Commit | Line | Data |
a0d0e21e |
1 | /* util.c |
a687059c |
2 | * |
9607fc9c |
3 | * Copyright (c) 1991-1997, Larry Wall |
a687059c |
4 | * |
d48672a2 |
5 | * You may distribute under the terms of either the GNU General Public |
6 | * License or the Artistic License, as specified in the README file. |
8d063cd8 |
7 | * |
8d063cd8 |
8 | */ |
a0d0e21e |
9 | |
10 | /* |
11 | * "Very useful, no doubt, that was to Saruman; yet it seems that he was |
12 | * not content." --Gandalf |
13 | */ |
8d063cd8 |
14 | |
8d063cd8 |
15 | #include "EXTERN.h" |
8d063cd8 |
16 | #include "perl.h" |
31da6858 |
17 | #include "perlmem.h" |
62b28dd9 |
18 | |
6eb13c3b |
19 | #if !defined(NSIG) || defined(M_UNIX) || defined(M_XENIX) |
a687059c |
20 | #include <signal.h> |
62b28dd9 |
21 | #endif |
a687059c |
22 | |
36477c24 |
23 | #ifndef SIG_ERR |
24 | # define SIG_ERR ((Sighandler_t) -1) |
25 | #endif |
26 | |
bd4080b3 |
27 | /* XXX If this causes problems, set i_unistd=undef in the hint file. */ |
85e6fe83 |
28 | #ifdef I_UNISTD |
8990e307 |
29 | # include <unistd.h> |
30 | #endif |
31 | |
a687059c |
32 | #ifdef I_VFORK |
33 | # include <vfork.h> |
34 | #endif |
35 | |
94b6baf5 |
36 | /* Put this after #includes because fork and vfork prototypes may |
37 | conflict. |
38 | */ |
39 | #ifndef HAS_VFORK |
40 | # define vfork fork |
41 | #endif |
42 | |
fe14fcc3 |
43 | #ifdef I_FCNTL |
44 | # include <fcntl.h> |
45 | #endif |
46 | #ifdef I_SYS_FILE |
47 | # include <sys/file.h> |
48 | #endif |
49 | |
ff68c719 |
50 | #ifdef I_SYS_WAIT |
51 | # include <sys/wait.h> |
52 | #endif |
53 | |
8d063cd8 |
54 | #define FLUSH |
8d063cd8 |
55 | |
a0d0e21e |
56 | #ifdef LEAKTEST |
a0d0e21e |
57 | |
8c52afec |
58 | static void xstat _((int)); |
59 | long xcount[MAXXCOUNT]; |
60 | long lastxcount[MAXXCOUNT]; |
61 | long xycount[MAXXCOUNT][MAXYCOUNT]; |
62 | long lastxycount[MAXXCOUNT][MAXYCOUNT]; |
63 | |
a0d0e21e |
64 | #endif |
a863c7d1 |
65 | |
55497cff |
66 | #ifndef MYMALLOC |
de3bb511 |
67 | |
8d063cd8 |
68 | /* paranoid version of malloc */ |
69 | |
a687059c |
70 | /* NOTE: Do not call the next three routines directly. Use the macros |
71 | * in handy.h, so that we can easily redefine everything to do tracking of |
72 | * allocated hunks back to the original New to track down any memory leaks. |
20cec16a |
73 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
a687059c |
74 | */ |
75 | |
bd4080b3 |
76 | Malloc_t |
f0f333f4 |
77 | safemalloc(MEM_SIZE size) |
8d063cd8 |
78 | { |
bd4080b3 |
79 | Malloc_t ptr; |
55497cff |
80 | #ifdef HAS_64K_LIMIT |
62b28dd9 |
81 | if (size > 0xffff) { |
760ac839 |
82 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH; |
79072805 |
83 | my_exit(1); |
62b28dd9 |
84 | } |
55497cff |
85 | #endif /* HAS_64K_LIMIT */ |
34de22dd |
86 | #ifdef DEBUGGING |
87 | if ((long)size < 0) |
463ee0b2 |
88 | croak("panic: malloc"); |
34de22dd |
89 | #endif |
6ad3d225 |
90 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 |
91 | #if !(defined(I286) || defined(atarist)) |
760ac839 |
92 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
79072805 |
93 | #else |
760ac839 |
94 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,an++,(long)size)); |
8d063cd8 |
95 | #endif |
96 | if (ptr != Nullch) |
97 | return ptr; |
7c0587c8 |
98 | else if (nomemok) |
99 | return Nullch; |
8d063cd8 |
100 | else { |
760ac839 |
101 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 |
102 | my_exit(1); |
4e35701f |
103 | return Nullch; |
8d063cd8 |
104 | } |
105 | /*NOTREACHED*/ |
106 | } |
107 | |
108 | /* paranoid version of realloc */ |
109 | |
bd4080b3 |
110 | Malloc_t |
f0f333f4 |
111 | saferealloc(Malloc_t where,MEM_SIZE size) |
8d063cd8 |
112 | { |
bd4080b3 |
113 | Malloc_t ptr; |
ecfc5424 |
114 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
6ad3d225 |
115 | Malloc_t PerlMem_realloc(); |
ecfc5424 |
116 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 |
117 | |
55497cff |
118 | #ifdef HAS_64K_LIMIT |
5f05dabc |
119 | if (size > 0xffff) { |
120 | PerlIO_printf(PerlIO_stderr(), |
121 | "Reallocation too large: %lx\n", size) FLUSH; |
122 | my_exit(1); |
123 | } |
55497cff |
124 | #endif /* HAS_64K_LIMIT */ |
378cc40b |
125 | if (!where) |
463ee0b2 |
126 | croak("Null realloc"); |
34de22dd |
127 | #ifdef DEBUGGING |
128 | if ((long)size < 0) |
463ee0b2 |
129 | croak("panic: realloc"); |
34de22dd |
130 | #endif |
6ad3d225 |
131 | ptr = PerlMem_realloc(where,size?size:1); /* realloc(0) is NASTY on our system */ |
79072805 |
132 | |
133 | #if !(defined(I286) || defined(atarist)) |
134 | DEBUG_m( { |
760ac839 |
135 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,an++); |
136 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
137 | } ) |
138 | #else |
139 | DEBUG_m( { |
760ac839 |
140 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,an++); |
141 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,an++,(long)size); |
79072805 |
142 | } ) |
8d063cd8 |
143 | #endif |
79072805 |
144 | |
8d063cd8 |
145 | if (ptr != Nullch) |
146 | return ptr; |
7c0587c8 |
147 | else if (nomemok) |
148 | return Nullch; |
8d063cd8 |
149 | else { |
760ac839 |
150 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
79072805 |
151 | my_exit(1); |
4e35701f |
152 | return Nullch; |
8d063cd8 |
153 | } |
154 | /*NOTREACHED*/ |
155 | } |
156 | |
157 | /* safe version of free */ |
158 | |
54310121 |
159 | Free_t |
f0f333f4 |
160 | safefree(Malloc_t where) |
8d063cd8 |
161 | { |
79072805 |
162 | #if !(defined(I286) || defined(atarist)) |
f0f333f4 |
163 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,an++)); |
79072805 |
164 | #else |
f0f333f4 |
165 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,an++)); |
8d063cd8 |
166 | #endif |
378cc40b |
167 | if (where) { |
de3bb511 |
168 | /*SUPPRESS 701*/ |
6ad3d225 |
169 | PerlMem_free(where); |
378cc40b |
170 | } |
8d063cd8 |
171 | } |
172 | |
1050c9ca |
173 | /* safe version of calloc */ |
174 | |
bd4080b3 |
175 | Malloc_t |
f0f333f4 |
176 | safecalloc(MEM_SIZE count, MEM_SIZE size) |
1050c9ca |
177 | { |
bd4080b3 |
178 | Malloc_t ptr; |
1050c9ca |
179 | |
55497cff |
180 | #ifdef HAS_64K_LIMIT |
5f05dabc |
181 | if (size * count > 0xffff) { |
182 | PerlIO_printf(PerlIO_stderr(), |
183 | "Allocation too large: %lx\n", size * count) FLUSH; |
184 | my_exit(1); |
185 | } |
55497cff |
186 | #endif /* HAS_64K_LIMIT */ |
1050c9ca |
187 | #ifdef DEBUGGING |
188 | if ((long)size < 0 || (long)count < 0) |
189 | croak("panic: calloc"); |
190 | #endif |
0b7c1c42 |
191 | size *= count; |
6ad3d225 |
192 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
1050c9ca |
193 | #if !(defined(I286) || defined(atarist)) |
fb73857a |
194 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
195 | #else |
fb73857a |
196 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,an++,(long)count,(long)size)); |
1050c9ca |
197 | #endif |
1050c9ca |
198 | if (ptr != Nullch) { |
199 | memset((void*)ptr, 0, size); |
200 | return ptr; |
201 | } |
202 | else if (nomemok) |
203 | return Nullch; |
204 | else { |
760ac839 |
205 | PerlIO_puts(PerlIO_stderr(),no_mem) FLUSH; |
1050c9ca |
206 | my_exit(1); |
4e35701f |
207 | return Nullch; |
1050c9ca |
208 | } |
209 | /*NOTREACHED*/ |
210 | } |
211 | |
55497cff |
212 | #endif /* !MYMALLOC */ |
de3bb511 |
213 | |
a687059c |
214 | #ifdef LEAKTEST |
215 | |
8c52afec |
216 | struct mem_test_strut { |
217 | union { |
218 | long type; |
219 | char c[2]; |
220 | } u; |
221 | long size; |
222 | }; |
223 | |
224 | # define ALIGN sizeof(struct mem_test_strut) |
225 | |
226 | # define sizeof_chunk(ch) (((struct mem_test_strut*) (ch))->size) |
227 | # define typeof_chunk(ch) \ |
228 | (((struct mem_test_strut*) (ch))->u.c[0] + ((struct mem_test_strut*) (ch))->u.c[1]*100) |
229 | # define set_typeof_chunk(ch,t) \ |
230 | (((struct mem_test_strut*) (ch))->u.c[0] = t % 100, ((struct mem_test_strut*) (ch))->u.c[1] = t / 100) |
231 | #define SIZE_TO_Y(size) ( (size) > MAXY_SIZE \ |
232 | ? MAXYCOUNT - 1 \ |
233 | : ( (size) > 40 \ |
234 | ? ((size) - 1)/8 + 5 \ |
235 | : ((size) - 1)/4)) |
8d063cd8 |
236 | |
bd4080b3 |
237 | Malloc_t |
f0f333f4 |
238 | safexmalloc(I32 x, MEM_SIZE size) |
8d063cd8 |
239 | { |
8c52afec |
240 | register char* where = (char*)safemalloc(size + ALIGN); |
8d063cd8 |
241 | |
8c52afec |
242 | xcount[x] += size; |
243 | xycount[x][SIZE_TO_Y(size)]++; |
244 | set_typeof_chunk(where, x); |
245 | sizeof_chunk(where) = size; |
246 | return (Malloc_t)(where + ALIGN); |
8d063cd8 |
247 | } |
8d063cd8 |
248 | |
bd4080b3 |
249 | Malloc_t |
8c52afec |
250 | safexrealloc(Malloc_t wh, MEM_SIZE size) |
a687059c |
251 | { |
8c52afec |
252 | char *where = (char*)wh; |
253 | |
254 | if (!wh) |
255 | return safexmalloc(0,size); |
256 | |
257 | { |
258 | MEM_SIZE old = sizeof_chunk(where - ALIGN); |
259 | int t = typeof_chunk(where - ALIGN); |
260 | register char* new = (char*)saferealloc(where - ALIGN, size + ALIGN); |
261 | |
262 | xycount[t][SIZE_TO_Y(old)]--; |
263 | xycount[t][SIZE_TO_Y(size)]++; |
264 | xcount[t] += size - old; |
265 | sizeof_chunk(new) = size; |
266 | return (Malloc_t)(new + ALIGN); |
267 | } |
a687059c |
268 | } |
269 | |
270 | void |
8c52afec |
271 | safexfree(Malloc_t wh) |
a687059c |
272 | { |
79072805 |
273 | I32 x; |
8c52afec |
274 | char *where = (char*)wh; |
275 | MEM_SIZE size; |
276 | |
a687059c |
277 | if (!where) |
278 | return; |
279 | where -= ALIGN; |
8c52afec |
280 | size = sizeof_chunk(where); |
a687059c |
281 | x = where[0] + 100 * where[1]; |
8c52afec |
282 | xcount[x] -= size; |
283 | xycount[x][SIZE_TO_Y(size)]--; |
a687059c |
284 | safefree(where); |
285 | } |
286 | |
bd4080b3 |
287 | Malloc_t |
f0f333f4 |
288 | safexcalloc(I32 x,MEM_SIZE count, MEM_SIZE size) |
1050c9ca |
289 | { |
8c52afec |
290 | register char * where = (char*)safexmalloc(x, size * count + ALIGN); |
291 | xcount[x] += size; |
292 | xycount[x][SIZE_TO_Y(size)]++; |
293 | memset((void*)(where + ALIGN), 0, size * count); |
294 | set_typeof_chunk(where, x); |
295 | sizeof_chunk(where) = size; |
296 | return (Malloc_t)(where + ALIGN); |
1050c9ca |
297 | } |
298 | |
7c0587c8 |
299 | static void |
8c52afec |
300 | xstat(int flag) |
8d063cd8 |
301 | { |
8c52afec |
302 | register I32 i, j, total = 0; |
303 | I32 subtot[MAXYCOUNT]; |
8d063cd8 |
304 | |
8c52afec |
305 | for (j = 0; j < MAXYCOUNT; j++) { |
306 | subtot[j] = 0; |
307 | } |
308 | |
309 | PerlIO_printf(PerlIO_stderr(), " Id subtot 4 8 12 16 20 24 28 32 36 40 48 56 64 72 80 80+\n", total); |
a687059c |
310 | for (i = 0; i < MAXXCOUNT; i++) { |
8c52afec |
311 | total += xcount[i]; |
312 | for (j = 0; j < MAXYCOUNT; j++) { |
313 | subtot[j] += xycount[i][j]; |
314 | } |
315 | if (flag == 0 |
316 | ? xcount[i] /* Have something */ |
317 | : (flag == 2 |
318 | ? xcount[i] != lastxcount[i] /* Changed */ |
319 | : xcount[i] > lastxcount[i])) { /* Growed */ |
320 | PerlIO_printf(PerlIO_stderr(),"%2d %02d %7ld ", i / 100, i % 100, |
321 | flag == 2 ? xcount[i] - lastxcount[i] : xcount[i]); |
a687059c |
322 | lastxcount[i] = xcount[i]; |
8c52afec |
323 | for (j = 0; j < MAXYCOUNT; j++) { |
324 | if ( flag == 0 |
325 | ? xycount[i][j] /* Have something */ |
326 | : (flag == 2 |
327 | ? xycount[i][j] != lastxycount[i][j] /* Changed */ |
328 | : xycount[i][j] > lastxycount[i][j])) { /* Growed */ |
329 | PerlIO_printf(PerlIO_stderr(),"%3ld ", |
330 | flag == 2 |
331 | ? xycount[i][j] - lastxycount[i][j] |
332 | : xycount[i][j]); |
333 | lastxycount[i][j] = xycount[i][j]; |
334 | } else { |
335 | PerlIO_printf(PerlIO_stderr(), " . ", xycount[i][j]); |
336 | } |
337 | } |
338 | PerlIO_printf(PerlIO_stderr(), "\n"); |
339 | } |
340 | } |
341 | if (flag != 2) { |
342 | PerlIO_printf(PerlIO_stderr(), "Total %7ld ", total); |
343 | for (j = 0; j < MAXYCOUNT; j++) { |
344 | if (subtot[j]) { |
