Commit | Line | Data |
a0d0e21e |
1 | /* util.c |
a687059c |
2 | * |
4eb8286e |
3 | * Copyright (c) 1991-1999, 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" |
864dbfa3 |
16 | #define PERL_IN_UTIL_C |
8d063cd8 |
17 | #include "perl.h" |
62b28dd9 |
18 | |
e1dfb34b |
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 | long xcount[MAXXCOUNT]; |
59 | long lastxcount[MAXXCOUNT]; |
60 | long xycount[MAXXCOUNT][MAXYCOUNT]; |
61 | long lastxycount[MAXXCOUNT][MAXYCOUNT]; |
62 | |
a0d0e21e |
63 | #endif |
a863c7d1 |
64 | |
f2517201 |
65 | /* paranoid version of system's malloc() */ |
8d063cd8 |
66 | |
a687059c |
67 | /* NOTE: Do not call the next three routines directly. Use the macros |
68 | * in handy.h, so that we can easily redefine everything to do tracking of |
69 | * allocated hunks back to the original New to track down any memory leaks. |
20cec16a |
70 | * XXX This advice seems to be widely ignored :-( --AD August 1996. |
a687059c |
71 | */ |
72 | |
bd4080b3 |
73 | Malloc_t |
4f63d024 |
74 | Perl_safesysmalloc(MEM_SIZE size) |
8d063cd8 |
75 | { |
bd4080b3 |
76 | Malloc_t ptr; |
55497cff |
77 | #ifdef HAS_64K_LIMIT |
62b28dd9 |
78 | if (size > 0xffff) { |
760ac839 |
79 | PerlIO_printf(PerlIO_stderr(), "Allocation too large: %lx\n", size) FLUSH; |
4f63d024 |
80 | WITH_THX(my_exit(1)); |
62b28dd9 |
81 | } |
55497cff |
82 | #endif /* HAS_64K_LIMIT */ |
34de22dd |
83 | #ifdef DEBUGGING |
84 | if ((long)size < 0) |
4f63d024 |
85 | Perl_croak_nocontext("panic: malloc"); |
34de22dd |
86 | #endif |
6ad3d225 |
87 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
79072805 |
88 | #if !(defined(I286) || defined(atarist)) |
3280af22 |
89 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size)); |
79072805 |
90 | #else |
6b88bc9c |
91 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) malloc %ld bytes\n",ptr,PL_an++,(long)size)); |
8d063cd8 |
92 | #endif |
93 | if (ptr != Nullch) |
94 | return ptr; |
3280af22 |
95 | else if (PL_nomemok) |
7c0587c8 |
96 | return Nullch; |
8d063cd8 |
97 | else { |
22c35a8c |
98 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
4f63d024 |
99 | WITH_THX(my_exit(1)); |
4e35701f |
100 | return Nullch; |
8d063cd8 |
101 | } |
102 | /*NOTREACHED*/ |
103 | } |
104 | |
f2517201 |
105 | /* paranoid version of system's realloc() */ |
8d063cd8 |
106 | |
bd4080b3 |
107 | Malloc_t |
4f63d024 |
108 | Perl_safesysrealloc(Malloc_t where,MEM_SIZE size) |
8d063cd8 |
109 | { |
bd4080b3 |
110 | Malloc_t ptr; |
ecfc5424 |
111 | #if !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) |
6ad3d225 |
112 | Malloc_t PerlMem_realloc(); |
ecfc5424 |
113 | #endif /* !defined(STANDARD_C) && !defined(HAS_REALLOC_PROTOTYPE) */ |
8d063cd8 |
114 | |
55497cff |
115 | #ifdef HAS_64K_LIMIT |
5f05dabc |
116 | if (size > 0xffff) { |
117 | PerlIO_printf(PerlIO_stderr(), |
118 | "Reallocation too large: %lx\n", size) FLUSH; |
4f63d024 |
119 | WITH_THX(my_exit(1)); |
5f05dabc |
120 | } |
55497cff |
121 | #endif /* HAS_64K_LIMIT */ |
7614df0c |
122 | if (!size) { |
f2517201 |
123 | safesysfree(where); |
7614df0c |
124 | return NULL; |
125 | } |
126 | |
378cc40b |
127 | if (!where) |
f2517201 |
128 | return safesysmalloc(size); |
34de22dd |
129 | #ifdef DEBUGGING |
130 | if ((long)size < 0) |
4f63d024 |
131 | Perl_croak_nocontext("panic: realloc"); |
34de22dd |
132 | #endif |
7614df0c |
133 | ptr = PerlMem_realloc(where,size); |
79072805 |
134 | |
135 | #if !(defined(I286) || defined(atarist)) |
136 | DEBUG_m( { |
3280af22 |
137 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) rfree\n",where,PL_an++); |
138 | PerlIO_printf(Perl_debug_log, "0x%x: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size); |
79072805 |
139 | } ) |
140 | #else |
141 | DEBUG_m( { |
6b88bc9c |
142 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) rfree\n",where,PL_an++); |
143 | PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) realloc %ld bytes\n",ptr,PL_an++,(long)size); |
79072805 |
144 | } ) |
8d063cd8 |
145 | #endif |
79072805 |
146 | |
8d063cd8 |
147 | if (ptr != Nullch) |
148 | return ptr; |
3280af22 |
149 | else if (PL_nomemok) |
7c0587c8 |
150 | return Nullch; |
8d063cd8 |
151 | else { |
22c35a8c |
152 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
4f63d024 |
153 | WITH_THX(my_exit(1)); |
4e35701f |
154 | return Nullch; |
8d063cd8 |
155 | } |
156 | /*NOTREACHED*/ |
157 | } |
158 | |
f2517201 |
159 | /* safe version of system's free() */ |
8d063cd8 |
160 | |
54310121 |
161 | Free_t |
4f63d024 |
162 | Perl_safesysfree(Malloc_t where) |
8d063cd8 |
163 | { |
79072805 |
164 | #if !(defined(I286) || defined(atarist)) |
3280af22 |
165 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%x: (%05d) free\n",(char *) where,PL_an++)); |
79072805 |
166 | #else |
6b88bc9c |
167 | DEBUG_m( PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) free\n",(char *) where,PL_an++)); |
8d063cd8 |
168 | #endif |
378cc40b |
169 | if (where) { |
de3bb511 |
170 | /*SUPPRESS 701*/ |
6ad3d225 |
171 | PerlMem_free(where); |
378cc40b |
172 | } |
8d063cd8 |
173 | } |
174 | |
f2517201 |
175 | /* safe version of system's calloc() */ |
1050c9ca |
176 | |
bd4080b3 |
177 | Malloc_t |
4f63d024 |
178 | Perl_safesyscalloc(MEM_SIZE count, MEM_SIZE size) |
1050c9ca |
179 | { |
bd4080b3 |
180 | Malloc_t ptr; |
1050c9ca |
181 | |
55497cff |
182 | #ifdef HAS_64K_LIMIT |
5f05dabc |
183 | if (size * count > 0xffff) { |
184 | PerlIO_printf(PerlIO_stderr(), |
185 | "Allocation too large: %lx\n", size * count) FLUSH; |
4f63d024 |
186 | WITH_THX(my_exit(1)); |
5f05dabc |
187 | } |
55497cff |
188 | #endif /* HAS_64K_LIMIT */ |
1050c9ca |
189 | #ifdef DEBUGGING |
190 | if ((long)size < 0 || (long)count < 0) |
4f63d024 |
191 | Perl_croak_nocontext("panic: calloc"); |
1050c9ca |
192 | #endif |
0b7c1c42 |
193 | size *= count; |
6ad3d225 |
194 | ptr = PerlMem_malloc(size?size:1); /* malloc(0) is NASTY on our system */ |
1050c9ca |
195 | #if !(defined(I286) || defined(atarist)) |
3280af22 |
196 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%x: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size)); |
1050c9ca |
197 | #else |
6b88bc9c |
198 | DEBUG_m(PerlIO_printf(Perl_debug_log, "0x%lx: (%05d) calloc %ld x %ld bytes\n",ptr,PL_an++,(long)count,(long)size)); |
1050c9ca |
199 | #endif |
1050c9ca |
200 | if (ptr != Nullch) { |
201 | memset((void*)ptr, 0, size); |
202 | return ptr; |
203 | } |
3280af22 |
204 | else if (PL_nomemok) |
1050c9ca |
205 | return Nullch; |
206 | else { |
22c35a8c |
207 | PerlIO_puts(PerlIO_stderr(),PL_no_mem) FLUSH; |
4f63d024 |
208 | WITH_THX(my_exit(1)); |
4e35701f |
209 | return Nullch; |
1050c9ca |
210 | } |
211 | /*NOTREACHED*/ |
212 | } |
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 |
4f63d024 |
238 | Perl_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 |
4f63d024 |
250 | Perl_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 |
4f63d024 |
271 | Perl_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 |
4f63d024 |
288 | Perl_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 | |
864dbfa3 |
299 | STATIC void |
cea2e8a9 |
300 | S_xstat(pTHX_ 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 * |
864dbfa3 |
359 | Perl_delimcpy(pTHX_ 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 * |
864dbfa3 |
388 | Perl_instr(pTHX_ register const char *big, register const char *little) |
378cc40b |
389 | { |
08105a92 |
390 | register const char *s, *x; |
79072805 |
391 | register I32 first; |
378cc40b |
392 | |
a687059c |
393 | if (!little) |
08105a92 |
394 | return (char*)big; |
a687059c |
395 | first = *little++; |
378cc40b |
396 | if (!first) |
08105a92 |
397 | return (char*)big; |
378cc40b |
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) |
08105a92 |
410 | return (char*)(big-1); |
378cc40b |
411 | } |
412 | return Nullch; |
413 | } |
8d063cd8 |
414 | |
a687059c |
415 | /* same as instr but allow embedded nulls */ |
416 | |
417 | char * |
864dbfa3 |
418 | Perl_ninstr(pTHX_ register const char *big, register const char *bigend, const char *little, const char *lend) |
8d063cd8 |
419 | { |
08105a92 |
420 | register const char *s, *x; |
79072805 |
421 | register I32 first = *little; |
08105a92 |
422 | register const char *littleend = lend; |
378cc40b |
423 | |
a0d0e21e |
424 | if (!first && little >= littleend) |
08105a92 |
425 | return (char*)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) |
08105a92 |
439 | return (char*)(big-1); |
378cc40b |
440 | } |
a687059c |
441 | return Nullch; |
442 | } |
443 | |
444 | /* reverse of the above--find last substring */ |
445 | |
446 | char * |
864dbfa3 |
447 | Perl_rninstr(pTHX_ register const char *big, const char *bigend, const char *little, const char *lend) |
a687059c |
448 | { |
08105a92 |
449 | register const char *bigbeg; |
450 | register const char *s, *x; |
79072805 |
451 | register I32 first = *little; |
08105a92 |
452 | register const char *littleend = lend; |
a687059c |
453 | |
a0d0e21e |
454 | if (!first && little >= littleend) |
08105a92 |
455 | return (char*)bigend; |
a687059c |
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) |
08105a92 |
468 | return (char*)(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 |
864dbfa3 |
477 | Perl_new_ctype(pTHX_ const 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)) |
22c35a8c |
485 | PL_fold_locale[i] = toLOWER_LC(i); |
bbce6d69 |
486 | else if (isLOWER_LC(i)) |
22c35a8c |
487 | PL_fold_locale[i] = toUPPER_LC(i); |
bbce6d69 |
488 | else |
22c35a8c |
489 | PL_fold_locale[i] = i; |
bbce6d69 |
490 | } |
bbce6d69 |
491 | |
36477c24 |
492 | #endif /* USE_LOCALE_CTYPE */ |
493 | } |
bbce6d69 |
494 | |
495 | /* |
496 | * Set up for a new collation locale. |
497 | */ |
498 | void |
864dbfa3 |
499 | Perl_new_collate(pTHX_ const char *newcoll) |
bbce6d69 |
500 | { |
36477c24 |
501 | #ifdef USE_LOCALE_COLLATE |
502 | |
bbce6d69 |
503 | if (! newcoll) { |
3280af22 |
504 | if (PL_collation_name) { |
505 | ++PL_collation_ix; |
506 | Safefree(PL_collation_name); |
507 | PL_collation_name = NULL; |
508 | PL_collation_standard = TRUE; |
509 | PL_collxfrm_base = 0; |
510 | PL_collxfrm_mult = 2; |
bbce6d69 |
511 | } |
512 | return; |
513 | } |
514 | |
3280af22 |
515 | if (! PL_collation_name || strNE(PL_collation_name, newcoll)) { |
516 | ++PL_collation_ix; |
517 | Safefree(PL_collation_name); |
518 | PL_collation_name = savepv(newcoll); |
519 | PL_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) |
cea2e8a9 |
530 | Perl_croak(aTHX_ "strxfrm() gets absurd"); |
3280af22 |
531 | PL_collxfrm_base = (fa > mult) ? (fa - mult) : 0; |
532 | PL_collxfrm_mult = mult; |
bbce6d69 |
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 |
864dbfa3 |
543 | Perl_new_numeric(pTHX_ const char *newnum) |
bbce6d69 |
544 | { |
36477c24 |
545 | #ifdef USE_LOCALE_NUMERIC |
546 | |
bbce6d69 |
547 | if (! newnum) { |
3280af22 |
548 | if (PL_numeric_name) { |
549 | Safefree(PL_numeric_name); |
550 | PL_numeric_name = NULL; |
551 | PL_numeric_standard = TRUE; |
552 | PL_numeric_local = TRUE; |
bbce6d69 |
553 | } |
554 | return; |
555 | } |
556 | |
3280af22 |
557 | if (! PL_numeric_name || strNE(PL_numeric_name, newnum)) { |
558 | Safefree(PL_numeric_name); |
559 | PL_numeric_name = savepv(newnum); |
560 | PL_numeric_standard = (strEQ(newnum, "C") || strEQ(newnum, "POSIX")); |
561 | PL_numeric_local = TRUE; |
bbce6d69 |
562 | } |
36477c24 |
563 | |
564 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
565 | } |
566 | |
567 | void |
864dbfa3 |
568 | Perl_set_numeric_standard(pTHX) |
bbce6d69 |
569 | { |
5f05dabc |
570 | #ifdef USE_LOCALE_NUMERIC |
571 | |
3280af22 |
572 | if (! PL_numeric_standard) { |
bbce6d69 |
573 | setlocale(LC_NUMERIC, "C"); |
3280af22 |
574 | PL_numeric_standard = TRUE; |
575 | PL_numeric_local = FALSE; |
bbce6d69 |
576 | } |
5f05dabc |
577 | |
578 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
579 | } |
580 | |
581 | void |
864dbfa3 |
582 | Perl_set_numeric_local(pTHX) |
bbce6d69 |
583 | { |
5f05dabc |
584 | #ifdef USE_LOCALE_NUMERIC |
585 | |
3280af22 |
586 | if (! PL_numeric_local) { |
587 | setlocale(LC_NUMERIC, PL_numeric_name); |
588 | PL_numeric_standard = FALSE; |
589 | PL_numeric_local = TRUE; |
bbce6d69 |
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 |
864dbfa3 |
600 | Perl_init_i18nl10n(pTHX_ 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 */ |
3aeabbed |
620 | #ifdef __GLIBC__ |
621 | char *language = PerlEnv_getenv("LANGUAGE"); |
622 | #endif |
76e3520e |
623 | char *lc_all = PerlEnv_getenv("LC_ALL"); |
624 | char *lang = PerlEnv_getenv("LANG"); |
bbce6d69 |
625 | bool setlocale_failure = FALSE; |
f0c5b223 |
626 | |
02b32252 |
627 | #ifdef LOCALE_ENVIRON_REQUIRED |
628 | |
629 | /* |
630 | * Ultrix setlocale(..., "") fails if there are no environment |
631 | * variables from which to get a locale name. |
632 | */ |
633 | |
634 | bool done = FALSE; |
635 | |
636 | #ifdef LC_ALL |
637 | if (lang) { |
638 | if (setlocale(LC_ALL, "")) |
639 | done = TRUE; |
640 | else |
641 | setlocale_failure = TRUE; |
642 | } |
0644c9cb |
643 | if (!setlocale_failure) { |
02b32252 |
644 | #ifdef USE_LOCALE_CTYPE |
0644c9cb |
645 | if (! (curctype = |
646 | setlocale(LC_CTYPE, |
647 | (!done && (lang || PerlEnv_getenv("LC_CTYPE"))) |
02b32252 |
648 | ? "" : Nullch))) |
649 | setlocale_failure = TRUE; |
650 | #endif /* USE_LOCALE_CTYPE */ |
651 | #ifdef USE_LOCALE_COLLATE |
0644c9cb |
652 | if (! (curcoll = |
653 | setlocale(LC_COLLATE, |
654 | (!done && (lang || PerlEnv_getenv("LC_COLLATE"))) |
02b32252 |
655 | ? "" : Nullch))) |
656 | setlocale_failure = TRUE; |
