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Assorted changes for multi-threading (now works rather more).
[p5sagit/p5-mst-13.2.git] / perl.h
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a0d0e21e 1/* perl.h
a687059c 2 *
9607fc9c 3 * Copyright (c) 1987-1997, Larry Wall
a687059c 4 *
352d5a3a 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 */
85e6fe83 9#ifndef H_PERL
10#define H_PERL 1
a0d0e21e 11#define OVERLOAD
8d063cd8 12
760ac839 13#ifdef PERL_FOR_X2P
14/*
15 * This file is being used for x2p stuff.
16 * Above symbol is defined via -D in 'x2p/Makefile.SH'
17 * Decouple x2p stuff from some of perls more extreme eccentricities.
18 */
760ac839 19#undef EMBED
55497cff 20#undef NO_EMBED
21#define NO_EMBED
22#undef MULTIPLICITY
760ac839 23#undef USE_STDIO
24#define USE_STDIO
25#endif /* PERL_FOR_X2P */
26
71be2cbc 27#define VOIDUSED 1
28#include "config.h"
29
30#include "embed.h"
31
462e5cf6 32#ifdef OP_IN_REGISTER
33# ifdef __GNUC__
34# define stringify_immed(s) #s
35# define stringify(s) stringify_immed(s)
36register struct op *op asm(stringify(OP_IN_REGISTER));
37# endif
38#endif
39
728e2803 40/*
41 * STMT_START { statements; } STMT_END;
42 * can be used as a single statement, as in
43 * if (x) STMT_START { ... } STMT_END; else ...
44 *
45 * Trying to select a version that gives no warnings...
46 */
47#if !(defined(STMT_START) && defined(STMT_END))
169d69b2 48# if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(__cplusplus)
728e2803 49# define STMT_START (void)( /* gcc supports ``({ STATEMENTS; })'' */
50# define STMT_END )
51# else
52 /* Now which other defined()s do we need here ??? */
53# if (VOIDFLAGS) && (defined(sun) || defined(__sun__))
54# define STMT_START if (1)
55# define STMT_END else (void)0
56# else
57# define STMT_START do
58# define STMT_END while (0)
59# endif
60# endif
61#endif
62
462e5cf6 63#define NOOP (void)0
64
0f15f207 65#define WITH_THR(s) do { dTHR; s; } while (0)
11343788 66#ifdef USE_THREADS
12ca11f6 67#ifdef FAKE_THREADS
68#include "fakethr.h"
69#else
11343788 70#include <pthread.h>
12ca11f6 71typedef pthread_mutex_t perl_mutex;
72typedef pthread_cond_t perl_cond;
0f15f207 73typedef pthread_key_t perl_key;
12ca11f6 74#endif /* FAKE_THREADS */
75#endif /* USE_THREADS */
11343788 76
55497cff 77/*
78 * SOFT_CAST can be used for args to prototyped functions to retain some
79 * type checking; it only casts if the compiler does not know prototypes.
80 */
81#if defined(CAN_PROTOTYPE) && defined(DEBUGGING_COMPILE)
82#define SOFT_CAST(type)
83#else
84#define SOFT_CAST(type) (type)
85#endif
79072805 86
87#ifndef BYTEORDER
88# define BYTEORDER 0x1234
89#endif
90
91/* Overall memory policy? */
92#ifndef CONSERVATIVE
93# define LIBERAL 1
94#endif
95
96/*
97 * The following contortions are brought to you on behalf of all the
98 * standards, semi-standards, de facto standards, not-so-de-facto standards
99 * of the world, as well as all the other botches anyone ever thought of.
100 * The basic theory is that if we work hard enough here, the rest of the
101 * code can be a lot prettier. Well, so much for theory. Sorry, Henry...
102 */
ac58e20f 103
ee0007ab 104/* define this once if either system, instead of cluttering up the src */
68dc0745 105#if defined(MSDOS) || defined(atarist) || defined(WIN32)
ee0007ab 106#define DOSISH 1
107#endif
108
a0d0e21e 109#if defined(__STDC__) || defined(vax11c) || defined(_AIX) || defined(__stdc__) || defined(__cplusplus)
352d5a3a 110# define STANDARD_C 1
111#endif
112
68dc0745 113#if defined(__cplusplus) || defined(WIN32)
114# define DONT_DECLARE_STD 1
115#endif
116
352d5a3a 117#if defined(HASVOLATILE) || defined(STANDARD_C)
79072805 118# ifdef __cplusplus
119# define VOL // to temporarily suppress warnings
120# else
121# define VOL volatile
122# endif
663a0e37 123#else
79072805 124# define VOL
663a0e37 125#endif
126
bbce6d69 127#define TAINT (tainted = TRUE)
128#define TAINT_NOT (tainted = FALSE)
129#define TAINT_IF(c) if (c) { tainted = TRUE; }
130#define TAINT_ENV() if (tainting) { taint_env(); }
131#define TAINT_PROPER(s) if (tainting) { taint_proper(no_security, s); }
a687059c 132
a6e633de 133/* XXX All process group stuff is handled in pp_sys.c. Should these
134 defines move there? If so, I could simplify this a lot. --AD 9/96.
135*/
136/* Process group stuff changed from traditional BSD to POSIX.
137 perlfunc.pod documents the traditional BSD-style syntax, so we'll
138 try to preserve that, if possible.
139*/
140#ifdef HAS_SETPGID
141# define BSD_SETPGRP(pid, pgrp) setpgid((pid), (pgrp))
c07a80fd 142#else
a6e633de 143# if defined(HAS_SETPGRP) && defined(USE_BSD_SETPGRP)
144# define BSD_SETPGRP(pid, pgrp) setpgrp((pid), (pgrp))
145# else
146# ifdef HAS_SETPGRP2 /* DG/UX */
147# define BSD_SETPGRP(pid, pgrp) setpgrp2((pid), (pgrp))
148# endif
149# endif
150#endif
151#if defined(BSD_SETPGRP) && !defined(HAS_SETPGRP)
152# define HAS_SETPGRP /* Well, effectively it does . . . */
153#endif
154
155/* getpgid isn't POSIX, but at least Solaris and Linux have it, and it makes
156 our life easier :-) so we'll try it.
157*/
158#ifdef HAS_GETPGID
159# define BSD_GETPGRP(pid) getpgid((pid))
160#else
161# if defined(HAS_GETPGRP) && defined(USE_BSD_GETPGRP)
162# define BSD_GETPGRP(pid) getpgrp((pid))
163# else
164# ifdef HAS_GETPGRP2 /* DG/UX */
165# define BSD_GETPGRP(pid) getpgrp2((pid))
166# endif
167# endif
168#endif
169#if defined(BSD_GETPGRP) && !defined(HAS_GETPGRP)
170# define HAS_GETPGRP /* Well, effectively it does . . . */
171#endif
172
173/* These are not exact synonyms, since setpgrp() and getpgrp() may
174 have different behaviors, but perl.h used to define USE_BSDPGRP
175 (prior to 5.003_05) so some extension might depend on it.
176*/
177#if defined(USE_BSD_SETPGRP) || defined(USE_BSD_GETPGRP)
178# ifndef USE_BSDPGRP
179# define USE_BSDPGRP
180# endif
663a0e37 181#endif
182
760ac839 183#ifndef _TYPES_ /* If types.h defines this it's easy. */
184# ifndef major /* Does everyone's types.h define this? */
185# include <sys/types.h>
c07a80fd 186# endif
663a0e37 187#endif
188
760ac839 189#ifdef __cplusplus
190# ifndef I_STDARG
191# define I_STDARG 1
192# endif
193#endif
194
195#ifdef I_STDARG
196# include <stdarg.h>
197#else
198# ifdef I_VARARGS
199# include <varargs.h>
200# endif
201#endif
202
203#include "perlio.h"
0c30d9ec 204
4633a7c4 205#ifdef USE_NEXT_CTYPE
0c30d9ec 206
207#if NX_CURRENT_COMPILER_RELEASE >= 400
208#include <objc/NXCType.h>
209#else /* NX_CURRENT_COMPILER_RELEASE < 400 */
a0d0e21e 210#include <appkit/NXCType.h>
0c30d9ec 211#endif /* NX_CURRENT_COMPILER_RELEASE >= 400 */
212
213#else /* !USE_NEXT_CTYPE */
fe14fcc3 214#include <ctype.h>
0c30d9ec 215#endif /* USE_NEXT_CTYPE */
a0d0e21e 216
217#ifdef METHOD /* Defined by OSF/1 v3.0 by ctype.h */
218#undef METHOD
a0d0e21e 219#endif
220
4633a7c4 221#ifdef I_LOCALE
36477c24 222# include <locale.h>
4633a7c4 223#endif
224
36477c24 225#if !defined(NO_LOCALE) && defined(HAS_SETLOCALE)
226# define USE_LOCALE
227# if !defined(NO_LOCALE_COLLATE) && defined(LC_COLLATE) \
228 && defined(HAS_STRXFRM)
229# define USE_LOCALE_COLLATE
230# endif
231# if !defined(NO_LOCALE_CTYPE) && defined(LC_CTYPE)
232# define USE_LOCALE_CTYPE
233# endif
234# if !defined(NO_LOCALE_NUMERIC) && defined(LC_NUMERIC)
235# define USE_LOCALE_NUMERIC
236# endif
237#endif /* !NO_LOCALE && HAS_SETLOCALE */
a0d0e21e 238
fe14fcc3 239#include <setjmp.h>
79072805 240
a0d0e21e 241#ifdef I_SYS_PARAM
79072805 242# ifdef PARAM_NEEDS_TYPES
243# include <sys/types.h>
244# endif
245# include <sys/param.h>
352d5a3a 246#endif
79072805 247
248
249/* Use all the "standard" definitions? */
a0d0e21e 250#if defined(STANDARD_C) && defined(I_STDLIB)
79072805 251# include <stdlib.h>
ff68c719 252#endif
03a14243 253
55497cff 254/* This comes after <stdlib.h> so we don't try to change the standard
255 * library prototypes; we'll use our own in proto.h instead. */
03a14243 256
4633a7c4 257#ifdef MYMALLOC
55497cff 258
4633a7c4 259# ifdef HIDEMYMALLOC
55497cff 260# define malloc Mymalloc
261# define calloc Mycalloc
4633a7c4 262# define realloc Myremalloc
55497cff 263# define free Myfree
264# endif
265# ifdef EMBEDMYMALLOC
266# define malloc Perl_malloc
267# define calloc Perl_calloc
268# define realloc Perl_realloc
269# define free Perl_free
4633a7c4 270# endif
55497cff 271
272# undef safemalloc
273# undef safecalloc
274# undef saferealloc
275# undef safefree
276# define safemalloc malloc
277# define safecalloc calloc
4633a7c4 278# define saferealloc realloc
55497cff 279# define safefree free
280
281#endif /* MYMALLOC */
4633a7c4 282
a0d0e21e 283#define MEM_SIZE Size_t
284
ff68c719 285#if defined(STANDARD_C) && defined(I_STDDEF)
286# include <stddef.h>
71be2cbc 287# define STRUCT_OFFSET(s,m) offsetof(s,m)
ff68c719 288#else
71be2cbc 289# define STRUCT_OFFSET(s,m) (Size_t)(&(((s *)0)->m))
ff68c719 290#endif
291
a0d0e21e 292#if defined(I_STRING) || defined(__cplusplus)
293# include <string.h>
294#else
295# include <strings.h>
296#endif
297
298#if !defined(HAS_STRCHR) && defined(HAS_INDEX) && !defined(strchr)
299#define strchr index
300#define strrchr rindex
301#endif
302
16d20bd9 303#ifdef I_MEMORY
304# include <memory.h>
305#endif
306
fe14fcc3 307#ifdef HAS_MEMCPY
85e6fe83 308# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
fe14fcc3 309# ifndef memcpy
a0d0e21e 310 extern char * memcpy _((char*, char*, int));
ee0007ab 311# endif
312# endif
313#else
314# ifndef memcpy
315# ifdef HAS_BCOPY
316# define memcpy(d,s,l) bcopy(s,d,l)
317# else
318# define memcpy(d,s,l) my_bcopy(s,d,l)
319# endif
320# endif
321#endif /* HAS_MEMCPY */
fe14fcc3 322
ee0007ab 323#ifdef HAS_MEMSET
85e6fe83 324# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 325# ifndef memset
a0d0e21e 326 extern char *memset _((char*, int, int));
ee0007ab 327# endif
328# endif
ee0007ab 329#else
fc36a67e 330# define memset(d,c,l) my_memset(d,c,l)
ee0007ab 331#endif /* HAS_MEMSET */
332
85e6fe83 333#if !defined(HAS_MEMMOVE) && !defined(memmove)
2304df62 334# if defined(HAS_BCOPY) && defined(HAS_SAFE_BCOPY)
79072805 335# define memmove(d,s,l) bcopy(s,d,l)
336# else
2304df62 337# if defined(HAS_MEMCPY) && defined(HAS_SAFE_MEMCPY)
79072805 338# define memmove(d,s,l) memcpy(d,s,l)
ee0007ab 339# else
79072805 340# define memmove(d,s,l) my_bcopy(s,d,l)
ee0007ab 341# endif
352d5a3a 342# endif
d9d8d8de 343#endif
ee0007ab 344
36477c24 345#if defined(mips) && defined(ultrix) && !defined(__STDC__)
346# undef HAS_MEMCMP
347#endif
348
349#if defined(HAS_MEMCMP) && defined(HAS_SANE_MEMCMP)
85e6fe83 350# if !defined(STANDARD_C) && !defined(I_STRING) && !defined(I_MEMORY)
ee0007ab 351# ifndef memcmp
a0d0e21e 352 extern int memcmp _((char*, char*, int));
ee0007ab 353# endif
354# endif
36477c24 355# ifdef BUGGY_MSC
356 # pragma function(memcmp)
357# endif
ee0007ab 358#else
359# ifndef memcmp
ecfc5424 360# define memcmp my_memcmp
352d5a3a 361# endif
36477c24 362#endif /* HAS_MEMCMP && HAS_SANE_MEMCMP */
8d063cd8 363
fc36a67e 364#ifndef memzero
c635e13b 365# ifdef HAS_MEMSET
366# define memzero(d,l) memset(d,0,l)
79072805 367# else
c635e13b 368# ifdef HAS_BZERO
369# define memzero(d,l) bzero(d,l)
79072805 370# else
fc36a67e 371# define memzero(d,l) my_bzero(d,l)
79072805 372# endif
373# endif
d9d8d8de 374#endif
378cc40b 375
36477c24 376#ifndef HAS_BCMP
377# ifndef bcmp
378# define bcmp(s1,s2,l) memcmp(s1,s2,l)
79072805 379# endif
36477c24 380#endif /* !HAS_BCMP */
378cc40b 381
ae986130 382#ifdef I_NETINET_IN
79072805 383# include <netinet/in.h>
ae986130 384#endif
385
1aef975c 386#ifdef I_SYS_STAT
8d063cd8 387#include <sys/stat.h>
1aef975c 388#endif
79072805 389
a0d0e21e 390/* The stat macros for Amdahl UTS, Unisoft System V/88 (and derivatives
391 like UTekV) are broken, sometimes giving false positives. Undefine
392 them here and let the code below set them to proper values.