345 | PerlIO_printf(PerlIO_stderr(), "%3ld ", subtot[j]); |
346 | } else { |
347 | PerlIO_printf(PerlIO_stderr(), " . "); |
348 | } |
8d063cd8 |
349 | } |
8c52afec |
350 | PerlIO_printf(PerlIO_stderr(), "\n"); |
8d063cd8 |
351 | } |
8d063cd8 |
352 | } |
a687059c |
353 | |
354 | #endif /* LEAKTEST */ |
8d063cd8 |
355 | |
356 | /* copy a string up to some (non-backslashed) delimiter, if any */ |
357 | |
358 | char * |
8ac85365 |
359 | delimcpy(register char *to, register char *toend, register char *from, register char *fromend, register int delim, I32 *retlen) |
8d063cd8 |
360 | { |
fc36a67e |
361 | register I32 tolen; |
362 | for (tolen = 0; from < fromend; from++, tolen++) { |
378cc40b |
363 | if (*from == '\\') { |
364 | if (from[1] == delim) |
365 | from++; |
fc36a67e |
366 | else { |
367 | if (to < toend) |
368 | *to++ = *from; |
369 | tolen++; |
370 | from++; |
371 | } |
378cc40b |
372 | } |
bedebaa5 |
373 | else if (*from == delim) |
8d063cd8 |
374 | break; |
fc36a67e |
375 | if (to < toend) |
376 | *to++ = *from; |
8d063cd8 |
377 | } |
bedebaa5 |
378 | if (to < toend) |
379 | *to = '\0'; |
fc36a67e |
380 | *retlen = tolen; |
8d063cd8 |
381 | return from; |
382 | } |
383 | |
384 | /* return ptr to little string in big string, NULL if not found */ |
378cc40b |
385 | /* This routine was donated by Corey Satten. */ |
8d063cd8 |
386 | |
387 | char * |
8ac85365 |
388 | instr(register char *big, register char *little) |
378cc40b |
389 | { |
390 | register char *s, *x; |
79072805 |
391 | register I32 first; |
378cc40b |
392 | |
a687059c |
393 | if (!little) |
394 | return big; |
395 | first = *little++; |
378cc40b |
396 | if (!first) |
397 | return big; |
398 | while (*big) { |
399 | if (*big++ != first) |
400 | continue; |
401 | for (x=big,s=little; *s; /**/ ) { |
402 | if (!*x) |
403 | return Nullch; |
404 | if (*s++ != *x++) { |
405 | s--; |
406 | break; |
407 | } |
408 | } |
409 | if (!*s) |
410 | return big-1; |
411 | } |
412 | return Nullch; |
413 | } |
8d063cd8 |
414 | |
a687059c |
415 | /* same as instr but allow embedded nulls */ |
416 | |
417 | char * |
8ac85365 |
418 | ninstr(register char *big, register char *bigend, char *little, char *lend) |
8d063cd8 |
419 | { |
a687059c |
420 | register char *s, *x; |
79072805 |
421 | register I32 first = *little; |
a687059c |
422 | register char *littleend = lend; |
378cc40b |
423 | |
a0d0e21e |
424 | if (!first && little >= littleend) |
a687059c |
425 | return big; |
de3bb511 |
426 | if (bigend - big < littleend - little) |
427 | return Nullch; |
a687059c |
428 | bigend -= littleend - little++; |
429 | while (big <= bigend) { |
430 | if (*big++ != first) |
431 | continue; |
432 | for (x=big,s=little; s < littleend; /**/ ) { |
433 | if (*s++ != *x++) { |
434 | s--; |
435 | break; |
436 | } |
437 | } |
438 | if (s >= littleend) |
439 | return big-1; |
378cc40b |
440 | } |
a687059c |
441 | return Nullch; |
442 | } |
443 | |
444 | /* reverse of the above--find last substring */ |
445 | |
446 | char * |
8ac85365 |
447 | rninstr(register char *big, char *bigend, char *little, char *lend) |
a687059c |
448 | { |
449 | register char *bigbeg; |
450 | register char *s, *x; |
79072805 |
451 | register I32 first = *little; |
a687059c |
452 | register char *littleend = lend; |
453 | |
a0d0e21e |
454 | if (!first && little >= littleend) |
a687059c |
455 | return bigend; |
456 | bigbeg = big; |
457 | big = bigend - (littleend - little++); |
458 | while (big >= bigbeg) { |
459 | if (*big-- != first) |
460 | continue; |
461 | for (x=big+2,s=little; s < littleend; /**/ ) { |
462 | if (*s++ != *x++) { |
463 | s--; |
464 | break; |
465 | } |
466 | } |
467 | if (s >= littleend) |
468 | return big+1; |
378cc40b |
469 | } |
a687059c |
470 | return Nullch; |
378cc40b |
471 | } |
a687059c |
472 | |
bbce6d69 |
473 | /* |
474 | * Set up for a new ctype locale. |
475 | */ |
55497cff |
476 | void |
8ac85365 |
477 | perl_new_ctype(char *newctype) |
ef7eada9 |
478 | { |
36477c24 |
479 | #ifdef USE_LOCALE_CTYPE |
480 | |
bbce6d69 |
481 | int i; |
ef7eada9 |
482 | |
bbce6d69 |
483 | for (i = 0; i < 256; i++) { |
484 | if (isUPPER_LC(i)) |
485 | fold_locale[i] = toLOWER_LC(i); |
486 | else if (isLOWER_LC(i)) |
487 | fold_locale[i] = toUPPER_LC(i); |
488 | else |
489 | fold_locale[i] = i; |
490 | } |
bbce6d69 |
491 | |
36477c24 |
492 | #endif /* USE_LOCALE_CTYPE */ |
493 | } |
bbce6d69 |
494 | |
495 | /* |
496 | * Set up for a new collation locale. |
497 | */ |
498 | void |
8ac85365 |
499 | perl_new_collate(char *newcoll) |
bbce6d69 |
500 | { |
36477c24 |
501 | #ifdef USE_LOCALE_COLLATE |
502 | |
bbce6d69 |
503 | if (! newcoll) { |
504 | if (collation_name) { |
505 | ++collation_ix; |
506 | Safefree(collation_name); |
507 | collation_name = NULL; |
508 | collation_standard = TRUE; |
bbce6d69 |
509 | collxfrm_base = 0; |
510 | collxfrm_mult = 2; |
bbce6d69 |
511 | } |
512 | return; |
513 | } |
514 | |
515 | if (! collation_name || strNE(collation_name, newcoll)) { |
516 | ++collation_ix; |
517 | Safefree(collation_name); |
518 | collation_name = savepv(newcoll); |
ff68c719 |
519 | collation_standard = (strEQ(newcoll, "C") || strEQ(newcoll, "POSIX")); |
bbce6d69 |
520 | |
bbce6d69 |
521 | { |
522 | /* 2: at most so many chars ('a', 'b'). */ |
523 | /* 50: surely no system expands a char more. */ |
524 | #define XFRMBUFSIZE (2 * 50) |
525 | char xbuf[XFRMBUFSIZE]; |
526 | Size_t fa = strxfrm(xbuf, "a", XFRMBUFSIZE); |
527 | Size_t fb = strxfrm(xbuf, "ab", XFRMBUFSIZE); |
528 | SSize_t mult = fb - fa; |
529 | if (mult < 1) |
530 | croak("strxfrm() gets absurd"); |
531 | collxfrm_base = (fa > mult) ? (fa - mult) : 0; |
532 | collxfrm_mult = mult; |
533 | } |
bbce6d69 |
534 | } |
bbce6d69 |
535 | |
36477c24 |
536 | #endif /* USE_LOCALE_COLLATE */ |
537 | } |
bbce6d69 |
538 | |
539 | /* |
540 | * Set up for a new numeric locale. |
541 | */ |
542 | void |
8ac85365 |
543 | perl_new_numeric(char *newnum) |
bbce6d69 |
544 | { |
36477c24 |
545 | #ifdef USE_LOCALE_NUMERIC |
546 | |
bbce6d69 |
547 | if (! newnum) { |
548 | if (numeric_name) { |
549 | Safefree(numeric_name); |
550 | numeric_name = NULL; |
551 | numeric_standard = TRUE; |
552 | numeric_local = TRUE; |
553 | } |
554 | return; |
555 | } |
556 | |
557 | if (! numeric_name || strNE(numeric_name, newnum)) { |
558 | Safefree(numeric_name); |
559 | numeric_name = savepv(newnum); |
ff68c719 |
560 | numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); |
bbce6d69 |
561 | numeric_local = TRUE; |
562 | } |
36477c24 |
563 | |
564 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
565 | } |
566 | |
567 | void |
8ac85365 |
568 | perl_set_numeric_standard(void) |
bbce6d69 |
569 | { |
5f05dabc |
570 | #ifdef USE_LOCALE_NUMERIC |
571 | |
bbce6d69 |
572 | if (! numeric_standard) { |
573 | setlocale(LC_NUMERIC, "C"); |
574 | numeric_standard = TRUE; |
575 | numeric_local = FALSE; |
576 | } |
5f05dabc |
577 | |
578 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
579 | } |
580 | |
581 | void |
8ac85365 |
582 | perl_set_numeric_local(void) |
bbce6d69 |
583 | { |
5f05dabc |
584 | #ifdef USE_LOCALE_NUMERIC |
585 | |
bbce6d69 |
586 | if (! numeric_local) { |
587 | setlocale(LC_NUMERIC, numeric_name); |
588 | numeric_standard = FALSE; |
589 | numeric_local = TRUE; |
590 | } |
bbce6d69 |
591 | |
36477c24 |
592 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc |
593 | } |
36477c24 |
594 | |
bbce6d69 |
595 | |
36477c24 |
596 | /* |
597 | * Initialize locale awareness. |
598 | */ |
f0c5b223 |
599 | int |
8ac85365 |
600 | perl_init_i18nl10n(int printwarn) |
f0c5b223 |
601 | { |
602 | int ok = 1; |
603 | /* returns |
604 | * 1 = set ok or not applicable, |
605 | * 0 = fallback to C locale, |
606 | * -1 = fallback to C locale failed |
607 | */ |
bbce6d69 |
608 | |
36477c24 |
609 | #ifdef USE_LOCALE |
bbce6d69 |
610 | |
36477c24 |
611 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
612 | char *curctype = NULL; |
36477c24 |
613 | #endif /* USE_LOCALE_CTYPE */ |
614 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
615 | char *curcoll = NULL; |
36477c24 |
616 | #endif /* USE_LOCALE_COLLATE */ |
617 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
618 | char *curnum = NULL; |
36477c24 |
619 | #endif /* USE_LOCALE_NUMERIC */ |
76e3520e |
620 | char *lc_all = PerlEnv_getenv("LC_ALL"); |
621 | char *lang = PerlEnv_getenv("LANG"); |
bbce6d69 |
622 | bool setlocale_failure = FALSE; |
f0c5b223 |
623 | |
02b32252 |
624 | #ifdef LOCALE_ENVIRON_REQUIRED |
625 | |
626 | /* |
627 | * Ultrix setlocale(..., "") fails if there are no environment |
628 | * variables from which to get a locale name. |
629 | */ |
630 | |
631 | bool done = FALSE; |
632 | |
633 | #ifdef LC_ALL |
634 | if (lang) { |
635 | if (setlocale(LC_ALL, "")) |
636 | done = TRUE; |
637 | else |
638 | setlocale_failure = TRUE; |
639 | } |
640 | if (!setlocale_failure) |
641 | #endif /* LC_ALL */ |
642 | { |
643 | #ifdef USE_LOCALE_CTYPE |
644 | if (! (curctype = setlocale(LC_CTYPE, |
76e3520e |
645 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) |
02b32252 |
646 | ? "" : Nullch))) |
647 | setlocale_failure = TRUE; |
648 | #endif /* USE_LOCALE_CTYPE */ |
649 | #ifdef USE_LOCALE_COLLATE |
650 | if (! (curcoll = setlocale(LC_COLLATE, |
76e3520e |
651 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) |
02b32252 |
652 | ? "" : Nullch))) |
653 | setlocale_failure = TRUE; |
654 | #endif /* USE_LOCALE_COLLATE */ |
655 | #ifdef USE_LOCALE_NUMERIC |
656 | if (! (curnum = setlocale(LC_NUMERIC, |
76e3520e |
657 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) |
02b32252 |
658 | ? "" : Nullch))) |
659 | setlocale_failure = TRUE; |
660 | #endif /* USE_LOCALE_NUMERIC */ |
661 | } |
662 | |
663 | #else /* !LOCALE_ENVIRON_REQUIRED */ |
664 | |
bbce6d69 |
665 | #ifdef LC_ALL |
5f05dabc |
666 | |
bbce6d69 |
667 | if (! setlocale(LC_ALL, "")) |
668 | setlocale_failure = TRUE; |
5f05dabc |
669 | else { |
670 | #ifdef USE_LOCALE_CTYPE |
671 | curctype = setlocale(LC_CTYPE, Nullch); |
672 | #endif /* USE_LOCALE_CTYPE */ |
673 | #ifdef USE_LOCALE_COLLATE |
674 | curcoll = setlocale(LC_COLLATE, Nullch); |
675 | #endif /* USE_LOCALE_COLLATE */ |
676 | #ifdef USE_LOCALE_NUMERIC |
677 | curnum = setlocale(LC_NUMERIC, Nullch); |
678 | #endif /* USE_LOCALE_NUMERIC */ |
679 | } |
680 | |
681 | #else /* !LC_ALL */ |
bbce6d69 |
682 | |
36477c24 |
683 | #ifdef USE_LOCALE_CTYPE |
5f05dabc |
684 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
bbce6d69 |
685 | setlocale_failure = TRUE; |
36477c24 |
686 | #endif /* USE_LOCALE_CTYPE */ |
687 | #ifdef USE_LOCALE_COLLATE |
5f05dabc |
688 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
bbce6d69 |
689 | setlocale_failure = TRUE; |
36477c24 |
690 | #endif /* USE_LOCALE_COLLATE */ |
691 | #ifdef USE_LOCALE_NUMERIC |
5f05dabc |
692 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
bbce6d69 |
693 | setlocale_failure = TRUE; |
36477c24 |
694 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
695 | |
5f05dabc |
696 | #endif /* LC_ALL */ |
697 | |
02b32252 |
698 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
699 | |
5f05dabc |
700 | if (setlocale_failure) { |
701 | char *p; |
702 | bool locwarn = (printwarn > 1 || |
703 | printwarn && |
76e3520e |
704 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p))); |
20cec16a |
705 | |
5f05dabc |
706 | if (locwarn) { |
707 | #ifdef LC_ALL |
708 | |
709 | PerlIO_printf(PerlIO_stderr(), |
710 | "perl: warning: Setting locale failed.\n"); |
711 | |
712 | #else /* !LC_ALL */ |
713 | |
ef7eada9 |
714 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
715 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 |
716 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
717 | if (! curctype) |
5f05dabc |
718 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 |
719 | #endif /* USE_LOCALE_CTYPE */ |