657 | #endif /* USE_LOCALE_COLLATE */ |
658 | #ifdef USE_LOCALE_NUMERIC |
0644c9cb |
659 | if (! (curnum = |
660 | setlocale(LC_NUMERIC, |
661 | (!done && (lang || PerlEnv_getenv("LC_NUMERIC"))) |
02b32252 |
662 | ? "" : Nullch))) |
663 | setlocale_failure = TRUE; |
664 | #endif /* USE_LOCALE_NUMERIC */ |
665 | } |
666 | |
0644c9cb |
667 | #endif /* LC_ALL */ |
02b32252 |
668 | |
0644c9cb |
669 | #endif /* !LOCALE_ENVIRON_REQUIRED */ |
5f05dabc |
670 | |
0644c9cb |
671 | #ifdef LC_ALL |
bbce6d69 |
672 | if (! setlocale(LC_ALL, "")) |
673 | setlocale_failure = TRUE; |
0644c9cb |
674 | #endif /* LC_ALL */ |
bbce6d69 |
675 | |
0644c9cb |
676 | if (!setlocale_failure) { |
36477c24 |
677 | #ifdef USE_LOCALE_CTYPE |
0644c9cb |
678 | if (! (curctype = setlocale(LC_CTYPE, ""))) |
679 | setlocale_failure = TRUE; |
36477c24 |
680 | #endif /* USE_LOCALE_CTYPE */ |
681 | #ifdef USE_LOCALE_COLLATE |
0644c9cb |
682 | if (! (curcoll = setlocale(LC_COLLATE, ""))) |
683 | setlocale_failure = TRUE; |
36477c24 |
684 | #endif /* USE_LOCALE_COLLATE */ |
685 | #ifdef USE_LOCALE_NUMERIC |
0644c9cb |
686 | if (! (curnum = setlocale(LC_NUMERIC, ""))) |
687 | setlocale_failure = TRUE; |
36477c24 |
688 | #endif /* USE_LOCALE_NUMERIC */ |
0644c9cb |
689 | } |
02b32252 |
690 | |
5f05dabc |
691 | if (setlocale_failure) { |
692 | char *p; |
693 | bool locwarn = (printwarn > 1 || |
694 | printwarn && |
76e3520e |
695 | (!(p = PerlEnv_getenv("PERL_BADLANG")) || atoi(p))); |
20cec16a |
696 | |
5f05dabc |
697 | if (locwarn) { |
698 | #ifdef LC_ALL |
699 | |
700 | PerlIO_printf(PerlIO_stderr(), |
701 | "perl: warning: Setting locale failed.\n"); |
702 | |
703 | #else /* !LC_ALL */ |
704 | |
ef7eada9 |
705 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
706 | "perl: warning: Setting locale failed for the categories:\n\t"); |
36477c24 |
707 | #ifdef USE_LOCALE_CTYPE |
bbce6d69 |
708 | if (! curctype) |
5f05dabc |
709 | PerlIO_printf(PerlIO_stderr(), "LC_CTYPE "); |
36477c24 |
710 | #endif /* USE_LOCALE_CTYPE */ |
711 | #ifdef USE_LOCALE_COLLATE |
bbce6d69 |
712 | if (! curcoll) |
5f05dabc |
713 | PerlIO_printf(PerlIO_stderr(), "LC_COLLATE "); |
36477c24 |
714 | #endif /* USE_LOCALE_COLLATE */ |
715 | #ifdef USE_LOCALE_NUMERIC |
bbce6d69 |
716 | if (! curnum) |
5f05dabc |
717 | PerlIO_printf(PerlIO_stderr(), "LC_NUMERIC "); |
36477c24 |
718 | #endif /* USE_LOCALE_NUMERIC */ |
bbce6d69 |
719 | PerlIO_printf(PerlIO_stderr(), "\n"); |
720 | |
5f05dabc |
721 | #endif /* LC_ALL */ |
722 | |
760ac839 |
723 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
724 | "perl: warning: Please check that your locale settings:\n"); |
ef7eada9 |
725 | |
3aeabbed |
726 | #ifdef __GLIBC__ |
727 | PerlIO_printf(PerlIO_stderr(), |
728 | "\tLANGUAGE = %c%s%c,\n", |
729 | language ? '"' : '(', |
730 | language ? language : "unset", |
731 | language ? '"' : ')'); |
732 | #endif |
733 | |
ef7eada9 |
734 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
735 | "\tLC_ALL = %c%s%c,\n", |
736 | lc_all ? '"' : '(', |
737 | lc_all ? lc_all : "unset", |
738 | lc_all ? '"' : ')'); |
5f05dabc |
739 | |
740 | { |
741 | char **e; |
742 | for (e = environ; *e; e++) { |
743 | if (strnEQ(*e, "LC_", 3) |
744 | && strnNE(*e, "LC_ALL=", 7) |
745 | && (p = strchr(*e, '='))) |
746 | PerlIO_printf(PerlIO_stderr(), "\t%.*s = \"%s\",\n", |
fb73857a |
747 | (int)(p - *e), *e, p + 1); |
5f05dabc |
748 | } |
749 | } |
750 | |
ef7eada9 |
751 | PerlIO_printf(PerlIO_stderr(), |
bbce6d69 |
752 | "\tLANG = %c%s%c\n", |
5f05dabc |
753 | lang ? '"' : '(', |
bbce6d69 |
754 | lang ? lang : "unset", |
755 | lang ? '"' : ')'); |
ef7eada9 |
756 | |
bbce6d69 |
757 | PerlIO_printf(PerlIO_stderr(), |
758 | " are supported and installed on your system.\n"); |
5f05dabc |
759 | } |
ef7eada9 |
760 | |
5f05dabc |
761 | #ifdef LC_ALL |
762 | |
763 | if (setlocale(LC_ALL, "C")) { |
764 | if (locwarn) |
765 | PerlIO_printf(PerlIO_stderr(), |
766 | "perl: warning: Falling back to the standard locale (\"C\").\n"); |
bbce6d69 |
767 | ok = 0; |
ef7eada9 |
768 | } |
5f05dabc |
769 | else { |
770 | if (locwarn) |
771 | PerlIO_printf(PerlIO_stderr(), |
772 | "perl: warning: Failed to fall back to the standard locale (\"C\").\n"); |
773 | ok = -1; |
774 | } |
bbce6d69 |
775 | |
5f05dabc |
776 | #else /* ! LC_ALL */ |
777 | |
778 | if (0 |
36477c24 |
779 | #ifdef USE_LOCALE_CTYPE |
5f05dabc |
780 | || !(curctype || setlocale(LC_CTYPE, "C")) |
36477c24 |
781 | #endif /* USE_LOCALE_CTYPE */ |
782 | #ifdef USE_LOCALE_COLLATE |
5f05dabc |
783 | || !(curcoll || setlocale(LC_COLLATE, "C")) |
36477c24 |
784 | #endif /* USE_LOCALE_COLLATE */ |
785 | #ifdef USE_LOCALE_NUMERIC |
5f05dabc |
786 | || !(curnum || setlocale(LC_NUMERIC, "C")) |
36477c24 |
787 | #endif /* USE_LOCALE_NUMERIC */ |
5f05dabc |
788 | ) |
789 | { |
790 | if (locwarn) |
bbce6d69 |
791 | PerlIO_printf(PerlIO_stderr(), |
5f05dabc |
792 | "perl: warning: Cannot fall back to the standard locale (\"C\").\n"); |
793 | ok = -1; |
bbce6d69 |
794 | } |
5f05dabc |
795 | |
bbce6d69 |
796 | #endif /* ! LC_ALL */ |
5f05dabc |
797 | |
798 | #ifdef USE_LOCALE_CTYPE |
799 | curctype = setlocale(LC_CTYPE, Nullch); |
800 | #endif /* USE_LOCALE_CTYPE */ |
801 | #ifdef USE_LOCALE_COLLATE |
802 | curcoll = setlocale(LC_COLLATE, Nullch); |
803 | #endif /* USE_LOCALE_COLLATE */ |
804 | #ifdef USE_LOCALE_NUMERIC |
805 | curnum = setlocale(LC_NUMERIC, Nullch); |
806 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
807 | } |
808 | |
36477c24 |
809 | #ifdef USE_LOCALE_CTYPE |
864dbfa3 |
810 | new_ctype(curctype); |
36477c24 |
811 | #endif /* USE_LOCALE_CTYPE */ |
bbce6d69 |
812 | |
36477c24 |
813 | #ifdef USE_LOCALE_COLLATE |
864dbfa3 |
814 | new_collate(curcoll); |
36477c24 |
815 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
816 | |
36477c24 |
817 | #ifdef USE_LOCALE_NUMERIC |
864dbfa3 |
818 | new_numeric(curnum); |
36477c24 |
819 | #endif /* USE_LOCALE_NUMERIC */ |
ef7eada9 |
820 | |
36477c24 |
821 | #endif /* USE_LOCALE */ |
ef7eada9 |
822 | |
f0c5b223 |
823 | return ok; |
824 | } |
825 | |
bbce6d69 |
826 | /* Backwards compatibility. */ |
827 | int |
864dbfa3 |
828 | Perl_init_i18nl14n(pTHX_ int printwarn) |
bbce6d69 |
829 | { |
864dbfa3 |
830 | return init_i18nl10n(printwarn); |
bbce6d69 |
831 | } |
ef7eada9 |
832 | |
36477c24 |
833 | #ifdef USE_LOCALE_COLLATE |
ef7eada9 |
834 | |
bbce6d69 |
835 | /* |
836 | * mem_collxfrm() is a bit like strxfrm() but with two important |
837 | * differences. First, it handles embedded NULs. Second, it allocates |
838 | * a bit more memory than needed for the transformed data itself. |
839 | * The real transformed data begins at offset sizeof(collationix). |
840 | * Please see sv_collxfrm() to see how this is used. |
841 | */ |
842 | char * |
864dbfa3 |
843 | Perl_mem_collxfrm(pTHX_ const char *s, STRLEN len, STRLEN *xlen) |
bbce6d69 |
844 | { |
845 | char *xbuf; |
76e3520e |
846 | STRLEN xAlloc, xin, xout; /* xalloc is a reserved word in VC */ |
bbce6d69 |
847 | |
848 | /* the first sizeof(collationix) bytes are used by sv_collxfrm(). */ |
849 | /* the +1 is for the terminating NUL. */ |
850 | |
3280af22 |
851 | xAlloc = sizeof(PL_collation_ix) + PL_collxfrm_base + (PL_collxfrm_mult * len) + 1; |
76e3520e |
852 | New(171, xbuf, xAlloc, char); |
bbce6d69 |
853 | if (! xbuf) |
854 | goto bad; |
855 | |
3280af22 |
856 | *(U32*)xbuf = PL_collation_ix; |
857 | xout = sizeof(PL_collation_ix); |
bbce6d69 |
858 | for (xin = 0; xin < len; ) { |
859 | SSize_t xused; |
860 | |
861 | for (;;) { |
76e3520e |
862 | xused = strxfrm(xbuf + xout, s + xin, xAlloc - xout); |
bbce6d69 |
863 | if (xused == -1) |
864 | goto bad; |
76e3520e |
865 | if (xused < xAlloc - xout) |
bbce6d69 |
866 | break; |
76e3520e |
867 | xAlloc = (2 * xAlloc) + 1; |
868 | Renew(xbuf, xAlloc, char); |
bbce6d69 |
869 | if (! xbuf) |
870 | goto bad; |
871 | } |
ef7eada9 |
872 | |
bbce6d69 |
873 | xin += strlen(s + xin) + 1; |
874 | xout += xused; |
875 | |
876 | /* Embedded NULs are understood but silently skipped |
877 | * because they make no sense in locale collation. */ |
878 | } |
ef7eada9 |
879 | |
bbce6d69 |
880 | xbuf[xout] = '\0'; |
3280af22 |
881 | *xlen = xout - sizeof(PL_collation_ix); |
bbce6d69 |
882 | return xbuf; |
883 | |
884 | bad: |
885 | Safefree(xbuf); |
886 | *xlen = 0; |
887 | return NULL; |
ef7eada9 |
888 | } |
889 | |
36477c24 |
890 | #endif /* USE_LOCALE_COLLATE */ |
bbce6d69 |
891 | |
cf93c79d |
892 | #define FBM_TABLE_OFFSET 2 /* Number of bytes between EOS and table*/ |
893 | |
894 | /* As a space optimization, we do not compile tables for strings of length |
895 | 0 and 1, and for strings of length 2 unless FBMcf_TAIL. These are |
896 | special-cased in fbm_instr(). |
897 | |
898 | If FBMcf_TAIL, the table is created as if the string has a trailing \n. */ |
899 | |
378cc40b |
900 | void |
864dbfa3 |
901 | Perl_fbm_compile(pTHX_ SV *sv, U32 flags /* not used yet */) |
378cc40b |
902 | { |
942e002e |
903 | register U8 *s; |
904 | register U8 *table; |
79072805 |
905 | register U32 i; |
0b71040e |
906 | STRLEN len; |
79072805 |
907 | I32 rarest = 0; |
908 | U32 frequency = 256; |
909 | |
cf93c79d |
910 | if (flags & FBMcf_TAIL) |
911 | sv_catpvn(sv, "\n", 1); /* Taken into account in fbm_instr() */ |
942e002e |
912 | s = (U8*)SvPV_force(sv, len); |
07f14f54 |
913 | (void)SvUPGRADE(sv, SVt_PVBM); |
cf93c79d |
914 | if (len == 0) /* TAIL might be on on a zero-length string. */ |
915 | return; |
02128f11 |
916 | if (len > 2) { |
cf93c79d |
917 | I32 mlen = len; |
918 | unsigned char *sb; |
919 | |
920 | if (mlen > 255) |
921 | mlen = 255; |
922 | Sv_Grow(sv,len + 256 + FBM_TABLE_OFFSET); |
923 | table = (unsigned char*)(SvPVX(sv) + len + FBM_TABLE_OFFSET); |
924 | s = table - 1 - FBM_TABLE_OFFSET; /* Last char */ |
02128f11 |
925 | for (i = 0; i < 256; i++) { |
cf93c79d |
926 | table[i] = mlen; |
02128f11 |
927 | } |
cf93c79d |
928 | table[-1] = flags; /* Not used yet */ |
02128f11 |
929 | i = 0; |
cf93c79d |
930 | sb = s - mlen; |
931 | while (s >= sb) { |
932 | if (table[*s] == mlen) |
933 | table[*s] = i; |
934 | s--, i++; |
935 | } |
378cc40b |
936 | } |
bbce6d69 |
937 | sv_magic(sv, Nullsv, 'B', Nullch, 0); /* deep magic */ |
79072805 |
938 | SvVALID_on(sv); |
378cc40b |
939 | |
463ee0b2 |
940 | s = (unsigned char*)(SvPVX(sv)); /* deeper magic */ |
bbce6d69 |
941 | for (i = 0; i < len; i++) { |
22c35a8c |
942 | if (PL_freq[s[i]] < frequency) { |
bbce6d69 |
943 | rarest = i; |
22c35a8c |
944 | frequency = PL_freq[s[i]]; |
378cc40b |
945 | } |
946 | } |
79072805 |
947 | BmRARE(sv) = s[rarest]; |
948 | BmPREVIOUS(sv) = rarest; |
cf93c79d |
949 | BmUSEFUL(sv) = 100; /* Initial value */ |
950 | if (flags & FBMcf_TAIL) |
951 | SvTAIL_on(sv); |
760ac839 |
952 | DEBUG_r(PerlIO_printf(Perl_debug_log, "rarest char %c at %d\n",BmRARE(sv),BmPREVIOUS(sv))); |
378cc40b |
953 | } |
954 | |
cf93c79d |
955 | /* If SvTAIL(littlestr), it has a fake '\n' at end. */ |
956 | /* If SvTAIL is actually due to \Z or \z, this gives false positives |
957 | if multiline */ |
958 | |
378cc40b |
959 | char * |
864dbfa3 |
960 | Perl_fbm_instr(pTHX_ unsigned char *big, register unsigned char *bigend, SV *littlestr, U32 flags) |
378cc40b |
961 | { |
a687059c |
962 | register unsigned char *s; |
cf93c79d |
963 | STRLEN l; |
964 | register unsigned char *little = (unsigned char *)SvPV(littlestr,l); |
965 | register STRLEN littlelen = l; |
966 | register I32 multiline = flags & FBMrf_MULTILINE; |
967 | |
968 | if (bigend - big < littlelen) { |
969 | check_tail: |
970 | if ( SvTAIL(littlestr) |
971 | && (bigend - big == littlelen - 1) |
972 | && (littlelen == 1 |
973 | || *big == *little && memEQ(big, little, littlelen - 1))) |
974 | return (char*)big; |
975 | return Nullch; |
976 | } |
378cc40b |
977 | |
cf93c79d |
978 | if (littlelen <= 2) { /* Special-cased */ |
979 | register char c; |
980 | |
981 | if (littlelen == 1) { |
982 | if (SvTAIL(littlestr) && !multiline) { /* Anchor only! */ |
983 | /* Know that bigend != big. */ |
984 | if (bigend[-1] == '\n') |
985 | return (char *)(bigend - 1); |
986 | return (char *) bigend; |
987 | } |
988 | s = big; |
989 | while (s < bigend) { |
990 | if (*s == *little) |
991 | return (char *)s; |
992 | s++; |
993 | } |
994 | if (SvTAIL(littlestr)) |
995 | return (char *) bigend; |
996 | return Nullch; |
997 | } |
998 | if (!littlelen) |
999 | return (char*)big; /* Cannot be SvTAIL! */ |
1000 | |
1001 | /* littlelen is 2 */ |
1002 | if (SvTAIL(littlestr) && !multiline) { |
1003 | if (bigend[-1] == '\n' && bigend[-2] == *little) |
1004 | return (char*)bigend - 2; |
1005 | if (bigend[-1] == *little) |
1006 | return (char*)bigend - 1; |
1007 | return Nullch; |
1008 | } |
1009 | { |
1010 | /* This should be better than FBM if c1 == c2, and almost |
1011 | as good otherwise: maybe better since we do less indirection. |
1012 | And we save a lot of memory by caching no table. */ |
1013 | register unsigned char c1 = little[0]; |
1014 | register unsigned char c2 = little[1]; |
1015 | |
1016 | s = big + 1; |
1017 | bigend--; |
1018 | if (c1 != c2) { |
1019 | while (s <= bigend) { |
1020 | if (s[0] == c2) { |
1021 | if (s[-1] == c1) |
1022 | return (char*)s - 1; |
1023 | s += 2; |
1024 | continue; |
3fe6f2dc |
1025 | } |
cf93c79d |
1026 | next_chars: |
1027 | if (s[0] == c1) { |
1028 | if (s == bigend) |
1029 | goto check_1char_anchor; |
1030 | if (s[1] == c2) |
1031 | return (char*)s; |
1032 | else { |
1033 | s++; |
1034 | goto next_chars; |
1035 | } |
1036 | } |
1037 | else |
1038 | s += 2; |
1039 | } |
1040 | goto check_1char_anchor; |
1041 | } |