393
394 The ghs macro stands for GreenHills Software C-1.8.5 which
395 is the C compiler for sysV88 and the various derivatives.
396 This header file bug is corrected in gcc-2.5.8 and later versions.
397 --Kaveh Ghazi (ghazi@noc.rutgers.edu) 10/3/94. */
398
399#if defined(uts) || (defined(m88k) && defined(ghs))
79072805 400# undef S_ISDIR
401# undef S_ISCHR
402# undef S_ISBLK
403# undef S_ISREG
404# undef S_ISFIFO
405# undef S_ISLNK
ee0007ab 406#endif
135863df 407
663a0e37 408#ifdef I_TIME
409# include <time.h>
ffed7fef 410#endif
663a0e37 411
fe14fcc3 412#ifdef I_SYS_TIME
85e6fe83 413# ifdef I_SYS_TIME_KERNEL
663a0e37 414# define KERNEL
415# endif
416# include <sys/time.h>
85e6fe83 417# ifdef I_SYS_TIME_KERNEL
663a0e37 418# undef KERNEL
419# endif
a687059c 420#endif
135863df 421
55497cff 422#if defined(HAS_TIMES) && defined(I_SYS_TIMES)
85e6fe83 423# include <sys/times.h>
d9d8d8de 424#endif
8d063cd8 425
fe14fcc3 426#if defined(HAS_STRERROR) && (!defined(HAS_MKDIR) || !defined(HAS_RMDIR))
79072805 427# undef HAS_STRERROR
663a0e37 428#endif
429
a0d0e21e 430#ifndef HAS_MKFIFO
431# ifndef mkfifo
432# define mkfifo(path, mode) (mknod((path), (mode) | S_IFIFO, 0))
433# endif
434#endif /* !HAS_MKFIFO */
435
663a0e37 436#include <errno.h>
ed6116ce 437#ifdef HAS_SOCKET
85e6fe83 438# ifdef I_NET_ERRNO
ed6116ce 439# include <net/errno.h>
440# endif
441#endif
f86702cc 442
443#ifdef VMS
444# define SETERRNO(errcode,vmserrcode) \
445 STMT_START { \
446 set_errno(errcode); \
447 set_vaxc_errno(vmserrcode); \
448 } STMT_END
748a9306 449#else
f86702cc 450# define SETERRNO(errcode,vmserrcode) errno = (errcode)
748a9306 451#endif
ed6116ce 452
55497cff 453#ifndef errno
79072805 454 extern int errno; /* ANSI allows errno to be an lvalue expr */
d9d8d8de 455#endif
663a0e37 456
2304df62 457#ifdef HAS_STRERROR
a0d0e21e 458# ifdef VMS
459 char *strerror _((int,...));
460# else
68dc0745 461#ifndef DONT_DECLARE_STD
a0d0e21e 462 char *strerror _((int));
68dc0745 463#endif
a0d0e21e 464# endif
2304df62 465# ifndef Strerror
466# define Strerror strerror
467# endif
468#else
469# ifdef HAS_SYS_ERRLIST
79072805 470 extern int sys_nerr;
471 extern char *sys_errlist[];
2304df62 472# ifndef Strerror
473# define Strerror(e) \
79072805 474 ((e) < 0 || (e) >= sys_nerr ? "(unknown)" : sys_errlist[e])
2304df62 475# endif
79072805 476# endif
35c8bce7 477#endif
663a0e37 478
2304df62 479#ifdef I_SYS_IOCTL
79072805 480# ifndef _IOCTL_
481# include <sys/ioctl.h>
482# endif
a687059c 483#endif
484
ee0007ab 485#if defined(mc300) || defined(mc500) || defined(mc700) || defined(mc6000)
79072805 486# ifdef HAS_SOCKETPAIR
487# undef HAS_SOCKETPAIR
488# endif
2304df62 489# ifdef I_NDBM
490# undef I_NDBM
79072805 491# endif
a687059c 492#endif
493
a687059c 494#if INTSIZE == 2
79072805 495# define htoni htons
496# define ntohi ntohs
a687059c 497#else
79072805 498# define htoni htonl
499# define ntohi ntohl
a687059c 500#endif
501
a0d0e21e 502/* Configure already sets Direntry_t */
35c8bce7 503#if defined(I_DIRENT)
663a0e37 504# include <dirent.h>
a0d0e21e 505# if defined(NeXT) && defined(I_SYS_DIR) /* NeXT needs dirent + sys/dir.h */
506# include <sys/dir.h>
507# endif
ae986130 508#else
fe14fcc3 509# ifdef I_SYS_NDIR
79a0689e 510# include <sys/ndir.h>
663a0e37 511# else
fe14fcc3 512# ifdef I_SYS_DIR
79a0689e 513# ifdef hp9000s500
514# include <ndir.h> /* may be wrong in the future */
515# else
516# include <sys/dir.h>
517# endif
663a0e37 518# endif
519# endif
4633a7c4 520#endif
a687059c 521
352d5a3a 522#ifdef FPUTS_BOTCH
523/* work around botch in SunOS 4.0.1 and 4.0.2 */
524# ifndef fputs
79072805 525# define fputs(sv,fp) fprintf(fp,"%s",sv)
352d5a3a 526# endif
527#endif
528
c623bd54 529/*
530 * The following gobbledygook brought to you on behalf of __STDC__.
531 * (I could just use #ifndef __STDC__, but this is more bulletproof
532 * in the face of half-implementations.)
533 */
534
535#ifndef S_IFMT
536# ifdef _S_IFMT
537# define S_IFMT _S_IFMT
538# else
539# define S_IFMT 0170000
540# endif
541#endif
542
543#ifndef S_ISDIR
544# define S_ISDIR(m) ((m & S_IFMT) == S_IFDIR)
545#endif
546
547#ifndef S_ISCHR
548# define S_ISCHR(m) ((m & S_IFMT) == S_IFCHR)
549#endif
550
551#ifndef S_ISBLK
fe14fcc3 552# ifdef S_IFBLK
553# define S_ISBLK(m) ((m & S_IFMT) == S_IFBLK)
554# else
555# define S_ISBLK(m) (0)
556# endif
c623bd54 557#endif
558
559#ifndef S_ISREG
560# define S_ISREG(m) ((m & S_IFMT) == S_IFREG)
561#endif
562
563#ifndef S_ISFIFO
fe14fcc3 564# ifdef S_IFIFO
565# define S_ISFIFO(m) ((m & S_IFMT) == S_IFIFO)
566# else
567# define S_ISFIFO(m) (0)
568# endif
c623bd54 569#endif
570
571#ifndef S_ISLNK
572# ifdef _S_ISLNK
573# define S_ISLNK(m) _S_ISLNK(m)
574# else
575# ifdef _S_IFLNK
576# define S_ISLNK(m) ((m & S_IFMT) == _S_IFLNK)
577# else
578# ifdef S_IFLNK
579# define S_ISLNK(m) ((m & S_IFMT) == S_IFLNK)
580# else
581# define S_ISLNK(m) (0)
582# endif
583# endif
584# endif
585#endif
586
587#ifndef S_ISSOCK
588# ifdef _S_ISSOCK
589# define S_ISSOCK(m) _S_ISSOCK(m)
590# else
591# ifdef _S_IFSOCK
592# define S_ISSOCK(m) ((m & S_IFMT) == _S_IFSOCK)
593# else
594# ifdef S_IFSOCK
595# define S_ISSOCK(m) ((m & S_IFMT) == S_IFSOCK)
596# else
597# define S_ISSOCK(m) (0)
598# endif
599# endif
600# endif
601#endif
602
603#ifndef S_IRUSR
604# ifdef S_IREAD
605# define S_IRUSR S_IREAD
606# define S_IWUSR S_IWRITE
607# define S_IXUSR S_IEXEC
608# else
609# define S_IRUSR 0400
610# define S_IWUSR 0200
611# define S_IXUSR 0100
612# endif
613# define S_IRGRP (S_IRUSR>>3)
614# define S_IWGRP (S_IWUSR>>3)
615# define S_IXGRP (S_IXUSR>>3)
616# define S_IROTH (S_IRUSR>>6)
617# define S_IWOTH (S_IWUSR>>6)
618# define S_IXOTH (S_IXUSR>>6)
619#endif
620
621#ifndef S_ISUID
622# define S_ISUID 04000
623#endif
624
625#ifndef S_ISGID
626# define S_ISGID 02000
627#endif
628
79072805 629#ifdef ff_next
630# undef ff_next
352d5a3a 631#endif
632
a0d0e21e 633#if defined(cray) || defined(gould) || defined(i860) || defined(pyr)
45d8adaa 634# define SLOPPYDIVIDE
635#endif
636
748a9306 637#ifdef UV
638#undef UV
639#endif
640
27d4fb96 641/* XXX QUAD stuff is not currently supported on most systems.
642 Specifically, perl internals don't support long long. Among
643 the many problems is that some compilers support long long,
644 but the underlying library functions (such as sprintf) don't.
645 Some things do work (such as quad pack/unpack on convex);
646 also some systems use long long for the fpos_t typedef. That
647 seems to work too.
648
649 The IV type is supposed to be long enough to hold any integral
650 value or a pointer.