720 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
721 | if (! curcoll) |
5f05dabc |
722 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 |
723 | #endif /* USE_LOCALE_COLLATE */ |
724 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
725 | if (! curnum) |
5f05dabc |
726 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 |
727 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
728 | PerlIO_printf(PerlIO_stderr(), "\n"); |
729 | |
5f05dabc |
730 | #endif /* LC_ALL */ |
731 | |
760ac839 |
732 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
733 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 |
734 | |
735 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
736 | "\tLC_ALL = %c%s%c,\n", |
737 | lc_all ? '"' : '(', |
738 | lc_all ? lc_all : "unset", |
739 | lc_all ? '"' : ')'); |
5f05dabc |
740 | |
741 | { |
742 | char **e; |
743 | for (e = environ; *e; e++) { |
744 | if (strnEQ(*e, "LC_", 3) |
745 | && strnNE(*e, "LC_ALL=", 7) |
746 | && (p = strchr(*e, '='))) |
747 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", |
fb73857a |
748 | (int)(p - *e), *e, p + 1); |
5f05dabc |
749 | } |
750 | } |
751 | |
ef7eada9 |
752 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
753 | "\tLANG = %c%s%c\n", |
5f05dabc |
754 | lang ? '"' : '(', |
bbce6d69 |
755 | lang ? lang : "unset", |
756 | lang ? '"' : ')'); |
ef7eada9 |
757 | |
bbce6d69 |
758 | PerlIO_printf(PerlIO_stderr(), |
759 | " are supported and installed on your system.\n"); |
5f05dabc |
760 | } |
ef7eada9 |
761 | |
5f05dabc |
762 | #ifdef LC_ALL |
763 | |
764 | if (setlocale(LC_ALL, "C")) { |
765 | if (locwarn) |
766 | PerlIO_printf(PerlIO_stderr(), |
767 | "perl: warning: Falling back to the standard locale (\"C\").\n"); |
bbce6d69 |
768 | ok = 0; |
ef7eada9 |
769 | } |
5f05dabc |
770 | else { |
771 | if (locwarn) |
772 | PerlIO_printf(PerlIO_stderr(), |
773 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); |
774 | ok = -1; |
775 | } |
bbce6d69 |
776 | |
5f05dabc |
777 | #else /* ! LC_ALL */ |
778 | |
779 | if (0 |
36477c24 |
780 | #ifdef USE_LOCALE_CTYPE |
5f05dabc |
781 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 |
782 | #endif /* USE_LOCALE_CTYPE */ |
783 | #ifdef USE_LOCALE_COLLATE |
5f05dabc |
784 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 |
785 | #endif /* USE_LOCALE_COLLATE */ |
786 | #ifdef USE_LOCALE_NUMERIC |
5f05dabc |
787 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 |
788 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc |
789 | ) |
790 | { |
791 | if (locwarn) |
bbce6d69 |
792 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc |
793 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
794 | ok = -1; |
bbce6d69 |
795 | } |
5f05dabc |
796 | |
bbce6d69 |
797 | #endif /* ! LC_ALL */ |
5f05dabc |
798 | |
799 | #ifdef USE_LOCALE_CTYPE |
800 | curctype = setlocale(LC_CTYPE, Nullch); |
801 | #endif /* USE_LOCALE_CTYPE */ |
802 | #ifdef USE_LOCALE_COLLATE |
803 | curcoll = setlocale(LC_COLLATE, Nullch); |
804 | #endif /* USE_LOCALE_COLLATE */ |
805 | #ifdef USE_LOCALE_NUMERIC |
806 | curnum = setlocale(LC_NUMERIC, Nullch); |
807 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
808 | } |
809 | |
36477c24 |
810 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
811 | perl_new_ctype(curctype); |
36477c24 |
812 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 |
813 | |
36477c24 |
814 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
815 | perl_new_collate(curcoll); |
36477c24 |
816 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
817 | |
36477c24 |
818 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
819 | perl_new_numeric(curnum); |
36477c24 |
820 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
821 | |
36477c24 |
822 | #endif /* USE_LOCALE */ |
ef7eada9 |
823 | |
f0c5b223 |
824 | return ok; |
825 | } |
826 | |
bbce6d69 |
827 | /* Backwards compatibility. */ |
828 | int |
8ac85365 |
829 | perl_init_i18nl14n(int printwarn) |
bbce6d69 |
830 | { |
5f05dabc |
831 | return perl_init_i18nl10n(printwarn); |
bbce6d69 |
832 | } |
ef7eada9 |
833 | |
36477c24 |
834 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 |
835 | |
bbce6d69 |
836 | /* |
837 | * mem_collxfrm() is a bit like strxfrm() but with two important |
838 | * differences. First, it handles embedded NULs. Second, it allocates |
839 | * a bit more memory than needed for the transformed data itself. |
840 | * The real transformed data begins at offset sizeof(collationix). |
841 | * Please see sv_collxfrm() to see how this is used. |
842 | */ |
843 | char * |
8ac85365 |
844 | mem_collxfrm(const char *s, STRLEN len, STRLEN *xlen) |
bbce6d69 |
845 | { |
846 | char *xbuf; |
76e3520e |
847 | STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ |
bbce6d69 |
848 | |
849 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ |
850 | /* the +1 is for the terminating NUL. */ |
851 | |
76e3520e |
852 | xAlloc = sizeof(collation_ix) + collxfrm_base + (collxfrm_mult * len) + 1; |
853 | New(171, xbuf, xAlloc, char); |
bbce6d69 |
854 | if (! xbuf) |
855 | goto bad; |
856 | |
857 | *(U32*)xbuf = collation_ix; |
858 | xout = sizeof(collation_ix); |
859 | for (xin = 0; xin < len; ) { |
860 | SSize_t xused; |
861 | |
862 | for (;;) { |
76e3520e |
863 | xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); |
bbce6d69 |
864 | if (xused == -1) |
865 | goto bad; |
76e3520e |
866 | if (xused < xAlloc - xout) |
bbce6d69 |
867 | break; |
76e3520e |
868 | xAlloc = (2 * xAlloc) + 1; |
869 | Renew(xbuf, xAlloc, char); |
bbce6d69 |
870 | if (! xbuf) |
871 | goto bad; |
872 | } |
ef7eada9 |
873 | |
bbce6d69 |
874 | xin += strlen(s + xin) + 1; |
875 | xout += xused; |
876 | |
877 | /* Embedded NULs are understood but silently skipped |
878 | * because they make no sense in locale collation. */ |
879 | } |
ef7eada9 |
880 | |
bbce6d69 |
881 | xbuf[xout] = '\0'; |
882 | *xlen = xout - sizeof(collation_ix); |
883 | return xbuf; |
884 | |
885 | bad: |
886 | Safefree(xbuf); |
887 | *xlen = 0; |
888 | return NULL; |
ef7eada9 |
889 | } |
890 | |
36477c24 |
891 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
892 | |
378cc40b |
893 | void |
2779dcf1 |
894 | fbm_compile(SV *sv, U32 flags /* not used yet */) |
378cc40b |
895 | { |
a687059c |
896 | register unsigned char *s; |
897 | register unsigned char *table; |
79072805 |
898 | register U32 i; |
899 | register U32 len = SvCUR(sv); |
900 | I32 rarest = 0; |
901 | U32 frequency = 256; |
902 | |
c277df42 |
903 | sv_upgrade(sv, SVt_PVBM); |
904 | if (len > 255 || len == 0) /* TAIL might be on on a zero-length string. */ |
748a9306 |
905 | return; /* can't have offsets that big */ |
02128f11 |
906 | if (len > 2) { |
907 | Sv_Grow(sv,len + 258); |
908 | table = (unsigned char*)(SvPVX(sv) + len + 1); |
909 | s = table - 2; |
910 | for (i = 0; i < 256; i++) { |
911 | table[i] = len; |
912 | } |
913 | i = 0; |
914 | while (s >= (unsigned char*)(SvPVX(sv))) |
915 | { |
916 | if (table[*s] == len) |
917 | table[*s] = i; |
918 | s--,i++; |
919 | } |
378cc40b |
920 | } |
bbce6d69 |
921 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 |
922 | SvVALID_on(sv); |
378cc40b |
923 | |
463ee0b2 |
924 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 |
925 | for (i = 0; i < len; i++) { |
926 | if (freq[s[i]] < frequency) { |
927 | rarest = i; |
928 | frequency = freq[s[i]]; |
378cc40b |
929 | } |
930 | } |
79072805 |
931 | BmRARE(sv) = s[rarest]; |
932 | BmPREVIOUS(sv) = rarest; |
760ac839 |
933 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b |
934 | } |
935 | |
378cc40b |
936 | char * |
8ac85365 |
937 | fbm_instr(unsigned char *big, register unsigned char *bigend, SV *littlestr) |
378cc40b |
938 | { |
a687059c |
939 | register unsigned char *s; |
79072805 |
940 | register I32 tmp; |
941 | register I32 littlelen; |
a687059c |
942 | register unsigned char *little; |
943 | register unsigned char *table; |
944 | register unsigned char *olds; |
945 | register unsigned char *oldlittle; |
378cc40b |
946 | |
79072805 |
947 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
a0d0e21e |
948 | STRLEN len; |
949 | char *l = SvPV(littlestr,len); |
c277df42 |
950 | if (!len) { |
02128f11 |
951 | if (SvTAIL(littlestr)) { /* Can be only 0-len constant |
952 | substr => we can ignore SvVALID */ |
953 | if (multiline) { |
954 | char *t = "\n"; |
3fe6f2dc |
955 | if ((s = (unsigned char*)ninstr((char*)big, (char*)bigend, |
956 | t, t + len))) { |
957 | return (char*)s; |
958 | } |
02128f11 |
959 | } |
c277df42 |
960 | if (bigend > big && bigend[-1] == '\n') |
161b471a |
961 | return (char *)(bigend - 1); |
c277df42 |
962 | else |
161b471a |
963 | return (char *) bigend; |
c277df42 |
964 | } |
d48672a2 |
965 | return (char*)big; |
c277df42 |
966 | } |
a0d0e21e |
967 | return ninstr((char*)big,(char*)bigend, l, l + len); |
d48672a2 |
968 | } |
378cc40b |
969 | |
79072805 |
970 | littlelen = SvCUR(littlestr); |
971 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ |
0f85fab0 |
972 | if (littlelen > bigend - big) |
973 | return Nullch; |
463ee0b2 |
974 | little = (unsigned char*)SvPVX(littlestr); |
bbce6d69 |
975 | s = bigend - littlelen; |
02128f11 |
976 | if (s > big |
977 | && bigend[-1] == '\n' |
978 | && s[-1] == *little && memEQ((char*)s - 1,(char*)little,littlelen)) |
979 | return (char*)s - 1; /* how sweet it is */ |
980 | else if (*s == *little && memEQ((char*)s,(char*)little,littlelen)) |
bbce6d69 |
981 | return (char*)s; /* how sweet it is */ |
02128f11 |
982 | return Nullch; |
983 | } |
984 | if (littlelen <= 2) { |
985 | unsigned char c1 = (unsigned char)SvPVX(littlestr)[0]; |
986 | unsigned char c2 = (unsigned char)SvPVX(littlestr)[1]; |
987 | /* This may do extra comparisons if littlelen == 2, but this |
988 | should be hidden in the noise since we do less indirection. */ |
989 | |
990 | s = big; |
991 | bigend -= littlelen; |
992 | while (s <= bigend) { |
993 | if (s[0] == c1 |
994 | && (littlelen == 1 || s[1] == c2) |
995 | && (!SvTAIL(littlestr) |
996 | || s == bigend |
997 | || s[littlelen] == '\n')) /* Automatically multiline */ |
3fe6f2dc |
998 | { |
999 | return (char*)s; |
1000 | } |
02128f11 |
1001 | s++; |
a687059c |
1002 | } |
bbce6d69 |
1003 | return Nullch; |
a687059c |
1004 | } |
463ee0b2 |
1005 | table = (unsigned char*)(SvPVX(littlestr) + littlelen + 1); |
62b28dd9 |
1006 | if (--littlelen >= bigend - big) |
1007 | return Nullch; |
1008 | s = big + littlelen; |
a687059c |
1009 | oldlittle = little = table - 2; |
bbce6d69 |
1010 | if (s < bigend) { |
1011 | top2: |
1012 | /*SUPPRESS 560*/ |
1013 | if (tmp = table[*s]) { |
62b28dd9 |
1014 | #ifdef POINTERRIGOR |
bbce6d69 |
1015 | if (bigend - s > tmp) { |
1016 | s += tmp; |
1017 | goto top2; |
1018 | } |
62b28dd9 |
1019 | #else |
bbce6d69 |
1020 | if ((s += tmp) < bigend) |
1021 | goto top2; |
62b28dd9 |
1022 | #endif |
bbce6d69 |
1023 | return Nullch; |
a687059c |
1024 | } |
bbce6d69 |
1025 | else { |
1026 | tmp = littlelen; /* less expensive than calling strncmp() */ |
1027 | olds = s; |
1028 | while (tmp--) { |
1029 | if (*--s == *--little) |
1030 | continue; |
c277df42 |
1031 | differ: |
bbce6d69 |
1032 | s = olds + 1; /* here we pay the price for failure */ |
1033 | little = oldlittle; |
1034 | if (s < bigend) /* fake up continue to outer loop */ |
62b28dd9 |
1035 | goto top2; |
62b28dd9 |
1036 | return Nullch; |
a687059c |
1037 | } |
c277df42 |
1038 | if (SvTAIL(littlestr) /* automatically multiline */ |
1039 | && olds + 1 != bigend |
1040 | && olds[1] != '\n') |
1041 | goto differ; |
bbce6d69 |
1042 | return (char *)s; |
378cc40b |
1043 | } |
1044 | } |
1045 | return Nullch; |
1046 | } |
1047 | |
c277df42 |
1048 | /* start_shift, end_shift are positive quantities which give offsets |
1049 | of ends of some substring of bigstr. |
1050 | If `last' we want the last occurence. |