1042 | /* Now c1 == c2 */ |
1043 | while (s <= bigend) { |
1044 | if (s[0] == c1) { |
1045 | if (s[-1] == c1) |
1046 | return (char*)s - 1; |
1047 | if (s == bigend) |
1048 | goto check_1char_anchor; |
1049 | if (s[1] == c1) |
1050 | return (char*)s; |
1051 | s += 3; |
02128f11 |
1052 | } |
c277df42 |
1053 | else |
cf93c79d |
1054 | s += 2; |
c277df42 |
1055 | } |
c277df42 |
1056 | } |
cf93c79d |
1057 | check_1char_anchor: /* One char and anchor! */ |
1058 | if (SvTAIL(littlestr) && (*bigend == *little)) |
1059 | return (char *)bigend; /* bigend is already decremented. */ |
1060 | return Nullch; |
d48672a2 |
1061 | } |
cf93c79d |
1062 | if (SvTAIL(littlestr) && !multiline) { /* tail anchored? */ |
bbce6d69 |
1063 | s = bigend - littlelen; |
cf93c79d |
1064 | if (s >= big |
02128f11 |
1065 | && bigend[-1] == '\n' |
cf93c79d |
1066 | && *s == *little |
1067 | /* Automatically of length > 2 */ |
1068 | && memEQ((char*)s + 1, (char*)little + 1, littlelen - 2)) |
bbce6d69 |
1069 | return (char*)s; /* how sweet it is */ |
cf93c79d |
1070 | if (s[1] == *little && memEQ((char*)s + 2,(char*)little + 1, |
1071 | littlelen - 2)) |
1072 | return (char*)s + 1; /* how sweet it is */ |
02128f11 |
1073 | return Nullch; |
1074 | } |
cf93c79d |
1075 | if (SvTYPE(littlestr) != SVt_PVBM || !SvVALID(littlestr)) { |
1076 | char *b = ninstr((char*)big,(char*)bigend, |
1077 | (char*)little, (char*)little + littlelen); |
1078 | |
1079 | if (!b && SvTAIL(littlestr)) { /* Automatically multiline! */ |
1080 | /* Chop \n from littlestr: */ |
1081 | s = bigend - littlelen + 1; |
1082 | if (*s == *little && memEQ((char*)s + 1, (char*)little + 1, |
1083 | littlelen - 2)) |
3fe6f2dc |
1084 | return (char*)s; |
cf93c79d |
1085 | return Nullch; |
a687059c |
1086 | } |
cf93c79d |
1087 | return b; |
a687059c |
1088 | } |
cf93c79d |
1089 | |
1090 | { /* Do actual FBM. */ |
1091 | register unsigned char *table = little + littlelen + FBM_TABLE_OFFSET; |
1092 | register unsigned char *oldlittle; |
1093 | |
1094 | if (littlelen > bigend - big) |
1095 | return Nullch; |
1096 | --littlelen; /* Last char found by table lookup */ |
1097 | |
1098 | s = big + littlelen; |
1099 | little += littlelen; /* last char */ |
1100 | oldlittle = little; |
1101 | if (s < bigend) { |
1102 | register I32 tmp; |
1103 | |
1104 | top2: |
1105 | /*SUPPRESS 560*/ |
1106 | if (tmp = table[*s]) { |
62b28dd9 |
1107 | #ifdef POINTERRIGOR |
cf93c79d |
1108 | if (bigend - s > tmp) { |
1109 | s += tmp; |
1110 | goto top2; |
1111 | } |
bbce6d69 |
1112 | s += tmp; |
62b28dd9 |
1113 | #else |
cf93c79d |
1114 | if ((s += tmp) < bigend) |
62b28dd9 |
1115 | goto top2; |
cf93c79d |
1116 | #endif |
1117 | goto check_end; |
1118 | } |
1119 | else { /* less expensive than calling strncmp() */ |
1120 | register unsigned char *olds = s; |
1121 | |
1122 | tmp = littlelen; |
1123 | |
1124 | while (tmp--) { |
1125 | if (*--s == *--little) |
1126 | continue; |
1127 | differ: |
1128 | s = olds + 1; /* here we pay the price for failure */ |
1129 | little = oldlittle; |
1130 | if (s < bigend) /* fake up continue to outer loop */ |
1131 | goto top2; |
1132 | goto check_end; |
1133 | } |
1134 | return (char *)s; |
a687059c |
1135 | } |
378cc40b |
1136 | } |
cf93c79d |
1137 | check_end: |
1138 | if ( s == bigend && (table[-1] & FBMcf_TAIL) |
1139 | && memEQ(bigend - littlelen, oldlittle - littlelen, littlelen) ) |
1140 | return (char*)bigend - littlelen; |
1141 | return Nullch; |
378cc40b |
1142 | } |
378cc40b |
1143 | } |
1144 | |
c277df42 |
1145 | /* start_shift, end_shift are positive quantities which give offsets |
1146 | of ends of some substring of bigstr. |
1147 | If `last' we want the last occurence. |
1148 | old_posp is the way of communication between consequent calls if |
1149 | the next call needs to find the . |
1150 | The initial *old_posp should be -1. |
cf93c79d |
1151 | |
1152 | Note that we take into account SvTAIL, so one can get extra |
1153 | optimizations if _ALL flag is set. |
c277df42 |
1154 | */ |
1155 | |
cf93c79d |
1156 | /* If SvTAIL is actually due to \Z or \z, this gives false positives |
1157 | if PL_multiline. In fact if !PL_multiline the autoritative answer |
1158 | is not supported yet. */ |
1159 | |
378cc40b |
1160 | char * |
864dbfa3 |
1161 | Perl_screaminstr(pTHX_ SV *bigstr, SV *littlestr, I32 start_shift, I32 end_shift, I32 *old_posp, I32 last) |
378cc40b |
1162 | { |
5c0ca799 |
1163 | dTHR; |
a687059c |
1164 | register unsigned char *s, *x; |
1165 | register unsigned char *big; |
79072805 |
1166 | register I32 pos; |
1167 | register I32 previous; |
1168 | register I32 first; |
a687059c |
1169 | register unsigned char *little; |
c277df42 |
1170 | register I32 stop_pos; |
a687059c |
1171 | register unsigned char *littleend; |
c277df42 |
1172 | I32 found = 0; |
378cc40b |
1173 | |
c277df42 |
1174 | if (*old_posp == -1 |
3280af22 |
1175 | ? (pos = PL_screamfirst[BmRARE(littlestr)]) < 0 |
cf93c79d |
1176 | : (((pos = *old_posp), pos += PL_screamnext[pos]) == 0)) { |
1177 | cant_find: |
1178 | if ( BmRARE(littlestr) == '\n' |
1179 | && BmPREVIOUS(littlestr) == SvCUR(littlestr) - 1) { |
1180 | little = (unsigned char *)(SvPVX(littlestr)); |
1181 | littleend = little + SvCUR(littlestr); |
1182 | first = *little++; |
1183 | goto check_tail; |
1184 | } |
378cc40b |
1185 | return Nullch; |
cf93c79d |
1186 | } |
1187 | |
463ee0b2 |
1188 | little = (unsigned char *)(SvPVX(littlestr)); |
79072805 |
1189 | littleend = little + SvCUR(littlestr); |
378cc40b |
1190 | first = *little++; |
c277df42 |
1191 | /* The value of pos we can start at: */ |
79072805 |
1192 | previous = BmPREVIOUS(littlestr); |
463ee0b2 |
1193 | big = (unsigned char *)(SvPVX(bigstr)); |
c277df42 |
1194 | /* The value of pos we can stop at: */ |
1195 | stop_pos = SvCUR(bigstr) - end_shift - (SvCUR(littlestr) - 1 - previous); |
cf93c79d |
1196 | if (previous + start_shift > stop_pos) { |
1197 | if (previous + start_shift == stop_pos + 1) /* A fake '\n'? */ |
1198 | goto check_tail; |
1199 | return Nullch; |
1200 | } |
c277df42 |
1201 | while (pos < previous + start_shift) { |
3280af22 |
1202 | if (!(pos += PL_screamnext[pos])) |
cf93c79d |
1203 | goto cant_find; |
378cc40b |
1204 | } |
de3bb511 |
1205 | #ifdef POINTERRIGOR |
bbce6d69 |
1206 | do { |
ef64f398 |
1207 | if (pos >= stop_pos) break; |
bbce6d69 |
1208 | if (big[pos-previous] != first) |
1209 | continue; |
1210 | for (x=big+pos+1-previous,s=little; s < littleend; /**/ ) { |
bbce6d69 |
1211 | if (*s++ != *x++) { |
1212 | s--; |
1213 | break; |
de3bb511 |
1214 | } |
bbce6d69 |
1215 | } |
c277df42 |
1216 | if (s == littleend) { |
1217 | *old_posp = pos; |
1218 | if (!last) return (char *)(big+pos-previous); |
1219 | found = 1; |
1220 | } |
6b88bc9c |
1221 | } while ( pos += PL_screamnext[pos] ); |
c277df42 |
1222 | return (last && found) ? (char *)(big+(*old_posp)-previous) : Nullch; |
de3bb511 |
1223 | #else /* !POINTERRIGOR */ |
1224 | big -= previous; |
bbce6d69 |
1225 | do { |
ef64f398 |
1226 | if (pos >= stop_pos) break; |
bbce6d69 |
1227 | if (big[pos] != first) |
1228 | continue; |
1229 | for (x=big+pos+1,s=little; s < littleend; /**/ ) { |
bbce6d69 |
1230 | if (*s++ != *x++) { |
1231 | s--; |
1232 | break; |
378cc40b |
1233 | } |
bbce6d69 |
1234 | } |
c277df42 |
1235 | if (s == littleend) { |
1236 | *old_posp = pos; |
1237 | if (!last) return (char *)(big+pos); |
1238 | found = 1; |
1239 | } |
3280af22 |
1240 | } while ( pos += PL_screamnext[pos] ); |
cf93c79d |
1241 | if (last && found) |
1242 | return (char *)(big+(*old_posp)); |
de3bb511 |
1243 | #endif /* POINTERRIGOR */ |
cf93c79d |
1244 | check_tail: |
1245 | if (!SvTAIL(littlestr) || (end_shift > 0)) |
1246 | return Nullch; |
1247 | /* Ignore the trailing "\n". This code is not microoptimized */ |
1248 | big = (unsigned char *)(SvPVX(bigstr) + SvCUR(bigstr)); |
1249 | stop_pos = littleend - little; /* Actual littlestr len */ |
1250 | if (stop_pos == 0) |
1251 | return (char*)big; |
1252 | big -= stop_pos; |
1253 | if (*big == first |
1254 | && ((stop_pos == 1) || memEQ(big + 1, little, stop_pos - 1))) |
1255 | return (char*)big; |
1256 | return Nullch; |
8d063cd8 |
1257 | } |
1258 | |
79072805 |
1259 | I32 |
864dbfa3 |
1260 | Perl_ibcmp(pTHX_ const char *s1, const char *s2, register I32 len) |
79072805 |
1261 | { |
bbce6d69 |
1262 | register U8 *a = (U8 *)s1; |
1263 | register U8 *b = (U8 *)s2; |
79072805 |
1264 | while (len--) { |
22c35a8c |
1265 | if (*a != *b && *a != PL_fold[*b]) |
bbce6d69 |
1266 | return 1; |
1267 | a++,b++; |
1268 | } |
1269 | return 0; |
1270 | } |
1271 | |
1272 | I32 |
864dbfa3 |
1273 | Perl_ibcmp_locale(pTHX_ const char *s1, const char *s2, register I32 len) |
bbce6d69 |
1274 | { |
1275 | register U8 *a = (U8 *)s1; |
1276 | register U8 *b = (U8 *)s2; |
1277 | while (len--) { |
22c35a8c |
1278 | if (*a != *b && *a != PL_fold_locale[*b]) |
bbce6d69 |
1279 | return 1; |
1280 | a++,b++; |
79072805 |
1281 | } |
1282 | return 0; |
1283 | } |
1284 | |
8d063cd8 |
1285 | /* copy a string to a safe spot */ |
1286 | |
1287 | char * |
864dbfa3 |
1288 | Perl_savepv(pTHX_ const char *sv) |
8d063cd8 |
1289 | { |
a687059c |
1290 | register char *newaddr; |
8d063cd8 |
1291 | |
79072805 |
1292 | New(902,newaddr,strlen(sv)+1,char); |
1293 | (void)strcpy(newaddr,sv); |
8d063cd8 |
1294 | return newaddr; |
1295 | } |
1296 | |
a687059c |
1297 | /* same thing but with a known length */ |
1298 | |
1299 | char * |
864dbfa3 |
1300 | Perl_savepvn(pTHX_ const char *sv, register I32 len) |
a687059c |
1301 | { |
1302 | register char *newaddr; |
1303 | |
1304 | New(903,newaddr,len+1,char); |
79072805 |
1305 | Copy(sv,newaddr,len,char); /* might not be null terminated */ |
a687059c |
1306 | newaddr[len] = '\0'; /* is now */ |
1307 | return newaddr; |
1308 | } |
1309 | |
cea2e8a9 |
1310 | /* the SV for Perl_form() and mess() is not kept in an arena */ |
fc36a67e |
1311 | |
76e3520e |
1312 | STATIC SV * |
cea2e8a9 |
1313 | S_mess_alloc(pTHX) |
fc36a67e |
1314 | { |
e72dc28c |
1315 | dTHR; |
fc36a67e |
1316 | SV *sv; |
1317 | XPVMG *any; |
1318 | |
e72dc28c |
1319 | if (!PL_dirty) |
1320 | return sv_2mortal(newSVpvn("",0)); |
1321 | |
0372dbb6 |
1322 | if (PL_mess_sv) |
1323 | return PL_mess_sv; |
1324 | |
fc36a67e |
1325 | /* Create as PVMG now, to avoid any upgrading later */ |
1326 | New(905, sv, 1, SV); |
1327 | Newz(905, any, 1, XPVMG); |
1328 | SvFLAGS(sv) = SVt_PVMG; |
1329 | SvANY(sv) = (void*)any; |
1330 | SvREFCNT(sv) = 1 << 30; /* practically infinite */ |
e72dc28c |
1331 | PL_mess_sv = sv; |
fc36a67e |
1332 | return sv; |
1333 | } |
1334 | |
cea2e8a9 |
1335 | #ifdef PERL_IMPLICIT_CONTEXT |
1336 | char * |
1337 | Perl_form_nocontext(const char* pat, ...) |
1338 | { |
1339 | dTHX; |
1340 | SV *sv = mess_alloc(); |
1341 | va_list args; |
1342 | va_start(args, pat); |
1343 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
1344 | va_end(args); |
1345 | return SvPVX(sv); |
1346 | } |
1347 | #endif |
1348 | |
8990e307 |
1349 | char * |
864dbfa3 |
1350 | Perl_form(pTHX_ const char* pat, ...) |
8990e307 |
1351 | { |
e72dc28c |
1352 | SV *sv = mess_alloc(); |
46fc3d4c |
1353 | va_list args; |
46fc3d4c |
1354 | va_start(args, pat); |
e72dc28c |
1355 | sv_vsetpvfn(sv, pat, strlen(pat), &args, Null(SV**), 0, Null(bool*)); |
46fc3d4c |
1356 | va_end(args); |
e72dc28c |
1357 | return SvPVX(sv); |
46fc3d4c |
1358 | } |
a687059c |
1359 | |
06bf62c7 |
1360 | SV * |
864dbfa3 |
1361 | Perl_mess(pTHX_ const char *pat, va_list *args) |
46fc3d4c |
1362 | { |
e72dc28c |
1363 | SV *sv = mess_alloc(); |
46fc3d4c |
1364 | static char dgd[] = " during global destruction.\n"; |
1365 | |
fc36a67e |
1366 | sv_vsetpvfn(sv, pat, strlen(pat), args, Null(SV**), 0, Null(bool*)); |
46fc3d4c |
1367 | if (!SvCUR(sv) || *(SvEND(sv) - 1) != '\n') { |
e858de61 |
1368 | dTHR; |
515f54a1 |
1369 | if (PL_curcop->cop_line) |
cea2e8a9 |
1370 | Perl_sv_catpvf(aTHX_ sv, " at %_ line %ld", |
515f54a1 |
1371 | GvSV(PL_curcop->cop_filegv), (long)PL_curcop->cop_line); |
1372 | if (GvIO(PL_last_in_gv) && IoLINES(GvIOp(PL_last_in_gv))) { |
1373 | bool line_mode = (RsSIMPLE(PL_rs) && |
7c1e0849 |
1374 | SvCUR(PL_rs) == 1 && *SvPVX(PL_rs) == '\n'); |
cea2e8a9 |
1375 | Perl_sv_catpvf(aTHX_ sv, ", <%s> %s %ld", |
515f54a1 |
1376 | PL_last_in_gv == PL_argvgv ? "" : GvNAME(PL_last_in_gv), |
1377 | line_mode ? "line" : "chunk", |
1378 | (long)IoLINES(GvIOp(PL_last_in_gv))); |
a687059c |
1379 | } |
515f54a1 |
1380 | sv_catpv(sv, PL_dirty ? dgd : ".\n"); |
a687059c |
1381 | } |
06bf62c7 |
1382 | return sv; |
a687059c |
1383 | } |
1384 | |
cea2e8a9 |
1385 | static OP * |
1386 | do_die(pTHX_ const char* pat, va_list *args) |
36477c24 |
1387 | { |
5dc0d613 |
1388 | dTHR; |
36477c24 |
1389 | char *message; |
3280af22 |
1390 | int was_in_eval = PL_in_eval; |
36477c24 |
1391 | HV *stash; |
1392 | GV *gv; |
1393 | CV *cv; |
06bf62c7 |
1394 | SV *msv; |
1395 | STRLEN msglen; |
36477c24 |
1396 | |
8b73bbec |
1397 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
199100c8 |
1398 | "%p: die: curstack = %p, mainstack = %p\n", |
533c011a |
1399 | thr, PL_curstack, PL_mainstack)); |
36477c24 |
1400 | |
06bf62c7 |
1401 | if (pat) { |
cea2e8a9 |
1402 | msv = mess(pat, args); |
06bf62c7 |
1403 | message = SvPV(msv,msglen); |
1404 | } |
1405 | else { |
1406 | message = Nullch; |
1407 | } |
36477c24 |
1408 | |
8b73bbec |
1409 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
199100c8 |
1410 | "%p: die: message = %s\ndiehook = %p\n", |
533c011a |
1411 | thr, message, PL_diehook)); |
3280af22 |
1412 | if (PL_diehook) { |
cea2e8a9 |
1413 | /* sv_2cv might call Perl_croak() */ |