651 --Andy Dougherty August 1996
652*/
653
f86702cc 654#ifdef cray
655# define Quad_t int
656#else
657# ifdef convex
658# define Quad_t long long
45d8adaa 659# else
ff0cee69 660# if BYTEORDER > 0xFFFF
ecfc5424 661# define Quad_t long
45d8adaa 662# endif
663# endif
f86702cc 664#endif
665
666#ifdef Quad_t
667# define HAS_QUAD
748a9306 668 typedef Quad_t IV;
669 typedef unsigned Quad_t UV;
27d4fb96 670# define IV_MAX PERL_QUAD_MAX
671# define IV_MIN PERL_QUAD_MIN
672# define UV_MAX PERL_UQUAD_MAX
673# define UV_MIN PERL_UQUAD_MIN
79072805 674#else
748a9306 675 typedef long IV;
676 typedef unsigned long UV;
27d4fb96 677# define IV_MAX PERL_LONG_MAX
678# define IV_MIN PERL_LONG_MIN
679# define UV_MAX PERL_ULONG_MAX
680# define UV_MIN PERL_ULONG_MIN
79072805 681#endif
682
760ac839 683/* Previously these definitions used hardcoded figures.
684 * It is hoped these formula are more portable, although
685 * no data one way or another is presently known to me.
686 * The "PERL_" names are used because these calculated constants
687 * do not meet the ANSI requirements for LONG_MAX, etc., which
688 * need to be constants acceptable to #if - kja
689 * define PERL_LONG_MAX 2147483647L
690 * define PERL_LONG_MIN (-LONG_MAX - 1)
691 * define PERL ULONG_MAX 4294967295L
692 */
693
694#ifdef I_LIMITS /* Needed for cast_xxx() functions below. */
695# include <limits.h>
696#else
697#ifdef I_VALUES
698# include <values.h>
699#endif
700#endif
701
99abf803 702/*
703 * Try to figure out max and min values for the integral types. THE CORRECT
704 * SOLUTION TO THIS MESS: ADAPT enquire.c FROM GCC INTO CONFIGURE. The
705 * following hacks are used if neither limits.h or values.h provide them:
706 * U<TYPE>_MAX: for types >= int: ~(unsigned TYPE)0
707 * for types < int: (unsigned TYPE)~(unsigned)0
708 * The argument to ~ must be unsigned so that later signed->unsigned
709 * conversion can't modify the value's bit pattern (e.g. -0 -> +0),
710 * and it must not be smaller than int because ~ does integral promotion.
711 * <type>_MAX: (<type>) (U<type>_MAX >> 1)
712 * <type>_MIN: -<type>_MAX - <is_twos_complement_architecture: (3 & -1) == 3>.
713 * The latter is a hack which happens to work on some machines but
714 * does *not* catch any random system, or things like integer types
715 * with NaN if that is possible.
716 *
717 * All of the types are explicitly cast to prevent accidental loss of
718 * numeric range, and in the hope that they will be less likely to confuse
719 * over-eager optimizers.
720 *
721 */
27d4fb96 722
99abf803 723#define PERL_UCHAR_MIN ((unsigned char)0)
724
725#ifdef UCHAR_MAX
726# define PERL_UCHAR_MAX ((unsigned char)UCHAR_MAX)
27d4fb96 727#else
99abf803 728# ifdef MAXUCHAR
729# define PERL_UCHAR_MAX ((unsigned char)MAXUCHAR)
27d4fb96 730# else
99abf803 731# define PERL_UCHAR_MAX ((unsigned char)~(unsigned)0)
27d4fb96 732# endif
733#endif
99abf803 734
735/*
736 * CHAR_MIN and CHAR_MAX are not included here, as the (char) type may be
737 * ambiguous. It may be equivalent to (signed char) or (unsigned char)
738 * depending on local options. Until Configure detects this (or at least
739 * detects whether the "signed" keyword is available) the CHAR ranges
740 * will not be included. UCHAR functions normally.
741 * - kja
742 */
27d4fb96 743
99abf803 744#define PERL_USHORT_MIN ((unsigned short)0)
745
746#ifdef USHORT_MAX
747# define PERL_USHORT_MAX ((unsigned short)USHORT_MAX)
27d4fb96 748#else
99abf803 749# ifdef MAXUSHORT
750# define PERL_USHORT_MAX ((unsigned short)MAXUSHORT)
27d4fb96 751# else
99abf803 752# define PERL_USHORT_MAX ((unsigned short)~(unsigned)0)
27d4fb96 753# endif
754#endif
755
27d4fb96 756#ifdef SHORT_MAX
99abf803 757# define PERL_SHORT_MAX ((short)SHORT_MAX)
27d4fb96 758#else
759# ifdef MAXSHORT /* Often used in <values.h> */
99abf803 760# define PERL_SHORT_MAX ((short)MAXSHORT)
27d4fb96 761# else
99abf803 762# define PERL_SHORT_MAX ((short) (PERL_USHORT_MAX >> 1))
27d4fb96 763# endif
764#endif
765
766#ifdef SHORT_MIN
99abf803 767# define PERL_SHORT_MIN ((short)SHORT_MIN)
27d4fb96 768#else
769# ifdef MINSHORT
99abf803 770# define PERL_SHORT_MIN ((short)MINSHORT)
27d4fb96 771# else
772# define PERL_SHORT_MIN (-PERL_SHORT_MAX - ((3 & -1) == 3))
773# endif
774#endif
775
99abf803 776#ifdef UINT_MAX
777# define PERL_UINT_MAX ((unsigned int)UINT_MAX)
27d4fb96 778#else
99abf803 779# ifdef MAXUINT
780# define PERL_UINT_MAX ((unsigned int)MAXUINT)
27d4fb96 781# else
99abf803 782# define PERL_UINT_MAX (~(unsigned int)0)
27d4fb96 783# endif
784#endif
785
99abf803 786#define PERL_UINT_MIN ((unsigned int)0)
27d4fb96 787
788#ifdef INT_MAX
99abf803 789# define PERL_INT_MAX ((int)INT_MAX)
27d4fb96 790#else
791# ifdef MAXINT /* Often used in <values.h> */
99abf803 792# define PERL_INT_MAX ((int)MAXINT)
27d4fb96 793# else
99abf803 794# define PERL_INT_MAX ((int)(PERL_UINT_MAX >> 1))
27d4fb96 795# endif
796#endif
797
798#ifdef INT_MIN
99abf803 799# define PERL_INT_MIN ((int)INT_MIN)
27d4fb96 800#else
801# ifdef MININT
99abf803 802# define PERL_INT_MIN ((int)MININT)
27d4fb96 803# else
804# define PERL_INT_MIN (-PERL_INT_MAX - ((3 & -1) == 3))
805# endif
806#endif
807
99abf803 808#ifdef ULONG_MAX
809# define PERL_ULONG_MAX ((unsigned long)ULONG_MAX)
27d4fb96 810#else
99abf803 811# ifdef MAXULONG
812# define PERL_ULONG_MAX ((unsigned long)MAXULONG)
27d4fb96 813# else
99abf803 814# define PERL_ULONG_MAX (~(unsigned long)0)
27d4fb96 815# endif
816#endif
817
99abf803 818#define PERL_ULONG_MIN ((unsigned long)0L)
27d4fb96 819
760ac839 820#ifdef LONG_MAX
99abf803 821# define PERL_LONG_MAX ((long)LONG_MAX)
760ac839 822#else
823# ifdef MAXLONG /* Often used in <values.h> */
99abf803 824# define PERL_LONG_MAX ((long)MAXLONG)
760ac839 825# else
99abf803 826# define PERL_LONG_MAX ((long) (PERL_ULONG_MAX >> 1))
760ac839 827# endif
828#endif
829
830#ifdef LONG_MIN
99abf803 831# define PERL_LONG_MIN ((long)LONG_MIN)
760ac839 832#else
833# ifdef MINLONG
99abf803 834# define PERL_LONG_MIN ((long)MINLONG)
760ac839 835# else
27d4fb96 836# define PERL_LONG_MIN (-PERL_LONG_MAX - ((3 & -1) == 3))
760ac839 837# endif
838#endif
839
99abf803 840#ifdef HAS_QUAD
841
842# ifdef UQUAD_MAX
843# define PERL_UQUAD_MAX ((UV)UQUAD_MAX)
760ac839 844# else
99abf803 845# define PERL_UQUAD_MAX (~(UV)0)
760ac839 846# endif
760ac839 847
99abf803 848# define PERL_UQUAD_MIN ((UV)0)
27d4fb96 849
27d4fb96 850# ifdef QUAD_MAX
99abf803 851# define PERL_QUAD_MAX ((IV)QUAD_MAX)
27d4fb96 852# else
99abf803 853# define PERL_QUAD_MAX ((IV) (PERL_UQUAD_MAX >> 1))
27d4fb96 854# endif
855
856# ifdef QUAD_MIN
99abf803 857# define PERL_QUAD_MIN ((IV)QUAD_MIN)
27d4fb96 858# else
a6e633de 859# define PERL_QUAD_MIN (-PERL_QUAD_MAX - ((3 & -1) == 3))
27d4fb96 860# endif
861
79072805 862#endif
863
462e5cf6 864/* Digital UNIX defines CONTEXT when pthreads is in use */
865#ifdef CONTEXT
866# undef CONTEXT
867#endif
868
ee0007ab 869typedef MEM_SIZE STRLEN;
450a55e4 870
79072805 871typedef struct op OP;
872typedef struct cop COP;
873typedef struct unop UNOP;
874typedef struct binop BINOP;
875typedef struct listop LISTOP;
876typedef struct logop LOGOP;
877typedef struct condop CONDOP;
878typedef struct pmop PMOP;
879typedef struct svop SVOP;
880typedef struct gvop GVOP;
881typedef struct pvop PVOP;
79072805 882typedef struct loop LOOP;
883
884typedef struct Outrec Outrec;
93a17b20 885typedef struct interpreter PerlInterpreter;
79072805 886typedef struct ff FF;
79072805 887typedef struct sv SV;
888typedef struct av AV;
889typedef struct hv HV;
890typedef struct cv CV;
378cc40b 891typedef struct regexp REGEXP;
79072805 892typedef struct gp GP;
0c30d9ec 893typedef struct gv GV;
8990e307 894typedef struct io IO;
79072805 895typedef struct context CONTEXT;
896typedef struct block BLOCK;
897
898typedef struct magic MAGIC;
ed6116ce 899typedef struct xrv XRV;
79072805 900typedef struct xpv XPV;
901typedef struct xpviv XPVIV;
ff68c719 902typedef struct xpvuv XPVUV;
79072805 903typedef struct xpvnv XPVNV;
904typedef struct xpvmg XPVMG;
905typedef struct xpvlv XPVLV;
906typedef struct xpvav XPVAV;
907typedef struct xpvhv XPVHV;
908typedef struct xpvgv XPVGV;
909typedef struct xpvcv XPVCV;
910typedef struct xpvbm XPVBM;
911typedef struct xpvfm XPVFM;
8990e307 912typedef struct xpvio XPVIO;
79072805 913typedef struct mgvtbl MGVTBL;
914typedef union any ANY;
8d063cd8 915
378cc40b 916#include "handy.h"
a0d0e21e 917
16d20bd9 918typedef I32 (*filter_t) _((int, SV *, int));
919#define FILTER_READ(idx, sv, len) filter_read(idx, sv, len)
920#define FILTER_DATA(idx) (AvARRAY(rsfp_filters)[idx])
921#define FILTER_ISREADER(idx) (idx >= AvFILL(rsfp_filters))
922
748a9306 923#ifdef DOSISH
4633a7c4 924# if defined(OS2)
925# include "os2ish.h"
926# else
748a9306 927# include "dosish.h"
4633a7c4 928# endif
a0d0e21e 929#else
748a9306 930# if defined(VMS)
931# include "vmsish.h"
932# else
0c30d9ec 933# if defined(PLAN9)
934# include "./plan9/plan9ish.h"
935# else
936# include "unixish.h"
937# endif
748a9306 938# endif
939#endif
3fc1aec6 940
68dc0745 941#ifdef VMS
942# define STATUS_NATIVE statusvalue_vms
943# define STATUS_NATIVE_EXPORT \
944 ((I32)statusvalue_vms == -1 ? 44 : statusvalue_vms)
945# define STATUS_NATIVE_SET(n) \
946 STMT_START { \
947 statusvalue_vms = (n); \
948 if ((I32)statusvalue_vms == -1) \
949 statusvalue = -1; \
950 else if (statusvalue_vms & STS$M_SUCCESS) \
951 statusvalue = 0; \
952 else if ((statusvalue_vms & STS$M_SEVERITY) == 0) \
953 statusvalue = 1 << 8; \
954 else \
955 statusvalue = (statusvalue_vms & STS$M_SEVERITY) << 8; \
956 } STMT_END
957# define STATUS_POSIX statusvalue
958# ifdef VMSISH_STATUS
959# define STATUS_CURRENT (VMSISH_STATUS ? STATUS_NATIVE : STATUS_POSIX)
960# else
961# define STATUS_CURRENT STATUS_POSIX
962# endif
963# define STATUS_POSIX_SET(n) \
964 STMT_START { \
965 statusvalue = (n); \
966 if (statusvalue != -1) { \
967 statusvalue &= 0xFFFF; \
968 statusvalue_vms = statusvalue ? 44 : 1; \
969 } \
970 else statusvalue_vms = -1; \
971 } STMT_END
972# define STATUS_ALL_SUCCESS (statusvalue = 0, statusvalue_vms = 1)
973# define STATUS_ALL_FAILURE (statusvalue = 1, statusvalue_vms = 44)
974#else
975# define STATUS_NATIVE STATUS_POSIX
976# define STATUS_NATIVE_EXPORT STATUS_POSIX
977# define STATUS_NATIVE_SET STATUS_POSIX_SET
978# define STATUS_POSIX statusvalue
979# define STATUS_POSIX_SET(n) \
980 STMT_START { \
981 statusvalue = (n); \
982 if (statusvalue != -1) \
983 statusvalue &= 0xFFFF; \
984 } STMT_END
985# define STATUS_CURRENT STATUS_POSIX
986# define STATUS_ALL_SUCCESS (statusvalue = 0)
987# define STATUS_ALL_FAILURE (statusvalue = 1)
988#endif
989
3fc1aec6 990/* Some unistd.h's give a prototype for pause() even though
991 HAS_PAUSE ends up undefined. This causes the #define
992 below to be rejected by the compmiler. Sigh.