1051 | old_posp is the way of communication between consequent calls if |
1052 | the next call needs to find the . |
1053 | The initial *old_posp should be -1. |
1054 | Note that we do not take into account SvTAIL, so it may give wrong |
1055 | positives if _ALL flag is set. |
1056 | */ |
1057 | |
378cc40b |
1058 | char * |
c277df42 |
1059 | screaminstr(SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last) |
378cc40b |
1060 | { |
a687059c |
1061 | register unsigned char *s, *x; |
1062 | register unsigned char *big; |
79072805 |
1063 | register I32 pos; |
1064 | register I32 previous; |
1065 | register I32 first; |
a687059c |
1066 | register unsigned char *little; |
c277df42 |
1067 | register I32 stop_pos; |
a687059c |
1068 | register unsigned char *littleend; |
c277df42 |
1069 | I32 found = 0; |
378cc40b |
1070 | |
c277df42 |
1071 | if (*old_posp == -1 |
1072 | ? (pos = screamfirst[BmRARE(littlestr)]) < 0 |
1073 | : (((pos = *old_posp), pos += screamnext[pos]) == 0)) |
378cc40b |
1074 | return Nullch; |
463ee0b2 |
1075 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 |
1076 | littleend = little + SvCUR(littlestr); |
378cc40b |
1077 | first = *little++; |
c277df42 |
1078 | /* The value of pos we can start at: */ |
79072805 |
1079 | previous = BmPREVIOUS(littlestr); |
463ee0b2 |
1080 | big = (unsigned char *)(SvPVX(bigstr)); |
c277df42 |
1081 | /* The value of pos we can stop at: */ |
1082 | stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous); |
1083 | if (previous + start_shift > stop_pos) return Nullch; |
1084 | while (pos < previous + start_shift) { |
378cc40b |
1085 | if (!(pos += screamnext[pos])) |
1086 | return Nullch; |
1087 | } |
de3bb511 |
1088 | #ifdef POINTERRIGOR |
bbce6d69 |
1089 | do { |
c277df42 |
1090 | if (pos >= stop_pos) return Nullch; |
bbce6d69 |
1091 | if (big[pos-previous] != first) |
1092 | continue; |
1093 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
bbce6d69 |
1094 | if (*s++ != *x++) { |
1095 | s--; |
1096 | break; |
de3bb511 |
1097 | } |
bbce6d69 |
1098 | } |
c277df42 |
1099 | if (s == littleend) { |
1100 | *old_posp = pos; |
1101 | if (!last) return (char *)(big+pos-previous); |
1102 | found = 1; |
1103 | } |
bbce6d69 |
1104 | } while ( pos += screamnext[pos] ); |
c277df42 |
1105 | return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch; |
de3bb511 |
1106 | #else /* !POINTERRIGOR */ |
1107 | big -= previous; |
bbce6d69 |
1108 | do { |
c277df42 |
1109 | if (pos >= stop_pos) return Nullch; |
bbce6d69 |
1110 | if (big[pos] != first) |
1111 | continue; |
1112 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
bbce6d69 |
1113 | if (*s++ != *x++) { |
1114 | s--; |
1115 | break; |
378cc40b |
1116 | } |
bbce6d69 |
1117 | } |
c277df42 |
1118 | if (s == littleend) { |
1119 | *old_posp = pos; |
1120 | if (!last) return (char *)(big+pos); |
1121 | found = 1; |
1122 | } |
bbce6d69 |
1123 | } while ( pos += screamnext[pos] ); |
c277df42 |
1124 | return (last && found) ? (char *)(big+(*old_posp)) : Nullch; |
de3bb511 |
1125 | #endif /* POINTERRIGOR */ |
8d063cd8 |
1126 | } |
1127 | |
79072805 |
1128 | I32 |
8ac85365 |
1129 | ibcmp(char *s1, char *s2, register I32 len) |
79072805 |
1130 | { |
bbce6d69 |
1131 | register U8 *a = (U8 *)s1; |
1132 | register U8 *b = (U8 *)s2; |
79072805 |
1133 | while (len--) { |
bbce6d69 |
1134 | if (*a != *b && *a != fold[*b]) |
1135 | return 1; |
1136 | a++,b++; |
1137 | } |
1138 | return 0; |
1139 | } |
1140 | |
1141 | I32 |
8ac85365 |
1142 | ibcmp_locale(char *s1, char *s2, register I32 len) |
bbce6d69 |
1143 | { |
1144 | register U8 *a = (U8 *)s1; |
1145 | register U8 *b = (U8 *)s2; |
1146 | while (len--) { |
1147 | if (*a != *b && *a != fold_locale[*b]) |
1148 | return 1; |
1149 | a++,b++; |
79072805 |
1150 | } |
1151 | return 0; |
1152 | } |
1153 | |
8d063cd8 |
1154 | /* copy a string to a safe spot */ |
1155 | |
1156 | char * |
8ac85365 |
1157 | savepv(char *sv) |
8d063cd8 |
1158 | { |
a687059c |
1159 | register char *newaddr; |
8d063cd8 |
1160 | |
79072805 |
1161 | New(902,newaddr,strlen(sv)+1,char); |
1162 | (void)strcpy(newaddr,sv); |
8d063cd8 |
1163 | return newaddr; |
1164 | } |
1165 | |
a687059c |
1166 | /* same thing but with a known length */ |
1167 | |
1168 | char * |
8ac85365 |
1169 | savepvn(char *sv, register I32 len) |
a687059c |
1170 | { |
1171 | register char *newaddr; |
1172 | |
1173 | New(903,newaddr,len+1,char); |
79072805 |
1174 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c |
1175 | newaddr[len] = '\0'; /* is now */ |
1176 | return newaddr; |
1177 | } |
1178 | |
fc36a67e |
1179 | /* the SV for form() and mess() is not kept in an arena */ |
1180 | |
76e3520e |
1181 | STATIC SV * |
8ac85365 |
1182 | mess_alloc(void) |
fc36a67e |
1183 | { |
1184 | SV *sv; |
1185 | XPVMG *any; |
1186 | |
1187 | /* Create as PVMG now, to avoid any upgrading later */ |
1188 | New(905, sv, 1, SV); |
1189 | Newz(905, any, 1, XPVMG); |
1190 | SvFLAGS(sv) = SVt_PVMG; |
1191 | SvANY(sv) = (void*)any; |
1192 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ |
1193 | return sv; |
1194 | } |
1195 | |
8990e307 |
1196 | char * |
46fc3d4c |
1197 | form(const char* pat, ...) |
8990e307 |
1198 | { |
46fc3d4c |
1199 | va_list args; |
46fc3d4c |
1200 | va_start(args, pat); |
fc36a67e |
1201 | if (!mess_sv) |
1202 | mess_sv = mess_alloc(); |
1203 | sv_vsetpvfn(mess_sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c |
1204 | va_end(args); |
fc36a67e |
1205 | return SvPVX(mess_sv); |
46fc3d4c |
1206 | } |
a687059c |
1207 | |
46fc3d4c |
1208 | char * |
8ac85365 |
1209 | mess(const char *pat, va_list *args) |
46fc3d4c |
1210 | { |
1211 | SV *sv; |
1212 | static char dgd[] = " during global destruction.\n"; |
1213 | |
46fc3d4c |
1214 | if (!mess_sv) |
fc36a67e |
1215 | mess_sv = mess_alloc(); |
46fc3d4c |
1216 | sv = mess_sv; |
fc36a67e |
1217 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c |
1218 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
e858de61 |
1219 | dTHR; |
2304df62 |
1220 | if (dirty) |
46fc3d4c |
1221 | sv_catpv(sv, dgd); |
2304df62 |
1222 | else { |
46fc3d4c |
1223 | if (curcop->cop_line) |
fc36a67e |
1224 | sv_catpvf(sv, " at %_ line %ld", |
46fc3d4c |
1225 | GvSV(curcop->cop_filegv), (long)curcop->cop_line); |
c07a80fd |
1226 | if (GvIO(last_in_gv) && IoLINES(GvIOp(last_in_gv))) { |
1227 | bool line_mode = (RsSIMPLE(rs) && |
1228 | SvLEN(rs) == 1 && *SvPVX(rs) == '\n'); |
46fc3d4c |
1229 | sv_catpvf(sv, ", <%s> %s %ld", |
1230 | last_in_gv == argvgv ? "" : GvNAME(last_in_gv), |
1231 | line_mode ? "line" : "chunk", |
1232 | (long)IoLINES(GvIOp(last_in_gv))); |
2304df62 |
1233 | } |
46fc3d4c |
1234 | sv_catpv(sv, ".\n"); |
a687059c |
1235 | } |
a687059c |
1236 | } |
46fc3d4c |
1237 | return SvPVX(sv); |
a687059c |
1238 | } |
1239 | |
36477c24 |
1240 | OP * |
71be2cbc |
1241 | die(const char* pat, ...) |
36477c24 |
1242 | { |
5dc0d613 |
1243 | dTHR; |
36477c24 |
1244 | va_list args; |
1245 | char *message; |
36477c24 |
1246 | int was_in_eval = in_eval; |
1247 | HV *stash; |
1248 | GV *gv; |
1249 | CV *cv; |
1250 | |
57d3b86d |
1251 | #ifdef USE_THREADS |
199100c8 |
1252 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1253 | "%p: die: curstack = %p, mainstack = %p\n", |
1254 | thr, curstack, mainstack)); |
57d3b86d |
1255 | #endif /* USE_THREADS */ |
36477c24 |
1256 | |
36477c24 |
1257 | va_start(args, pat); |
4e6ea2c3 |
1258 | message = pat ? mess(pat, &args) : Nullch; |
36477c24 |
1259 | va_end(args); |
1260 | |
57d3b86d |
1261 | #ifdef USE_THREADS |
199100c8 |
1262 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
1263 | "%p: die: message = %s\ndiehook = %p\n", |
1264 | thr, message, diehook)); |
57d3b86d |
1265 | #endif /* USE_THREADS */ |
1738f5c4 |
1266 | if (diehook) { |
1267 | /* sv_2cv might call croak() */ |
1268 | SV *olddiehook = diehook; |
1269 | ENTER; |
1270 | SAVESPTR(diehook); |
1271 | diehook = Nullsv; |
1272 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1273 | LEAVE; |
1274 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
1275 | dSP; |
774d564b |
1276 | SV *msg; |
1277 | |
1278 | ENTER; |
4e6ea2c3 |
1279 | if(message) { |
1280 | msg = newSVpv(message, 0); |
1281 | SvREADONLY_on(msg); |
1282 | SAVEFREESV(msg); |
1283 | } |
1284 | else { |
1285 | msg = ERRSV; |
1286 | } |
1738f5c4 |
1287 | |
8931a351 |
1288 | PUSHSTACK(SI_DIEHOOK); |
924508f0 |
1289 | PUSHMARK(SP); |
1738f5c4 |
1290 | XPUSHs(msg); |
1291 | PUTBACK; |
1292 | perl_call_sv((SV*)cv, G_DISCARD); |
8931a351 |
1293 | POPSTACK(); |
774d564b |
1294 | LEAVE; |
1738f5c4 |
1295 | } |
36477c24 |
1296 | } |
1297 | |
1298 | restartop = die_where(message); |
57d3b86d |
1299 | #ifdef USE_THREADS |
d9f997d7 |
1300 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
7c06b590 |
1301 | "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n", |
1302 | thr, restartop, was_in_eval, top_env)); |
57d3b86d |
1303 | #endif /* USE_THREADS */ |
7c06b590 |
1304 | if ((!restartop && was_in_eval) || top_env->je_prev) |
54310121 |
1305 | JMPENV_JUMP(3); |
36477c24 |
1306 | return restartop; |
1307 | } |
1308 | |
79072805 |
1309 | void |
71be2cbc |
1310 | croak(const char* pat, ...) |
a687059c |
1311 | { |
11343788 |
1312 | dTHR; |
a687059c |
1313 | va_list args; |
de3bb511 |
1314 | char *message; |
748a9306 |
1315 | HV *stash; |
1316 | GV *gv; |
1317 | CV *cv; |
a687059c |
1318 | |
8990e307 |
1319 | va_start(args, pat); |
2304df62 |
1320 | message = mess(pat, &args); |
a687059c |
1321 | va_end(args); |
11343788 |
1322 | #ifdef USE_THREADS |
d9f997d7 |
1323 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
11343788 |
1324 | #endif /* USE_THREADS */ |
20cec16a |
1325 | if (diehook) { |
1738f5c4 |
1326 | /* sv_2cv might call croak() */ |
20cec16a |
1327 | SV *olddiehook = diehook; |
1738f5c4 |
1328 | ENTER; |
1329 | SAVESPTR(diehook); |
1330 | diehook = Nullsv; |
20cec16a |
1331 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 |
1332 | LEAVE; |
1333 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1334 | dSP; |
774d564b |
1335 | SV *msg; |
1336 | |
1337 | ENTER; |
1338 | msg = newSVpv(message, 0); |
1339 | SvREADONLY_on(msg); |
1340 | SAVEFREESV(msg); |
20cec16a |
1341 | |
8931a351 |
1342 | PUSHSTACK(SI_DIEHOOK); |
924508f0 |
1343 | PUSHMARK(SP); |
1738f5c4 |
1344 | XPUSHs(msg); |
20cec16a |
1345 | PUTBACK; |
1346 | perl_call_sv((SV*)cv, G_DISCARD); |
8931a351 |
1347 | POPSTACK(); |
774d564b |
1348 | LEAVE; |
20cec16a |
1349 | } |
748a9306 |
1350 | } |
a0d0e21e |
1351 | if (in_eval) { |
1352 | restartop = die_where(message); |
54310121 |
1353 | JMPENV_JUMP(3); |
a0d0e21e |
1354 | } |
760ac839 |
1355 | PerlIO_puts(PerlIO_stderr(),message); |
1356 | (void)PerlIO_flush(PerlIO_stderr()); |
f86702cc |
1357 | my_failure_exit(); |
a687059c |
1358 | } |
1359 | |
8990e307 |
1360 | void |
71be2cbc |
1361 | warn(const char* pat,...) |
a687059c |
1362 | { |
1363 | va_list args; |
de3bb511 |
1364 | char *message; |
748a9306 |
1365 | HV *stash; |
1366 | GV *gv; |
1367 | CV *cv; |
a687059c |
1368 | |
8990e307 |
1369 | va_start(args, pat); |
2304df62 |
1370 | message = mess(pat, &args); |
a687059c |
1371 | va_end(args); |
1372 | |
20cec16a |
1373 | if (warnhook) { |
1738f5c4 |
1374 | /* sv_2cv might call warn() */ |
11343788 |
1375 | dTHR; |
20cec16a |
1376 | SV *oldwarnhook = warnhook; |
1738f5c4 |
1377 | ENTER; |
1378 | SAVESPTR(warnhook); |
1379 | warnhook = Nullsv; |
20cec16a |
1380 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 |
1381 | LEAVE; |
1382 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1383 | dSP; |
774d564b |
1384 | SV *msg; |
1385 | |
1386 | ENTER; |
1387 | msg = newSVpv(message, 0); |
1388 | SvREADONLY_on(msg); |
1389 | SAVEFREESV(msg); |
1390 | |
8931a351 |
1391 | PUSHSTACK(SI_WARNHOOK); |
924508f0 |
1392 | PUSHMARK(SP); |
774d564b |
1393 | XPUSHs(msg); |
