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1 | /* op.h |
2 | * | |
3 | * Copyright (c) 1991-2002, Larry Wall | |
4 | * | |
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. | |
7 | * | |
8 | */ | |
9 | ||
10 | /* | |
11 | * The fields of BASEOP are: | |
12 | * op_next Pointer to next ppcode to execute after this one. | |
13 | * (Top level pre-grafted op points to first op, | |
14 | * but this is replaced when op is grafted in, when | |
15 | * this op will point to the real next op, and the new | |
16 | * parent takes over role of remembering starting op.) | |
17 | * op_ppaddr Pointer to current ppcode's function. | |
18 | * op_type The type of the operation. | |
19 | * op_flags Flags common to all operations. See OPf_* below. | |
20 | * op_private Flags peculiar to a particular operation (BUT, | |
21 | * by default, set to the number of children until | |
22 | * the operation is privatized by a check routine, | |
23 | * which may or may not check number of children). | |
24 | */ | |
25 | ||
26 | #if PTRSIZE == 4 | |
27 | typedef U32TYPE PADOFFSET; | |
28 | #else | |
29 | # if PTRSIZE == 8 | |
30 | typedef U64TYPE PADOFFSET; | |
31 | # endif | |
32 | #endif | |
33 | #define NOT_IN_PAD ((PADOFFSET) -1) | |
34 | ||
35 | #ifdef DEBUGGING_OPS | |
36 | #define OPCODE opcode | |
37 | #else | |
38 | #define OPCODE U16 | |
39 | #endif | |
40 | ||
41 | #ifdef BASEOP_DEFINITION | |
42 | #define BASEOP BASEOP_DEFINITION | |
43 | #else | |
44 | #define BASEOP \ | |
45 | OP* op_next; \ | |
46 | OP* op_sibling; \ | |
47 | OP* (CPERLscope(*op_ppaddr))(pTHX); \ | |
48 | PADOFFSET op_targ; \ | |
49 | OPCODE op_type; \ | |
50 | U16 op_seq; \ | |
51 | U8 op_flags; \ | |
52 | U8 op_private; | |
53 | #endif | |
54 | ||
55 | #define OP_GIMME(op,dfl) \ | |
56 | (((op)->op_flags & OPf_WANT) == OPf_WANT_VOID ? G_VOID : \ | |
57 | ((op)->op_flags & OPf_WANT) == OPf_WANT_SCALAR ? G_SCALAR : \ | |
58 | ((op)->op_flags & OPf_WANT) == OPf_WANT_LIST ? G_ARRAY : \ | |
59 | dfl) | |
60 | ||
61 | /* | |
62 | =head1 "Gimme" Values | |
63 | ||
64 | =for apidoc Amn|U32|GIMME_V | |
65 | The XSUB-writer's equivalent to Perl's C<wantarray>. Returns C<G_VOID>, | |
66 | C<G_SCALAR> or C<G_ARRAY> for void, scalar or list context, | |
67 | respectively. | |
68 | ||
69 | =for apidoc Amn|U32|GIMME | |
70 | A backward-compatible version of C<GIMME_V> which can only return | |
71 | C<G_SCALAR> or C<G_ARRAY>; in a void context, it returns C<G_SCALAR>. | |
72 | Deprecated. Use C<GIMME_V> instead. | |
73 | ||
74 | =cut | |
75 | */ | |
76 | ||
77 | #define GIMME_V OP_GIMME(PL_op, block_gimme()) | |
78 | ||
79 | /* Public flags */ | |
80 | ||
81 | #define OPf_WANT 3 /* Mask for "want" bits: */ | |
82 | #define OPf_WANT_VOID 1 /* Want nothing */ | |
83 | #define OPf_WANT_SCALAR 2 /* Want single value */ | |
84 | #define OPf_WANT_LIST 3 /* Want list of any length */ | |
85 | #define OPf_KIDS 4 /* There is a firstborn child. */ | |
86 | #define OPf_PARENS 8 /* This operator was parenthesized. */ | |
87 | /* (Or block needs explicit scope entry.) */ | |
88 | #define OPf_REF 16 /* Certified reference. */ | |
89 | /* (Return container, not containee). */ | |
90 | #define OPf_MOD 32 /* Will modify (lvalue). */ | |
91 | #define OPf_STACKED 64 /* Some arg is arriving on the stack. */ | |
92 | #define OPf_SPECIAL 128 /* Do something weird for this op: */ | |
93 | /* On local LVAL, don't init local value. */ | |
94 | /* On OP_SORT, subroutine is inlined. */ | |