3280af22 |
1414 | SV *olddiehook = PL_diehook; |
1738f5c4 |
1415 | ENTER; |
3280af22 |
1416 | SAVESPTR(PL_diehook); |
1417 | PL_diehook = Nullsv; |
1738f5c4 |
1418 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1419 | LEAVE; |
1420 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
1421 | dSP; |
774d564b |
1422 | SV *msg; |
1423 | |
1424 | ENTER; |
79cb57f6 |
1425 | if (message) { |
06bf62c7 |
1426 | msg = newSVpvn(message, msglen); |
4e6ea2c3 |
1427 | SvREADONLY_on(msg); |
1428 | SAVEFREESV(msg); |
1429 | } |
1430 | else { |
1431 | msg = ERRSV; |
1432 | } |
1738f5c4 |
1433 | |
e788e7d3 |
1434 | PUSHSTACKi(PERLSI_DIEHOOK); |
924508f0 |
1435 | PUSHMARK(SP); |
1738f5c4 |
1436 | XPUSHs(msg); |
1437 | PUTBACK; |
864dbfa3 |
1438 | call_sv((SV*)cv, G_DISCARD); |
d3acc0f7 |
1439 | POPSTACK; |
774d564b |
1440 | LEAVE; |
1738f5c4 |
1441 | } |
36477c24 |
1442 | } |
1443 | |
06bf62c7 |
1444 | PL_restartop = die_where(message, msglen); |
8b73bbec |
1445 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
7c06b590 |
1446 | "%p: die: restartop = %p, was_in_eval = %d, top_env = %p\n", |
533c011a |
1447 | thr, PL_restartop, was_in_eval, PL_top_env)); |
3280af22 |
1448 | if ((!PL_restartop && was_in_eval) || PL_top_env->je_prev) |
6224f72b |
1449 | JMPENV_JUMP(3); |
3280af22 |
1450 | return PL_restartop; |
36477c24 |
1451 | } |
1452 | |
cea2e8a9 |
1453 | #ifdef PERL_IMPLICIT_CONTEXT |
1454 | OP * |
1455 | Perl_die_nocontext(const char* pat, ...) |
a687059c |
1456 | { |
cea2e8a9 |
1457 | dTHX; |
1458 | OP *o; |
a687059c |
1459 | va_list args; |
cea2e8a9 |
1460 | va_start(args, pat); |
1461 | o = do_die(aTHX_ pat, &args); |
1462 | va_end(args); |
1463 | return o; |
1464 | } |
1465 | #endif |
1466 | |
1467 | OP * |
1468 | Perl_die(pTHX_ const char* pat, ...) |
1469 | { |
1470 | OP *o; |
1471 | va_list args; |
1472 | va_start(args, pat); |
1473 | o = do_die(aTHX_ pat, &args); |
1474 | va_end(args); |
1475 | return o; |
1476 | } |
1477 | |
1478 | STATIC void |
1479 | S_do_croak(pTHX_ const char* pat, va_list *args) |
1480 | { |
1481 | dTHR; |
de3bb511 |
1482 | char *message; |
748a9306 |
1483 | HV *stash; |
1484 | GV *gv; |
1485 | CV *cv; |
06bf62c7 |
1486 | SV *msv; |
1487 | STRLEN msglen; |
a687059c |
1488 | |
cea2e8a9 |
1489 | msv = mess(pat, args); |
06bf62c7 |
1490 | message = SvPV(msv,msglen); |
8b73bbec |
1491 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
3280af22 |
1492 | if (PL_diehook) { |
cea2e8a9 |
1493 | /* sv_2cv might call Perl_croak() */ |
3280af22 |
1494 | SV *olddiehook = PL_diehook; |
1738f5c4 |
1495 | ENTER; |
3280af22 |
1496 | SAVESPTR(PL_diehook); |
1497 | PL_diehook = Nullsv; |
20cec16a |
1498 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1738f5c4 |
1499 | LEAVE; |
1500 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1501 | dSP; |
774d564b |
1502 | SV *msg; |
1503 | |
1504 | ENTER; |
06bf62c7 |
1505 | msg = newSVpvn(message, msglen); |
774d564b |
1506 | SvREADONLY_on(msg); |
1507 | SAVEFREESV(msg); |
20cec16a |
1508 | |
e788e7d3 |
1509 | PUSHSTACKi(PERLSI_DIEHOOK); |
924508f0 |
1510 | PUSHMARK(SP); |
1738f5c4 |
1511 | XPUSHs(msg); |
20cec16a |
1512 | PUTBACK; |
864dbfa3 |
1513 | call_sv((SV*)cv, G_DISCARD); |
d3acc0f7 |
1514 | POPSTACK; |
774d564b |
1515 | LEAVE; |
20cec16a |
1516 | } |
748a9306 |
1517 | } |
3280af22 |
1518 | if (PL_in_eval) { |
06bf62c7 |
1519 | PL_restartop = die_where(message, msglen); |
6224f72b |
1520 | JMPENV_JUMP(3); |
a0d0e21e |
1521 | } |
d175a3f0 |
1522 | { |
1523 | #ifdef USE_SFIO |
1524 | /* SFIO can really mess with your errno */ |
1525 | int e = errno; |
1526 | #endif |
06bf62c7 |
1527 | PerlIO_write(PerlIO_stderr(), message, msglen); |
d175a3f0 |
1528 | (void)PerlIO_flush(PerlIO_stderr()); |
1529 | #ifdef USE_SFIO |
1530 | errno = e; |
1531 | #endif |
1532 | } |
f86702cc |
1533 | my_failure_exit(); |
a687059c |
1534 | } |
1535 | |
cea2e8a9 |
1536 | #ifdef PERL_IMPLICIT_CONTEXT |
8990e307 |
1537 | void |
cea2e8a9 |
1538 | Perl_croak_nocontext(const char *pat, ...) |
a687059c |
1539 | { |
cea2e8a9 |
1540 | dTHX; |
a687059c |
1541 | va_list args; |
cea2e8a9 |
1542 | va_start(args, pat); |
1543 | do_croak(pat, &args); |
1544 | /* NOTREACHED */ |
1545 | va_end(args); |
1546 | } |
1547 | #endif /* PERL_IMPLICIT_CONTEXT */ |
1548 | |
1549 | void |
1550 | Perl_croak(pTHX_ const char *pat, ...) |
1551 | { |
1552 | va_list args; |
1553 | va_start(args, pat); |
1554 | do_croak(pat, &args); |
1555 | /* NOTREACHED */ |
1556 | va_end(args); |
1557 | } |
1558 | |
1559 | STATIC void |
1560 | S_do_warn(pTHX_ const char* pat, va_list *args) |
1561 | { |
de3bb511 |
1562 | char *message; |
748a9306 |
1563 | HV *stash; |
1564 | GV *gv; |
1565 | CV *cv; |
06bf62c7 |
1566 | SV *msv; |
1567 | STRLEN msglen; |
a687059c |
1568 | |
cea2e8a9 |
1569 | msv = mess(pat, args); |
06bf62c7 |
1570 | message = SvPV(msv, msglen); |
a687059c |
1571 | |
3280af22 |
1572 | if (PL_warnhook) { |
cea2e8a9 |
1573 | /* sv_2cv might call Perl_warn() */ |
11343788 |
1574 | dTHR; |
3280af22 |
1575 | SV *oldwarnhook = PL_warnhook; |
1738f5c4 |
1576 | ENTER; |
3280af22 |
1577 | SAVESPTR(PL_warnhook); |
1578 | PL_warnhook = Nullsv; |
20cec16a |
1579 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1738f5c4 |
1580 | LEAVE; |
1581 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
20cec16a |
1582 | dSP; |
774d564b |
1583 | SV *msg; |
1584 | |
1585 | ENTER; |
06bf62c7 |
1586 | msg = newSVpvn(message, msglen); |
774d564b |
1587 | SvREADONLY_on(msg); |
1588 | SAVEFREESV(msg); |
1589 | |
e788e7d3 |
1590 | PUSHSTACKi(PERLSI_WARNHOOK); |
924508f0 |
1591 | PUSHMARK(SP); |
774d564b |
1592 | XPUSHs(msg); |
20cec16a |
1593 | PUTBACK; |
864dbfa3 |
1594 | call_sv((SV*)cv, G_DISCARD); |
d3acc0f7 |
1595 | POPSTACK; |
774d564b |
1596 | LEAVE; |
20cec16a |
1597 | return; |
1598 | } |
748a9306 |
1599 | } |
06bf62c7 |
1600 | PerlIO_write(PerlIO_stderr(), message, msglen); |
a687059c |
1601 | #ifdef LEAKTEST |
8c52afec |
1602 | DEBUG_L(*message == '!' |
1603 | ? (xstat(message[1]=='!' |
1604 | ? (message[2]=='!' ? 2 : 1) |
1605 | : 0) |
1606 | , 0) |
1607 | : 0); |
a687059c |
1608 | #endif |
20cec16a |
1609 | (void)PerlIO_flush(PerlIO_stderr()); |
a687059c |
1610 | } |
8d063cd8 |
1611 | |
cea2e8a9 |
1612 | #ifdef PERL_IMPLICIT_CONTEXT |
1613 | void |
1614 | Perl_warn_nocontext(const char *pat, ...) |
1615 | { |
1616 | dTHX; |
1617 | va_list args; |
1618 | va_start(args, pat); |
1619 | do_warn(pat, &args); |
1620 | va_end(args); |
1621 | } |
1622 | #endif /* PERL_IMPLICIT_CONTEXT */ |
1623 | |
1624 | void |
1625 | Perl_warn(pTHX_ const char *pat, ...) |
1626 | { |
1627 | va_list args; |
1628 | va_start(args, pat); |
1629 | do_warn(pat, &args); |
1630 | va_end(args); |
1631 | } |
1632 | |
599cee73 |
1633 | void |
864dbfa3 |
1634 | Perl_warner(pTHX_ U32 err, const char* pat,...) |
599cee73 |
1635 | { |
d008e5eb |
1636 | dTHR; |
599cee73 |
1637 | va_list args; |
1638 | char *message; |
1639 | HV *stash; |
1640 | GV *gv; |
1641 | CV *cv; |
06bf62c7 |
1642 | SV *msv; |
1643 | STRLEN msglen; |
599cee73 |
1644 | |
1645 | va_start(args, pat); |
06bf62c7 |
1646 | msv = mess(pat, &args); |
1647 | message = SvPV(msv, msglen); |
599cee73 |
1648 | va_end(args); |
1649 | |
1650 | if (ckDEAD(err)) { |
1651 | #ifdef USE_THREADS |
d008e5eb |
1652 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), "croak: 0x%lx %s", (unsigned long) thr, message)); |
599cee73 |
1653 | #endif /* USE_THREADS */ |
1654 | if (PL_diehook) { |
cea2e8a9 |
1655 | /* sv_2cv might call Perl_croak() */ |
599cee73 |
1656 | SV *olddiehook = PL_diehook; |
1657 | ENTER; |
1658 | SAVESPTR(PL_diehook); |
1659 | PL_diehook = Nullsv; |
1660 | cv = sv_2cv(olddiehook, &stash, &gv, 0); |
1661 | LEAVE; |
1662 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
1663 | dSP; |
1664 | SV *msg; |
1665 | |
1666 | ENTER; |
06bf62c7 |
1667 | msg = newSVpvn(message, msglen); |
599cee73 |
1668 | SvREADONLY_on(msg); |
1669 | SAVEFREESV(msg); |
1670 | |
1671 | PUSHMARK(sp); |
1672 | XPUSHs(msg); |
1673 | PUTBACK; |
864dbfa3 |
1674 | call_sv((SV*)cv, G_DISCARD); |
599cee73 |
1675 | |
1676 | LEAVE; |
1677 | } |
1678 | } |
1679 | if (PL_in_eval) { |
06bf62c7 |
1680 | PL_restartop = die_where(message, msglen); |
599cee73 |
1681 | JMPENV_JUMP(3); |
1682 | } |
06bf62c7 |
1683 | PerlIO_write(PerlIO_stderr(), message, msglen); |
599cee73 |
1684 | (void)PerlIO_flush(PerlIO_stderr()); |
1685 | my_failure_exit(); |
1686 | |
1687 | } |
1688 | else { |
1689 | if (PL_warnhook) { |
cea2e8a9 |
1690 | /* sv_2cv might call Perl_warn() */ |
599cee73 |
1691 | dTHR; |
1692 | SV *oldwarnhook = PL_warnhook; |
1693 | ENTER; |
1694 | SAVESPTR(PL_warnhook); |
1695 | PL_warnhook = Nullsv; |
1696 | cv = sv_2cv(oldwarnhook, &stash, &gv, 0); |
1697 | LEAVE; |
1698 | if (cv && !CvDEPTH(cv) && (CvROOT(cv) || CvXSUB(cv))) { |
1699 | dSP; |
1700 | SV *msg; |
1701 | |
1702 | ENTER; |
06bf62c7 |
1703 | msg = newSVpvn(message, msglen); |
599cee73 |
1704 | SvREADONLY_on(msg); |
1705 | SAVEFREESV(msg); |
1706 | |
1707 | PUSHMARK(sp); |
1708 | XPUSHs(msg); |
1709 | PUTBACK; |
864dbfa3 |
1710 | call_sv((SV*)cv, G_DISCARD); |
599cee73 |
1711 | |
1712 | LEAVE; |
1713 | return; |
1714 | } |
1715 | } |
06bf62c7 |
1716 | PerlIO_write(PerlIO_stderr(), message, msglen); |
599cee73 |
1717 | #ifdef LEAKTEST |
1718 | DEBUG_L(xstat()); |
1719 | #endif |
1720 | (void)PerlIO_flush(PerlIO_stderr()); |
1721 | } |
1722 | } |
1723 | |
a0d0e21e |
1724 | #ifndef VMS /* VMS' my_setenv() is in VMS.c */ |
f89d6eaa |
1725 | #if !defined(WIN32) && !defined(CYGWIN32) |
8d063cd8 |
1726 | void |
864dbfa3 |
1727 | Perl_my_setenv(pTHX_ char *nam, char *val) |
8d063cd8 |
1728 | { |
f2517201 |
1729 | #ifndef PERL_USE_SAFE_PUTENV |
1730 | /* most putenv()s leak, so we manipulate environ directly */ |
79072805 |
1731 | register I32 i=setenv_getix(nam); /* where does it go? */ |
8d063cd8 |
1732 | |
3280af22 |
1733 | if (environ == PL_origenviron) { /* need we copy environment? */ |
79072805 |
1734 | I32 j; |
1735 | I32 max; |
fe14fcc3 |
1736 | char **tmpenv; |
1737 | |
de3bb511 |
1738 | /*SUPPRESS 530*/ |
fe14fcc3 |
1739 | for (max = i; environ[max]; max++) ; |
f2517201 |
1740 | tmpenv = (char**)safesysmalloc((max+2) * sizeof(char*)); |
1741 | for (j=0; j<max; j++) { /* copy environment */ |
1742 | tmpenv[j] = (char*)safesysmalloc((strlen(environ[j])+1)*sizeof(char)); |
1743 | strcpy(tmpenv[j], environ[j]); |
1744 | } |
fe14fcc3 |
1745 | tmpenv[max] = Nullch; |
1746 | environ = tmpenv; /* tell exec where it is now */ |
1747 | } |
a687059c |
1748 | if (!val) { |
f2517201 |
1749 | safesysfree(environ[i]); |
a687059c |
1750 | while (environ[i]) { |
1751 | environ[i] = environ[i+1]; |
1752 | i++; |
1753 | } |
1754 | return; |
1755 | } |
8d063cd8 |
1756 | if (!environ[i]) { /* does not exist yet */ |
f2517201 |
1757 | environ = (char**)safesysrealloc(environ, (i+2) * sizeof(char*)); |
8d063cd8 |
1758 | environ[i+1] = Nullch; /* make sure it's null terminated */ |
1759 | } |
fe14fcc3 |
1760 | else |
f2517201 |
1761 | safesysfree(environ[i]); |
1762 | environ[i] = (char*)safesysmalloc((strlen(nam)+strlen(val)+2) * sizeof(char)); |
1763 | |
62b28dd9 |
1764 | #ifndef MSDOS |
a687059c |
1765 | (void)sprintf(environ[i],"%s=%s",nam,val);/* all that work just for this */ |
62b28dd9 |
1766 | #else |
1767 | /* MS-DOS requires environment variable names to be in uppercase */ |
fe14fcc3 |
1768 | /* [Tom Dinger, 27 August 1990: Well, it doesn't _require_ it, but |
1769 | * some utilities and applications may break because they only look |
1770 | * for upper case strings. (Fixed strupr() bug here.)] |
1771 | */ |
1772 | strcpy(environ[i],nam); strupr(environ[i]); |
62b28dd9 |
1773 | (void)sprintf(environ[i] + strlen(nam),"=%s",val); |
1774 | #endif /* MSDOS */ |
f2517201 |
1775 | |
1776 | #else /* PERL_USE_SAFE_PUTENV */ |
1777 | char *new_env; |
1778 | |
1779 | new_env = (char*)safesysmalloc((strlen(nam) + strlen(val) + 2) * sizeof(char)); |
1780 | #ifndef MSDOS |
1781 | (void)sprintf(new_env,"%s=%s",nam,val);/* all that work just for this */ |
1782 | #else |
1783 | strcpy(new_env,nam); strupr(new_env); |
1784 | (void)sprintf(new_env + strlen(nam),"=%s",val); |
1785 | #endif |
1786 | (void)putenv(new_env); |
1787 | #endif /* PERL_USE_SAFE_PUTENV */ |
8d063cd8 |
1788 | } |
1789 | |
3e3baf6d |
1790 | #else /* if WIN32 */ |
68dc0745 |
1791 | |
1792 | void |
864dbfa3 |
1793 | Perl_my_setenv(pTHX_ char *nam,char *val) |
68dc0745 |
1794 | { |
3e3baf6d |
1795 | |
1796 | #ifdef USE_WIN32_RTL_ENV |
1797 | |
68dc0745 |
1798 | register char *envstr; |
1799 | STRLEN namlen = strlen(nam); |
3e3baf6d |
1800 | STRLEN vallen; |
1801 | char *oldstr = environ[setenv_getix(nam)]; |
1802 | |
1803 | /* putenv() has totally broken semantics in both the Borland |
1804 | * and Microsoft CRTLs. They either store the passed pointer in |
1805 | * the environment without making a copy, or make a copy and don't |
1806 | * free it. And on top of that, they dont free() old entries that |
1807 | * are being replaced/deleted. This means the caller must |
1808 | * free any old entries somehow, or we end up with a memory |
1809 | * leak every time my_setenv() is called. One might think |
1810 | * one could directly manipulate environ[], like the UNIX code |
1811 | * above, but direct changes to environ are not allowed when |
1812 | * calling putenv(), since the RTLs maintain an internal |
1813 | * *copy* of environ[]. Bad, bad, *bad* stink. |
1814 | * GSAR 97-06-07 |
1815 | */ |
68dc0745 |
1816 | |
3e3baf6d |
1817 | if (!val) { |
1818 | if (!oldstr) |
1819 | return; |
1820 | val = ""; |