993*/
994#ifdef HAS_PAUSE
995#define Pause pause
996#else
997#define Pause() sleep((32767<<16)+32767)
748a9306 998#endif
999
1000#ifndef IOCPARM_LEN
1001# ifdef IOCPARM_MASK
1002 /* on BSDish systes we're safe */
1003# define IOCPARM_LEN(x) (((x) >> 16) & IOCPARM_MASK)
1004# else
1005 /* otherwise guess at what's safe */
1006# define IOCPARM_LEN(x) 256
1007# endif
a0d0e21e 1008#endif
1009
79072805 1010union any {
1011 void* any_ptr;
1012 I32 any_i32;
a0d0e21e 1013 IV any_iv;
85e6fe83 1014 long any_long;
a0d0e21e 1015 void (*any_dptr) _((void*));
79072805 1016};
1017
11343788 1018#ifdef USE_THREADS
1019#define ARGSproto struct thread *
1020#else
1021#define ARGSproto void
1022#endif /* USE_THREADS */
1023
5aabfad6 1024/* Work around some cygwin32 problems with importing global symbols */
1025#if defined(CYGWIN32) && defined(DLLIMPORT)
1026# include "cw32imp.h"
1027#endif
1028
378cc40b 1029#include "regexp.h"
79072805 1030#include "sv.h"
378cc40b 1031#include "util.h"
8d063cd8 1032#include "form.h"
79072805 1033#include "gv.h"
1034#include "cv.h"
1035#include "opcode.h"
1036#include "op.h"
1037#include "cop.h"
1038#include "av.h"
1039#include "hv.h"
1040#include "mg.h"
1041#include "scope.h"
8d063cd8 1042
4633a7c4 1043/* work around some libPW problems */
1044#ifdef DOINIT
1045EXT char Error[1];
1046#endif
1047
450a55e4 1048#if defined(iAPX286) || defined(M_I286) || defined(I80286)
a687059c 1049# define I286
1050#endif
1051
fe14fcc3 1052#if defined(htonl) && !defined(HAS_HTONL)
1053#define HAS_HTONL
ae986130 1054#endif
fe14fcc3 1055#if defined(htons) && !defined(HAS_HTONS)
1056#define HAS_HTONS
ae986130 1057#endif
fe14fcc3 1058#if defined(ntohl) && !defined(HAS_NTOHL)
1059#define HAS_NTOHL
ae986130 1060#endif
fe14fcc3 1061#if defined(ntohs) && !defined(HAS_NTOHS)
1062#define HAS_NTOHS
ae986130 1063#endif
fe14fcc3 1064#ifndef HAS_HTONL
d9d8d8de 1065#if (BYTEORDER & 0xffff) != 0x4321
fe14fcc3 1066#define HAS_HTONS
1067#define HAS_HTONL
1068#define HAS_NTOHS
1069#define HAS_NTOHL
a687059c 1070#define MYSWAP
1071#define htons my_swap
1072#define htonl my_htonl
1073#define ntohs my_swap
1074#define ntohl my_ntohl
1075#endif
1076#else
d9d8d8de 1077#if (BYTEORDER & 0xffff) == 0x4321
fe14fcc3 1078#undef HAS_HTONS
1079#undef HAS_HTONL
1080#undef HAS_NTOHS
1081#undef HAS_NTOHL
a687059c 1082#endif
1083#endif
1084
988174c1 1085/*
1086 * Little-endian byte order functions - 'v' for 'VAX', or 'reVerse'.
1087 * -DWS
1088 */
1089#if BYTEORDER != 0x1234
1090# define HAS_VTOHL
1091# define HAS_VTOHS
1092# define HAS_HTOVL
1093# define HAS_HTOVS
1094# if BYTEORDER == 0x4321
1095# define vtohl(x) ((((x)&0xFF)<<24) \
1096 +(((x)>>24)&0xFF) \
1097 +(((x)&0x0000FF00)<<8) \
1098 +(((x)&0x00FF0000)>>8) )
1099# define vtohs(x) ((((x)&0xFF)<<8) + (((x)>>8)&0xFF))
1100# define htovl(x) vtohl(x)
1101# define htovs(x) vtohs(x)
1102# endif
1103 /* otherwise default to functions in util.c */
1104#endif
1105
0f85fab0 1106#ifdef CASTNEGFLOAT
79072805 1107#define U_S(what) ((U16)(what))
0f85fab0 1108#define U_I(what) ((unsigned int)(what))
79072805 1109#define U_L(what) ((U32)(what))
0f85fab0 1110#else
a6e633de 1111# ifdef __cplusplus
1112 extern "C" {
1113# endif
a0d0e21e 1114U32 cast_ulong _((double));
a6e633de 1115# ifdef __cplusplus
1116 }
1117# endif
232e078e 1118#define U_S(what) ((U16)cast_ulong((double)(what)))
1119#define U_I(what) ((unsigned int)cast_ulong((double)(what)))
1120#define U_L(what) (cast_ulong((double)(what)))
ee0007ab 1121#endif
1122
ed6116ce 1123#ifdef CASTI32
1124#define I_32(what) ((I32)(what))
a0d0e21e 1125#define I_V(what) ((IV)(what))
5d94fbed 1126#define U_V(what) ((UV)(what))
ed6116ce 1127#else
a6e633de 1128# ifdef __cplusplus
1129 extern "C" {
1130# endif
a0d0e21e 1131I32 cast_i32 _((double));
a0d0e21e 1132IV cast_iv _((double));
5d94fbed 1133UV cast_uv _((double));
a6e633de 1134# ifdef __cplusplus
1135 }
1136# endif
1137#define I_32(what) (cast_i32((double)(what)))
1138#define I_V(what) (cast_iv((double)(what)))
5d94fbed 1139#define U_V(what) (cast_uv((double)(what)))
ed6116ce 1140#endif
1141
79072805 1142struct Outrec {
1143 I32 o_lines;
d9d8d8de 1144 char *o_str;
79072805 1145 U32 o_len;
8d063cd8 1146};
1147
352d5a3a 1148#ifndef MAXSYSFD
1149# define MAXSYSFD 2
1150#endif
ee0007ab 1151
f82b3d41 1152#ifndef TMPPATH
1153# define TMPPATH "/tmp/perl-eXXXXXX"
a0d0e21e 1154#endif
79072805 1155
1156#ifndef __cplusplus
a0d0e21e 1157Uid_t getuid _((void));
1158Uid_t geteuid _((void));
1159Gid_t getgid _((void));
1160Gid_t getegid _((void));
79072805 1161#endif
8d063cd8 1162
1163#ifdef DEBUGGING
0c30d9ec 1164#ifndef Perl_debug_log
760ac839 1165#define Perl_debug_log PerlIO_stderr()
0c30d9ec 1166#endif
d96024cf 1167#define YYDEBUG 1
79072805 1168#define DEB(a) a
1169#define DEBUG(a) if (debug) a
1170#define DEBUG_p(a) if (debug & 1) a
1171#define DEBUG_s(a) if (debug & 2) a
1172#define DEBUG_l(a) if (debug & 4) a
1173#define DEBUG_t(a) if (debug & 8) a
1174#define DEBUG_o(a) if (debug & 16) a
1175#define DEBUG_c(a) if (debug & 32) a
1176#define DEBUG_P(a) if (debug & 64) a
0c30d9ec 1177#define DEBUG_m(a) if (curinterp && debug & 128) a
79072805 1178#define DEBUG_f(a) if (debug & 256) a
1179#define DEBUG_r(a) if (debug & 512) a
1180#define DEBUG_x(a) if (debug & 1024) a
1181#define DEBUG_u(a) if (debug & 2048) a
1182#define DEBUG_L(a) if (debug & 4096) a
1183#define DEBUG_H(a) if (debug & 8192) a
1184#define DEBUG_X(a) if (debug & 16384) a
8990e307 1185#define DEBUG_D(a) if (debug & 32768) a
79072805 1186#else
1187#define DEB(a)
1188#define DEBUG(a)
1189#define DEBUG_p(a)
1190#define DEBUG_s(a)
1191#define DEBUG_l(a)
1192#define DEBUG_t(a)
1193#define DEBUG_o(a)
1194#define DEBUG_c(a)
1195#define DEBUG_P(a)
1196#define DEBUG_m(a)
1197#define DEBUG_f(a)
1198#define DEBUG_r(a)
1199#define DEBUG_x(a)
1200#define DEBUG_u(a)
1201#define DEBUG_L(a)
1202#define DEBUG_H(a)
1203#define DEBUG_X(a)
8990e307 1204#define DEBUG_D(a)
8d063cd8 1205#endif
fe14fcc3 1206#define YYMAXDEPTH 300
8d063cd8 1207
a6e633de 1208#ifndef assert /* <assert.h> might have been included somehow */
79072805 1209#define assert(what) DEB( { \
1210 if (!(what)) { \
463ee0b2 1211 croak("Assertion failed: file \"%s\", line %d", \
79072805 1212 __FILE__, __LINE__); \
1213 exit(1); \
1214 }})
a6e633de 1215#endif
8d063cd8 1216
450a55e4 1217struct ufuncs {
a0d0e21e 1218 I32 (*uf_val)_((IV, SV*));
1219 I32 (*uf_set)_((IV, SV*));
1220 IV uf_index;
450a55e4 1221};
1222
fe14fcc3 1223/* Fix these up for __STDC__ */
68dc0745 1224#ifndef DONT_DECLARE_STD
a0d0e21e 1225char *mktemp _((char*));
1226double atof _((const char*));
1227#endif
79072805 1228
352d5a3a 1229#ifndef STANDARD_C
fe14fcc3 1230/* All of these are in stdlib.h or time.h for ANSI C */
85e6fe83 1231Time_t time();
8d063cd8 1232struct tm *gmtime(), *localtime();
93a17b20 1233char *strchr(), *strrchr();
378cc40b 1234char *strcpy(), *strcat();
352d5a3a 1235#endif /* ! STANDARD_C */
8d063cd8 1236
79072805 1237
1238#ifdef I_MATH
1239# include <math.h>
1240#else
1241# ifdef __cplusplus
1242 extern "C" {
1243# endif
a0d0e21e 1244 double exp _((double));
a0d0e21e 1245 double log _((double));
c635e13b 1246 double log10 _((double));
a0d0e21e 1247 double sqrt _((double));
c635e13b 1248 double frexp _((double,int*));
1249 double ldexp _((double,int));
a0d0e21e 1250 double modf _((double,double*));
1251 double sin _((double));
1252 double cos _((double));
1253 double atan2 _((double,double));
1254 double pow _((double,double));
79072805 1255# ifdef __cplusplus
1256 };
1257# endif
1258#endif
1259
a0d0e21e 1260#ifndef __cplusplus
3fc1aec6 1261#ifdef __NeXT__ /* or whatever catches all NeXTs */
1262char *crypt (); /* Maybe more hosts will need the unprototyped version */
1263#else
a0d0e21e 1264char *crypt _((const char*, const char*));
3fc1aec6 1265#endif
68dc0745 1266#ifndef DONT_DECLARE_STD
1e422769 1267#ifndef getenv
a0d0e21e 1268char *getenv _((const char*));
1e422769 1269#endif
a0d0e21e 1270Off_t lseek _((int,Off_t,int));
68dc0745 1271#endif
a0d0e21e 1272char *getlogin _((void));
1273#endif
79072805 1274
16d20bd9 1275#ifdef UNLINK_ALL_VERSIONS /* Currently only makes sense for VMS */
378cc40b 1276#define UNLINK unlnk
a0d0e21e 1277I32 unlnk _((char*));
8d063cd8 1278#else
1279#define UNLINK unlink
1280#endif
a687059c 1281
fe14fcc3 1282#ifndef HAS_SETREUID
85e6fe83 1283# ifdef HAS_SETRESUID
1284# define setreuid(r,e) setresuid(r,e,(Uid_t)-1)
1285# define HAS_SETREUID
1286# endif
a687059c 1287#endif
fe14fcc3 1288#ifndef HAS_SETREGID
85e6fe83 1289# ifdef HAS_SETRESGID
1290# define setregid(r,e) setresgid(r,e,(Gid_t)-1)
1291# define HAS_SETREGID
1292# endif
a687059c 1293#endif
ee0007ab 1294
ff68c719 1295typedef Signal_t (*Sighandler_t) _((int));
1296
1297#ifdef HAS_SIGACTION
1298typedef struct sigaction Sigsave_t;
1299#else