20cec16a |
1394 | PUTBACK; |
1395 | perl_call_sv((SV*)cv, G_DISCARD); |
8931a351 |
1396 | POPSTACK(); |
774d564b |
1397 | LEAVE; |
20cec16a |
1398 | return; |
1399 | } |
748a9306 |
1400 | } |
20cec16a |
1401 | PerlIO_puts(PerlIO_stderr(),message); |
a687059c |
1402 | #ifdef LEAKTEST |
8c52afec |
1403 | DEBUG_L(*message == '!' |
1404 | ? (xstat(message[1]=='!' |
1405 | ? (message[2]=='!' ? 2 : 1) |
1406 | : 0) |
1407 | , 0) |
1408 | : 0); |
a687059c |
1409 | #endif |
20cec16a |
1410 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c |
1411 | } |
8d063cd8 |
1412 | |
a0d0e21e |
1413 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
3e3baf6d |
1414 | #ifndef WIN32 |
8d063cd8 |
1415 | void |
8ac85365 |
1416 | my_setenv(char *nam, char *val) |
8d063cd8 |
1417 | { |
79072805 |
1418 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 |
1419 | |
fe14fcc3 |
1420 | if (environ == origenviron) { /* need we copy environment? */ |
79072805 |
1421 | I32 j; |
1422 | I32 max; |
fe14fcc3 |
1423 | char **tmpenv; |
1424 | |
de3bb511 |
1425 | /*SUPPRESS 530*/ |
fe14fcc3 |
1426 | for (max = i; environ[max]; max++) ; |
1427 | New(901,tmpenv, max+2, char*); |
1428 | for (j=0; j<max; j++) /* copy environment */ |
a0d0e21e |
1429 | tmpenv[j] = savepv(environ[j]); |
fe14fcc3 |
1430 | tmpenv[max] = Nullch; |
1431 | environ = tmpenv; /* tell exec where it is now */ |
1432 | } |
a687059c |
1433 | if (!val) { |
e5ebf479 |
1434 | Safefree(environ[i]); |
a687059c |
1435 | while (environ[i]) { |
1436 | environ[i] = environ[i+1]; |
1437 | i++; |
1438 | } |
1439 | return; |
1440 | } |
8d063cd8 |
1441 | if (!environ[i]) { /* does not exist yet */ |
fe14fcc3 |
1442 | Renew(environ, i+2, char*); /* just expand it a bit */ |
8d063cd8 |
1443 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1444 | } |
fe14fcc3 |
1445 | else |
1446 | Safefree(environ[i]); |
a687059c |
1447 | New(904, environ[i], strlen(nam) + strlen(val) + 2, char); |
62b28dd9 |
1448 | #ifndef MSDOS |
a687059c |
1449 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 |
1450 | #else |
1451 | /* MS-DOS requires environment variable names to be in uppercase */ |
fe14fcc3 |
1452 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1453 | * some utilities and applications may break because they only look |
1454 | * for upper case strings. (Fixed strupr() bug here.)] |
1455 | */ |
1456 | strcpy(environ[i],nam); strupr(environ[i]); |
62b28dd9 |
1457 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1458 | #endif /* MSDOS */ |
8d063cd8 |
1459 | } |
1460 | |
3e3baf6d |
1461 | #else /* if WIN32 */ |
68dc0745 |
1462 | |
1463 | void |
4e35701f |
1464 | my_setenv(char *nam,char *val) |
68dc0745 |
1465 | { |
3e3baf6d |
1466 | |
1467 | #ifdef USE_WIN32_RTL_ENV |
1468 | |
68dc0745 |
1469 | register char *envstr; |
1470 | STRLEN namlen = strlen(nam); |
3e3baf6d |
1471 | STRLEN vallen; |
1472 | char *oldstr = environ[setenv_getix(nam)]; |
1473 | |
1474 | /* putenv() has totally broken semantics in both the Borland |
1475 | * and Microsoft CRTLs. They either store the passed pointer in |
1476 | * the environment without making a copy, or make a copy and don't |
1477 | * free it. And on top of that, they dont free() old entries that |
1478 | * are being replaced/deleted. This means the caller must |
1479 | * free any old entries somehow, or we end up with a memory |
1480 | * leak every time my_setenv() is called. One might think |
1481 | * one could directly manipulate environ[], like the UNIX code |
1482 | * above, but direct changes to environ are not allowed when |
1483 | * calling putenv(), since the RTLs maintain an internal |
1484 | * *copy* of environ[]. Bad, bad, *bad* stink. |
1485 | * GSAR 97-06-07 |
1486 | */ |
68dc0745 |
1487 | |
3e3baf6d |
1488 | if (!val) { |
1489 | if (!oldstr) |
1490 | return; |
1491 | val = ""; |
1492 | vallen = 0; |
1493 | } |
1494 | else |
1495 | vallen = strlen(val); |
fc36a67e |
1496 | New(904, envstr, namlen + vallen + 3, char); |
68dc0745 |
1497 | (void)sprintf(envstr,"%s=%s",nam,val); |
76e3520e |
1498 | (void)PerlEnv_putenv(envstr); |
3e3baf6d |
1499 | if (oldstr) |
1500 | Safefree(oldstr); |
1501 | #ifdef _MSC_VER |
1502 | Safefree(envstr); /* MSVCRT leaks without this */ |
1503 | #endif |
1504 | |
1505 | #else /* !USE_WIN32_RTL_ENV */ |
1506 | |
1507 | /* The sane way to deal with the environment. |
1508 | * Has these advantages over putenv() & co.: |
1509 | * * enables us to store a truly empty value in the |
1510 | * environment (like in UNIX). |
1511 | * * we don't have to deal with RTL globals, bugs and leaks. |
1512 | * * Much faster. |
1513 | * Why you may want to enable USE_WIN32_RTL_ENV: |
1514 | * * environ[] and RTL functions will not reflect changes, |
1515 | * which might be an issue if extensions want to access |
1516 | * the env. via RTL. This cuts both ways, since RTL will |
1517 | * not see changes made by extensions that call the Win32 |
1518 | * functions directly, either. |
1519 | * GSAR 97-06-07 |
1520 | */ |
1521 | SetEnvironmentVariable(nam,val); |
1522 | |
1523 | #endif |
1524 | } |
1525 | |
1526 | #endif /* WIN32 */ |
1527 | |
1528 | I32 |
8ac85365 |
1529 | setenv_getix(char *nam) |
3e3baf6d |
1530 | { |
1531 | register I32 i, len = strlen(nam); |
1532 | |
1533 | for (i = 0; environ[i]; i++) { |
1534 | if ( |
1535 | #ifdef WIN32 |
1536 | strnicmp(environ[i],nam,len) == 0 |
1537 | #else |
1538 | strnEQ(environ[i],nam,len) |
1539 | #endif |
1540 | && environ[i][len] == '=') |
1541 | break; /* strnEQ must come first to avoid */ |
1542 | } /* potential SEGV's */ |
1543 | return i; |
68dc0745 |
1544 | } |
1545 | |
a0d0e21e |
1546 | #endif /* !VMS */ |
378cc40b |
1547 | |
16d20bd9 |
1548 | #ifdef UNLINK_ALL_VERSIONS |
79072805 |
1549 | I32 |
378cc40b |
1550 | unlnk(f) /* unlink all versions of a file */ |
1551 | char *f; |
1552 | { |
79072805 |
1553 | I32 i; |
378cc40b |
1554 | |
6ad3d225 |
1555 | for (i = 0; PerlLIO_unlink(f) >= 0; i++) ; |
378cc40b |
1556 | return i ? 0 : -1; |
1557 | } |
1558 | #endif |
1559 | |
85e6fe83 |
1560 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b |
1561 | char * |
4e35701f |
1562 | my_bcopy(register char *from,register char *to,register I32 len) |
378cc40b |
1563 | { |
1564 | char *retval = to; |
1565 | |
7c0587c8 |
1566 | if (from - to >= 0) { |
1567 | while (len--) |
1568 | *to++ = *from++; |
1569 | } |
1570 | else { |
1571 | to += len; |
1572 | from += len; |
1573 | while (len--) |
faf8582f |
1574 | *(--to) = *(--from); |
7c0587c8 |
1575 | } |
378cc40b |
1576 | return retval; |
1577 | } |
ffed7fef |
1578 | #endif |
378cc40b |
1579 | |
fc36a67e |
1580 | #ifndef HAS_MEMSET |
1581 | void * |
1582 | my_memset(loc,ch,len) |
1583 | register char *loc; |
1584 | register I32 ch; |
1585 | register I32 len; |
1586 | { |
1587 | char *retval = loc; |
1588 | |
1589 | while (len--) |
1590 | *loc++ = ch; |
1591 | return retval; |
1592 | } |
1593 | #endif |
1594 | |
7c0587c8 |
1595 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b |
1596 | char * |
7c0587c8 |
1597 | my_bzero(loc,len) |
378cc40b |
1598 | register char *loc; |
79072805 |
1599 | register I32 len; |
378cc40b |
1600 | { |
1601 | char *retval = loc; |
1602 | |
1603 | while (len--) |
1604 | *loc++ = 0; |
1605 | return retval; |
1606 | } |
1607 | #endif |
7c0587c8 |
1608 | |
36477c24 |
1609 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 |
1610 | I32 |
7c0587c8 |
1611 | my_memcmp(s1,s2,len) |
36477c24 |
1612 | char *s1; |
1613 | char *s2; |
79072805 |
1614 | register I32 len; |
7c0587c8 |
1615 | { |
36477c24 |
1616 | register U8 *a = (U8 *)s1; |
1617 | register U8 *b = (U8 *)s2; |
79072805 |
1618 | register I32 tmp; |
7c0587c8 |
1619 | |
1620 | while (len--) { |
36477c24 |
1621 | if (tmp = *a++ - *b++) |
7c0587c8 |
1622 | return tmp; |
1623 | } |
1624 | return 0; |
1625 | } |
36477c24 |
1626 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c |
1627 | |
fe14fcc3 |
1628 | #ifndef HAS_VPRINTF |
a687059c |
1629 | |
85e6fe83 |
1630 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1631 | char * |
1632 | #else |
1633 | int |
1634 | #endif |
1635 | vsprintf(dest, pat, args) |
71be2cbc |
1636 | char *dest; |
1637 | const char *pat; |
1638 | char *args; |
a687059c |
1639 | { |
1640 | FILE fakebuf; |
1641 | |
1642 | fakebuf._ptr = dest; |
1643 | fakebuf._cnt = 32767; |
35c8bce7 |
1644 | #ifndef _IOSTRG |
1645 | #define _IOSTRG 0 |
1646 | #endif |
a687059c |
1647 | fakebuf._flag = _IOWRT|_IOSTRG; |
1648 | _doprnt(pat, args, &fakebuf); /* what a kludge */ |
1649 | (void)putc('\0', &fakebuf); |
85e6fe83 |
1650 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1651 | return(dest); |
1652 | #else |
1653 | return 0; /* perl doesn't use return value */ |
1654 | #endif |
1655 | } |
1656 | |
fe14fcc3 |
1657 | #endif /* HAS_VPRINTF */ |
a687059c |
1658 | |
1659 | #ifdef MYSWAP |
ffed7fef |
1660 | #if BYTEORDER != 0x4321 |
a687059c |
1661 | short |
748a9306 |
1662 | my_swap(short s) |
a687059c |
1663 | { |
1664 | #if (BYTEORDER & 1) == 0 |
1665 | short result; |
1666 | |
1667 | result = ((s & 255) << 8) + ((s >> 8) & 255); |
1668 | return result; |
1669 | #else |
1670 | return s; |
1671 | #endif |
1672 | } |
1673 | |
1674 | long |
748a9306 |
1675 | my_htonl(long l) |
a687059c |
1676 | { |
1677 | union { |
1678 | long result; |
ffed7fef |
1679 | char c[sizeof(long)]; |
a687059c |
1680 | } u; |
1681 | |
ffed7fef |
1682 | #if BYTEORDER == 0x1234 |
a687059c |
1683 | u.c[0] = (l >> 24) & 255; |
1684 | u.c[1] = (l >> 16) & 255; |
1685 | u.c[2] = (l >> 8) & 255; |
1686 | u.c[3] = l & 255; |
1687 | return u.result; |
1688 | #else |
ffed7fef |
1689 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1690 | croak("Unknown BYTEORDER\n"); |
a687059c |
1691 | #else |
79072805 |
1692 | register I32 o; |
1693 | register I32 s; |
a687059c |
1694 | |
ffed7fef |
1695 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1696 | u.c[o & 0xf] = (l >> s) & 255; |
a687059c |
1697 | } |
1698 | return u.result; |
1699 | #endif |
1700 | #endif |
1701 | } |
1702 | |
1703 | long |
748a9306 |
1704 | my_ntohl(long l) |
a687059c |
1705 | { |
1706 | union { |
1707 | long l; |
ffed7fef |
1708 | char c[sizeof(long)]; |
a687059c |
1709 | } u; |
1710 | |
ffed7fef |
1711 | #if BYTEORDER == 0x1234 |
a687059c |
1712 | u.c[0] = (l >> 24) & 255; |
1713 | u.c[1] = (l >> 16) & 255; |
1714 | u.c[2] = (l >> 8) & 255; |
1715 | u.c[3] = l & 255; |
1716 | return u.l; |
1717 | #else |
ffed7fef |
1718 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
463ee0b2 |
1719 | croak("Unknown BYTEORDER\n"); |
a687059c |
1720 | #else |
79072805 |
1721 | register I32 o; |
1722 | register I32 s; |
a687059c |
1723 | |
1724 | u.l = l; |
1725 | l = 0; |
ffed7fef |
1726 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
1727 | l |= (u.c[o & 0xf] & 255) << s; |
a687059c |
1728 | } |
1729 | return l; |
1730 | #endif |
1731 | #endif |
1732 | } |
1733 | |
ffed7fef |
1734 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 |
1735 | #endif /* MYSWAP */ |
1736 | |
1737 | /* |
1738 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. |
1739 | * If these functions are defined, |
1740 | * the BYTEORDER is neither 0x1234 nor 0x4321. |
1741 | * However, this is not assumed. |
1742 | * -DWS |
1743 | */ |
1744 | |
1745 | #define HTOV(name,type) \ |
1746 | type \ |
1747 | name (n) \ |
1748 | register type n; \ |
1749 | { \ |
1750 | union { \ |
1751 | type value; \ |
1752 | char c[sizeof(type)]; \ |
1753 | } u; \ |
79072805 |
1754 | register I32 i; \ |
1755 | register I32 s; \ |
988174c1 |
1756 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1757 | u.c[i] = (n >> s) & 0xFF; \ |
1758 | } \ |
1759 | return u.value; \ |
1760 | } |
1761 | |
1762 | #define VTOH(name,type) \ |
1763 | type \ |
1764 | name (n) \ |
1765 | register type n; \ |
1766 | { \ |
1767 | union { \ |