1821 | vallen = 0; |
1822 | } |
1823 | else |
1824 | vallen = strlen(val); |
f2517201 |
1825 | envstr = (char*)safesysmalloc((namlen + vallen + 3) * sizeof(char)); |
68dc0745 |
1826 | (void)sprintf(envstr,"%s=%s",nam,val); |
76e3520e |
1827 | (void)PerlEnv_putenv(envstr); |
3e3baf6d |
1828 | if (oldstr) |
f2517201 |
1829 | safesysfree(oldstr); |
3e3baf6d |
1830 | #ifdef _MSC_VER |
f2517201 |
1831 | safesysfree(envstr); /* MSVCRT leaks without this */ |
3e3baf6d |
1832 | #endif |
1833 | |
1834 | #else /* !USE_WIN32_RTL_ENV */ |
1835 | |
ac5c734f |
1836 | register char *envstr; |
1837 | STRLEN len = strlen(nam) + 3; |
1838 | if (!val) { |
1839 | val = ""; |
1840 | } |
1841 | len += strlen(val); |
1842 | New(904, envstr, len, char); |
1843 | (void)sprintf(envstr,"%s=%s",nam,val); |
1844 | (void)PerlEnv_putenv(envstr); |
1845 | Safefree(envstr); |
3e3baf6d |
1846 | |
1847 | #endif |
1848 | } |
1849 | |
1850 | #endif /* WIN32 */ |
1851 | |
1852 | I32 |
864dbfa3 |
1853 | Perl_setenv_getix(pTHX_ char *nam) |
3e3baf6d |
1854 | { |
1855 | register I32 i, len = strlen(nam); |
1856 | |
1857 | for (i = 0; environ[i]; i++) { |
1858 | if ( |
1859 | #ifdef WIN32 |
1860 | strnicmp(environ[i],nam,len) == 0 |
1861 | #else |
1862 | strnEQ(environ[i],nam,len) |
1863 | #endif |
1864 | && environ[i][len] == '=') |
1865 | break; /* strnEQ must come first to avoid */ |
1866 | } /* potential SEGV's */ |
1867 | return i; |
68dc0745 |
1868 | } |
1869 | |
a0d0e21e |
1870 | #endif /* !VMS */ |
378cc40b |
1871 | |
16d20bd9 |
1872 | #ifdef UNLINK_ALL_VERSIONS |
79072805 |
1873 | I32 |
864dbfa3 |
1874 | Perl_unlnk(pTHX_ char *f) /* unlink all versions of a file */ |
378cc40b |
1875 | { |
79072805 |
1876 | I32 i; |
378cc40b |
1877 | |
6ad3d225 |
1878 | for (i = 0; PerlLIO_unlink(f) >= 0; i++) ; |
378cc40b |
1879 | return i ? 0 : -1; |
1880 | } |
1881 | #endif |
1882 | |
85e6fe83 |
1883 | #if !defined(HAS_BCOPY) || !defined(HAS_SAFE_BCOPY) |
378cc40b |
1884 | char * |
864dbfa3 |
1885 | Perl_my_bcopy(pTHX_ register const char *from,register char *to,register I32 len) |
378cc40b |
1886 | { |
1887 | char *retval = to; |
1888 | |
7c0587c8 |
1889 | if (from - to >= 0) { |
1890 | while (len--) |
1891 | *to++ = *from++; |
1892 | } |
1893 | else { |
1894 | to += len; |
1895 | from += len; |
1896 | while (len--) |
faf8582f |
1897 | *(--to) = *(--from); |
7c0587c8 |
1898 | } |
378cc40b |
1899 | return retval; |
1900 | } |
ffed7fef |
1901 | #endif |
378cc40b |
1902 | |
fc36a67e |
1903 | #ifndef HAS_MEMSET |
1904 | void * |
864dbfa3 |
1905 | Perl_my_memset(pTHX_ register char *loc, register I32 ch, register I32 len) |
fc36a67e |
1906 | { |
1907 | char *retval = loc; |
1908 | |
1909 | while (len--) |
1910 | *loc++ = ch; |
1911 | return retval; |
1912 | } |
1913 | #endif |
1914 | |
7c0587c8 |
1915 | #if !defined(HAS_BZERO) && !defined(HAS_MEMSET) |
378cc40b |
1916 | char * |
864dbfa3 |
1917 | Perl_my_bzero(pTHX_ register char *loc, register I32 len) |
378cc40b |
1918 | { |
1919 | char *retval = loc; |
1920 | |
1921 | while (len--) |
1922 | *loc++ = 0; |
1923 | return retval; |
1924 | } |
1925 | #endif |
7c0587c8 |
1926 | |
36477c24 |
1927 | #if !defined(HAS_MEMCMP) || !defined(HAS_SANE_MEMCMP) |
79072805 |
1928 | I32 |
864dbfa3 |
1929 | Perl_my_memcmp(pTHX_ const char *s1, const char *s2, register I32 len) |
7c0587c8 |
1930 | { |
36477c24 |
1931 | register U8 *a = (U8 *)s1; |
1932 | register U8 *b = (U8 *)s2; |
79072805 |
1933 | register I32 tmp; |
7c0587c8 |
1934 | |
1935 | while (len--) { |
36477c24 |
1936 | if (tmp = *a++ - *b++) |
7c0587c8 |
1937 | return tmp; |
1938 | } |
1939 | return 0; |
1940 | } |
36477c24 |
1941 | #endif /* !HAS_MEMCMP || !HAS_SANE_MEMCMP */ |
a687059c |
1942 | |
fe14fcc3 |
1943 | #ifndef HAS_VPRINTF |
a687059c |
1944 | |
85e6fe83 |
1945 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1946 | char * |
1947 | #else |
1948 | int |
1949 | #endif |
08105a92 |
1950 | vsprintf(char *dest, const char *pat, char *args) |
a687059c |
1951 | { |
1952 | FILE fakebuf; |
1953 | |
1954 | fakebuf._ptr = dest; |
1955 | fakebuf._cnt = 32767; |
35c8bce7 |
1956 | #ifndef _IOSTRG |
1957 | #define _IOSTRG 0 |
1958 | #endif |
a687059c |
1959 | fakebuf._flag = _IOWRT|_IOSTRG; |
1960 | _doprnt(pat, args, &fakebuf); /* what a kludge */ |
1961 | (void)putc('\0', &fakebuf); |
85e6fe83 |
1962 | #ifdef USE_CHAR_VSPRINTF |
a687059c |
1963 | return(dest); |
1964 | #else |
1965 | return 0; /* perl doesn't use return value */ |
1966 | #endif |
1967 | } |
1968 | |
fe14fcc3 |
1969 | #endif /* HAS_VPRINTF */ |
a687059c |
1970 | |
1971 | #ifdef MYSWAP |
ffed7fef |
1972 | #if BYTEORDER != 0x4321 |
a687059c |
1973 | short |
864dbfa3 |
1974 | Perl_my_swap(pTHX_ short s) |
a687059c |
1975 | { |
1976 | #if (BYTEORDER & 1) == 0 |
1977 | short result; |
1978 | |
1979 | result = ((s & 255) << 8) + ((s >> 8) & 255); |
1980 | return result; |
1981 | #else |
1982 | return s; |
1983 | #endif |
1984 | } |
1985 | |
1986 | long |
864dbfa3 |
1987 | Perl_my_htonl(pTHX_ long l) |
a687059c |
1988 | { |
1989 | union { |
1990 | long result; |
ffed7fef |
1991 | char c[sizeof(long)]; |
a687059c |
1992 | } u; |
1993 | |
ffed7fef |
1994 | #if BYTEORDER == 0x1234 |
a687059c |
1995 | u.c[0] = (l >> 24) & 255; |
1996 | u.c[1] = (l >> 16) & 255; |
1997 | u.c[2] = (l >> 8) & 255; |
1998 | u.c[3] = l & 255; |
1999 | return u.result; |
2000 | #else |
ffed7fef |
2001 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
cea2e8a9 |
2002 | Perl_croak(aTHX_ "Unknown BYTEORDER\n"); |
a687059c |
2003 | #else |
79072805 |
2004 | register I32 o; |
2005 | register I32 s; |
a687059c |
2006 | |
ffed7fef |
2007 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
2008 | u.c[o & 0xf] = (l >> s) & 255; |
a687059c |
2009 | } |
2010 | return u.result; |
2011 | #endif |
2012 | #endif |
2013 | } |
2014 | |
2015 | long |
864dbfa3 |
2016 | Perl_my_ntohl(pTHX_ long l) |
a687059c |
2017 | { |
2018 | union { |
2019 | long l; |
ffed7fef |
2020 | char c[sizeof(long)]; |
a687059c |
2021 | } u; |
2022 | |
ffed7fef |
2023 | #if BYTEORDER == 0x1234 |
a687059c |
2024 | u.c[0] = (l >> 24) & 255; |
2025 | u.c[1] = (l >> 16) & 255; |
2026 | u.c[2] = (l >> 8) & 255; |
2027 | u.c[3] = l & 255; |
2028 | return u.l; |
2029 | #else |
ffed7fef |
2030 | #if ((BYTEORDER - 0x1111) & 0x444) || !(BYTEORDER & 0xf) |
cea2e8a9 |
2031 | Perl_croak(aTHX_ "Unknown BYTEORDER\n"); |
a687059c |
2032 | #else |
79072805 |
2033 | register I32 o; |
2034 | register I32 s; |
a687059c |
2035 | |
2036 | u.l = l; |
2037 | l = 0; |
ffed7fef |
2038 | for (o = BYTEORDER - 0x1111, s = 0; s < (sizeof(long)*8); o >>= 4, s += 8) { |
2039 | l |= (u.c[o & 0xf] & 255) << s; |
a687059c |
2040 | } |
2041 | return l; |
2042 | #endif |
2043 | #endif |
2044 | } |
2045 | |
ffed7fef |
2046 | #endif /* BYTEORDER != 0x4321 */ |
988174c1 |
2047 | #endif /* MYSWAP */ |
2048 | |
2049 | /* |
2050 | * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'. |
2051 | * If these functions are defined, |
2052 | * the BYTEORDER is neither 0x1234 nor 0x4321. |
2053 | * However, this is not assumed. |
2054 | * -DWS |
2055 | */ |
2056 | |
2057 | #define HTOV(name,type) \ |
2058 | type \ |
ba106d47 |
2059 | name (register type n) \ |
988174c1 |
2060 | { \ |
2061 | union { \ |
2062 | type value; \ |
2063 | char c[sizeof(type)]; \ |
2064 | } u; \ |
79072805 |
2065 | register I32 i; \ |
2066 | register I32 s; \ |
988174c1 |
2067 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
2068 | u.c[i] = (n >> s) & 0xFF; \ |
2069 | } \ |
2070 | return u.value; \ |
2071 | } |
2072 | |
2073 | #define VTOH(name,type) \ |
2074 | type \ |
ba106d47 |
2075 | name (register type n) \ |
988174c1 |
2076 | { \ |
2077 | union { \ |
2078 | type value; \ |
2079 | char c[sizeof(type)]; \ |
2080 | } u; \ |
79072805 |
2081 | register I32 i; \ |
2082 | register I32 s; \ |
988174c1 |
2083 | u.value = n; \ |
2084 | n = 0; \ |
2085 | for (i = 0, s = 0; i < sizeof(u.c); i++, s += 8) { \ |
2086 | n += (u.c[i] & 0xFF) << s; \ |
2087 | } \ |
2088 | return n; \ |
2089 | } |
2090 | |
2091 | #if defined(HAS_HTOVS) && !defined(htovs) |
2092 | HTOV(htovs,short) |
2093 | #endif |
2094 | #if defined(HAS_HTOVL) && !defined(htovl) |
2095 | HTOV(htovl,long) |
2096 | #endif |
2097 | #if defined(HAS_VTOHS) && !defined(vtohs) |
2098 | VTOH(vtohs,short) |
2099 | #endif |
2100 | #if defined(HAS_VTOHL) && !defined(vtohl) |
2101 | VTOH(vtohl,long) |
2102 | #endif |
a687059c |
2103 | |
5f05dabc |
2104 | /* VMS' my_popen() is in VMS.c, same with OS/2. */ |
092bebab |
2105 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) |
760ac839 |
2106 | PerlIO * |
864dbfa3 |
2107 | Perl_my_popen(pTHX_ char *cmd, char *mode) |
a687059c |
2108 | { |
2109 | int p[2]; |
8ac85365 |
2110 | register I32 This, that; |
79072805 |
2111 | register I32 pid; |
2112 | SV *sv; |
1738f5c4 |
2113 | I32 doexec = strNE(cmd,"-"); |
e446cec8 |
2114 | I32 did_pipes = 0; |
2115 | int pp[2]; |
a687059c |
2116 | |
45bc9206 |
2117 | PERL_FLUSHALL_FOR_CHILD; |
ddcf38b7 |
2118 | #ifdef OS2 |
2119 | if (doexec) { |
2120 | return my_syspopen(cmd,mode); |
2121 | } |
2122 | #endif |
8ac85365 |
2123 | This = (*mode == 'w'); |
2124 | that = !This; |
3280af22 |
2125 | if (doexec && PL_tainting) { |
bbce6d69 |
2126 | taint_env(); |
2127 | taint_proper("Insecure %s%s", "EXEC"); |
d48672a2 |
2128 | } |
c2267164 |
2129 | if (PerlProc_pipe(p) < 0) |
2130 | return Nullfp; |
e446cec8 |
2131 | if (doexec && PerlProc_pipe(pp) >= 0) |
2132 | did_pipes = 1; |
a687059c |
2133 | while ((pid = (doexec?vfork():fork())) < 0) { |
2134 | if (errno != EAGAIN) { |
6ad3d225 |
2135 | PerlLIO_close(p[This]); |
e446cec8 |
2136 | if (did_pipes) { |
2137 | PerlLIO_close(pp[0]); |
2138 | PerlLIO_close(pp[1]); |
2139 | } |
a687059c |
2140 | if (!doexec) |
cea2e8a9 |
2141 | Perl_croak(aTHX_ "Can't fork"); |
a687059c |
2142 | return Nullfp; |
2143 | } |
2144 | sleep(5); |
2145 | } |
2146 | if (pid == 0) { |
79072805 |
2147 | GV* tmpgv; |
2148 | |
30ac6d9b |
2149 | #undef THIS |
2150 | #undef THAT |
a687059c |
2151 | #define THIS that |
8ac85365 |
2152 | #define THAT This |
6ad3d225 |
2153 | PerlLIO_close(p[THAT]); |
e446cec8 |
2154 | if (did_pipes) { |
2155 | PerlLIO_close(pp[0]); |
2156 | #if defined(HAS_FCNTL) && defined(F_SETFD) |
2157 | fcntl(pp[1], F_SETFD, FD_CLOEXEC); |
2158 | #endif |
2159 | } |
a687059c |
2160 | if (p[THIS] != (*mode == 'r')) { |
6ad3d225 |
2161 | PerlLIO_dup2(p[THIS], *mode == 'r'); |
2162 | PerlLIO_close(p[THIS]); |
a687059c |
2163 | } |
4435c477 |
2164 | #ifndef OS2 |
a687059c |
2165 | if (doexec) { |
a0d0e21e |
2166 | #if !defined(HAS_FCNTL) || !defined(F_SETFD) |
ae986130 |
2167 | int fd; |
2168 | |
2169 | #ifndef NOFILE |
2170 | #define NOFILE 20 |
2171 | #endif |
6b88bc9c |
2172 | for (fd = PL_maxsysfd + 1; fd < NOFILE; fd++) |
e446cec8 |
2173 | if (fd != pp[1]) |
2174 | PerlLIO_close(fd); |
ae986130 |
2175 | #endif |
e446cec8 |
2176 | do_exec3(cmd,pp[1],did_pipes); /* may or may not use the shell */ |
6ad3d225 |
2177 | PerlProc__exit(1); |
a687059c |
2178 | } |
4435c477 |
2179 | #endif /* defined OS2 */ |
de3bb511 |
2180 | /*SUPPRESS 560*/ |
85e6fe83 |
2181 | if (tmpgv = gv_fetchpv("$",TRUE, SVt_PV)) |
1e422769 |
2182 | sv_setiv(GvSV(tmpgv), (IV)getpid()); |
3280af22 |
2183 | PL_forkprocess = 0; |
2184 | hv_clear(PL_pidstatus); /* we have no children */ |
a687059c |
2185 | return Nullfp; |
2186 | #undef THIS |
2187 | #undef THAT |
2188 | } |
62b28dd9 |
2189 | do_execfree(); /* free any memory malloced by child on vfork */ |
6ad3d225 |
2190 | PerlLIO_close(p[that]); |
e446cec8 |
2191 | if (did_pipes) |
2192 | PerlLIO_close(pp[1]); |
8ac85365 |
2193 | if (p[that] < p[This]) { |
6ad3d225 |
2194 | PerlLIO_dup2(p[This], p[that]); |
2195 | PerlLIO_close(p[This]); |
8ac85365 |
2196 | p[This] = p[that]; |
62b28dd9 |
2197 | } |
3280af22 |
2198 | sv = *av_fetch(PL_fdpid,p[This],TRUE); |
a0d0e21e |
2199 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
2200 | SvIVX(sv) = pid; |
3280af22 |
2201 | PL_forkprocess = pid; |
e446cec8 |
2202 | if (did_pipes && pid > 0) { |
2203 | int errkid; |
2204 | int n = 0, n1; |
2205 | |
2206 | while (n < sizeof(int)) { |
2207 | n1 = PerlLIO_read(pp[0], |
2208 | (void*)(((char*)&errkid)+n), |
2209 | (sizeof(int)) - n); |
2210 | if (n1 <= 0) |
2211 | break; |
2212 | n += n1; |
2213 | } |
2214 | if (n) { /* Error */ |
2215 | if (n != sizeof(int)) |
cea2e8a9 |
2216 | Perl_croak(aTHX_ "panic: kid popen errno read"); |
e446cec8 |
2217 | PerlLIO_close(pp[0]); |
2218 | errno = errkid; /* Propagate errno from kid */ |
2219 | return Nullfp; |
2220 | } |
2221 | } |
2222 | if (did_pipes) |
2223 | PerlLIO_close(pp[0]); |
8ac85365 |
2224 | return PerlIO_fdopen(p[This], mode); |
a687059c |
2225 | } |
7c0587c8 |
2226 | #else |
55497cff |
2227 | #if defined(atarist) || defined(DJGPP) |
7c0587c8 |
2228 | FILE *popen(); |
760ac839 |
2229 | PerlIO * |
864dbfa3 |
2230 | Perl_my_popen(pTHX_ char *cmd, char *mode) |
7c0587c8 |
2231 | { |
760ac839 |
2232 | /* Needs work for PerlIO ! */ |
55497cff |
2233 | /* used 0 for 2nd parameter to PerlIO-exportFILE; apparently not used */ |
45bc9206 |
2234 | PERL_FLUSHALL_FOR_CHILD; |
55497cff |
2235 | return popen(PerlIO_exportFILE(cmd, 0), mode); |
7c0587c8 |
2236 | } |
2237 | #endif |
2238 | |
2239 | #endif /* !DOSISH */ |
a687059c |
2240 | |
748a9306 |
2241 | #ifdef DUMP_FDS |
35ff7856 |
2242 | void |
864dbfa3 |
2243 | Perl_dump_fds(pTHX_ char *s) |
ae986130 |
2244 | { |
2245 | int fd; |
2246 | struct stat tmpstatbuf; |
2247 | |
760ac839 |
2248 | PerlIO_printf(PerlIO_stderr(),"%s", s); |
ae986130 |
2249 | for (fd = 0; fd < 32; fd++) { |