1300typedef Sighandler_t Sigsave_t;
1301#endif
1302
ee0007ab 1303#define SCAN_DEF 0
1304#define SCAN_TR 1
1305#define SCAN_REPL 2
79072805 1306
1307#ifdef DEBUGGING
4633a7c4 1308# ifndef register
a0d0e21e 1309# define register
1310# endif
c07a80fd 1311# ifdef MYMALLOC
55497cff 1312# ifndef DEBUGGING_MSTATS
1313# define DEBUGGING_MSTATS
1314# endif
c07a80fd 1315# endif
a0d0e21e 1316# define PAD_SV(po) pad_sv(po)
79072805 1317#else
a0d0e21e 1318# define PAD_SV(po) curpad[po]
79072805 1319#endif
1320
1321/****************/
1322/* Truly global */
1323/****************/
1324
1325/* global state */
a0d0e21e 1326EXT PerlInterpreter * curinterp; /* currently running interpreter */
11343788 1327#ifdef USE_THREADS
0f15f207 1328EXT perl_key thr_key; /* For per-thread struct thread ptr */
12ca11f6 1329EXT perl_mutex sv_mutex; /* Mutex for allocating SVs in sv.c */
1330EXT perl_mutex malloc_mutex; /* Mutex for malloc */
1331EXT perl_mutex eval_mutex; /* Mutex for doeval */
1332EXT perl_cond eval_cond; /* Condition variable for doeval */
11343788 1333EXT struct thread * eval_owner; /* Owner thread for doeval */
1334EXT int nthreads; /* Number of threads currently */
12ca11f6 1335EXT perl_mutex nthreads_mutex; /* Mutex for nthreads */
1336EXT perl_cond nthreads_cond; /* Condition variable for nthreads */
0f15f207 1337#ifdef FAKE_THREADS
1338EXT struct thread * thr; /* Currently executing (fake) thread */
1339#endif
11343788 1340#endif /* USE_THREADS */
1341
0c30d9ec 1342/* VMS doesn't use environ array and NeXT has problems with crt0.o globals */
1343#if !defined(VMS) && !(defined(NeXT) && defined(__DYNAMIC__))
68dc0745 1344#ifndef DONT_DECLARE_STD
79072805 1345extern char ** environ; /* environment variables supplied via exec */
a0d0e21e 1346#endif
0c30d9ec 1347#else
1348# if defined(NeXT) && defined(__DYNAMIC__)
1349
1350# include <mach-o/dyld.h>
1351EXT char *** environ_pointer;
1352# define environ (*environ_pointer)
1353# endif
1354#endif /* environ processing */
1355
79072805 1356EXT int uid; /* current real user id */
1357EXT int euid; /* current effective user id */
1358EXT int gid; /* current real group id */
1359EXT int egid; /* current effective group id */
1360EXT bool nomemok; /* let malloc context handle nomem */
1361EXT U32 an; /* malloc sequence number */
463ee0b2 1362EXT U32 cop_seqmax; /* statement sequence number */
c07a80fd 1363EXT U16 op_seqmax; /* op sequence number */
8990e307 1364EXT U32 evalseq; /* eval sequence number */
463ee0b2 1365EXT U32 sub_generation; /* inc to force methods to be looked up again */
79072805 1366EXT char ** origenviron;
1367EXT U32 origalen;
44a8e56a 1368EXT HV * pidstatus; /* pid-to-status mappings for waitpid */
a0d0e21e 1369EXT U32 * profiledata;
84ea024a 1370EXT int maxo INIT(MAXO);/* Number of ops */
728e2803 1371EXT char * osname; /* operating system */
ff68c719 1372EXT char * sh_path INIT(SH_PATH); /* full path of shell */
79072805 1373
a0d0e21e 1374EXT XPV* xiv_arenaroot; /* list of allocated xiv areas */
1375EXT IV ** xiv_root; /* free xiv list--shared by interpreters */
8990e307 1376EXT double * xnv_root; /* free xnv list--shared by interpreters */
1377EXT XRV * xrv_root; /* free xrv list--shared by interpreters */
1378EXT XPV * xpv_root; /* free xpv list--shared by interpreters */
4633a7c4 1379EXT HE * he_root; /* free he list--shared by interpreters */
c07a80fd 1380EXT char * nice_chunk; /* a nice chunk of memory to reuse */
1381EXT U32 nice_chunk_size;/* how nice the chunk of memory is */
8990e307 1382
79072805 1383/* Stack for currently executing thread--context switch must handle this. */
1384EXT SV ** stack_base; /* stack->array_ary */
1385EXT SV ** stack_sp; /* stack pointer now */
1386EXT SV ** stack_max; /* stack->array_ary + stack->array_max */
1387
1388/* likewise for these */
1389
462e5cf6 1390#ifdef OP_IN_REGISTER
1391EXT OP * opsave; /* save current op register across longjmps */
1392#else
1393EXT OP * op; /* current op--when not in a global register */
1394#endif
79072805 1395EXT I32 * scopestack; /* blocks we've entered */
1396EXT I32 scopestack_ix;
1397EXT I32 scopestack_max;
1398
1399EXT ANY* savestack; /* to save non-local values on */
1400EXT I32 savestack_ix;
1401EXT I32 savestack_max;
1402
1403EXT OP ** retstack; /* returns we've pushed */
1404EXT I32 retstack_ix;
1405EXT I32 retstack_max;
1406
1407EXT I32 * markstack; /* stackmarks we're remembering */
1408EXT I32 * markstack_ptr; /* stackmarks we're remembering */
1409EXT I32 * markstack_max; /* stackmarks we're remembering */
1410
1411EXT SV ** curpad;
1412
1413/* temp space */
1414EXT SV * Sv;
1415EXT XPV * Xpv;
79072805 1416EXT char tokenbuf[256];
1417EXT struct stat statbuf;
ecfc5424 1418#ifdef HAS_TIMES
79072805 1419EXT struct tms timesbuf;
1420#endif
463ee0b2 1421EXT STRLEN na; /* for use in SvPV when length is Not Applicable */
79072805 1422
1423/* for tmp use in stupid debuggers */
1424EXT int * di;
1425EXT short * ds;
1426EXT char * dc;
1427
1428/* handy constants */
71be2cbc 1429EXTCONST char * Yes INIT("1");
1430EXTCONST char * No INIT("");
1431EXTCONST char * hexdigit INIT("0123456789abcdef0123456789ABCDEFx");
1432EXTCONST char * patleave INIT("\\.^$@dDwWsSbB+*?|()-nrtfeaxc0123456789[{]}");
1433EXTCONST char * vert INIT("|");
79072805 1434
71be2cbc 1435EXTCONST char warn_uninit[]
a0d0e21e 1436 INIT("Use of uninitialized value");
71be2cbc 1437EXTCONST char warn_nosemi[]
463ee0b2 1438 INIT("Semicolon seems to be missing");
71be2cbc 1439EXTCONST char warn_reserved[]
463ee0b2 1440 INIT("Unquoted string \"%s\" may clash with future reserved word");
71be2cbc 1441EXTCONST char warn_nl[]
93a17b20 1442 INIT("Unsuccessful %s on filename containing newline");
71be2cbc 1443EXTCONST char no_wrongref[]
a0d0e21e 1444 INIT("Can't use %s ref as %s ref");
71be2cbc 1445EXTCONST char no_symref[]
748a9306 1446 INIT("Can't use string (\"%.32s\") as %s ref while \"strict refs\" in use");
71be2cbc 1447EXTCONST char no_usym[]
8990e307 1448 INIT("Can't use an undefined value as %s reference");
71be2cbc 1449EXTCONST char no_aelem[]
93a17b20 1450 INIT("Modification of non-creatable array value attempted, subscript %d");
71be2cbc 1451EXTCONST char no_helem[]
93a17b20 1452 INIT("Modification of non-creatable hash value attempted, subscript \"%s\"");
71be2cbc 1453EXTCONST char no_modify[]
93a17b20 1454 INIT("Modification of a read-only value attempted");
71be2cbc 1455EXTCONST char no_mem[]
93a17b20 1456 INIT("Out of memory!\n");
71be2cbc 1457EXTCONST char no_security[]
463ee0b2 1458 INIT("Insecure dependency in %s%s");
71be2cbc 1459EXTCONST char no_sock_func[]
93a17b20 1460 INIT("Unsupported socket function \"%s\" called");
71be2cbc 1461EXTCONST char no_dir_func[]
93a17b20 1462 INIT("Unsupported directory function \"%s\" called");
71be2cbc 1463EXTCONST char no_func[]
93a17b20 1464 INIT("The %s function is unimplemented");
71be2cbc 1465EXTCONST char no_myglob[]
748a9306 1466 INIT("\"my\" variable %s can't be in a package");
93a17b20 1467
79072805 1468EXT SV sv_undef;
1469EXT SV sv_no;
1470EXT SV sv_yes;
1471#ifdef CSH
1472 EXT char * cshname INIT(CSH);
1473 EXT I32 cshlen;
1474#endif
1475
1476#ifdef DOINIT
8e07c86e 1477EXT char *sig_name[] = { SIG_NAME };
1478EXT int sig_num[] = { SIG_NUM };
0c30d9ec 1479EXT SV * psig_ptr[sizeof(sig_num)/sizeof(*sig_num)];
1480EXT SV * psig_name[sizeof(sig_num)/sizeof(*sig_num)];
79072805 1481#else
1482EXT char *sig_name[];
8e07c86e 1483EXT int sig_num[];
0c30d9ec 1484EXT SV * psig_ptr[];
1485EXT SV * psig_name[];
79072805 1486#endif
1487
bbce6d69 1488/* fast case folding tables */
1489
79072805 1490#ifdef DOINIT
36477c24 1491EXTCONST unsigned char fold[] = {
79072805 1492 0, 1, 2, 3, 4, 5, 6, 7,
1493 8, 9, 10, 11, 12, 13, 14, 15,
1494 16, 17, 18, 19, 20, 21, 22, 23,
1495 24, 25, 26, 27, 28, 29, 30, 31,
1496 32, 33, 34, 35, 36, 37, 38, 39,
1497 40, 41, 42, 43, 44, 45, 46, 47,
1498 48, 49, 50, 51, 52, 53, 54, 55,
1499 56, 57, 58, 59, 60, 61, 62, 63,
1500 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1501 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1502 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1503 'x', 'y', 'z', 91, 92, 93, 94, 95,
1504 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1505 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1506 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1507 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1508 128, 129, 130, 131, 132, 133, 134, 135,
1509 136, 137, 138, 139, 140, 141, 142, 143,
1510 144, 145, 146, 147, 148, 149, 150, 151,
1511 152, 153, 154, 155, 156, 157, 158, 159,
1512 160, 161, 162, 163, 164, 165, 166, 167,
1513 168, 169, 170, 171, 172, 173, 174, 175,
1514 176, 177, 178, 179, 180, 181, 182, 183,
1515 184, 185, 186, 187, 188, 189, 190, 191,
1516 192, 193, 194, 195, 196, 197, 198, 199,