1768 | type value; \ |
1769 | char c[sizeof(type)]; \ |
1770 | } u; \ |
79072805 |
1771 | register I32 i; \ |
1772 | register I32 s; \ |
988174c1 |
1773 | u.value = n; \ |
1774 | n = 0; \ |
1775 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
1776 | n += (u.c[i] & 0xFF) << s; \ |
1777 | } \ |
1778 | return n; \ |
1779 | } |
1780 | |
1781 | #if defined(HAS_HTOVS) && !defined(htovs) |
1782 | HTOV(htovs,short) |
1783 | #endif |
1784 | #if defined(HAS_HTOVL) && !defined(htovl) |
1785 | HTOV(htovl,long) |
1786 | #endif |
1787 | #if defined(HAS_VTOHS) && !defined(vtohs) |
1788 | VTOH(vtohs,short) |
1789 | #endif |
1790 | #if defined(HAS_VTOHL) && !defined(vtohl) |
1791 | VTOH(vtohl,long) |
1792 | #endif |
a687059c |
1793 | |
5f05dabc |
1794 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
1795 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) |
760ac839 |
1796 | PerlIO * |
8ac85365 |
1797 | my_popen(char *cmd, char *mode) |
a687059c |
1798 | { |
1799 | int p[2]; |
8ac85365 |
1800 | register I32 This, that; |
79072805 |
1801 | register I32 pid; |
1802 | SV *sv; |
1738f5c4 |
1803 | I32 doexec = strNE(cmd,"-"); |
a687059c |
1804 | |
ddcf38b7 |
1805 | #ifdef OS2 |
1806 | if (doexec) { |
1807 | return my_syspopen(cmd,mode); |
1808 | } |
1809 | #endif |
8ac85365 |
1810 | This = (*mode == 'w'); |
1811 | that = !This; |
bbce6d69 |
1812 | if (doexec && tainting) { |
1813 | taint_env(); |
1814 | taint_proper("Insecure %s%s", "EXEC"); |
d48672a2 |
1815 | } |
c2267164 |
1816 | if (PerlProc_pipe(p) < 0) |
1817 | return Nullfp; |
a687059c |
1818 | while ((pid = (doexec?vfork():fork())) < 0) { |
1819 | if (errno != EAGAIN) { |
6ad3d225 |
1820 | PerlLIO_close(p[This]); |
a687059c |
1821 | if (!doexec) |
463ee0b2 |
1822 | croak("Can't fork"); |
a687059c |
1823 | return Nullfp; |
1824 | } |
1825 | sleep(5); |
1826 | } |
1827 | if (pid == 0) { |
79072805 |
1828 | GV* tmpgv; |
1829 | |
30ac6d9b |
1830 | #undef THIS |
1831 | #undef THAT |
a687059c |
1832 | #define THIS that |
8ac85365 |
1833 | #define THAT This |
6ad3d225 |
1834 | PerlLIO_close(p[THAT]); |
a687059c |
1835 | if (p[THIS] != (*mode == 'r')) { |
6ad3d225 |
1836 | PerlLIO_dup2(p[THIS], *mode == 'r'); |
1837 | PerlLIO_close(p[THIS]); |
a687059c |
1838 | } |
1839 | if (doexec) { |
a0d0e21e |
1840 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 |
1841 | int fd; |
1842 | |
1843 | #ifndef NOFILE |
1844 | #define NOFILE 20 |
1845 | #endif |
d48672a2 |
1846 | for (fd = maxsysfd + 1; fd < NOFILE; fd++) |
6ad3d225 |
1847 | PerlLIO_close(fd); |
ae986130 |
1848 | #endif |
a687059c |
1849 | do_exec(cmd); /* may or may not use the shell */ |
6ad3d225 |
1850 | PerlProc__exit(1); |
a687059c |
1851 | } |
de3bb511 |
1852 | /*SUPPRESS 560*/ |
85e6fe83 |
1853 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 |
1854 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
9f68db38 |
1855 | forkprocess = 0; |
463ee0b2 |
1856 | hv_clear(pidstatus); /* we have no children */ |
a687059c |
1857 | return Nullfp; |
1858 | #undef THIS |
1859 | #undef THAT |
1860 | } |
62b28dd9 |
1861 | do_execfree(); /* free any memory malloced by child on vfork */ |
6ad3d225 |
1862 | PerlLIO_close(p[that]); |
8ac85365 |
1863 | if (p[that] < p[This]) { |
6ad3d225 |
1864 | PerlLIO_dup2(p[This], p[that]); |
1865 | PerlLIO_close(p[This]); |
8ac85365 |
1866 | p[This] = p[that]; |
62b28dd9 |
1867 | } |
8ac85365 |
1868 | sv = *av_fetch(fdpid,p[This],TRUE); |
a0d0e21e |
1869 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
1870 | SvIVX(sv) = pid; |
a687059c |
1871 | forkprocess = pid; |
8ac85365 |
1872 | return PerlIO_fdopen(p[This], mode); |
a687059c |
1873 | } |
7c0587c8 |
1874 | #else |
55497cff |
1875 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 |
1876 | FILE *popen(); |
760ac839 |
1877 | PerlIO * |
79072805 |
1878 | my_popen(cmd,mode) |
7c0587c8 |
1879 | char *cmd; |
1880 | char *mode; |
1881 | { |
760ac839 |
1882 | /* Needs work for PerlIO ! */ |
55497cff |
1883 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
1884 | return popen(PerlIO_exportFILE(cmd, 0), mode); |
7c0587c8 |
1885 | } |
1886 | #endif |
1887 | |
1888 | #endif /* !DOSISH */ |
a687059c |
1889 | |
748a9306 |
1890 | #ifdef DUMP_FDS |
35ff7856 |
1891 | void |
1892 | dump_fds(char *s) |
ae986130 |
1893 | { |
1894 | int fd; |
1895 | struct stat tmpstatbuf; |
1896 | |
760ac839 |
1897 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 |
1898 | for (fd = 0; fd < 32; fd++) { |
6ad3d225 |
1899 | if (PerlLIO_fstat(fd,&tmpstatbuf) >= 0) |
760ac839 |
1900 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 |
1901 | } |
760ac839 |
1902 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 |
1903 | } |
35ff7856 |
1904 | #endif /* DUMP_FDS */ |
ae986130 |
1905 | |
fe14fcc3 |
1906 | #ifndef HAS_DUP2 |
fec02dd3 |
1907 | int |
a687059c |
1908 | dup2(oldfd,newfd) |
1909 | int oldfd; |
1910 | int newfd; |
1911 | { |
a0d0e21e |
1912 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 |
1913 | if (oldfd == newfd) |
1914 | return oldfd; |
6ad3d225 |
1915 | PerlLIO_close(newfd); |
fec02dd3 |
1916 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 |
1917 | #else |
fc36a67e |
1918 | #define DUP2_MAX_FDS 256 |
1919 | int fdtmp[DUP2_MAX_FDS]; |
79072805 |
1920 | I32 fdx = 0; |
ae986130 |
1921 | int fd; |
1922 | |
fe14fcc3 |
1923 | if (oldfd == newfd) |
fec02dd3 |
1924 | return oldfd; |
6ad3d225 |
1925 | PerlLIO_close(newfd); |
fc36a67e |
1926 | /* good enough for low fd's... */ |
6ad3d225 |
1927 | while ((fd = PerlLIO_dup(oldfd)) != newfd && fd >= 0) { |
fc36a67e |
1928 | if (fdx >= DUP2_MAX_FDS) { |
6ad3d225 |
1929 | PerlLIO_close(fd); |
fc36a67e |
1930 | fd = -1; |
1931 | break; |
1932 | } |
ae986130 |
1933 | fdtmp[fdx++] = fd; |
fc36a67e |
1934 | } |
ae986130 |
1935 | while (fdx > 0) |
6ad3d225 |
1936 | PerlLIO_close(fdtmp[--fdx]); |
fec02dd3 |
1937 | return fd; |
62b28dd9 |
1938 | #endif |
a687059c |
1939 | } |
1940 | #endif |
1941 | |
ff68c719 |
1942 | |
1943 | #ifdef HAS_SIGACTION |
1944 | |
1945 | Sighandler_t |
8ac85365 |
1946 | rsignal(int signo, Sighandler_t handler) |
ff68c719 |
1947 | { |
1948 | struct sigaction act, oact; |
1949 | |
1950 | act.sa_handler = handler; |
1951 | sigemptyset(&act.sa_mask); |
1952 | act.sa_flags = 0; |
1953 | #ifdef SA_RESTART |
1954 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
1955 | #endif |
1956 | if (sigaction(signo, &act, &oact) == -1) |
36477c24 |
1957 | return SIG_ERR; |
ff68c719 |
1958 | else |
36477c24 |
1959 | return oact.sa_handler; |
ff68c719 |
1960 | } |
1961 | |
1962 | Sighandler_t |
8ac85365 |
1963 | rsignal_state(int signo) |
ff68c719 |
1964 | { |
1965 | struct sigaction oact; |
1966 | |
1967 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) |
1968 | return SIG_ERR; |
1969 | else |
1970 | return oact.sa_handler; |
1971 | } |
1972 | |
1973 | int |
8ac85365 |
1974 | rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 |
1975 | { |
1976 | struct sigaction act; |
1977 | |
1978 | act.sa_handler = handler; |
1979 | sigemptyset(&act.sa_mask); |
1980 | act.sa_flags = 0; |
1981 | #ifdef SA_RESTART |
1982 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
1983 | #endif |
1984 | return sigaction(signo, &act, save); |
1985 | } |
1986 | |
1987 | int |
8ac85365 |
1988 | rsignal_restore(int signo, Sigsave_t *save) |
ff68c719 |
1989 | { |
1990 | return sigaction(signo, save, (struct sigaction *)NULL); |
1991 | } |
1992 | |
1993 | #else /* !HAS_SIGACTION */ |
1994 | |
1995 | Sighandler_t |
4e35701f |
1996 | rsignal(int signo, Sighandler_t handler) |
ff68c719 |
1997 | { |
6ad3d225 |
1998 | return PerlProc_signal(signo, handler); |
ff68c719 |
1999 | } |
2000 | |
2001 | static int sig_trapped; |
2002 | |
2003 | static |
2004 | Signal_t |
4e35701f |
2005 | sig_trap(int signo) |
ff68c719 |
2006 | { |
2007 | sig_trapped++; |
2008 | } |
2009 | |
2010 | Sighandler_t |
4e35701f |
2011 | rsignal_state(int signo) |
ff68c719 |
2012 | { |
2013 | Sighandler_t oldsig; |
2014 | |
2015 | sig_trapped = 0; |
6ad3d225 |
2016 | oldsig = PerlProc_signal(signo, sig_trap); |
2017 | PerlProc_signal(signo, oldsig); |
ff68c719 |
2018 | if (sig_trapped) |
6ad3d225 |
2019 | PerlProc_kill(getpid(), signo); |
ff68c719 |
2020 | return oldsig; |
2021 | } |
2022 | |
2023 | int |
4e35701f |
2024 | rsignal_save(int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 |
2025 | { |
6ad3d225 |
2026 | *save = PerlProc_signal(signo, handler); |
ff68c719 |
2027 | return (*save == SIG_ERR) ? -1 : 0; |
2028 | } |
2029 | |
2030 | int |
4e35701f |
2031 | rsignal_restore(int signo, Sigsave_t *save) |
ff68c719 |
2032 | { |
6ad3d225 |
2033 | return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0; |
ff68c719 |
2034 | } |
2035 | |
2036 | #endif /* !HAS_SIGACTION */ |
2037 | |
5f05dabc |
2038 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
2039 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) |
79072805 |
2040 | I32 |
6acef3b7 |
2041 | my_pclose(PerlIO *ptr) |
a687059c |
2042 | { |
ff68c719 |
2043 | Sigsave_t hstat, istat, qstat; |
a687059c |
2044 | int status; |
a0d0e21e |
2045 | SV **svp; |
20188a90 |
2046 | int pid; |
1d3434b8 |
2047 | int pid2; |
03136e13 |
2048 | bool close_failed; |
2049 | int saved_errno; |
2050 | #ifdef VMS |
2051 | int saved_vaxc_errno; |
2052 | #endif |
22fae026 |
2053 | #ifdef WIN32 |
2054 | int saved_win32_errno; |
2055 | #endif |
a687059c |
2056 | |
760ac839 |
2057 | svp = av_fetch(fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 |
2058 | pid = (int)SvIVX(*svp); |
a0d0e21e |
2059 | SvREFCNT_dec(*svp); |
2060 | *svp = &sv_undef; |
ddcf38b7 |
2061 | #ifdef OS2 |
2062 | if (pid == -1) { /* Opened by popen. */ |
2063 | return my_syspclose(ptr); |
2064 | } |
2065 | #endif |
03136e13 |
2066 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
2067 | saved_errno = errno; |
2068 | #ifdef VMS |
2069 | saved_vaxc_errno = vaxc$errno; |
2070 | #endif |
22fae026 |
2071 | #ifdef WIN32 |
2072 | saved_win32_errno = GetLastError(); |
2073 | #endif |
03136e13 |
2074 | } |
7c0587c8 |
2075 | #ifdef UTS |
6ad3d225 |
2076 | if(PerlProc_kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
7c0587c8 |
2077 | #endif |
ff68c719 |
2078 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
2079 | rsignal_save(SIGINT, SIG_IGN, &istat); |
2080 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); |
748a9306 |
2081 | do { |
1d3434b8 |
2082 | pid2 = wait4pid(pid, &status, 0); |
2083 | } while (pid2 == -1 && errno == EINTR); |
ff68c719 |
2084 | rsignal_restore(SIGHUP, &hstat); |
2085 | rsignal_restore(SIGINT, &istat); |
2086 | rsignal_restore(SIGQUIT, &qstat); |
03136e13 |
2087 | if (close_failed) { |
2088 | SETERRNO(saved_errno, saved_vaxc_errno); |
2089 | return -1; |
2090 | } |
1d3434b8 |
2091 | return(pid2 < 0 ? pid2 : status == 0 ? 0 : (errno = 0, status)); |
20188a90 |
2092 | } |
4633a7c4 |
2093 | #endif /* !DOSISH */ |
2094 | |
2d7a9237 |
2095 | #if !defined(DOSISH) || defined(OS2) || defined(WIN32) |
79072805 |
2096 | I32 |
8ac85365 |
2097 | wait4pid(int pid, int *statusp, int flags) |
20188a90 |
2098 | { |
79072805 |
2099 | SV *sv; |
2100 | SV** svp; |
fc36a67e |
2101 | char spid[TYPE_CHARS(int)]; |
20188a90 |
2102 | |
2103 | if (!pid) |
2104 | return -1; |
20188a90 |
2105 | if (pid > 0) { |
2106 | sprintf(spid, "%d", pid); |
79072805 |
2107 | svp = hv_fetch(pidstatus,spid,strlen(spid),FALSE); |
2108 | if (svp && *svp != &sv_undef) { |
463ee0b2 |
2109 | *statusp = SvIVX(*svp); |
748a9306 |
2110 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
2111 | return pid; |
2112 | } |
2113 | } |
2114 | else { |
79072805 |
2115 | HE *entry; |
20188a90 |
2116 | |
79072805 |
2117 | hv_iterinit(pidstatus); |
2118 | if (entry = hv_iternext(pidstatus)) { |
a0d0e21e |
2119 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
79072805 |
2120 | sv = hv_iterval(pidstatus,entry); |