6ad3d225 |
2250 | if (PerlLIO_fstat(fd,&tmpstatbuf) >= 0) |
760ac839 |
2251 | PerlIO_printf(PerlIO_stderr()," %d",fd); |
ae986130 |
2252 | } |
760ac839 |
2253 | PerlIO_printf(PerlIO_stderr(),"\n"); |
ae986130 |
2254 | } |
35ff7856 |
2255 | #endif /* DUMP_FDS */ |
ae986130 |
2256 | |
fe14fcc3 |
2257 | #ifndef HAS_DUP2 |
fec02dd3 |
2258 | int |
ba106d47 |
2259 | dup2(int oldfd, int newfd) |
a687059c |
2260 | { |
a0d0e21e |
2261 | #if defined(HAS_FCNTL) && defined(F_DUPFD) |
fec02dd3 |
2262 | if (oldfd == newfd) |
2263 | return oldfd; |
6ad3d225 |
2264 | PerlLIO_close(newfd); |
fec02dd3 |
2265 | return fcntl(oldfd, F_DUPFD, newfd); |
62b28dd9 |
2266 | #else |
fc36a67e |
2267 | #define DUP2_MAX_FDS 256 |
2268 | int fdtmp[DUP2_MAX_FDS]; |
79072805 |
2269 | I32 fdx = 0; |
ae986130 |
2270 | int fd; |
2271 | |
fe14fcc3 |
2272 | if (oldfd == newfd) |
fec02dd3 |
2273 | return oldfd; |
6ad3d225 |
2274 | PerlLIO_close(newfd); |
fc36a67e |
2275 | /* good enough for low fd's... */ |
6ad3d225 |
2276 | while ((fd = PerlLIO_dup(oldfd)) != newfd && fd >= 0) { |
fc36a67e |
2277 | if (fdx >= DUP2_MAX_FDS) { |
6ad3d225 |
2278 | PerlLIO_close(fd); |
fc36a67e |
2279 | fd = -1; |
2280 | break; |
2281 | } |
ae986130 |
2282 | fdtmp[fdx++] = fd; |
fc36a67e |
2283 | } |
ae986130 |
2284 | while (fdx > 0) |
6ad3d225 |
2285 | PerlLIO_close(fdtmp[--fdx]); |
fec02dd3 |
2286 | return fd; |
62b28dd9 |
2287 | #endif |
a687059c |
2288 | } |
2289 | #endif |
2290 | |
ff68c719 |
2291 | |
2292 | #ifdef HAS_SIGACTION |
2293 | |
2294 | Sighandler_t |
864dbfa3 |
2295 | Perl_rsignal(pTHX_ int signo, Sighandler_t handler) |
ff68c719 |
2296 | { |
2297 | struct sigaction act, oact; |
2298 | |
2299 | act.sa_handler = handler; |
2300 | sigemptyset(&act.sa_mask); |
2301 | act.sa_flags = 0; |
2302 | #ifdef SA_RESTART |
2303 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
2304 | #endif |
85264bed |
2305 | #ifdef SA_NOCLDWAIT |
2306 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) |
2307 | act.sa_flags |= SA_NOCLDWAIT; |
2308 | #endif |
ff68c719 |
2309 | if (sigaction(signo, &act, &oact) == -1) |
36477c24 |
2310 | return SIG_ERR; |
ff68c719 |
2311 | else |
36477c24 |
2312 | return oact.sa_handler; |
ff68c719 |
2313 | } |
2314 | |
2315 | Sighandler_t |
864dbfa3 |
2316 | Perl_rsignal_state(pTHX_ int signo) |
ff68c719 |
2317 | { |
2318 | struct sigaction oact; |
2319 | |
2320 | if (sigaction(signo, (struct sigaction *)NULL, &oact) == -1) |
2321 | return SIG_ERR; |
2322 | else |
2323 | return oact.sa_handler; |
2324 | } |
2325 | |
2326 | int |
864dbfa3 |
2327 | Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 |
2328 | { |
2329 | struct sigaction act; |
2330 | |
2331 | act.sa_handler = handler; |
2332 | sigemptyset(&act.sa_mask); |
2333 | act.sa_flags = 0; |
2334 | #ifdef SA_RESTART |
2335 | act.sa_flags |= SA_RESTART; /* SVR4, 4.3+BSD */ |
2336 | #endif |
85264bed |
2337 | #ifdef SA_NOCLDWAIT |
2338 | if (signo == SIGCHLD && handler == (Sighandler_t)SIG_IGN) |
2339 | act.sa_flags |= SA_NOCLDWAIT; |
2340 | #endif |
ff68c719 |
2341 | return sigaction(signo, &act, save); |
2342 | } |
2343 | |
2344 | int |
864dbfa3 |
2345 | Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save) |
ff68c719 |
2346 | { |
2347 | return sigaction(signo, save, (struct sigaction *)NULL); |
2348 | } |
2349 | |
2350 | #else /* !HAS_SIGACTION */ |
2351 | |
2352 | Sighandler_t |
864dbfa3 |
2353 | Perl_rsignal(pTHX_ int signo, Sighandler_t handler) |
ff68c719 |
2354 | { |
6ad3d225 |
2355 | return PerlProc_signal(signo, handler); |
ff68c719 |
2356 | } |
2357 | |
2358 | static int sig_trapped; |
2359 | |
2360 | static |
2361 | Signal_t |
4e35701f |
2362 | sig_trap(int signo) |
ff68c719 |
2363 | { |
2364 | sig_trapped++; |
2365 | } |
2366 | |
2367 | Sighandler_t |
864dbfa3 |
2368 | Perl_rsignal_state(pTHX_ int signo) |
ff68c719 |
2369 | { |
2370 | Sighandler_t oldsig; |
2371 | |
2372 | sig_trapped = 0; |
6ad3d225 |
2373 | oldsig = PerlProc_signal(signo, sig_trap); |
2374 | PerlProc_signal(signo, oldsig); |
ff68c719 |
2375 | if (sig_trapped) |
6ad3d225 |
2376 | PerlProc_kill(getpid(), signo); |
ff68c719 |
2377 | return oldsig; |
2378 | } |
2379 | |
2380 | int |
864dbfa3 |
2381 | Perl_rsignal_save(pTHX_ int signo, Sighandler_t handler, Sigsave_t *save) |
ff68c719 |
2382 | { |
6ad3d225 |
2383 | *save = PerlProc_signal(signo, handler); |
ff68c719 |
2384 | return (*save == SIG_ERR) ? -1 : 0; |
2385 | } |
2386 | |
2387 | int |
864dbfa3 |
2388 | Perl_rsignal_restore(pTHX_ int signo, Sigsave_t *save) |
ff68c719 |
2389 | { |
6ad3d225 |
2390 | return (PerlProc_signal(signo, *save) == SIG_ERR) ? -1 : 0; |
ff68c719 |
2391 | } |
2392 | |
2393 | #endif /* !HAS_SIGACTION */ |
2394 | |
5f05dabc |
2395 | /* VMS' my_pclose() is in VMS.c; same with OS/2 */ |
092bebab |
2396 | #if (!defined(DOSISH) || defined(HAS_FORK) || defined(AMIGAOS)) && !defined(VMS) && !defined(__OPEN_VM) |
79072805 |
2397 | I32 |
864dbfa3 |
2398 | Perl_my_pclose(pTHX_ PerlIO *ptr) |
a687059c |
2399 | { |
ff68c719 |
2400 | Sigsave_t hstat, istat, qstat; |
a687059c |
2401 | int status; |
a0d0e21e |
2402 | SV **svp; |
20188a90 |
2403 | int pid; |
1d3434b8 |
2404 | int pid2; |
03136e13 |
2405 | bool close_failed; |
2406 | int saved_errno; |
2407 | #ifdef VMS |
2408 | int saved_vaxc_errno; |
2409 | #endif |
22fae026 |
2410 | #ifdef WIN32 |
2411 | int saved_win32_errno; |
2412 | #endif |
a687059c |
2413 | |
3280af22 |
2414 | svp = av_fetch(PL_fdpid,PerlIO_fileno(ptr),TRUE); |
748a9306 |
2415 | pid = (int)SvIVX(*svp); |
a0d0e21e |
2416 | SvREFCNT_dec(*svp); |
3280af22 |
2417 | *svp = &PL_sv_undef; |
ddcf38b7 |
2418 | #ifdef OS2 |
2419 | if (pid == -1) { /* Opened by popen. */ |
2420 | return my_syspclose(ptr); |
2421 | } |
2422 | #endif |
03136e13 |
2423 | if ((close_failed = (PerlIO_close(ptr) == EOF))) { |
2424 | saved_errno = errno; |
2425 | #ifdef VMS |
2426 | saved_vaxc_errno = vaxc$errno; |
2427 | #endif |
22fae026 |
2428 | #ifdef WIN32 |
2429 | saved_win32_errno = GetLastError(); |
2430 | #endif |
03136e13 |
2431 | } |
7c0587c8 |
2432 | #ifdef UTS |
6ad3d225 |
2433 | if(PerlProc_kill(pid, 0) < 0) { return(pid); } /* HOM 12/23/91 */ |
7c0587c8 |
2434 | #endif |
ff68c719 |
2435 | rsignal_save(SIGHUP, SIG_IGN, &hstat); |
2436 | rsignal_save(SIGINT, SIG_IGN, &istat); |
2437 | rsignal_save(SIGQUIT, SIG_IGN, &qstat); |
748a9306 |
2438 | do { |
1d3434b8 |
2439 | pid2 = wait4pid(pid, &status, 0); |
2440 | } while (pid2 == -1 && errno == EINTR); |
ff68c719 |
2441 | rsignal_restore(SIGHUP, &hstat); |
2442 | rsignal_restore(SIGINT, &istat); |
2443 | rsignal_restore(SIGQUIT, &qstat); |
03136e13 |
2444 | if (close_failed) { |
2445 | SETERRNO(saved_errno, saved_vaxc_errno); |
2446 | return -1; |
2447 | } |
1d3434b8 |
2448 | return(pid2 < 0 ? pid2 : status == 0 ? 0 : (errno = 0, status)); |
20188a90 |
2449 | } |
4633a7c4 |
2450 | #endif /* !DOSISH */ |
2451 | |
8736538c |
2452 | #if !defined(DOSISH) || defined(OS2) || defined(WIN32) || defined(CYGWIN32) |
79072805 |
2453 | I32 |
864dbfa3 |
2454 | Perl_wait4pid(pTHX_ int pid, int *statusp, int flags) |
20188a90 |
2455 | { |
79072805 |
2456 | SV *sv; |
2457 | SV** svp; |
fc36a67e |
2458 | char spid[TYPE_CHARS(int)]; |
20188a90 |
2459 | |
2460 | if (!pid) |
2461 | return -1; |
20188a90 |
2462 | if (pid > 0) { |
2463 | sprintf(spid, "%d", pid); |
3280af22 |
2464 | svp = hv_fetch(PL_pidstatus,spid,strlen(spid),FALSE); |
2465 | if (svp && *svp != &PL_sv_undef) { |
463ee0b2 |
2466 | *statusp = SvIVX(*svp); |
3280af22 |
2467 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
2468 | return pid; |
2469 | } |
2470 | } |
2471 | else { |
79072805 |
2472 | HE *entry; |
20188a90 |
2473 | |
3280af22 |
2474 | hv_iterinit(PL_pidstatus); |
2475 | if (entry = hv_iternext(PL_pidstatus)) { |
a0d0e21e |
2476 | pid = atoi(hv_iterkey(entry,(I32*)statusp)); |
3280af22 |
2477 | sv = hv_iterval(PL_pidstatus,entry); |
463ee0b2 |
2478 | *statusp = SvIVX(sv); |
20188a90 |
2479 | sprintf(spid, "%d", pid); |
3280af22 |
2480 | (void)hv_delete(PL_pidstatus,spid,strlen(spid),G_DISCARD); |
20188a90 |
2481 | return pid; |
2482 | } |
2483 | } |
79072805 |
2484 | #ifdef HAS_WAITPID |
367f3c24 |
2485 | # ifdef HAS_WAITPID_RUNTIME |
2486 | if (!HAS_WAITPID_RUNTIME) |
2487 | goto hard_way; |
2488 | # endif |
f55ee38a |
2489 | return PerlProc_waitpid(pid,statusp,flags); |
367f3c24 |
2490 | #endif |
2491 | #if !defined(HAS_WAITPID) && defined(HAS_WAIT4) |
a0d0e21e |
2492 | return wait4((pid==-1)?0:pid,statusp,flags,Null(struct rusage *)); |
367f3c24 |
2493 | #endif |
2494 | #if !defined(HAS_WAITPID) && !defined(HAS_WAIT4) || defined(HAS_WAITPID_RUNTIME) |
2495 | hard_way: |
a0d0e21e |
2496 | { |
2497 | I32 result; |
2498 | if (flags) |
cea2e8a9 |
2499 | Perl_croak(aTHX_ "Can't do waitpid with flags"); |
a0d0e21e |
2500 | else { |
76e3520e |
2501 | while ((result = PerlProc_wait(statusp)) != pid && pid > 0 && result >= 0) |
a0d0e21e |
2502 | pidgone(result,*statusp); |
2503 | if (result < 0) |
2504 | *statusp = -1; |
2505 | } |
2506 | return result; |
a687059c |
2507 | } |
2508 | #endif |
a687059c |
2509 | } |
2d7a9237 |
2510 | #endif /* !DOSISH || OS2 || WIN32 */ |
a687059c |
2511 | |
7c0587c8 |
2512 | void |
de3bb511 |
2513 | /*SUPPRESS 590*/ |
864dbfa3 |
2514 | Perl_pidgone(pTHX_ int pid, int status) |
a687059c |
2515 | { |
79072805 |
2516 | register SV *sv; |
fc36a67e |
2517 | char spid[TYPE_CHARS(int)]; |
a687059c |
2518 | |
20188a90 |
2519 | sprintf(spid, "%d", pid); |
3280af22 |
2520 | sv = *hv_fetch(PL_pidstatus,spid,strlen(spid),TRUE); |
a0d0e21e |
2521 | (void)SvUPGRADE(sv,SVt_IV); |
463ee0b2 |
2522 | SvIVX(sv) = status; |
20188a90 |
2523 | return; |
a687059c |
2524 | } |
2525 | |
55497cff |
2526 | #if defined(atarist) || defined(OS2) || defined(DJGPP) |
7c0587c8 |
2527 | int pclose(); |
ddcf38b7 |
2528 | #ifdef HAS_FORK |
2529 | int /* Cannot prototype with I32 |
2530 | in os2ish.h. */ |
ba106d47 |
2531 | my_syspclose(PerlIO *ptr) |
ddcf38b7 |
2532 | #else |
79072805 |
2533 | I32 |
864dbfa3 |
2534 | Perl_my_pclose(pTHX_ PerlIO *ptr) |
ddcf38b7 |
2535 | #endif |
a687059c |
2536 | { |
760ac839 |
2537 | /* Needs work for PerlIO ! */ |
2538 | FILE *f = PerlIO_findFILE(ptr); |
2539 | I32 result = pclose(f); |
2540 | PerlIO_releaseFILE(ptr,f); |
2541 | return result; |
a687059c |
2542 | } |
7c0587c8 |
2543 | #endif |
9f68db38 |
2544 | |
2545 | void |
864dbfa3 |
2546 | Perl_repeatcpy(pTHX_ register char *to, register const char *from, I32 len, register I32 count) |
9f68db38 |
2547 | { |
79072805 |
2548 | register I32 todo; |
08105a92 |
2549 | register const char *frombase = from; |
9f68db38 |
2550 | |
2551 | if (len == 1) { |
08105a92 |
2552 | register const char c = *from; |
9f68db38 |
2553 | while (count-- > 0) |
5926133d |
2554 | *to++ = c; |
9f68db38 |
2555 | return; |
2556 | } |
2557 | while (count-- > 0) { |
2558 | for (todo = len; todo > 0; todo--) { |
2559 | *to++ = *from++; |
2560 | } |
2561 | from = frombase; |
2562 | } |
2563 | } |
0f85fab0 |
2564 | |
463ee0b2 |
2565 | U32 |
864dbfa3 |
2566 | Perl_cast_ulong(pTHX_ double f) |
0f85fab0 |
2567 | { |
2568 | long along; |
2569 | |
27e2fb84 |
2570 | #if CASTFLAGS & 2 |
34de22dd |
2571 | # define BIGDOUBLE 2147483648.0 |
2572 | if (f >= BIGDOUBLE) |
2573 | return (unsigned long)(f-(long)(f/BIGDOUBLE)*BIGDOUBLE)|0x80000000; |
2574 | #endif |
0f85fab0 |
2575 | if (f >= 0.0) |
2576 | return (unsigned long)f; |
2577 | along = (long)f; |
2578 | return (unsigned long)along; |
2579 | } |
ed6116ce |
2580 | # undef BIGDOUBLE |
5d94fbed |
2581 | |
5d94fbed |
2582 | /* Unfortunately, on some systems the cast_uv() function doesn't |
2583 | work with the system-supplied definition of ULONG_MAX. The |
2584 | comparison (f >= ULONG_MAX) always comes out true. It must be a |
2585 | problem with the compiler constant folding. |
2586 | |
2587 | In any case, this workaround should be fine on any two's complement |
2588 | system. If it's not, supply a '-DMY_ULONG_MAX=whatever' in your |
2589 | ccflags. |
2590 | --Andy Dougherty <doughera@lafcol.lafayette.edu> |
2591 | */ |
1eb770ff |
2592 | |
2593 | /* Code modified to prefer proper named type ranges, I32, IV, or UV, instead |
2594 | of LONG_(MIN/MAX). |
2595 | -- Kenneth Albanowski <kjahds@kjahds.com> |
2596 | */ |
2597 | |
20cec16a |
2598 | #ifndef MY_UV_MAX |
2599 | # define MY_UV_MAX ((UV)IV_MAX * (UV)2 + (UV)1) |
5d94fbed |
2600 | #endif |
2601 | |
ed6116ce |
2602 | I32 |
864dbfa3 |
2603 | Perl_cast_i32(pTHX_ double f) |
ed6116ce |
2604 | { |
20cec16a |
2605 | if (f >= I32_MAX) |
2606 | return (I32) I32_MAX; |
2607 | if (f <= I32_MIN) |
2608 | return (I32) I32_MIN; |
ed6116ce |
2609 | return (I32) f; |
2610 | } |
a0d0e21e |
2611 | |
2612 | IV |
864dbfa3 |
2613 | Perl_cast_iv(pTHX_ double f) |
a0d0e21e |
2614 | { |
25da4f38 |
2615 | if (f >= IV_MAX) { |
2616 | UV uv; |
2617 | |
2618 | if (f >= (double)UV_MAX) |
2619 | return (IV) UV_MAX; |
2620 | uv = (UV) f; |
2621 | return (IV)uv; |
2622 | } |
20cec16a |
2623 | if (f <= IV_MIN) |
2624 | return (IV) IV_MIN; |
a0d0e21e |
2625 | return (IV) f; |
2626 | } |
5d94fbed |
2627 | |
2628 | UV |
864dbfa3 |
2629 | Perl_cast_uv(pTHX_ double f) |
5d94fbed |
2630 | { |
20cec16a |
2631 | if (f >= MY_UV_MAX) |
2632 | return (UV) MY_UV_MAX; |
25da4f38 |
2633 | if (f < 0) { |
2634 | IV iv; |
2635 | |
2636 | if (f < IV_MIN) |
2637 | return (UV)IV_MIN; |
2638 | iv = (IV) f; |
2639 | return (UV) iv; |
2640 | } |
5d94fbed |
2641 | return (UV) f; |
2642 | } |
2643 | |
fe14fcc3 |
2644 | #ifndef HAS_RENAME |
79072805 |
2645 | I32 |
864dbfa3 |
2646 | Perl_same_dirent(pTHX_ char *a, char *b) |
62b28dd9 |