1517 200, 201, 202, 203, 204, 205, 206, 207,
1518 208, 209, 210, 211, 212, 213, 214, 215,
1519 216, 217, 218, 219, 220, 221, 222, 223,
1520 224, 225, 226, 227, 228, 229, 230, 231,
1521 232, 233, 234, 235, 236, 237, 238, 239,
1522 240, 241, 242, 243, 244, 245, 246, 247,
1523 248, 249, 250, 251, 252, 253, 254, 255
1524};
1525#else
71be2cbc 1526EXTCONST unsigned char fold[];
79072805 1527#endif
1528
1529#ifdef DOINIT
bbce6d69 1530EXT unsigned char fold_locale[] = {
79072805 1531 0, 1, 2, 3, 4, 5, 6, 7,
1532 8, 9, 10, 11, 12, 13, 14, 15,
1533 16, 17, 18, 19, 20, 21, 22, 23,
1534 24, 25, 26, 27, 28, 29, 30, 31,
1535 32, 33, 34, 35, 36, 37, 38, 39,
1536 40, 41, 42, 43, 44, 45, 46, 47,
1537 48, 49, 50, 51, 52, 53, 54, 55,
1538 56, 57, 58, 59, 60, 61, 62, 63,
1539 64, 'a', 'b', 'c', 'd', 'e', 'f', 'g',
1540 'h', 'i', 'j', 'k', 'l', 'm', 'n', 'o',
1541 'p', 'q', 'r', 's', 't', 'u', 'v', 'w',
1542 'x', 'y', 'z', 91, 92, 93, 94, 95,
1543 96, 'A', 'B', 'C', 'D', 'E', 'F', 'G',
1544 'H', 'I', 'J', 'K', 'L', 'M', 'N', 'O',
1545 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W',
1546 'X', 'Y', 'Z', 123, 124, 125, 126, 127,
1547 128, 129, 130, 131, 132, 133, 134, 135,
1548 136, 137, 138, 139, 140, 141, 142, 143,
1549 144, 145, 146, 147, 148, 149, 150, 151,
1550 152, 153, 154, 155, 156, 157, 158, 159,
1551 160, 161, 162, 163, 164, 165, 166, 167,
1552 168, 169, 170, 171, 172, 173, 174, 175,
1553 176, 177, 178, 179, 180, 181, 182, 183,
1554 184, 185, 186, 187, 188, 189, 190, 191,
1555 192, 193, 194, 195, 196, 197, 198, 199,
1556 200, 201, 202, 203, 204, 205, 206, 207,
1557 208, 209, 210, 211, 212, 213, 214, 215,
1558 216, 217, 218, 219, 220, 221, 222, 223,
1559 224, 225, 226, 227, 228, 229, 230, 231,
1560 232, 233, 234, 235, 236, 237, 238, 239,
1561 240, 241, 242, 243, 244, 245, 246, 247,
1562 248, 249, 250, 251, 252, 253, 254, 255
1563};
1564#else
bbce6d69 1565EXT unsigned char fold_locale[];
79072805 1566#endif
1567
1568#ifdef DOINIT
71be2cbc 1569EXTCONST unsigned char freq[] = { /* letter frequencies for mixed English/C */
79072805 1570 1, 2, 84, 151, 154, 155, 156, 157,
1571 165, 246, 250, 3, 158, 7, 18, 29,
1572 40, 51, 62, 73, 85, 96, 107, 118,
1573 129, 140, 147, 148, 149, 150, 152, 153,
1574 255, 182, 224, 205, 174, 176, 180, 217,
1575 233, 232, 236, 187, 235, 228, 234, 226,
1576 222, 219, 211, 195, 188, 193, 185, 184,
1577 191, 183, 201, 229, 181, 220, 194, 162,
1578 163, 208, 186, 202, 200, 218, 198, 179,
1579 178, 214, 166, 170, 207, 199, 209, 206,
1580 204, 160, 212, 216, 215, 192, 175, 173,
1581 243, 172, 161, 190, 203, 189, 164, 230,
1582 167, 248, 227, 244, 242, 255, 241, 231,
1583 240, 253, 169, 210, 245, 237, 249, 247,
1584 239, 168, 252, 251, 254, 238, 223, 221,
1585 213, 225, 177, 197, 171, 196, 159, 4,
1586 5, 6, 8, 9, 10, 11, 12, 13,
1587 14, 15, 16, 17, 19, 20, 21, 22,
1588 23, 24, 25, 26, 27, 28, 30, 31,
1589 32, 33, 34, 35, 36, 37, 38, 39,
1590 41, 42, 43, 44, 45, 46, 47, 48,
1591 49, 50, 52, 53, 54, 55, 56, 57,
1592 58, 59, 60, 61, 63, 64, 65, 66,
1593 67, 68, 69, 70, 71, 72, 74, 75,
1594 76, 77, 78, 79, 80, 81, 82, 83,
1595 86, 87, 88, 89, 90, 91, 92, 93,
1596 94, 95, 97, 98, 99, 100, 101, 102,
1597 103, 104, 105, 106, 108, 109, 110, 111,
1598 112, 113, 114, 115, 116, 117, 119, 120,
1599 121, 122, 123, 124, 125, 126, 127, 128,
1600 130, 131, 132, 133, 134, 135, 136, 137,
1601 138, 139, 141, 142, 143, 144, 145, 146
1602};
1603#else
71be2cbc 1604EXTCONST unsigned char freq[];
79072805 1605#endif
1606
8990e307 1607#ifdef DEBUGGING
1608#ifdef DOINIT
71be2cbc 1609EXTCONST char* block_type[] = {
8990e307 1610 "NULL",
1611 "SUB",
1612 "EVAL",
1613 "LOOP",
1614 "SUBST",
1615 "BLOCK",
1616};
1617#else
71be2cbc 1618EXTCONST char* block_type[];
8990e307 1619#endif
1620#endif
1621
79072805 1622/*****************************************************************************/
1623/* This lexer/parser stuff is currently global since yacc is hard to reenter */
1624/*****************************************************************************/
8990e307 1625/* XXX This needs to be revisited, since BEGIN makes yacc re-enter... */
79072805 1626
a0d0e21e 1627#include "perly.h"
1628
79072805 1629typedef enum {
1630 XOPERATOR,
1631 XTERM,
79072805 1632 XREF,
8990e307 1633 XSTATE,
a0d0e21e 1634 XBLOCK,
1635 XTERMBLOCK
79072805 1636} expectation;
1637
a0d0e21e 1638EXT U32 lex_state; /* next token is determined */
1639EXT U32 lex_defer; /* state after determined token */
1640EXT expectation lex_expect; /* expect after determined token */
1641EXT I32 lex_brackets; /* bracket count */
1642EXT I32 lex_formbrack; /* bracket count at outer format level */
1643EXT I32 lex_fakebrack; /* outer bracket is mere delimiter */
1644EXT I32 lex_casemods; /* casemod count */
1645EXT I32 lex_dojoin; /* doing an array interpolation */
1646EXT I32 lex_starts; /* how many interps done on level */
1647EXT SV * lex_stuff; /* runtime pattern from m// or s/// */
1648EXT SV * lex_repl; /* runtime replacement from s/// */
1649EXT OP * lex_op; /* extra info to pass back on op */
1650EXT OP * lex_inpat; /* in pattern $) and $| are special */
1651EXT I32 lex_inwhat; /* what kind of quoting are we in */
1652EXT char * lex_brackstack; /* what kind of brackets to pop */
1653EXT char * lex_casestack; /* what kind of case mods in effect */
1654
1655/* What we know when we're in LEX_KNOWNEXT state. */
1656EXT YYSTYPE nextval[5]; /* value of next token, if any */
1657EXT I32 nexttype[5]; /* type of next token */
1658EXT I32 nexttoke;
1659
760ac839 1660EXT PerlIO * VOL rsfp INIT(Nullfp);
79072805 1661EXT SV * linestr;
1662EXT char * bufptr;
1663EXT char * oldbufptr;
1664EXT char * oldoldbufptr;
1665EXT char * bufend;
8990e307 1666EXT expectation expect INIT(XSTATE); /* how to interpret ambiguous tokens */
16d20bd9 1667EXT AV * rsfp_filters;
79072805 1668
1669EXT I32 multi_start; /* 1st line of multi-line string */
1670EXT I32 multi_end; /* last line of multi-line string */
1671EXT I32 multi_open; /* delimiter of said string */
1672EXT I32 multi_close; /* delimiter of said string */
1673
1674EXT GV * scrgv;
1675EXT I32 error_count; /* how many errors so far, max 10 */
1676EXT I32 subline; /* line this subroutine began on */
1677EXT SV * subname; /* name of current subroutine */
1678
748a9306 1679EXT CV * compcv; /* currently compiling subroutine */
93a17b20 1680EXT AV * comppad; /* storage for lexically scoped temporaries */
8990e307 1681EXT AV * comppad_name; /* variable names for "my" variables */
1682EXT I32 comppad_name_fill;/* last "introduced" variable offset */
0c30d9ec 1683EXT I32 comppad_name_floor;/* start of vars in innermost block */
8990e307 1684EXT I32 min_intro_pending;/* start of vars to introduce */
1685EXT I32 max_intro_pending;/* end of vars to introduce */
79072805 1686EXT I32 padix; /* max used index in current "register" pad */
a0d0e21e 1687EXT I32 padix_floor; /* how low may inner block reset padix */
748a9306 1688EXT I32 pad_reset_pending; /* reset pad on next attempted alloc */
79072805 1689EXT COP compiling;
1690
79072805 1691EXT I32 thisexpr; /* name id for nothing_in_common() */
1692EXT char * last_uni; /* position of last named-unary operator */
1693EXT char * last_lop; /* position of last list operator */
8990e307 1694EXT OPCODE last_lop_op; /* last list operator */
93a17b20 1695EXT bool in_my; /* we're compiling a "my" declaration */
c750a3ec 1696EXT HV * in_my_stash; /* declared class of this "my" declaration */
79072805 1697#ifdef FCRYPT
1698EXT I32 cryptseen; /* has fast crypt() been initialized? */
1699#endif
1700
85e6fe83 1701EXT U32 hints; /* various compilation flags */
1702
1703 /* Note: the lowest 8 bits are reserved for
1704 stuffing into op->op_private */
1705#define HINT_INTEGER 0x00000001
1706#define HINT_STRICT_REFS 0x00000002
1707
1708#define HINT_BLOCK_SCOPE 0x00000100
1709#define HINT_STRICT_SUBS 0x00000200
1710#define HINT_STRICT_VARS 0x00000400
bbce6d69 1711#define HINT_LOCALE 0x00000800
85e6fe83 1712
79072805 1713/**************************************************************************/
1714/* This regexp stuff is global since it always happens within 1 expr eval */
1715/**************************************************************************/
1716
1717EXT char * regprecomp; /* uncompiled string. */
1718EXT char * regparse; /* Input-scan pointer. */
1719EXT char * regxend; /* End of input for compile */
1720EXT I32 regnpar; /* () count. */
1721EXT char * regcode; /* Code-emit pointer; &regdummy = don't. */
1722EXT I32 regsize; /* Code size. */
a0d0e21e 1723EXT I32 regnaughty; /* How bad is this pattern? */
79072805 1724EXT I32 regsawback; /* Did we see \1, ...? */
1725
1726EXT char * reginput; /* String-input pointer. */
79072805 1727EXT char * regbol; /* Beginning of input, for ^ check. */