463ee0b2 |
2121 | *statusp = SvIVX(sv); |
20188a90 |
2122 | sprintf(spid, "%d", pid); |
748a9306 |
2123 | (void)hv_delete(pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
2124 | return pid; |
2125 | } |
2126 | } |
79072805 |
2127 | #ifdef HAS_WAITPID |
367f3c24 |
2128 | # ifdef HAS_WAITPID_RUNTIME |
2129 | if (!HAS_WAITPID_RUNTIME) |
2130 | goto hard_way; |
2131 | # endif |
79072805 |
2132 | return waitpid(pid,statusp,flags); |
367f3c24 |
2133 | #endif |
2134 | #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) |
a0d0e21e |
2135 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
367f3c24 |
2136 | #endif |
2137 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) |
2138 | hard_way: |
a0d0e21e |
2139 | { |
2140 | I32 result; |
2141 | if (flags) |
2142 | croak("Can't do waitpid with flags"); |
2143 | else { |
76e3520e |
2144 | while ((result = PerlProc_wait(statusp)) != pid && pid > 0 && result >= 0) |
a0d0e21e |
2145 | pidgone(result,*statusp); |
2146 | if (result < 0) |
2147 | *statusp = -1; |
2148 | } |
2149 | return result; |
a687059c |
2150 | } |
2151 | #endif |
a687059c |
2152 | } |
2d7a9237 |
2153 | #endif /* !DOSISH || OS2 || WIN32 */ |
a687059c |
2154 | |
7c0587c8 |
2155 | void |
de3bb511 |
2156 | /*SUPPRESS 590*/ |
8ac85365 |
2157 | pidgone(int pid, int status) |
a687059c |
2158 | { |
79072805 |
2159 | register SV *sv; |
fc36a67e |
2160 | char spid[TYPE_CHARS(int)]; |
a687059c |
2161 | |
20188a90 |
2162 | sprintf(spid, "%d", pid); |
79072805 |
2163 | sv = *hv_fetch(pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e |
2164 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
2165 | SvIVX(sv) = status; |
20188a90 |
2166 | return; |
a687059c |
2167 | } |
2168 | |
55497cff |
2169 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 |
2170 | int pclose(); |
ddcf38b7 |
2171 | #ifdef HAS_FORK |
2172 | int /* Cannot prototype with I32 |
2173 | in os2ish.h. */ |
2174 | my_syspclose(ptr) |
2175 | #else |
79072805 |
2176 | I32 |
2177 | my_pclose(ptr) |
ddcf38b7 |
2178 | #endif |
760ac839 |
2179 | PerlIO *ptr; |
a687059c |
2180 | { |
760ac839 |
2181 | /* Needs work for PerlIO ! */ |
2182 | FILE *f = PerlIO_findFILE(ptr); |
2183 | I32 result = pclose(f); |
2184 | PerlIO_releaseFILE(ptr,f); |
2185 | return result; |
a687059c |
2186 | } |
7c0587c8 |
2187 | #endif |
9f68db38 |
2188 | |
2189 | void |
8ac85365 |
2190 | repeatcpy(register char *to, register char *from, I32 len, register I32 count) |
9f68db38 |
2191 | { |
79072805 |
2192 | register I32 todo; |
9f68db38 |
2193 | register char *frombase = from; |
2194 | |
2195 | if (len == 1) { |
2196 | todo = *from; |
2197 | while (count-- > 0) |
2198 | *to++ = todo; |
2199 | return; |
2200 | } |
2201 | while (count-- > 0) { |
2202 | for (todo = len; todo > 0; todo--) { |
2203 | *to++ = *from++; |
2204 | } |
2205 | from = frombase; |
2206 | } |
2207 | } |
0f85fab0 |
2208 | |
2209 | #ifndef CASTNEGFLOAT |
463ee0b2 |
2210 | U32 |
79072805 |
2211 | cast_ulong(f) |
0f85fab0 |
2212 | double f; |
2213 | { |
2214 | long along; |
2215 | |
27e2fb84 |
2216 | #if CASTFLAGS & 2 |
34de22dd |
2217 | # define BIGDOUBLE 2147483648.0 |
2218 | if (f >= BIGDOUBLE) |
2219 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; |
2220 | #endif |
0f85fab0 |
2221 | if (f >= 0.0) |
2222 | return (unsigned long)f; |
2223 | along = (long)f; |
2224 | return (unsigned long)along; |
2225 | } |
ed6116ce |
2226 | # undef BIGDOUBLE |
2227 | #endif |
2228 | |
2229 | #ifndef CASTI32 |
5d94fbed |
2230 | |
5d94fbed |
2231 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2232 | work with the system-supplied definition of ULONG_MAX. The |
2233 | comparison (f >= ULONG_MAX) always comes out true. It must be a |
2234 | problem with the compiler constant folding. |
2235 | |
2236 | In any case, this workaround should be fine on any two's complement |
2237 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your |
2238 | ccflags. |
2239 | --Andy Dougherty <doughera@lafcol.lafayette.edu> |
2240 | */ |
1eb770ff |
2241 | |
2242 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead |
2243 | of LONG_(MIN/MAX). |
2244 | -- Kenneth Albanowski <kjahds@kjahds.com> |
2245 | */ |
2246 | |
20cec16a |
2247 | #ifndef MY_UV_MAX |
2248 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) |
5d94fbed |
2249 | #endif |
2250 | |
ed6116ce |
2251 | I32 |
2252 | cast_i32(f) |
2253 | double f; |
2254 | { |
20cec16a |
2255 | if (f >= I32_MAX) |
2256 | return (I32) I32_MAX; |
2257 | if (f <= I32_MIN) |
2258 | return (I32) I32_MIN; |
ed6116ce |
2259 | return (I32) f; |
2260 | } |
a0d0e21e |
2261 | |
2262 | IV |
2263 | cast_iv(f) |
2264 | double f; |
2265 | { |
20cec16a |
2266 | if (f >= IV_MAX) |
2267 | return (IV) IV_MAX; |
2268 | if (f <= IV_MIN) |
2269 | return (IV) IV_MIN; |
a0d0e21e |
2270 | return (IV) f; |
2271 | } |
5d94fbed |
2272 | |
2273 | UV |
2274 | cast_uv(f) |
2275 | double f; |
2276 | { |
20cec16a |
2277 | if (f >= MY_UV_MAX) |
2278 | return (UV) MY_UV_MAX; |
5d94fbed |
2279 | return (UV) f; |
2280 | } |
2281 | |
0f85fab0 |
2282 | #endif |
62b28dd9 |
2283 | |
fe14fcc3 |
2284 | #ifndef HAS_RENAME |
79072805 |
2285 | I32 |
62b28dd9 |
2286 | same_dirent(a,b) |
2287 | char *a; |
2288 | char *b; |
2289 | { |
93a17b20 |
2290 | char *fa = strrchr(a,'/'); |
2291 | char *fb = strrchr(b,'/'); |
62b28dd9 |
2292 | struct stat tmpstatbuf1; |
2293 | struct stat tmpstatbuf2; |
46fc3d4c |
2294 | SV *tmpsv = sv_newmortal(); |
62b28dd9 |
2295 | |
2296 | if (fa) |
2297 | fa++; |
2298 | else |
2299 | fa = a; |
2300 | if (fb) |
2301 | fb++; |
2302 | else |
2303 | fb = b; |
2304 | if (strNE(a,b)) |
2305 | return FALSE; |
2306 | if (fa == a) |
46fc3d4c |
2307 | sv_setpv(tmpsv, "."); |
62b28dd9 |
2308 | else |
46fc3d4c |
2309 | sv_setpvn(tmpsv, a, fa - a); |
c6ed36e1 |
2310 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) |
62b28dd9 |
2311 | return FALSE; |
2312 | if (fb == b) |
46fc3d4c |
2313 | sv_setpv(tmpsv, "."); |
62b28dd9 |
2314 | else |
46fc3d4c |
2315 | sv_setpvn(tmpsv, b, fb - b); |
c6ed36e1 |
2316 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) |
62b28dd9 |
2317 | return FALSE; |
2318 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && |
2319 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; |
2320 | } |
fe14fcc3 |
2321 | #endif /* !HAS_RENAME */ |
2322 | |
55497cff |
2323 | UV |
8ac85365 |
2324 | scan_oct(char *start, I32 len, I32 *retlen) |
fe14fcc3 |
2325 | { |
2326 | register char *s = start; |
55497cff |
2327 | register UV retval = 0; |
2328 | bool overflowed = FALSE; |
fe14fcc3 |
2329 | |
748a9306 |
2330 | while (len && *s >= '0' && *s <= '7') { |
55497cff |
2331 | register UV n = retval << 3; |
2332 | if (!overflowed && (n >> 3) != retval) { |
2333 | warn("Integer overflow in octal number"); |
2334 | overflowed = TRUE; |
2335 | } |
2336 | retval = n | (*s++ - '0'); |
748a9306 |
2337 | len--; |
fe14fcc3 |
2338 | } |
748a9306 |
2339 | if (dowarn && len && (*s == '8' || *s == '9')) |
2340 | warn("Illegal octal digit ignored"); |
fe14fcc3 |
2341 | *retlen = s - start; |
2342 | return retval; |
2343 | } |
2344 | |
71be2cbc |
2345 | UV |
8ac85365 |
2346 | scan_hex(char *start, I32 len, I32 *retlen) |
fe14fcc3 |
2347 | { |
2348 | register char *s = start; |
55497cff |
2349 | register UV retval = 0; |
2350 | bool overflowed = FALSE; |
6ff81951 |
2351 | char *tmp = s; |
fe14fcc3 |
2352 | |
4e35701f |
2353 | while (len-- && *s && (tmp = strchr((char *) hexdigit, *s))) { |
55497cff |
2354 | register UV n = retval << 4; |
2355 | if (!overflowed && (n >> 4) != retval) { |
2356 | warn("Integer overflow in hex number"); |
2357 | overflowed = TRUE; |
2358 | } |
4e35701f |
2359 | retval = n | ((tmp - hexdigit) & 15); |
fe14fcc3 |
2360 | s++; |
2361 | } |
6ff81951 |
2362 | if (dowarn && !tmp) { |
2363 | warn("Illegal hex digit ignored"); |
2364 | } |
fe14fcc3 |
2365 | *retlen = s - start; |
2366 | return retval; |
2367 | } |
760ac839 |
2368 | |
491527d0 |
2369 | char* |
2370 | find_script(char *scriptname, bool dosearch, char **search_ext, I32 flags) |
2371 | { |
2372 | dTHR; |
2373 | char *xfound = Nullch; |
2374 | char *xfailed = Nullch; |
2375 | register char *s; |
2376 | I32 len; |
2377 | int retval; |
2378 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) |
2379 | # define SEARCH_EXTS ".bat", ".cmd", NULL |
2380 | # define MAX_EXT_LEN 4 |
2381 | #endif |
2382 | #ifdef OS2 |
2383 | # define SEARCH_EXTS ".cmd", ".btm", ".bat", ".pl", NULL |
2384 | # define MAX_EXT_LEN 4 |
2385 | #endif |
2386 | #ifdef VMS |
2387 | # define SEARCH_EXTS ".pl", ".com", NULL |
2388 | # define MAX_EXT_LEN 4 |
2389 | #endif |
2390 | /* additional extensions to try in each dir if scriptname not found */ |
2391 | #ifdef SEARCH_EXTS |
2392 | char *exts[] = { SEARCH_EXTS }; |
2393 | char **ext = search_ext ? search_ext : exts; |
2394 | int extidx = 0, i = 0; |
2395 | char *curext = Nullch; |
2396 | #else |
2397 | # define MAX_EXT_LEN 0 |
2398 | #endif |
2399 | |
2400 | /* |
2401 | * If dosearch is true and if scriptname does not contain path |
2402 | * delimiters, search the PATH for scriptname. |
2403 | * |
2404 | * If SEARCH_EXTS is also defined, will look for each |
2405 | * scriptname{SEARCH_EXTS} whenever scriptname is not found |
2406 | * while searching the PATH. |
2407 | * |
2408 | * Assuming SEARCH_EXTS is C<".foo",".bar",NULL>, PATH search |
2409 | * proceeds as follows: |
2410 | * If DOSISH or VMSISH: |
2411 | * + look for ./scriptname{,.foo,.bar} |
2412 | * + search the PATH for scriptname{,.foo,.bar} |
2413 | * |
2414 | * If !DOSISH: |
2415 | * + look *only* in the PATH for scriptname{,.foo,.bar} (note |
2416 | * this will not look in '.' if it's not in the PATH) |
2417 | */ |
2418 | |
2419 | #ifdef VMS |
2420 | # ifdef ALWAYS_DEFTYPES |
2421 | len = strlen(scriptname); |
2422 | if (!(len == 1 && *scriptname == '-') && scriptname[len-1] != ':') { |
2423 | int hasdir, idx = 0, deftypes = 1; |
2424 | bool seen_dot = 1; |
2425 | |
2426 | hasdir = !dosearch || (strpbrk(scriptname,":[</") != Nullch) ; |
2427 | # else |
2428 | if (dosearch) { |
2429 | int hasdir, idx = 0, deftypes = 1; |
2430 | bool seen_dot = 1; |
2431 | |
2432 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; |
2433 | # endif |
2434 | /* The first time through, just add SEARCH_EXTS to whatever we |
2435 | * already have, so we can check for default file types. */ |
2436 | while (deftypes || |
2437 | (!hasdir && my_trnlnm("DCL$PATH",tokenbuf,idx++)) ) |
2438 | { |
2439 | if (deftypes) { |
2440 | deftypes = 0; |
2441 | *tokenbuf = '\0'; |
2442 | } |
2443 | if ((strlen(tokenbuf) + strlen(scriptname) |
2444 | + MAX_EXT_LEN) >= sizeof tokenbuf) |
2445 | continue; /* don't search dir with too-long name */ |
2446 | strcat(tokenbuf, scriptname); |
2447 | #else /* !VMS */ |
2448 | |
2449 | #ifdef DOSISH |
2450 | if (strEQ(scriptname, "-")) |
2451 | dosearch = 0; |
2452 | if (dosearch) { /* Look in '.' first. */ |
2453 | char *cur = scriptname; |
2454 | #ifdef SEARCH_EXTS |
2455 | if ((curext = strrchr(scriptname,'.'))) /* possible current ext */ |
2456 | while (ext[i]) |
2457 | if (strEQ(ext[i++],curext)) { |
2458 | extidx = -1; /* already has an ext */ |
2459 | break; |
2460 | } |
2461 | do { |
2462 | #endif |
2463 | DEBUG_p(PerlIO_printf(Perl_debug_log, |
2464 | "Looking for %s\n",cur)); |
2465 | if (PerlLIO_stat(cur,&statbuf) >= 0) { |
2466 | dosearch = 0; |
2467 | scriptname = cur; |
2468 | #ifdef SEARCH_EXTS |
2469 | break; |
2470 | #endif |
2471 | } |
2472 | #ifdef SEARCH_EXTS |
2473 | if (cur == scriptname) { |
2474 | len = strlen(scriptname); |
2475 | if (len+MAX_EXT_LEN+1 >= sizeof(tokenbuf)) |
2476 | break; |
2477 | cur = strcpy(tokenbuf, scriptname); |
2478 | } |
2479 | } while (extidx >= 0 && ext[extidx] /* try an extension? */ |
2480 | && strcpy(tokenbuf+len, ext[extidx++])); |
2481 | #endif |