2647 | { |
93a17b20 |
2648 | char *fa = strrchr(a,'/'); |
2649 | char *fb = strrchr(b,'/'); |
62b28dd9 |
2650 | struct stat tmpstatbuf1; |
2651 | struct stat tmpstatbuf2; |
46fc3d4c |
2652 | SV *tmpsv = sv_newmortal(); |
62b28dd9 |
2653 | |
2654 | if (fa) |
2655 | fa++; |
2656 | else |
2657 | fa = a; |
2658 | if (fb) |
2659 | fb++; |
2660 | else |
2661 | fb = b; |
2662 | if (strNE(a,b)) |
2663 | return FALSE; |
2664 | if (fa == a) |
46fc3d4c |
2665 | sv_setpv(tmpsv, "."); |
62b28dd9 |
2666 | else |
46fc3d4c |
2667 | sv_setpvn(tmpsv, a, fa - a); |
c6ed36e1 |
2668 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf1) < 0) |
62b28dd9 |
2669 | return FALSE; |
2670 | if (fb == b) |
46fc3d4c |
2671 | sv_setpv(tmpsv, "."); |
62b28dd9 |
2672 | else |
46fc3d4c |
2673 | sv_setpvn(tmpsv, b, fb - b); |
c6ed36e1 |
2674 | if (PerlLIO_stat(SvPVX(tmpsv), &tmpstatbuf2) < 0) |
62b28dd9 |
2675 | return FALSE; |
2676 | return tmpstatbuf1.st_dev == tmpstatbuf2.st_dev && |
2677 | tmpstatbuf1.st_ino == tmpstatbuf2.st_ino; |
2678 | } |
fe14fcc3 |
2679 | #endif /* !HAS_RENAME */ |
2680 | |
55497cff |
2681 | UV |
864dbfa3 |
2682 | Perl_scan_bin(pTHX_ char *start, I32 len, I32 *retlen) |
4f19785b |
2683 | { |
2684 | register char *s = start; |
2685 | register UV retval = 0; |
2686 | bool overflowed = FALSE; |
2687 | while (len && *s >= '0' && *s <= '1') { |
2688 | register UV n = retval << 1; |
2689 | if (!overflowed && (n >> 1) != retval) { |
cea2e8a9 |
2690 | Perl_warn(aTHX_ "Integer overflow in binary number"); |
4f19785b |
2691 | overflowed = TRUE; |
2692 | } |
2693 | retval = n | (*s++ - '0'); |
2694 | len--; |
2695 | } |
6529e8bd |
2696 | if (len && (*s >= '2' && *s <= '9')) { |
4f19785b |
2697 | dTHR; |
2698 | if (ckWARN(WARN_UNSAFE)) |
cea2e8a9 |
2699 | Perl_warner(aTHX_ WARN_UNSAFE, "Illegal binary digit '%c' ignored", *s); |
4f19785b |
2700 | } |
2701 | *retlen = s - start; |
2702 | return retval; |
2703 | } |
2704 | UV |
864dbfa3 |
2705 | Perl_scan_oct(pTHX_ char *start, I32 len, I32 *retlen) |
fe14fcc3 |
2706 | { |
2707 | register char *s = start; |
55497cff |
2708 | register UV retval = 0; |
2709 | bool overflowed = FALSE; |
fe14fcc3 |
2710 | |
748a9306 |
2711 | while (len && *s >= '0' && *s <= '7') { |
55497cff |
2712 | register UV n = retval << 3; |
2713 | if (!overflowed && (n >> 3) != retval) { |
cea2e8a9 |
2714 | Perl_warn(aTHX_ "Integer overflow in octal number"); |
55497cff |
2715 | overflowed = TRUE; |
2716 | } |
2717 | retval = n | (*s++ - '0'); |
748a9306 |
2718 | len--; |
fe14fcc3 |
2719 | } |
d008e5eb |
2720 | if (len && (*s == '8' || *s == '9')) { |
2721 | dTHR; |
2722 | if (ckWARN(WARN_OCTAL)) |
cea2e8a9 |
2723 | Perl_warner(aTHX_ WARN_OCTAL, "Illegal octal digit '%c' ignored", *s); |
d008e5eb |
2724 | } |
fe14fcc3 |
2725 | *retlen = s - start; |
2726 | return retval; |
2727 | } |
2728 | |
71be2cbc |
2729 | UV |
864dbfa3 |
2730 | Perl_scan_hex(pTHX_ char *start, I32 len, I32 *retlen) |
fe14fcc3 |
2731 | { |
2732 | register char *s = start; |
55497cff |
2733 | register UV retval = 0; |
2734 | bool overflowed = FALSE; |
6ff81951 |
2735 | char *tmp = s; |
a0ed51b3 |
2736 | register UV n; |
fe14fcc3 |
2737 | |
a0ed51b3 |
2738 | while (len-- && *s) { |
2739 | tmp = strchr((char *) PL_hexdigit, *s++); |
2740 | if (!tmp) { |
e3fdf988 |
2741 | if (*(s-1) == '_' || (*(s-1) == 'x' && retval == 0)) |
a0ed51b3 |
2742 | continue; |
2743 | else { |
d008e5eb |
2744 | dTHR; |
a0ed51b3 |
2745 | --s; |
599cee73 |
2746 | if (ckWARN(WARN_UNSAFE)) |
cea2e8a9 |
2747 | Perl_warner(aTHX_ WARN_UNSAFE,"Illegal hex digit '%c' ignored", *s); |
a0ed51b3 |
2748 | break; |
2749 | } |
2750 | } |
2751 | n = retval << 4; |
55497cff |
2752 | if (!overflowed && (n >> 4) != retval) { |
cea2e8a9 |
2753 | Perl_warn(aTHX_ "Integer overflow in hex number"); |
55497cff |
2754 | overflowed = TRUE; |
2755 | } |
3280af22 |
2756 | retval = n | ((tmp - PL_hexdigit) & 15); |
6ff81951 |
2757 | } |
fe14fcc3 |
2758 | *retlen = s - start; |
2759 | return retval; |
2760 | } |
760ac839 |
2761 | |
491527d0 |
2762 | char* |
864dbfa3 |
2763 | Perl_find_script(pTHX_ char *scriptname, bool dosearch, char **search_ext, I32 flags) |
491527d0 |
2764 | { |
2765 | dTHR; |
2766 | char *xfound = Nullch; |
2767 | char *xfailed = Nullch; |
0f31cffe |
2768 | char tmpbuf[MAXPATHLEN]; |
491527d0 |
2769 | register char *s; |
2770 | I32 len; |
2771 | int retval; |
2772 | #if defined(DOSISH) && !defined(OS2) && !defined(atarist) |
2773 | # define SEARCH_EXTS ".bat", ".cmd", NULL |
2774 | # define MAX_EXT_LEN 4 |
2775 | #endif |
2776 | #ifdef OS2 |
2777 | # define SEARCH_EXTS ".cmd", ".btm", ".bat", ".pl", NULL |
2778 | # define MAX_EXT_LEN 4 |
2779 | #endif |
2780 | #ifdef VMS |
2781 | # define SEARCH_EXTS ".pl", ".com", NULL |
2782 | # define MAX_EXT_LEN 4 |
2783 | #endif |
2784 | /* additional extensions to try in each dir if scriptname not found */ |
2785 | #ifdef SEARCH_EXTS |
2786 | char *exts[] = { SEARCH_EXTS }; |
2787 | char **ext = search_ext ? search_ext : exts; |
2788 | int extidx = 0, i = 0; |
2789 | char *curext = Nullch; |
2790 | #else |
2791 | # define MAX_EXT_LEN 0 |
2792 | #endif |
2793 | |
2794 | /* |
2795 | * If dosearch is true and if scriptname does not contain path |
2796 | * delimiters, search the PATH for scriptname. |
2797 | * |
2798 | * If SEARCH_EXTS is also defined, will look for each |
2799 | * scriptname{SEARCH_EXTS} whenever scriptname is not found |
2800 | * while searching the PATH. |
2801 | * |
2802 | * Assuming SEARCH_EXTS is C<".foo",".bar",NULL>, PATH search |
2803 | * proceeds as follows: |
2804 | * If DOSISH or VMSISH: |
2805 | * + look for ./scriptname{,.foo,.bar} |
2806 | * + search the PATH for scriptname{,.foo,.bar} |
2807 | * |
2808 | * If !DOSISH: |
2809 | * + look *only* in the PATH for scriptname{,.foo,.bar} (note |
2810 | * this will not look in '.' if it's not in the PATH) |
2811 | */ |
84486fc6 |
2812 | tmpbuf[0] = '\0'; |
491527d0 |
2813 | |
2814 | #ifdef VMS |
2815 | # ifdef ALWAYS_DEFTYPES |
2816 | len = strlen(scriptname); |
2817 | if (!(len == 1 && *scriptname == '-') && scriptname[len-1] != ':') { |
2818 | int hasdir, idx = 0, deftypes = 1; |
2819 | bool seen_dot = 1; |
2820 | |
2821 | hasdir = !dosearch || (strpbrk(scriptname,":[</") != Nullch) ; |
2822 | # else |
2823 | if (dosearch) { |
2824 | int hasdir, idx = 0, deftypes = 1; |
2825 | bool seen_dot = 1; |
2826 | |
2827 | hasdir = (strpbrk(scriptname,":[</") != Nullch) ; |
2828 | # endif |
2829 | /* The first time through, just add SEARCH_EXTS to whatever we |
2830 | * already have, so we can check for default file types. */ |
2831 | while (deftypes || |
84486fc6 |
2832 | (!hasdir && my_trnlnm("DCL$PATH",tmpbuf,idx++)) ) |
491527d0 |
2833 | { |
2834 | if (deftypes) { |
2835 | deftypes = 0; |
84486fc6 |
2836 | *tmpbuf = '\0'; |
491527d0 |
2837 | } |
84486fc6 |
2838 | if ((strlen(tmpbuf) + strlen(scriptname) |
2839 | + MAX_EXT_LEN) >= sizeof tmpbuf) |
491527d0 |
2840 | continue; /* don't search dir with too-long name */ |
84486fc6 |
2841 | strcat(tmpbuf, scriptname); |
491527d0 |
2842 | #else /* !VMS */ |
2843 | |
2844 | #ifdef DOSISH |
2845 | if (strEQ(scriptname, "-")) |
2846 | dosearch = 0; |
2847 | if (dosearch) { /* Look in '.' first. */ |
2848 | char *cur = scriptname; |
2849 | #ifdef SEARCH_EXTS |
2850 | if ((curext = strrchr(scriptname,'.'))) /* possible current ext */ |
2851 | while (ext[i]) |
2852 | if (strEQ(ext[i++],curext)) { |
2853 | extidx = -1; /* already has an ext */ |
2854 | break; |
2855 | } |
2856 | do { |
2857 | #endif |
2858 | DEBUG_p(PerlIO_printf(Perl_debug_log, |
2859 | "Looking for %s\n",cur)); |
017f25f1 |
2860 | if (PerlLIO_stat(cur,&PL_statbuf) >= 0 |
2861 | && !S_ISDIR(PL_statbuf.st_mode)) { |
491527d0 |
2862 | dosearch = 0; |
2863 | scriptname = cur; |
2864 | #ifdef SEARCH_EXTS |
2865 | break; |
2866 | #endif |
2867 | } |
2868 | #ifdef SEARCH_EXTS |
2869 | if (cur == scriptname) { |
2870 | len = strlen(scriptname); |
84486fc6 |
2871 | if (len+MAX_EXT_LEN+1 >= sizeof(tmpbuf)) |
491527d0 |
2872 | break; |
84486fc6 |
2873 | cur = strcpy(tmpbuf, scriptname); |
491527d0 |
2874 | } |
2875 | } while (extidx >= 0 && ext[extidx] /* try an extension? */ |
84486fc6 |
2876 | && strcpy(tmpbuf+len, ext[extidx++])); |
491527d0 |
2877 | #endif |
2878 | } |
2879 | #endif |
2880 | |
2881 | if (dosearch && !strchr(scriptname, '/') |
2882 | #ifdef DOSISH |
2883 | && !strchr(scriptname, '\\') |
2884 | #endif |
2885 | && (s = PerlEnv_getenv("PATH"))) { |
2886 | bool seen_dot = 0; |
2887 | |
3280af22 |
2888 | PL_bufend = s + strlen(s); |
2889 | while (s < PL_bufend) { |
491527d0 |
2890 | #if defined(atarist) || defined(DOSISH) |
2891 | for (len = 0; *s |
2892 | # ifdef atarist |
2893 | && *s != ',' |
2894 | # endif |
2895 | && *s != ';'; len++, s++) { |
84486fc6 |
2896 | if (len < sizeof tmpbuf) |
2897 | tmpbuf[len] = *s; |
491527d0 |
2898 | } |
84486fc6 |
2899 | if (len < sizeof tmpbuf) |
2900 | tmpbuf[len] = '\0'; |
491527d0 |
2901 | #else /* ! (atarist || DOSISH) */ |
3280af22 |
2902 | s = delimcpy(tmpbuf, tmpbuf + sizeof tmpbuf, s, PL_bufend, |
491527d0 |
2903 | ':', |
2904 | &len); |
2905 | #endif /* ! (atarist || DOSISH) */ |
3280af22 |
2906 | if (s < PL_bufend) |
491527d0 |
2907 | s++; |
84486fc6 |
2908 | if (len + 1 + strlen(scriptname) + MAX_EXT_LEN >= sizeof tmpbuf) |
491527d0 |
2909 | continue; /* don't search dir with too-long name */ |
2910 | if (len |
61ae2fbf |
2911 | #if defined(atarist) || defined(__MINT__) || defined(DOSISH) |
84486fc6 |
2912 | && tmpbuf[len - 1] != '/' |
2913 | && tmpbuf[len - 1] != '\\' |
491527d0 |
2914 | #endif |
2915 | ) |
84486fc6 |
2916 | tmpbuf[len++] = '/'; |
2917 | if (len == 2 && tmpbuf[0] == '.') |
491527d0 |
2918 | seen_dot = 1; |
84486fc6 |
2919 | (void)strcpy(tmpbuf + len, scriptname); |
491527d0 |
2920 | #endif /* !VMS */ |
2921 | |
2922 | #ifdef SEARCH_EXTS |
84486fc6 |
2923 | len = strlen(tmpbuf); |
491527d0 |
2924 | if (extidx > 0) /* reset after previous loop */ |
2925 | extidx = 0; |
2926 | do { |
2927 | #endif |
84486fc6 |
2928 | DEBUG_p(PerlIO_printf(Perl_debug_log, "Looking for %s\n",tmpbuf)); |
3280af22 |
2929 | retval = PerlLIO_stat(tmpbuf,&PL_statbuf); |
017f25f1 |
2930 | if (S_ISDIR(PL_statbuf.st_mode)) { |
2931 | retval = -1; |
2932 | } |
491527d0 |
2933 | #ifdef SEARCH_EXTS |
2934 | } while ( retval < 0 /* not there */ |
2935 | && extidx>=0 && ext[extidx] /* try an extension? */ |
84486fc6 |
2936 | && strcpy(tmpbuf+len, ext[extidx++]) |
491527d0 |
2937 | ); |
2938 | #endif |
2939 | if (retval < 0) |
2940 | continue; |
3280af22 |
2941 | if (S_ISREG(PL_statbuf.st_mode) |
2942 | && cando(S_IRUSR,TRUE,&PL_statbuf) |
491527d0 |
2943 | #ifndef DOSISH |
3280af22 |
2944 | && cando(S_IXUSR,TRUE,&PL_statbuf) |
491527d0 |
2945 | #endif |
2946 | ) |
2947 | { |
84486fc6 |
2948 | xfound = tmpbuf; /* bingo! */ |
491527d0 |
2949 | break; |
2950 | } |
2951 | if (!xfailed) |
84486fc6 |
2952 | xfailed = savepv(tmpbuf); |
491527d0 |
2953 | } |
2954 | #ifndef DOSISH |
017f25f1 |
2955 | if (!xfound && !seen_dot && !xfailed && |
2956 | (PerlLIO_stat(scriptname,&PL_statbuf) < 0 |
2957 | || S_ISDIR(PL_statbuf.st_mode))) |
491527d0 |
2958 | #endif |
2959 | seen_dot = 1; /* Disable message. */ |
9ccb31f9 |
2960 | if (!xfound) { |
2961 | if (flags & 1) { /* do or die? */ |
cea2e8a9 |
2962 | Perl_croak(aTHX_ "Can't %s %s%s%s", |
9ccb31f9 |
2963 | (xfailed ? "execute" : "find"), |
2964 | (xfailed ? xfailed : scriptname), |
2965 | (xfailed ? "" : " on PATH"), |
2966 | (xfailed || seen_dot) ? "" : ", '.' not in PATH"); |
2967 | } |
2968 | scriptname = Nullch; |
2969 | } |
491527d0 |
2970 | if (xfailed) |
2971 | Safefree(xfailed); |
2972 | scriptname = xfound; |
2973 | } |
9ccb31f9 |
2974 | return (scriptname ? savepv(scriptname) : Nullch); |
491527d0 |
2975 | } |
2976 | |
2977 | |
11343788 |
2978 | #ifdef USE_THREADS |
12ca11f6 |
2979 | #ifdef FAKE_THREADS |
2980 | /* Very simplistic scheduler for now */ |
2981 | void |
2982 | schedule(void) |
2983 | { |
c7848ba1 |
2984 | thr = thr->i.next_run; |
12ca11f6 |
2985 | } |
2986 | |
2987 | void |
864dbfa3 |
2988 | Perl_cond_init(pTHX_ perl_cond *cp) |
12ca11f6 |
2989 | { |
2990 | *cp = 0; |
2991 | } |
2992 | |
2993 | void |
864dbfa3 |
2994 | Perl_cond_signal(pTHX_ perl_cond *cp) |
12ca11f6 |
2995 | { |
51dd5992 |
2996 | perl_os_thread t; |
12ca11f6 |
2997 | perl_cond cond = *cp; |
2998 | |
2999 | if (!cond) |
3000 | return; |
3001 | t = cond->thread; |
3002 | /* Insert t in the runnable queue just ahead of us */ |
c7848ba1 |
3003 | t->i.next_run = thr->i.next_run; |
3004 | thr->i.next_run->i.prev_run = t; |
3005 | t->i.prev_run = thr; |
3006 | thr->i.next_run = t; |
3007 | thr->i.wait_queue = 0; |
12ca11f6 |
3008 | /* Remove from the wait queue */ |
3009 | *cp = cond->next; |
3010 | Safefree(cond); |
3011 | } |
3012 | |
3013 | void |
864dbfa3 |
3014 | Perl_cond_broadcast(pTHX_ perl_cond *cp) |
12ca11f6 |
3015 | { |
51dd5992 |
3016 | perl_os_thread t; |
12ca11f6 |
3017 | perl_cond cond, cond_next; |
3018 | |
3019 | for (cond = *cp; cond; cond = cond_next) { |
3020 | t = cond->thread; |
3021 | /* Insert t in the runnable queue just ahead of us */ |
c7848ba1 |
3022 | t->i.next_run = thr->i.next_run; |
3023 | thr->i.next_run->i.prev_run = t; |
3024 | t->i.prev_run = thr; |
3025 | thr->i.next_run = t; |
3026 | thr->i.wait_queue = 0; |
12ca11f6 |
3027 | /* Remove from the wait queue */ |
3028 | cond_next = cond->next; |
3029 | Safefree(cond); |
3030 | } |
3031 | *cp = 0; |
3032 | } |
3033 | |
3034 | void |
864dbfa3 |
3035 | Perl_cond_wait(pTHX_ perl_cond *cp) |
12ca11f6 |
3036 | { |