1728EXT char * regeol; /* End of input, for $ check. */
1729EXT char ** regstartp; /* Pointer to startp array. */
1730EXT char ** regendp; /* Ditto for endp. */
a0d0e21e 1731EXT U32 * reglastparen; /* Similarly for lastparen. */
79072805 1732EXT char * regtill; /* How far we are required to go. */
a0d0e21e 1733EXT U16 regflags; /* are we folding, multilining? */
1734EXT char regprev; /* char before regbol, \n if none */
79072805 1735
760ac839 1736EXT bool do_undump; /* -u or dump seen? */
1737EXT VOL U32 debug;
1738
79072805 1739/***********************************************/
1740/* Global only to current interpreter instance */
1741/***********************************************/
1742
8990e307 1743#ifdef MULTIPLICITY
79072805 1744#define IEXT
1745#define IINIT(x)
1746struct interpreter {
1747#else
1748#define IEXT EXT
1749#define IINIT(x) INIT(x)
1750#endif
1751
1752/* pseudo environmental stuff */
1753IEXT int Iorigargc;
1754IEXT char ** Iorigargv;
1755IEXT GV * Ienvgv;
1756IEXT GV * Isiggv;
1757IEXT GV * Iincgv;
1758IEXT char * Iorigfilename;
748a9306 1759IEXT SV * Idiehook;
1760IEXT SV * Iwarnhook;
1761IEXT SV * Iparsehook;
79072805 1762
c07a80fd 1763/* Various states of an input record separator SV (rs, nrs) */
1764#define RsSNARF(sv) (! SvOK(sv))
1765#define RsSIMPLE(sv) (SvOK(sv) && SvCUR(sv))
1766#define RsPARA(sv) (SvOK(sv) && ! SvCUR(sv))
1767
79072805 1768/* switches */
1769IEXT char * Icddir;
1770IEXT bool Iminus_c;
a5f75d66 1771IEXT char Ipatchlevel[10];
728e2803 1772IEXT char ** Ilocalpatches;
c07a80fd 1773IEXT SV * Inrs;
2304df62 1774IEXT char * Isplitstr IINIT(" ");
79072805 1775IEXT bool Ipreprocess;
1776IEXT bool Iminus_n;
1777IEXT bool Iminus_p;
1778IEXT bool Iminus_l;
1779IEXT bool Iminus_a;
2304df62 1780IEXT bool Iminus_F;
79072805 1781IEXT bool Idoswitches;
1782IEXT bool Idowarn;
1783IEXT bool Idoextract;
79072805 1784IEXT bool Isawampersand; /* must save all match strings */
1785IEXT bool Isawstudy; /* do fbm_instr on all strings */
79072805 1786IEXT bool Isawvec;
1787IEXT bool Iunsafe;
79072805 1788IEXT char * Iinplace;
1789IEXT char * Ie_tmpname;
760ac839 1790IEXT PerlIO * Ie_fp;
79072805 1791IEXT U32 Iperldb;
748a9306 1792 /* This value may be raised by extensions for testing purposes */
8ebc5c01 1793IEXT int Iperl_destruct_level IINIT(0); /* 0=none, 1=full, 2=full with checks */
79072805 1794
1795/* magical thingies */
85e6fe83 1796IEXT Time_t Ibasetime; /* $^T */
79072805 1797IEXT SV * Iformfeed; /* $^L */
1798IEXT char * Ichopset IINIT(" \n-"); /* $: */
c07a80fd 1799IEXT SV * Irs; /* $/ */
79072805 1800IEXT char * Iofs; /* $, */
8990e307 1801IEXT STRLEN Iofslen;
79072805 1802IEXT char * Iors; /* $\ */
8990e307 1803IEXT STRLEN Iorslen;
79072805 1804IEXT char * Iofmt; /* $# */
1805IEXT I32 Imaxsysfd IINIT(MAXSYSFD); /* top fd to pass to subprocesses */
f86702cc 1806IEXT int Imultiline; /* $*--do strings hold >1 line? */
91e9c03f 1807IEXT I32 Istatusvalue; /* $? */
f86702cc 1808#ifdef VMS
ff0cee69 1809IEXT U32 Istatusvalue_vms;
f86702cc 1810#endif
79072805 1811
1812IEXT struct stat Istatcache; /* _ */
1813IEXT GV * Istatgv;
1814IEXT SV * Istatname IINIT(Nullsv);
1815
1816/* shortcuts to various I/O objects */
1817IEXT GV * Istdingv;
1818IEXT GV * Ilast_in_gv;
1819IEXT GV * Idefgv;
1820IEXT GV * Iargvgv;
1821IEXT GV * Idefoutgv;
79072805 1822IEXT GV * Iargvoutgv;
1823
1824/* shortcuts to regexp stuff */
1825IEXT GV * Ileftgv;
1826IEXT GV * Iampergv;
1827IEXT GV * Irightgv;
1828IEXT PMOP * Icurpm; /* what to do \ interps from */
79072805 1829IEXT I32 * Iscreamfirst;
1830IEXT I32 * Iscreamnext;
1831IEXT I32 Imaxscream IINIT(-1);
1832IEXT SV * Ilastscream;
1833
4633a7c4 1834/* shortcuts to misc objects */
1835IEXT GV * Ierrgv;
1836
79072805 1837/* shortcuts to debugging objects */
1838IEXT GV * IDBgv;
1839IEXT GV * IDBline;
1840IEXT GV * IDBsub;
1841IEXT SV * IDBsingle;
1842IEXT SV * IDBtrace;
1843IEXT SV * IDBsignal;
1844IEXT AV * Ilineary; /* lines of script for debugger */
1845IEXT AV * Idbargs; /* args to call listed by caller function */
1846
1847/* symbol tables */
1848IEXT HV * Idefstash; /* main symbol table */
1849IEXT HV * Icurstash; /* symbol table for current package */
1850IEXT HV * Idebstash; /* symbol table for perldb package */
1851IEXT SV * Icurstname; /* name of current package */
93a17b20 1852IEXT AV * Ibeginav; /* names of BEGIN subroutines */
1853IEXT AV * Iendav; /* names of END subroutines */
c750a3ec 1854IEXT AV * Irestartav; /* names of RESTART subroutines */
0c30d9ec 1855IEXT HV * Istrtab; /* shared string table */
79072805 1856
1857/* memory management */
79072805 1858IEXT SV ** Itmps_stack;
1859IEXT I32 Itmps_ix IINIT(-1);
1860IEXT I32 Itmps_floor IINIT(-1);
8990e307 1861IEXT I32 Itmps_max;
1862IEXT I32 Isv_count; /* how many SV* are currently allocated */
a0d0e21e 1863IEXT I32 Isv_objcount; /* how many objects are currently allocated */
8990e307 1864IEXT SV* Isv_root; /* storage for SVs belonging to interp */
1865IEXT SV* Isv_arenaroot; /* list of areas for garbage collection */
79072805 1866
1867/* funky return mechanisms */
1868IEXT I32 Ilastspbase;
1869IEXT I32 Ilastsize;
1870IEXT int Iforkprocess; /* so do_open |- can return proc# */
1871
1872/* subprocess state */
1873IEXT AV * Ifdpid; /* keep fd-to-pid mappings for my_popen */
79072805 1874
1875/* internal state */
463ee0b2 1876IEXT VOL int Iin_eval; /* trap "fatal" errors? */
1877IEXT OP * Irestartop; /* Are we propagating an error from croak? */
79072805 1878IEXT int Idelaymagic; /* ($<,$>) = ... */
2304df62 1879IEXT bool Idirty; /* In the middle of tearing things down? */
748a9306 1880IEXT U8 Ilocalizing; /* are we processing a local() list? */
79072805 1881IEXT bool Itainted; /* using variables controlled by $< */
463ee0b2 1882IEXT bool Itainting; /* doing taint checks */
e50aee73 1883IEXT char * Iop_mask IINIT(NULL); /* masked operations for safe evals */
79072805 1884
1885/* trace state */
1886IEXT I32 Idlevel;
1887IEXT I32 Idlmax IINIT(128);
1888IEXT char * Idebname;
1889IEXT char * Idebdelim;
1890
1891/* current interpreter roots */
748a9306 1892IEXT CV * Imain_cv;
463ee0b2 1893IEXT OP * Imain_root;
1894IEXT OP * Imain_start;
1895IEXT OP * Ieval_root;
1896IEXT OP * Ieval_start;
79072805 1897
1898/* runtime control stuff */
1899IEXT COP * VOL Icurcop IINIT(&compiling);
0c30d9ec 1900IEXT COP * Icurcopdb IINIT(NULL);
79072805 1901IEXT line_t Icopline IINIT(NOLINE);
1902IEXT CONTEXT * Icxstack;
1903IEXT I32 Icxstack_ix IINIT(-1);
1904IEXT I32 Icxstack_max IINIT(128);
54310121 1905IEXT JMPENV Istart_env; /* empty startup sigjmp() environment */
1906IEXT JMPENV * Itop_env; /* ptr. to current sigjmp() environment */
a0d0e21e 1907IEXT I32 Irunlevel;
79072805 1908
1909/* stack stuff */
0c30d9ec 1910IEXT AV * Icurstack; /* THE STACK */
79072805 1911IEXT AV * Imainstack; /* the stack when nothing funny is happening */
0f15f207 1912#if 0
79072805 1913IEXT SV ** Imystack_base; /* stack->array_ary */
1914IEXT SV ** Imystack_sp; /* stack pointer now */
1915IEXT SV ** Imystack_max; /* stack->array_ary + stack->array_max */
0f15f207 1916#endif
79072805 1917
1918/* format accumulators */
463ee0b2 1919IEXT SV * Iformtarget;
1920IEXT SV * Ibodytarget;
1921IEXT SV * Itoptarget;
79072805 1922
1923/* statics moved here for shared library purposes */
93a17b20 1924IEXT SV Istrchop; /* return value from chop */
79072805 1925IEXT int Ifilemode; /* so nextargv() can preserve mode */
1926IEXT int Ilastfd; /* what to preserve mode on */
1927IEXT char * Ioldname; /* what to preserve mode on */
1928IEXT char ** IArgv; /* stuff to free from do_aexec, vfork safe */
1929IEXT char * ICmd; /* stuff to free from do_aexec, vfork safe */
1930IEXT OP * Isortcop; /* user defined sort routine */
1931IEXT HV * Isortstash; /* which is in some package or other */
1932IEXT GV * Ifirstgv; /* $a */
1933IEXT GV * Isecondgv; /* $b */
1934IEXT AV * Isortstack; /* temp stack during pp_sort() */
1935IEXT AV * Isignalstack; /* temp stack during sighandler() */
1936IEXT SV * Imystrk; /* temp key string for do_each() */
1937IEXT I32 Idumplvl; /* indentation level on syntax tree dump */
79072805 1938IEXT PMOP * Ioldlastpm; /* for saving regexp context during debugger */
1939IEXT I32 Igensym; /* next symbol for getsym() to define */
1940IEXT bool Ipreambled;
3c81428c 1941IEXT AV * Ipreambleav;
79072805 1942IEXT int Ilaststatval IINIT(-1);
1943IEXT I32 Ilaststype IINIT(OP_STAT);
46fc3d4c 1944IEXT SV * Imess_sv;
79072805 1945
1946#undef IEXT
1947#undef IINIT
1948
8990e307 1949#ifdef MULTIPLICITY
79072805 1950};
1951#else
1952struct interpreter {
1953 char broiled;
1954};
1955#endif
1956
11343788 1957#include "thread.h"
79072805 1958#include "pp.h"
1959
1960#ifdef __cplusplus
1961extern "C" {
1962#endif
1963
1964#include "proto.h"
1965
