |
151 | |
152 | for (i = 0; i < argc; ++i) |
153 | arr[ac++] = argv[i].strptr; |
154 | arr[ac] = NULL; |
155 | |
156 | rc = perl_call_argv(name, G_SCALAR | G_EVAL, arr); |
157 | } else if (exec_cv) { |
158 | SV *cv = exec_cv; |
159 | |
160 | exec_cv = NULL; |
161 | rc = perl_call_sv(cv, G_SCALAR | G_EVAL); |
162 | } else rc = -1; |
163 | |
164 | SPAGAIN; |
165 | |
166 | if (rc == 1 && SvOK(TOPs)) { |
167 | str = SvPVx(POPs, len); |
168 | if (len > 256) |
169 | if (DosAllocMem((PPVOID)&ret->strptr, len, PAG_READ|PAG_WRITE|PAG_COMMIT)) { |
170 | DosUnsetExceptionHandler(&xreg); |
171 | return 1; |
172 | } |
173 | memcpy(ret->strptr, str, len); |
174 | ret->strlength = len; |
175 | } |
176 | |
177 | PUTBACK ; |
178 | FREETMPS ; |
179 | LEAVE ; |
180 | |
181 | if (rc != 1) { |
182 | DosUnsetExceptionHandler(&xreg); |
183 | return 1; |
184 | } |
185 | |
186 | |
187 | DosUnsetExceptionHandler(&xreg); |
188 | return 0; |
189 | } |
190 | |
191 | static void |
192 | needstrs(int n) |
193 | { |
194 | if (n > nstrs) { |
195 | if (strs) |
196 | free(strs); |
197 | nstrs = 2 * n; |
198 | strs = malloc(nstrs * sizeof(RXSTRING)); |
199 | } |
200 | } |
201 | |
202 | static void |
203 | needvars(int n) |
204 | { |
205 | if (n > nvars) { |
206 | if (vars) |
207 | free(vars); |
208 | nvars = 2 * n; |
209 | vars = malloc(nvars * sizeof(SHVBLOCK)); |
210 | } |
211 | } |
212 | |
213 | static void |
214 | initialize(void) |
215 | { |
216 | needstrs(8); |
217 | needvars(8); |
218 | trace = getenv("PERL_REXX_DEBUG"); |
219 | } |
220 | |
221 | static int |
41cd3736 |
222 | constant(char *name, int arg) |
760ac839 |
223 | { |
224 | errno = EINVAL; |
225 | return 0; |
226 | } |
227 | |
228 | |
229 | MODULE = OS2::REXX PACKAGE = OS2::REXX |
230 | |
231 | BOOT: |
232 | initialize(); |
233 | |
234 | int |
235 | constant(name,arg) |
236 | char * name |
237 | int arg |
238 | |
760ac839 |
239 | int |
240 | _set(name,value,...) |
241 | char * name |
242 | char * value |
243 | CODE: |
244 | { |
245 | int i; |
246 | int n = (items + 1) / 2; |
247 | ULONG rc; |
248 | needvars(n); |
249 | if (trace) |
250 | fprintf(stderr, "REXXCALL::_set"); |
251 | for (i = 0; i < n; ++i) { |
252 | SHVBLOCK * var = &vars[i]; |
253 | STRLEN namelen; |
254 | STRLEN valuelen; |
255 | name = SvPV(ST(2*i+0),namelen); |
256 | if (2*i+1 < items) { |
257 | value = SvPV(ST(2*i+1),valuelen); |
258 | } |
259 | else { |
260 | value = ""; |
261 | valuelen = 0; |
262 | } |
263 | var->shvcode = RXSHV_SET; |
264 | var->shvnext = &vars[i+1]; |
265 | var->shvnamelen = namelen; |
266 | var->shvvaluelen = valuelen; |
267 | MAKERXSTRING(var->shvname, name, namelen); |
268 | MAKERXSTRING(var->shvvalue, value, valuelen); |
269 | if (trace) |
270 | fprintf(stderr, " %.*s='%.*s'", |
271 | var->shvname.strlength, var->shvname.strptr, |
272 | var->shvvalue.strlength, var->shvvalue.strptr); |
273 | } |
274 | if (trace) |
275 | fprintf(stderr, "\n"); |
276 | vars[n-1].shvnext = NULL; |
277 | rc = RexxVariablePool(vars); |
278 | if (trace) |
279 | fprintf(stderr, " rc=%X\n", rc); |
280 | RETVAL = (rc & ~RXSHV_NEWV) ? FALSE : TRUE; |
281 | } |
282 | OUTPUT: |
283 | RETVAL |
284 | |
285 | void |
286 | _fetch(name, ...) |
287 | char * name |
288 | PPCODE: |
289 | { |
290 | int i; |
291 | ULONG rc; |
924508f0 |
292 | EXTEND(SP, items); |
760ac839 |
293 | needvars(items); |
294 | if (trace) |
295 | fprintf(stderr, "REXXCALL::_fetch"); |
296 | for (i = 0; i < items; ++i) { |
297 | SHVBLOCK * var = &vars[i]; |
298 | STRLEN namelen; |
299 | name = SvPV(ST(i),namelen); |
300 | var->shvcode = RXSHV_FETCH; |
301 | var->shvnext = &vars[i+1]; |
302 | var->shvnamelen = namelen; |
303 | var->shvvaluelen = 0; |
304 | MAKERXSTRING(var->shvname, name, namelen); |
305 | MAKERXSTRING(var->shvvalue, NULL, 0); |
306 | if (trace) |
307 | fprintf(stderr, " '%s'", name); |
308 | } |