3037 | perl_cond cond; |
3038 | |
c7848ba1 |
3039 | if (thr->i.next_run == thr) |
cea2e8a9 |
3040 | Perl_croak(aTHX_ "panic: perl_cond_wait called by last runnable thread"); |
12ca11f6 |
3041 | |
0f15f207 |
3042 | New(666, cond, 1, struct perl_wait_queue); |
12ca11f6 |
3043 | cond->thread = thr; |
3044 | cond->next = *cp; |
3045 | *cp = cond; |
c7848ba1 |
3046 | thr->i.wait_queue = cond; |
12ca11f6 |
3047 | /* Remove ourselves from runnable queue */ |
c7848ba1 |
3048 | thr->i.next_run->i.prev_run = thr->i.prev_run; |
3049 | thr->i.prev_run->i.next_run = thr->i.next_run; |
12ca11f6 |
3050 | } |
3051 | #endif /* FAKE_THREADS */ |
3052 | |
0d85d877 |
3053 | #ifdef PTHREAD_GETSPECIFIC_INT |
52e1cb5e |
3054 | struct perl_thread * |
864dbfa3 |
3055 | Perl_getTHR(pTHX) |
11343788 |
3056 | { |
3057 | pthread_addr_t t; |
3058 | |
6b88bc9c |
3059 | if (pthread_getspecific(PL_thr_key, &t)) |
cea2e8a9 |
3060 | Perl_croak(aTHX_ "panic: pthread_getspecific"); |
52e1cb5e |
3061 | return (struct perl_thread *) t; |
11343788 |
3062 | } |
0d85d877 |
3063 | #endif |
f93b4edd |
3064 | |
3065 | MAGIC * |
864dbfa3 |
3066 | Perl_condpair_magic(pTHX_ SV *sv) |
f93b4edd |
3067 | { |
3068 | MAGIC *mg; |
3069 | |
3070 | SvUPGRADE(sv, SVt_PVMG); |
3071 | mg = mg_find(sv, 'm'); |
3072 | if (!mg) { |
3073 | condpair_t *cp; |
3074 | |
3075 | New(53, cp, 1, condpair_t); |
3076 | MUTEX_INIT(&cp->mutex); |
3077 | COND_INIT(&cp->owner_cond); |
3078 | COND_INIT(&cp->cond); |
3079 | cp->owner = 0; |
28a8573f |
3080 | MUTEX_LOCK(&PL_cred_mutex); /* XXX need separate mutex? */ |
f93b4edd |
3081 | mg = mg_find(sv, 'm'); |
3082 | if (mg) { |
3083 | /* someone else beat us to initialising it */ |
28a8573f |
3084 | MUTEX_UNLOCK(&PL_cred_mutex); /* XXX need separate mutex? */ |
f93b4edd |
3085 | MUTEX_DESTROY(&cp->mutex); |
3086 | COND_DESTROY(&cp->owner_cond); |
3087 | COND_DESTROY(&cp->cond); |
3088 | Safefree(cp); |
3089 | } |
3090 | else { |
3091 | sv_magic(sv, Nullsv, 'm', 0, 0); |
3092 | mg = SvMAGIC(sv); |
3093 | mg->mg_ptr = (char *)cp; |
565764a8 |
3094 | mg->mg_len = sizeof(cp); |
28a8573f |
3095 | MUTEX_UNLOCK(&PL_cred_mutex); /* XXX need separate mutex? */ |
8b73bbec |
3096 | DEBUG_S(WITH_THR(PerlIO_printf(PerlIO_stderr(), |
c7848ba1 |
3097 | "%p: condpair_magic %p\n", thr, sv));) |
f93b4edd |
3098 | } |
3099 | } |
3100 | return mg; |
3101 | } |
a863c7d1 |
3102 | |
3103 | /* |
199100c8 |
3104 | * Make a new perl thread structure using t as a prototype. Some of the |
3105 | * fields for the new thread are copied from the prototype thread, t, |
3106 | * so t should not be running in perl at the time this function is |
3107 | * called. The use by ext/Thread/Thread.xs in core perl (where t is the |
3108 | * thread calling new_struct_thread) clearly satisfies this constraint. |
a863c7d1 |
3109 | */ |
52e1cb5e |
3110 | struct perl_thread * |
864dbfa3 |
3111 | Perl_new_struct_thread(pTHX_ struct perl_thread *t) |
a863c7d1 |
3112 | { |
cea2e8a9 |
3113 | #ifndef PERL_IMPLICIT_CONTEXT |
52e1cb5e |
3114 | struct perl_thread *thr; |
cea2e8a9 |
3115 | #endif |
a863c7d1 |
3116 | SV *sv; |
199100c8 |
3117 | SV **svp; |
3118 | I32 i; |
3119 | |
79cb57f6 |
3120 | sv = newSVpvn("", 0); |
52e1cb5e |
3121 | SvGROW(sv, sizeof(struct perl_thread) + 1); |
3122 | SvCUR_set(sv, sizeof(struct perl_thread)); |
199100c8 |
3123 | thr = (Thread) SvPVX(sv); |
949ced2d |
3124 | #ifdef DEBUGGING |
52e1cb5e |
3125 | memset(thr, 0xab, sizeof(struct perl_thread)); |
533c011a |
3126 | PL_markstack = 0; |
3127 | PL_scopestack = 0; |
3128 | PL_savestack = 0; |
3129 | PL_retstack = 0; |
3130 | PL_dirty = 0; |
3131 | PL_localizing = 0; |
949ced2d |
3132 | Zero(&PL_hv_fetch_ent_mh, 1, HE); |
3133 | #else |
3134 | Zero(thr, 1, struct perl_thread); |
3135 | #endif |
199100c8 |
3136 | |
cea2e8a9 |
3137 | PL_protect = FUNC_NAME_TO_PTR(Perl_default_protect); |
312caa8e |
3138 | |
199100c8 |
3139 | thr->oursv = sv; |
cea2e8a9 |
3140 | init_stacks(); |
a863c7d1 |
3141 | |
533c011a |
3142 | PL_curcop = &PL_compiling; |
199100c8 |
3143 | thr->cvcache = newHV(); |
54b9620d |
3144 | thr->threadsv = newAV(); |
a863c7d1 |
3145 | thr->specific = newAV(); |
79cb57f6 |
3146 | thr->errsv = newSVpvn("", 0); |
38a03e6e |
3147 | thr->errhv = newHV(); |
a863c7d1 |
3148 | thr->flags = THRf_R_JOINABLE; |
3149 | MUTEX_INIT(&thr->mutex); |
199100c8 |
3150 | |
d55594ae |
3151 | /* top_env needs to be non-zero. It points to an area |
3152 | in which longjmp() stuff is stored, as C callstack |
3153 | info there at least is thread specific this has to |
3154 | be per-thread. Otherwise a 'die' in a thread gives |
3155 | that thread the C stack of last thread to do an eval {}! |
3156 | See comments in scope.h |
3157 | Initialize top entry (as in perl.c for main thread) |
3158 | */ |
533c011a |
3159 | PL_start_env.je_prev = NULL; |
3160 | PL_start_env.je_ret = -1; |
3161 | PL_start_env.je_mustcatch = TRUE; |
3162 | PL_top_env = &PL_start_env; |
3163 | |
faef0170 |
3164 | PL_in_eval = EVAL_NULL; /* ~(EVAL_INEVAL|EVAL_WARNONLY|EVAL_KEEPERR) */ |
533c011a |
3165 | PL_restartop = 0; |
3166 | |
b099ddc0 |
3167 | PL_statname = NEWSV(66,0); |
3168 | PL_maxscream = -1; |
cea2e8a9 |
3169 | PL_regcompp = FUNC_NAME_TO_PTR(Perl_pregcomp); |
3170 | PL_regexecp = FUNC_NAME_TO_PTR(Perl_regexec_flags); |
b099ddc0 |
3171 | PL_regindent = 0; |
3172 | PL_reginterp_cnt = 0; |
3173 | PL_lastscream = Nullsv; |
3174 | PL_screamfirst = 0; |
3175 | PL_screamnext = 0; |
3176 | PL_reg_start_tmp = 0; |
3177 | PL_reg_start_tmpl = 0; |
3178 | |
3179 | /* parent thread's data needs to be locked while we make copy */ |
3180 | MUTEX_LOCK(&t->mutex); |
3181 | |
312caa8e |
3182 | PL_protect = t->Tprotect; |
3183 | |
b099ddc0 |
3184 | PL_curcop = t->Tcurcop; /* XXX As good a guess as any? */ |
3185 | PL_defstash = t->Tdefstash; /* XXX maybe these should */ |
3186 | PL_curstash = t->Tcurstash; /* always be set to main? */ |
3187 | |
6b88bc9c |
3188 | PL_tainted = t->Ttainted; |
84fee439 |
3189 | PL_curpm = t->Tcurpm; /* XXX No PMOP ref count */ |
3190 | PL_nrs = newSVsv(t->Tnrs); |
3191 | PL_rs = SvREFCNT_inc(PL_nrs); |
3192 | PL_last_in_gv = Nullgv; |
3193 | PL_ofslen = t->Tofslen; |
3194 | PL_ofs = savepvn(t->Tofs, PL_ofslen); |
3195 | PL_defoutgv = (GV*)SvREFCNT_inc(t->Tdefoutgv); |
3196 | PL_chopset = t->Tchopset; |
3197 | PL_formtarget = newSVsv(t->Tformtarget); |
3198 | PL_bodytarget = newSVsv(t->Tbodytarget); |
3199 | PL_toptarget = newSVsv(t->Ttoptarget); |
533c011a |
3200 | |
54b9620d |
3201 | /* Initialise all per-thread SVs that the template thread used */ |
3202 | svp = AvARRAY(t->threadsv); |
93965878 |
3203 | for (i = 0; i <= AvFILLp(t->threadsv); i++, svp++) { |
533c011a |
3204 | if (*svp && *svp != &PL_sv_undef) { |
199100c8 |
3205 | SV *sv = newSVsv(*svp); |
54b9620d |
3206 | av_store(thr->threadsv, i, sv); |
533c011a |
3207 | sv_magic(sv, 0, 0, &PL_threadsv_names[i], 1); |
8b73bbec |
3208 | DEBUG_S(PerlIO_printf(PerlIO_stderr(), |
54b9620d |
3209 | "new_struct_thread: copied threadsv %d %p->%p\n",i, t, thr)); |
199100c8 |
3210 | } |
3211 | } |
940cb80d |
3212 | thr->threadsvp = AvARRAY(thr->threadsv); |
199100c8 |
3213 | |
533c011a |
3214 | MUTEX_LOCK(&PL_threads_mutex); |
3215 | PL_nthreads++; |
3216 | thr->tid = ++PL_threadnum; |
199100c8 |
3217 | thr->next = t->next; |
3218 | thr->prev = t; |
3219 | t->next = thr; |
3220 | thr->next->prev = thr; |
533c011a |
3221 | MUTEX_UNLOCK(&PL_threads_mutex); |
a863c7d1 |
3222 | |
b099ddc0 |
3223 | /* done copying parent's state */ |
3224 | MUTEX_UNLOCK(&t->mutex); |
3225 | |
a863c7d1 |
3226 | #ifdef HAVE_THREAD_INTERN |
4f63d024 |
3227 | Perl_init_thread_intern(thr); |
a863c7d1 |
3228 | #endif /* HAVE_THREAD_INTERN */ |
a863c7d1 |
3229 | return thr; |
3230 | } |
11343788 |
3231 | #endif /* USE_THREADS */ |
760ac839 |
3232 | |
3233 | #ifdef HUGE_VAL |
3234 | /* |
3235 | * This hack is to force load of "huge" support from libm.a |
3236 | * So it is in perl for (say) POSIX to use. |
3237 | * Needed for SunOS with Sun's 'acc' for example. |
3238 | */ |
3239 | double |
8ac85365 |
3240 | Perl_huge(void) |
760ac839 |
3241 | { |
3242 | return HUGE_VAL; |
3243 | } |
3244 | #endif |
4e35701f |
3245 | |
22239a37 |
3246 | #ifdef PERL_GLOBAL_STRUCT |
3247 | struct perl_vars * |
864dbfa3 |
3248 | Perl_GetVars(pTHX) |
22239a37 |
3249 | { |
533c011a |
3250 | return &PL_Vars; |
22239a37 |
3251 | } |
31fb1209 |
3252 | #endif |
3253 | |
3254 | char ** |
864dbfa3 |
3255 | Perl_get_op_names(pTHX) |
31fb1209 |
3256 | { |
22c35a8c |
3257 | return PL_op_name; |
31fb1209 |
3258 | } |
3259 | |
3260 | char ** |
864dbfa3 |
3261 | Perl_get_op_descs(pTHX) |
31fb1209 |
3262 | { |
22c35a8c |
3263 | return PL_op_desc; |
31fb1209 |
3264 | } |
9e6b2b00 |
3265 | |
3266 | char * |
864dbfa3 |
3267 | Perl_get_no_modify(pTHX) |
9e6b2b00 |
3268 | { |
22c35a8c |
3269 | return (char*)PL_no_modify; |
9e6b2b00 |
3270 | } |
3271 | |
3272 | U32 * |
864dbfa3 |
3273 | Perl_get_opargs(pTHX) |
9e6b2b00 |
3274 | { |
22c35a8c |
3275 | return PL_opargs; |
9e6b2b00 |
3276 | } |
51aa15f3 |
3277 | |
a6c40364 |
3278 | #ifndef HAS_GETENV_LEN |
3279 | char * |
864dbfa3 |
3280 | Perl_getenv_len(pTHX_ char *env_elem, unsigned long *len) |
a6c40364 |
3281 | { |
3282 | char *env_trans = PerlEnv_getenv(env_elem); |
3283 | if (env_trans) |
3284 | *len = strlen(env_trans); |
3285 | return env_trans; |
f675dbe5 |
3286 | } |
3287 | #endif |
3288 | |
dc9e4912 |
3289 | |
3290 | MGVTBL* |
864dbfa3 |
3291 | Perl_get_vtbl(pTHX_ int vtbl_id) |
dc9e4912 |
3292 | { |
3293 | MGVTBL* result = Null(MGVTBL*); |
3294 | |
3295 | switch(vtbl_id) { |
3296 | case want_vtbl_sv: |
3297 | result = &PL_vtbl_sv; |
3298 | break; |
3299 | case want_vtbl_env: |
3300 | result = &PL_vtbl_env; |
3301 | break; |
3302 | case want_vtbl_envelem: |
3303 | result = &PL_vtbl_envelem; |
3304 | break; |
3305 | case want_vtbl_sig: |
3306 | result = &PL_vtbl_sig; |
3307 | break; |
3308 | case want_vtbl_sigelem: |
3309 | result = &PL_vtbl_sigelem; |
3310 | break; |
3311 | case want_vtbl_pack: |
3312 | result = &PL_vtbl_pack; |
3313 | break; |
3314 | case want_vtbl_packelem: |
3315 | result = &PL_vtbl_packelem; |
3316 | break; |
3317 | case want_vtbl_dbline: |
3318 | result = &PL_vtbl_dbline; |
3319 | break; |
3320 | case want_vtbl_isa: |
3321 | result = &PL_vtbl_isa; |
3322 | break; |
3323 | case want_vtbl_isaelem: |
3324 | result = &PL_vtbl_isaelem; |
3325 | break; |
3326 | case want_vtbl_arylen: |
3327 | result = &PL_vtbl_arylen; |
3328 | break; |
3329 | case want_vtbl_glob: |
3330 | result = &PL_vtbl_glob; |
3331 | break; |
3332 | case want_vtbl_mglob: |
3333 | result = &PL_vtbl_mglob; |
3334 | break; |
3335 | case want_vtbl_nkeys: |
3336 | result = &PL_vtbl_nkeys; |
3337 | break; |
3338 | case want_vtbl_taint: |
3339 | result = &PL_vtbl_taint; |
3340 | break; |
3341 | case want_vtbl_substr: |
3342 | result = &PL_vtbl_substr; |
3343 | break; |
3344 | case want_vtbl_vec: |
3345 | result = &PL_vtbl_vec; |
3346 | break; |
3347 | case want_vtbl_pos: |
3348 | result = &PL_vtbl_pos; |
3349 | break; |
3350 | case want_vtbl_bm: |
3351 | result = &PL_vtbl_bm; |
3352 | break; |
3353 | case want_vtbl_fm: |
3354 | result = &PL_vtbl_fm; |
3355 | break; |
3356 | case want_vtbl_uvar: |
3357 | result = &PL_vtbl_uvar; |
3358 | break; |
3359 | #ifdef USE_THREADS |
3360 | case want_vtbl_mutex: |
3361 | result = &PL_vtbl_mutex; |
3362 | break; |
3363 | #endif |
3364 | case want_vtbl_defelem: |
3365 | result = &PL_vtbl_defelem; |
3366 | break; |
3367 | case want_vtbl_regexp: |
3368 | result = &PL_vtbl_regexp; |
3369 | break; |
3370 | case want_vtbl_regdata: |
3371 | result = &PL_vtbl_regdata; |
3372 | break; |
3373 | case want_vtbl_regdatum: |
3374 | result = &PL_vtbl_regdatum; |
3375 | break; |
3c90161d |
3376 | #ifdef USE_LOCALE_COLLATE |
dc9e4912 |
3377 | case want_vtbl_collxfrm: |
3378 | result = &PL_vtbl_collxfrm; |
3379 | break; |
3c90161d |
3380 | #endif |
dc9e4912 |
3381 | case want_vtbl_amagic: |
3382 | result = &PL_vtbl_amagic; |
3383 | break; |
3384 | case want_vtbl_amagicelem: |
3385 | result = &PL_vtbl_amagicelem; |
3386 | break; |
810b8aa5 |
3387 | case want_vtbl_backref: |
3388 | result = &PL_vtbl_backref; |
3389 | break; |
dc9e4912 |
3390 | } |
3391 | return result; |
3392 | } |
3393 | |
767df6a1 |
3394 | I32 |
864dbfa3 |
3395 | Perl_my_fflush_all(pTHX) |
767df6a1 |
3396 | { |
3397 | #ifdef FFLUSH_NULL |
ce720889 |
3398 | return PerlIO_flush(NULL); |
767df6a1 |
3399 | #else |
3400 | long open_max = -1; |
ed39a0f2 |
3401 | # if defined(FFLUSH_ALL) && defined(HAS_STDIO_STREAM_ARRAY) |
d2201af2 |
3402 | # ifdef PERL_FFLUSH_ALL_FOPEN_MAX |
3403 | open_max = PERL_FFLUSH_ALL_FOPEN_MAX; |
3404 | # else |
767df6a1 |
3405 | # if defined(HAS_SYSCONF) && defined(_SC_OPEN_MAX) |
3406 | open_max = sysconf(_SC_OPEN_MAX); |
3407 | # else |
3408 | # ifdef FOPEN_MAX |
d2201af2 |
3409 | open_max = FOPEN_MAX; |
767df6a1 |
3410 | # else |
3411 | # ifdef OPEN_MAX |
d2201af2 |
3412 | open_max = OPEN_MAX; |
767df6a1 |
3413 | # else |
3414 | # ifdef _NFILE |
d2201af2 |
3415 | open_max = _NFILE; |
767df6a1 |
3416 | # endif |
3417 | # endif |
3418 | # endif |
3419 | # endif |
d2201af2 |
3420 | # endif |
767df6a1 |
3421 | if (open_max > 0) { |
3422 | long i; |
3423 | for (i = 0; i < open_max; i++) |
d2201af2 |
3424 | if (STDIO_STREAM_ARRAY[i]._file >= 0 && |
3425 | STDIO_STREAM_ARRAY[i]._file < open_max && |
3426 | STDIO_STREAM_ARRAY[i]._flag) |
3427 | PerlIO_flush(&STDIO_STREAM_ARRAY[i]); |
767df6a1 |
3428 | return 0; |
3429 | } |
3430 | # endif |
3431 | SETERRNO(EBADF,RMS$_IFI); |
3432 | return EOF; |
3433 | #endif |
3434 | } |