a0d0e21e 1966#ifdef EMBED
1967#define Perl_sv_setptrobj(rv,ptr,name) Perl_sv_setref_iv(rv,name,(IV)ptr)
1968#define Perl_sv_setptrref(rv,ptr) Perl_sv_setref_iv(rv,Nullch,(IV)ptr)
1969#else
1970#define sv_setptrobj(rv,ptr,name) sv_setref_iv(rv,name,(IV)ptr)
1971#define sv_setptrref(rv,ptr) sv_setref_iv(rv,Nullch,(IV)ptr)
1972#endif
1973
79072805 1974#ifdef __cplusplus
1975};
1976#endif
1977
93a17b20 1978/* The following must follow proto.h */
79072805 1979
1980#ifdef DOINIT
bbce6d69 1981
4633a7c4 1982EXT MGVTBL vtbl_sv = {magic_get,
463ee0b2 1983 magic_set,
1984 magic_len,
1985 0, 0};
4633a7c4 1986EXT MGVTBL vtbl_env = {0, 0, 0, 0, 0};
1987EXT MGVTBL vtbl_envelem = {0, magic_setenv,
85e6fe83 1988 0, magic_clearenv,
1989 0};
4633a7c4 1990EXT MGVTBL vtbl_sig = {0, 0, 0, 0, 0};
0c30d9ec 1991EXT MGVTBL vtbl_sigelem = {magic_getsig,
1992 magic_setsig,
1993 0, magic_clearsig,
1994 0};
4633a7c4 1995EXT MGVTBL vtbl_pack = {0, 0, 0, magic_wipepack,
a0d0e21e 1996 0};
4633a7c4 1997EXT MGVTBL vtbl_packelem = {magic_getpack,
463ee0b2 1998 magic_setpack,
1999 0, magic_clearpack,
2000 0};
4633a7c4 2001EXT MGVTBL vtbl_dbline = {0, magic_setdbline,
463ee0b2 2002 0, 0, 0};
4633a7c4 2003EXT MGVTBL vtbl_isa = {0, magic_setisa,
463ee0b2 2004 0, 0, 0};
4633a7c4 2005EXT MGVTBL vtbl_isaelem = {0, magic_setisa,
463ee0b2 2006 0, 0, 0};
4633a7c4 2007EXT MGVTBL vtbl_arylen = {magic_getarylen,
463ee0b2 2008 magic_setarylen,
2009 0, 0, 0};
4633a7c4 2010EXT MGVTBL vtbl_glob = {magic_getglob,
463ee0b2 2011 magic_setglob,
2012 0, 0, 0};
4633a7c4 2013EXT MGVTBL vtbl_mglob = {0, magic_setmglob,
463ee0b2 2014 0, 0, 0};
99abf803 2015EXT MGVTBL vtbl_nkeys = {0, magic_setnkeys,
2016 0, 0, 0};
4633a7c4 2017EXT MGVTBL vtbl_taint = {magic_gettaint,magic_settaint,
463ee0b2 2018 0, 0, 0};
4633a7c4 2019EXT MGVTBL vtbl_substr = {0, magic_setsubstr,
463ee0b2 2020 0, 0, 0};
4633a7c4 2021EXT MGVTBL vtbl_vec = {0, magic_setvec,
463ee0b2 2022 0, 0, 0};
4633a7c4 2023EXT MGVTBL vtbl_pos = {magic_getpos,
a0d0e21e 2024 magic_setpos,
2025 0, 0, 0};
4633a7c4 2026EXT MGVTBL vtbl_bm = {0, magic_setbm,
463ee0b2 2027 0, 0, 0};
55497cff 2028EXT MGVTBL vtbl_fm = {0, magic_setfm,
2029 0, 0, 0};
4633a7c4 2030EXT MGVTBL vtbl_uvar = {magic_getuvar,
463ee0b2 2031 magic_setuvar,
2032 0, 0, 0};
f93b4edd 2033#ifdef USE_THREADS
2034EXT MGVTBL vtbl_mutex = {0, 0, 0, 0, magic_mutexfree};
2035#endif /* USE_THREADS */
68dc0745 2036EXT MGVTBL vtbl_defelem = {magic_getdefelem,magic_setdefelem,
2037 0, 0, magic_freedefelem};
a0d0e21e 2038
36477c24 2039#ifdef USE_LOCALE_COLLATE
bbce6d69 2040EXT MGVTBL vtbl_collxfrm = {0,
2041 magic_setcollxfrm,
2042 0, 0, 0};
2043#endif
a0d0e21e 2044
2045#ifdef OVERLOAD
4633a7c4 2046EXT MGVTBL vtbl_amagic = {0, magic_setamagic,
748a9306 2047 0, 0, magic_setamagic};
4633a7c4 2048EXT MGVTBL vtbl_amagicelem = {0, magic_setamagic,
748a9306 2049 0, 0, magic_setamagic};
a0d0e21e 2050#endif /* OVERLOAD */
2051
bbce6d69 2052#else /* !DOINIT */
2053
79072805 2054EXT MGVTBL vtbl_sv;
2055EXT MGVTBL vtbl_env;
2056EXT MGVTBL vtbl_envelem;
2057EXT MGVTBL vtbl_sig;
2058EXT MGVTBL vtbl_sigelem;
463ee0b2 2059EXT MGVTBL vtbl_pack;
2060EXT MGVTBL vtbl_packelem;
79072805 2061EXT MGVTBL vtbl_dbline;
463ee0b2 2062EXT MGVTBL vtbl_isa;
2063EXT MGVTBL vtbl_isaelem;
79072805 2064EXT MGVTBL vtbl_arylen;
2065EXT MGVTBL vtbl_glob;
93a17b20 2066EXT MGVTBL vtbl_mglob;
99abf803 2067EXT MGVTBL vtbl_nkeys;
463ee0b2 2068EXT MGVTBL vtbl_taint;
79072805 2069EXT MGVTBL vtbl_substr;
2070EXT MGVTBL vtbl_vec;
a0d0e21e 2071EXT MGVTBL vtbl_pos;
79072805 2072EXT MGVTBL vtbl_bm;
55497cff 2073EXT MGVTBL vtbl_fm;
79072805 2074EXT MGVTBL vtbl_uvar;
a0d0e21e 2075
f93b4edd 2076#ifdef USE_THREADS
2077EXT MGVTBL vtbl_mutex;
2078#endif /* USE_THREADS */
2079
68dc0745 2080EXT MGVTBL vtbl_defelem;
a0d0e21e 2081
36477c24 2082#ifdef USE_LOCALE_COLLATE
bbce6d69 2083EXT MGVTBL vtbl_collxfrm;
2084#endif
a0d0e21e 2085
2086#ifdef OVERLOAD
2087EXT MGVTBL vtbl_amagic;
2088EXT MGVTBL vtbl_amagicelem;
2089#endif /* OVERLOAD */
2090
bbce6d69 2091#endif /* !DOINIT */
85e6fe83 2092
a0d0e21e 2093#ifdef OVERLOAD
c0315cdf 2094
a0d0e21e 2095EXT long amagic_generation;
2096
a6006777 2097#define NofAMmeth 58
a0d0e21e 2098#ifdef DOINIT
a6006777 2099EXTCONST char * AMG_names[NofAMmeth] = {
2100 "fallback", "abs", /* "fallback" should be the first. */
2101 "bool", "nomethod",
2102 "\"\"", "0+",
2103 "+", "+=",
2104 "-", "-=",
2105 "*", "*=",
2106 "/", "/=",
2107 "%", "%=",
2108 "**", "**=",
2109 "<<", "<<=",
2110 ">>", ">>=",
2111 "&", "&=",
2112 "|", "|=",
2113 "^", "^=",
2114 "<", "<=",
2115 ">", ">=",
2116 "==", "!=",
2117 "<=>", "cmp",
2118 "lt", "le",
2119 "gt", "ge",
2120 "eq", "ne",
2121 "!", "~",
2122 "++", "--",
2123 "atan2", "cos",
2124 "sin", "exp",
2125 "log", "sqrt",
2126 "x", "x=",
2127 ".", ".=",
2128 "=", "neg"
a0d0e21e 2129};
2130#else
a6006777 2131EXTCONST char * AMG_names[NofAMmeth];
a0d0e21e 2132#endif /* def INITAMAGIC */
2133
a6006777 2134struct am_table {
a0d0e21e 2135 long was_ok_sub;
2136 long was_ok_am;
a6006777 2137 U32 flags;
2138 CV* table[NofAMmeth];
a0d0e21e 2139 long fallback;
2140};
a6006777 2141struct am_table_short {
2142 long was_ok_sub;
2143 long was_ok_am;
2144 U32 flags;
2145};
a0d0e21e 2146typedef struct am_table AMT;
a6006777 2147typedef struct am_table_short AMTS;
a0d0e21e 2148
2149#define AMGfallNEVER 1
2150#define AMGfallNO 2
2151#define AMGfallYES 3
2152
a6006777 2153#define AMTf_AMAGIC 1
2154#define AMT_AMAGIC(amt) ((amt)->flags & AMTf_AMAGIC)
2155#define AMT_AMAGIC_on(amt) ((amt)->flags |= AMTf_AMAGIC)
2156#define AMT_AMAGIC_off(amt) ((amt)->flags &= ~AMTf_AMAGIC)
2157
a0d0e21e 2158enum {
2159 fallback_amg, abs_amg,
2160 bool__amg, nomethod_amg,
2161 string_amg, numer_amg,
2162 add_amg, add_ass_amg,
2163 subtr_amg, subtr_ass_amg,
2164 mult_amg, mult_ass_amg,
2165 div_amg, div_ass_amg,
2166 mod_amg, mod_ass_amg,
2167 pow_amg, pow_ass_amg,
2168 lshift_amg, lshift_ass_amg,
2169 rshift_amg, rshift_ass_amg,
748a9306 2170 band_amg, band_ass_amg,
2171 bor_amg, bor_ass_amg,
2172 bxor_amg, bxor_ass_amg,
a0d0e21e 2173 lt_amg, le_amg,
2174 gt_amg, ge_amg,
2175 eq_amg, ne_amg,
2176 ncmp_amg, scmp_amg,
2177 slt_amg, sle_amg,
2178 sgt_amg, sge_amg,
2179 seq_amg, sne_amg,
a0d0e21e 2180 not_amg, compl_amg,
2181 inc_amg, dec_amg,
2182 atan2_amg, cos_amg,
2183 sin_amg, exp_amg,
2184 log_amg, sqrt_amg,
2185 repeat_amg, repeat_ass_amg,
748a9306 2186 concat_amg, concat_ass_amg,
2187 copy_amg, neg_amg
a0d0e21e 2188};
c0315cdf 2189
2190/*
2191 * some compilers like to redefine cos et alia as faster
2192 * (and less accurate?) versions called F_cos et cetera (Quidquid
2193 * latine dictum sit, altum viditur.) This trick collides with
2194 * the Perl overloading (amg). The following #defines fool both.
2195 */
2196
2197#ifdef _FASTMATH
2198# ifdef atan2
2199# define F_atan2_amg atan2_amg
2200# endif
2201# ifdef cos
2202# define F_cos_amg cos_amg
2203# endif
2204# ifdef exp
2205# define F_exp_amg exp_amg
2206# endif
2207# ifdef log
2208# define F_log_amg log_amg
2209# endif
2210# ifdef pow
2211# define F_pow_amg pow_amg
2212# endif
2213# ifdef sin
2214# define F_sin_amg sin_amg
2215# endif
2216# ifdef sqrt
2217# define F_sqrt_amg sqrt_amg
2218# endif
2219#endif /* _FASTMATH */
2220
a0d0e21e 2221#endif /* OVERLOAD */
2222
36477c24 2223#ifdef USE_LOCALE_COLLATE
bbce6d69 2224EXT U32 collation_ix; /* Collation generation index */
2225EXT char * collation_name; /* Name of current collation */
2226EXT bool collation_standard INIT(TRUE); /* Assume simple collation */
2227EXT Size_t collxfrm_base; /* Basic overhead in *xfrm() */
2228EXT Size_t collxfrm_mult INIT(2); /* Expansion factor in *xfrm() */
36477c24 2229#endif /* USE_LOCALE_COLLATE */
bbce6d69 2230
36477c24 2231#ifdef USE_LOCALE_NUMERIC
bbce6d69 2232
2233EXT char * numeric_name; /* Name of current numeric locale */
2234EXT bool numeric_standard INIT(TRUE); /* Assume simple numerics */
2235EXT bool numeric_local INIT(TRUE); /* Assume local numerics */
2236
36477c24 2237#define SET_NUMERIC_STANDARD() \
2238 STMT_START { \
2239 if (! numeric_standard) \
2240 perl_set_numeric_standard(); \
2241 } STMT_END
2242
2243#define SET_NUMERIC_LOCAL() \
2244 STMT_START { \
2245 if (! numeric_local) \
2246 perl_set_numeric_local(); \
2247 } STMT_END
bbce6d69 2248
36477c24 2249#else /* !USE_LOCALE_NUMERIC */
bbce6d69 2250
36477c24 2251#define SET_NUMERIC_STANDARD() /**/
2252#define SET_NUMERIC_LOCAL() /**/
bbce6d69 2253
36477c24 2254#endif /* !USE_LOCALE_NUMERIC */
a0d0e21e 2255
760ac839 2256#if !defined(PERLIO_IS_STDIO) && defined(HAS_ATTRIBUTE)
2257/*
2258 * Now we have __attribute__ out of the way
2259 * Remap printf
2260 */
2261#define printf PerlIO_stdoutf
2262#endif
2263
85e6fe83 2264#endif /* Include guard */
a6e633de 2265
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