309 | if (trace) |
310 | fprintf(stderr, "\n"); |
311 | vars[items-1].shvnext = NULL; |
312 | rc = RexxVariablePool(vars); |
313 | if (!(rc & ~RXSHV_NEWV)) { |
314 | for (i = 0; i < items; ++i) { |
315 | int namelen; |
316 | SHVBLOCK * var = &vars[i]; |
317 | /* returned lengths appear to be swapped */ |
318 | /* but beware of "future bug fixes" */ |
319 | namelen = var->shvvalue.strlength; /* should be */ |
320 | if (var->shvvaluelen < var->shvvalue.strlength) |
321 | namelen = var->shvvaluelen; /* is */ |
322 | if (trace) |
323 | fprintf(stderr, " %.*s='%.*s'\n", |
324 | var->shvname.strlength, var->shvname.strptr, |
325 | namelen, var->shvvalue.strptr); |
326 | if (var->shvret & RXSHV_NEWV || !var->shvvalue.strptr) |
6b88bc9c |
327 | PUSHs(&PL_sv_undef); |
760ac839 |
328 | else |
329 | PUSHs(sv_2mortal(newSVpv(var->shvvalue.strptr, |
330 | namelen))); |
331 | } |
332 | } else { |
333 | if (trace) |
334 | fprintf(stderr, " rc=%X\n", rc); |
335 | } |
336 | } |
337 | |
338 | void |
339 | _next(stem) |
340 | char * stem |
341 | PPCODE: |
342 | { |
343 | SHVBLOCK sv; |
344 | BYTE name[4096]; |
345 | ULONG rc; |
346 | int len = strlen(stem), namelen, valuelen; |
347 | if (trace) |
348 | fprintf(stderr, "REXXCALL::_next stem='%s'\n", stem); |
349 | sv.shvcode = RXSHV_NEXTV; |
350 | sv.shvnext = NULL; |
351 | MAKERXSTRING(sv.shvvalue, NULL, 0); |
352 | do { |
353 | sv.shvnamelen = sizeof name; |
354 | sv.shvvaluelen = 0; |
355 | MAKERXSTRING(sv.shvname, name, sizeof name); |
356 | if (sv.shvvalue.strptr) { |
357 | DosFreeMem(sv.shvvalue.strptr); |
358 | MAKERXSTRING(sv.shvvalue, NULL, 0); |
359 | } |
360 | rc = RexxVariablePool(&sv); |
361 | } while (!rc && memcmp(stem, sv.shvname.strptr, len) != 0); |
362 | if (!rc) { |
924508f0 |
363 | EXTEND(SP, 2); |
760ac839 |
364 | /* returned lengths appear to be swapped */ |
365 | /* but beware of "future bug fixes" */ |
366 | namelen = sv.shvname.strlength; /* should be */ |
367 | if (sv.shvnamelen < sv.shvname.strlength) |
368 | namelen = sv.shvnamelen; /* is */ |
369 | valuelen = sv.shvvalue.strlength; /* should be */ |
370 | if (sv.shvvaluelen < sv.shvvalue.strlength) |
371 | valuelen = sv.shvvaluelen; /* is */ |
372 | if (trace) |
373 | fprintf(stderr, " %.*s='%.*s'\n", |
374 | namelen, sv.shvname.strptr, |
375 | valuelen, sv.shvvalue.strptr); |
376 | PUSHs(sv_2mortal(newSVpv(sv.shvname.strptr+len, namelen-len))); |
377 | if (sv.shvvalue.strptr) { |
378 | PUSHs(sv_2mortal(newSVpv(sv.shvvalue.strptr, valuelen))); |
379 | DosFreeMem(sv.shvvalue.strptr); |
380 | } else |
6b88bc9c |
381 | PUSHs(&PL_sv_undef); |
760ac839 |
382 | } else if (rc != RXSHV_LVAR) { |
383 | die("Error %i when in _next", rc); |
384 | } else { |
385 | if (trace) |
386 | fprintf(stderr, " rc=%X\n", rc); |
387 | } |
388 | } |
389 | |
390 | int |
391 | _drop(name,...) |
392 | char * name |
393 | CODE: |
394 | { |
395 | int i; |
396 | needvars(items); |
397 | for (i = 0; i < items; ++i) { |
398 | SHVBLOCK * var = &vars[i]; |
399 | STRLEN namelen; |
400 | name = SvPV(ST(i),namelen); |
401 | var->shvcode = RXSHV_DROPV; |
402 | var->shvnext = &vars[i+1]; |
403 | var->shvnamelen = namelen; |
404 | var->shvvaluelen = 0; |
405 | MAKERXSTRING(var->shvname, name, var->shvnamelen); |
406 | MAKERXSTRING(var->shvvalue, NULL, 0); |
407 | } |
408 | vars[items-1].shvnext = NULL; |
409 | RETVAL = (RexxVariablePool(vars) & ~RXSHV_NEWV) ? FALSE : TRUE; |
410 | } |
411 | OUTPUT: |
412 | RETVAL |
413 | |
414 | int |
415 | _register(name) |
416 | char * name |
417 | CODE: |
418 | RETVAL = RexxRegisterFunctionExe(name, PERLCALL); |
419 | OUTPUT: |
420 | RETVAL |
421 | |
422 | SV* |
423 | REXX_call(cv) |
424 | SV *cv |
425 | PROTOTYPE: & |
426 | |
427 | SV* |
428 | REXX_eval(cmd) |
429 | char *cmd |
430 | |
431 | SV* |
432 | REXX_eval_with(cmd,name,cv) |
433 | char *cmd |
434 | char *name |
435 | SV *cv |