2482 | } |
2483 | #endif |
2484 | |
2485 | if (dosearch && !strchr(scriptname, '/') |
2486 | #ifdef DOSISH |
2487 | && !strchr(scriptname, '\\') |
2488 | #endif |
2489 | && (s = PerlEnv_getenv("PATH"))) { |
2490 | bool seen_dot = 0; |
2491 | |
2492 | bufend = s + strlen(s); |
2493 | while (s < bufend) { |
2494 | #if defined(atarist) || defined(DOSISH) |
2495 | for (len = 0; *s |
2496 | # ifdef atarist |
2497 | && *s != ',' |
2498 | # endif |
2499 | && *s != ';'; len++, s++) { |
2500 | if (len < sizeof tokenbuf) |
2501 | tokenbuf[len] = *s; |
2502 | } |
2503 | if (len < sizeof tokenbuf) |
2504 | tokenbuf[len] = '\0'; |
2505 | #else /* ! (atarist || DOSISH) */ |
2506 | s = delimcpy(tokenbuf, tokenbuf + sizeof tokenbuf, s, bufend, |
2507 | ':', |
2508 | &len); |
2509 | #endif /* ! (atarist || DOSISH) */ |
2510 | if (s < bufend) |
2511 | s++; |
2512 | if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tokenbuf) |
2513 | continue; /* don't search dir with too-long name */ |
2514 | if (len |
2515 | #if defined(atarist) || defined(DOSISH) |
2516 | && tokenbuf[len - 1] != '/' |
2517 | && tokenbuf[len - 1] != '\\' |
2518 | #endif |
2519 | ) |
2520 | tokenbuf[len++] = '/'; |
2521 | if (len == 2 && tokenbuf[0] == '.') |
2522 | seen_dot = 1; |
2523 | (void)strcpy(tokenbuf + len, scriptname); |
2524 | #endif /* !VMS */ |
2525 | |
2526 | #ifdef SEARCH_EXTS |
2527 | len = strlen(tokenbuf); |
2528 | if (extidx > 0) /* reset after previous loop */ |
2529 | extidx = 0; |
2530 | do { |
2531 | #endif |
2532 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tokenbuf)); |
2533 | retval = PerlLIO_stat(tokenbuf,&statbuf); |
2534 | #ifdef SEARCH_EXTS |
2535 | } while ( retval < 0 /* not there */ |
2536 | && extidx>=0 && ext[extidx] /* try an extension? */ |
2537 | && strcpy(tokenbuf+len, ext[extidx++]) |
2538 | ); |
2539 | #endif |
2540 | if (retval < 0) |
2541 | continue; |
2542 | if (S_ISREG(statbuf.st_mode) |
2543 | && cando(S_IRUSR,TRUE,&statbuf) |
2544 | #ifndef DOSISH |
2545 | && cando(S_IXUSR,TRUE,&statbuf) |
2546 | #endif |
2547 | ) |
2548 | { |
2549 | xfound = tokenbuf; /* bingo! */ |
2550 | break; |
2551 | } |
2552 | if (!xfailed) |
2553 | xfailed = savepv(tokenbuf); |
2554 | } |
2555 | #ifndef DOSISH |
2556 | if (!xfound && !seen_dot && !xfailed && (PerlLIO_stat(scriptname,&statbuf) < 0)) |
2557 | #endif |
2558 | seen_dot = 1; /* Disable message. */ |
2559 | if (!xfound) |
2560 | scriptname = NULL; |
2561 | /* croak("Can't %s %s%s%s", |
2562 | (xfailed ? "execute" : "find"), |
2563 | (xfailed ? xfailed : scriptname), |
2564 | (xfailed ? "" : " on PATH"), |
2565 | (xfailed || seen_dot) ? "" : ", '.' not in PATH"); */ |
2566 | if (xfailed) |
2567 | Safefree(xfailed); |
2568 | scriptname = xfound; |
2569 | } |
2570 | return scriptname; |
2571 | } |
2572 | |
2573 | |
11343788 |
2574 | #ifdef USE_THREADS |
12ca11f6 |
2575 | #ifdef FAKE_THREADS |
2576 | /* Very simplistic scheduler for now */ |
2577 | void |
2578 | schedule(void) |
2579 | { |
c7848ba1 |
2580 | thr = thr->i.next_run; |
12ca11f6 |
2581 | } |
2582 | |
2583 | void |
2584 | perl_cond_init(cp) |
2585 | perl_cond *cp; |
2586 | { |
2587 | *cp = 0; |
2588 | } |
2589 | |
2590 | void |
2591 | perl_cond_signal(cp) |
2592 | perl_cond *cp; |
2593 | { |
51dd5992 |
2594 | perl_os_thread t; |
12ca11f6 |
2595 | perl_cond cond = *cp; |
2596 | |
2597 | if (!cond) |
2598 | return; |
2599 | t = cond->thread; |
2600 | /* Insert t in the runnable queue just ahead of us */ |
c7848ba1 |
2601 | t->i.next_run = thr->i.next_run; |
2602 | thr->i.next_run->i.prev_run = t; |
2603 | t->i.prev_run = thr; |
2604 | thr->i.next_run = t; |
2605 | thr->i.wait_queue = 0; |
12ca11f6 |
2606 | /* Remove from the wait queue */ |
2607 | *cp = cond->next; |
2608 | Safefree(cond); |
2609 | } |
2610 | |
2611 | void |
2612 | perl_cond_broadcast(cp) |
2613 | perl_cond *cp; |
2614 | { |
51dd5992 |
2615 | perl_os_thread t; |
12ca11f6 |
2616 | perl_cond cond, cond_next; |
2617 | |
2618 | for (cond = *cp; cond; cond = cond_next) { |
2619 | t = cond->thread; |
2620 | /* Insert t in the runnable queue just ahead of us */ |
c7848ba1 |
2621 | t->i.next_run = thr->i.next_run; |
2622 | thr->i.next_run->i.prev_run = t; |
2623 | t->i.prev_run = thr; |
2624 | thr->i.next_run = t; |
2625 | thr->i.wait_queue = 0; |
12ca11f6 |
2626 | /* Remove from the wait queue */ |
2627 | cond_next = cond->next; |
2628 | Safefree(cond); |
2629 | } |
2630 | *cp = 0; |
2631 | } |
2632 | |
2633 | void |
2634 | perl_cond_wait(cp) |
2635 | perl_cond *cp; |
2636 | { |
2637 | perl_cond cond; |
2638 | |
c7848ba1 |
2639 | if (thr->i.next_run == thr) |
12ca11f6 |
2640 | croak("panic: perl_cond_wait called by last runnable thread"); |
2641 | |
0f15f207 |
2642 | New(666, cond, 1, struct perl_wait_queue); |
12ca11f6 |
2643 | cond->thread = thr; |
2644 | cond->next = *cp; |
2645 | *cp = cond; |
c7848ba1 |
2646 | thr->i.wait_queue = cond; |
12ca11f6 |
2647 | /* Remove ourselves from runnable queue */ |
c7848ba1 |
2648 | thr->i.next_run->i.prev_run = thr->i.prev_run; |
2649 | thr->i.prev_run->i.next_run = thr->i.next_run; |
12ca11f6 |
2650 | } |
2651 | #endif /* FAKE_THREADS */ |
2652 | |
11343788 |
2653 | #ifdef OLD_PTHREADS_API |
52e1cb5e |
2654 | struct perl_thread * |
11343788 |
2655 | getTHR _((void)) |
2656 | { |
2657 | pthread_addr_t t; |
2658 | |
2659 | if (pthread_getspecific(thr_key, &t)) |
2660 | croak("panic: pthread_getspecific"); |
52e1cb5e |
2661 | return (struct perl_thread *) t; |
11343788 |
2662 | } |
2663 | #endif /* OLD_PTHREADS_API */ |
f93b4edd |
2664 | |
2665 | MAGIC * |
8ac85365 |
2666 | condpair_magic(SV *sv) |
f93b4edd |
2667 | { |
2668 | MAGIC *mg; |
2669 | |
2670 | SvUPGRADE(sv, SVt_PVMG); |
2671 | mg = mg_find(sv, 'm'); |
2672 | if (!mg) { |
2673 | condpair_t *cp; |
2674 | |
2675 | New(53, cp, 1, condpair_t); |
2676 | MUTEX_INIT(&cp->mutex); |
2677 | COND_INIT(&cp->owner_cond); |
2678 | COND_INIT(&cp->cond); |
2679 | cp->owner = 0; |
940cb80d |
2680 | LOCK_SV_MUTEX; |
f93b4edd |
2681 | mg = mg_find(sv, 'm'); |
2682 | if (mg) { |
2683 | /* someone else beat us to initialising it */ |
940cb80d |
2684 | UNLOCK_SV_MUTEX; |
f93b4edd |
2685 | MUTEX_DESTROY(&cp->mutex); |
2686 | COND_DESTROY(&cp->owner_cond); |
2687 | COND_DESTROY(&cp->cond); |
2688 | Safefree(cp); |
2689 | } |
2690 | else { |
2691 | sv_magic(sv, Nullsv, 'm', 0, 0); |
2692 | mg = SvMAGIC(sv); |
2693 | mg->mg_ptr = (char *)cp; |
565764a8 |
2694 | mg->mg_len = sizeof(cp); |
940cb80d |
2695 | UNLOCK_SV_MUTEX; |
bc1f4c86 |
2696 | DEBUG_L(WITH_THR(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
2697 | "%p: condpair_magic %p\n", thr, sv));) |
f93b4edd |
2698 | } |
2699 | } |
2700 | return mg; |
2701 | } |
a863c7d1 |
2702 | |
2703 | /* |
199100c8 |
2704 | * Make a new perl thread structure using t as a prototype. Some of the |
2705 | * fields for the new thread are copied from the prototype thread, t, |
2706 | * so t should not be running in perl at the time this function is |
2707 | * called. The use by ext/Thread/Thread.xs in core perl (where t is the |
2708 | * thread calling new_struct_thread) clearly satisfies this constraint. |
a863c7d1 |
2709 | */ |
52e1cb5e |
2710 | struct perl_thread * |
2711 | new_struct_thread(struct perl_thread *t) |
a863c7d1 |
2712 | { |
52e1cb5e |
2713 | struct perl_thread *thr; |
a863c7d1 |
2714 | SV *sv; |
199100c8 |
2715 | SV **svp; |
2716 | I32 i; |
2717 | |
2718 | sv = newSVpv("", 0); |
52e1cb5e |
2719 | SvGROW(sv, sizeof(struct perl_thread) + 1); |
2720 | SvCUR_set(sv, sizeof(struct perl_thread)); |
199100c8 |
2721 | thr = (Thread) SvPVX(sv); |
199100c8 |
2722 | /* debug */ |
52e1cb5e |
2723 | memset(thr, 0xab, sizeof(struct perl_thread)); |
199100c8 |
2724 | markstack = 0; |
2725 | scopestack = 0; |
2726 | savestack = 0; |
2727 | retstack = 0; |
2728 | dirty = 0; |
2729 | localizing = 0; |
2730 | /* end debug */ |
2731 | |
2732 | thr->oursv = sv; |
d55594ae |
2733 | init_stacks(ARGS); |
a863c7d1 |
2734 | |
a863c7d1 |
2735 | curcop = &compiling; |
199100c8 |
2736 | thr->cvcache = newHV(); |
54b9620d |
2737 | thr->threadsv = newAV(); |
a863c7d1 |
2738 | thr->specific = newAV(); |
38a03e6e |
2739 | thr->errsv = newSVpv("", 0); |
2740 | thr->errhv = newHV(); |
a863c7d1 |
2741 | thr->flags = THRf_R_JOINABLE; |
2742 | MUTEX_INIT(&thr->mutex); |
199100c8 |
2743 | |
2744 | curcop = t->Tcurcop; /* XXX As good a guess as any? */ |
2745 | defstash = t->Tdefstash; /* XXX maybe these should */ |
2746 | curstash = t->Tcurstash; /* always be set to main? */ |
d55594ae |
2747 | |
2748 | |
2749 | /* top_env needs to be non-zero. It points to an area |
2750 | in which longjmp() stuff is stored, as C callstack |
2751 | info there at least is thread specific this has to |
2752 | be per-thread. Otherwise a 'die' in a thread gives |
2753 | that thread the C stack of last thread to do an eval {}! |
2754 | See comments in scope.h |
2755 | Initialize top entry (as in perl.c for main thread) |
2756 | */ |
2757 | start_env.je_prev = NULL; |
2758 | start_env.je_ret = -1; |
2759 | start_env.je_mustcatch = TRUE; |
2760 | top_env = &start_env; |
2761 | |
199100c8 |
2762 | in_eval = FALSE; |
2763 | restartop = 0; |
2764 | |
2765 | tainted = t->Ttainted; |
2766 | curpm = t->Tcurpm; /* XXX No PMOP ref count */ |
2767 | nrs = newSVsv(t->Tnrs); |
2768 | rs = newSVsv(t->Trs); |
2769 | last_in_gv = (GV*)SvREFCNT_inc(t->Tlast_in_gv); |
2770 | ofslen = t->Tofslen; |
2771 | ofs = savepvn(t->Tofs, ofslen); |
2772 | defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); |
2773 | chopset = t->Tchopset; |
2774 | formtarget = newSVsv(t->Tformtarget); |
2775 | bodytarget = newSVsv(t->Tbodytarget); |
2776 | toptarget = newSVsv(t->Ttoptarget); |
2777 | |
54b9620d |
2778 | /* Initialise all per-thread SVs that the template thread used */ |
2779 | svp = AvARRAY(t->threadsv); |
93965878 |
2780 | for (i = 0; i <= AvFILLp(t->threadsv); i++, svp++) { |
199100c8 |
2781 | if (*svp && *svp != &sv_undef) { |
2782 | SV *sv = newSVsv(*svp); |
54b9620d |
2783 | av_store(thr->threadsv, i, sv); |
2784 | sv_magic(sv, 0, 0, &threadsv_names[i], 1); |
199100c8 |
2785 | DEBUG_L(PerlIO_printf(PerlIO_stderr(), |
54b9620d |
2786 | "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr)); |
199100c8 |
2787 | } |
2788 | } |
940cb80d |
2789 | thr->threadsvp = AvARRAY(thr->threadsv); |
199100c8 |
2790 | |
a863c7d1 |
2791 | MUTEX_LOCK(&threads_mutex); |
2792 | nthreads++; |
199100c8 |
2793 | thr->tid = ++threadnum; |
2794 | thr->next = t->next; |
2795 | thr->prev = t; |
2796 | t->next = thr; |
2797 | thr->next->prev = thr; |
a863c7d1 |
2798 | MUTEX_UNLOCK(&threads_mutex); |
2799 | |
2800 | #ifdef HAVE_THREAD_INTERN |
2801 | init_thread_intern(thr); |
a863c7d1 |
2802 | #endif /* HAVE_THREAD_INTERN */ |
a863c7d1 |
2803 | return thr; |
2804 | } |
11343788 |
2805 | #endif /* USE_THREADS */ |
760ac839 |
2806 | |
2807 | #ifdef HUGE_VAL |
2808 | /* |
2809 | * This hack is to force load of "huge" support from libm.a |
2810 | * So it is in perl for (say) POSIX to use. |
2811 | * Needed for SunOS with Sun's 'acc' for example. |
2812 | */ |
2813 | double |
8ac85365 |
2814 | Perl_huge(void) |
760ac839 |
2815 | { |
2816 | return HUGE_VAL; |
2817 | } |
2818 | #endif |
4e35701f |
2819 | |
22239a37 |
2820 | #ifdef PERL_GLOBAL_STRUCT |
2821 | struct perl_vars * |
2822 | Perl_GetVars(void) |
2823 | { |
2824 | return &Perl_Vars; |
2825 | } |
31fb1209 |
2826 | #endif |
2827 | |
2828 | char ** |
2829 | get_op_names(void) |
2830 | { |
2831 | return op_name; |
2832 | } |
2833 | |
2834 | char ** |
2835 | get_op_descs(void) |
2836 | { |
2837 | return op_desc; |
2838 | } |
9e6b2b00 |
2839 | |
2840 | char * |
2841 | get_no_modify(void) |
2842 | { |
2843 | return (char*)no_modify; |
2844 | } |
2845 | |
2846 | U32 * |
2847 | get_opargs(void) |
2848 | { |
2849 | return opargs; |
2850 | } |