95 | /* On OP_NOT, inversion was implicit. */ | |
96 | /* On OP_LEAVE, don't restore curpm. */ | |
97 | /* On truncate, we truncate filehandle */ | |
98 | /* On control verbs, we saw no label */ | |
99 | /* On flipflop, we saw ... instead of .. */ | |
100 | /* On UNOPs, saw bare parens, e.g. eof(). */ | |
101 | /* On OP_ENTERSUB || OP_NULL, saw a "do". */ | |
102 | /* On OP_EXISTS, treat av as av, not avhv. */ | |
103 | /* On OP_(ENTER|LEAVE)EVAL, don't clear $@ */ | |
104 | /* On OP_ENTERITER, loop var is per-thread */ | |
105 | /* On pushre, re is /\s+/ imp. by split " " */ | |
106 | /* On regcomp, "use re 'eval'" was in scope */ | |
107 | /* On OP_READLINE, was <$filehandle> */ | |
108 | /* On RV2[SG]V, don't create GV--in defined()*/ | |
109 | ||
110 | /* old names; don't use in new code, but don't break them, either */ | |
111 | #define OPf_LIST OPf_WANT_LIST | |
112 | #define OPf_KNOW OPf_WANT | |
113 | ||
114 | #define GIMME \ | |
115 | (PL_op->op_flags & OPf_WANT \ | |
116 | ? ((PL_op->op_flags & OPf_WANT) == OPf_WANT_LIST \ | |
117 | ? G_ARRAY \ | |
118 | : G_SCALAR) \ | |
119 | : dowantarray()) | |
120 | ||
121 | /* NOTE: OP_NEXTSTATE, OP_DBSTATE, and OP_SETSTATE (i.e. COPs) carry lower | |
122 | * bits of PL_hints in op_private */ | |
123 | ||
124 | /* Private for lvalues */ | |
125 | #define OPpLVAL_INTRO 128 /* Lvalue must be localized or lvalue sub */ | |
126 | ||
127 | /* Private for OP_LEAVE, OP_LEAVESUB, OP_LEAVESUBLV and OP_LEAVEWRITE */ | |
128 | #define OPpREFCOUNTED 64 /* op_targ carries a refcount */ | |
129 | ||
130 | /* Private for OP_AASSIGN */ | |
131 | #define OPpASSIGN_COMMON 64 /* Left & right have syms in common. */ | |
132 | #define OPpASSIGN_HASH 32 /* Assigning to possible pseudohash. */ | |
133 | ||
134 | /* Private for OP_SASSIGN */ | |
135 | #define OPpASSIGN_BACKWARDS 64 /* Left & right switched. */ | |
136 | ||
137 | /* Private for OP_MATCH and OP_SUBST{,CONST} */ | |
138 | #define OPpRUNTIME 64 /* Pattern coming in on the stack */ | |
139 | ||
140 | /* Private for OP_TRANS */ | |
141 | #define OPpTRANS_FROM_UTF 1 | |
142 | #define OPpTRANS_TO_UTF 2 | |
143 | #define OPpTRANS_IDENTICAL 4 /* right side is same as left */ | |
144 | #define OPpTRANS_SQUASH 8 | |
145 | #define OPpTRANS_DELETE 16 | |
146 | #define OPpTRANS_COMPLEMENT 32 | |
147 | #define OPpTRANS_GROWS 64 | |
148 | ||
149 | /* Private for OP_REPEAT */ | |
150 | #define OPpREPEAT_DOLIST 64 /* List replication. */ | |
151 | ||
152 | /* Private for OP_RV2?V, OP_?ELEM */ | |
153 | #define OPpDEREF (32|64) /* Want ref to something: */ | |
154 | #define OPpDEREF_AV 32 /* Want ref to AV. */ | |
155 | #define OPpDEREF_HV 64 /* Want ref to HV. */ | |
156 | #define OPpDEREF_SV (32|64) /* Want ref to SV. */ | |
157 | /* OP_ENTERSUB only */ | |
158 | #define OPpENTERSUB_DB 16 /* Debug subroutine. */ | |
159 | #define OPpENTERSUB_HASTARG 32 /* Called from OP tree. */ | |
160 | #define OPpENTERSUB_NOMOD 64 /* Immune to mod() for :attrlist. */ | |
161 | /* OP_RV2CV only */ | |
162 | #define OPpENTERSUB_AMPER 8 /* Used & form to call. */ | |
163 | #define OPpENTERSUB_NOPAREN 128 /* bare sub call (without parens) */ | |
164 | #define OPpENTERSUB_INARGS 4 /* Lval used as arg to a sub. */ | |
165 | /* OP_GV only */ | |
166 | #define OPpEARLY_CV 32 /* foo() called before sub foo was parsed */ | |
167 | /* OP_?ELEM only */ | |
168 | #define OPpLVAL_DEFER 16 /* Defer creation of array/hash elem */ | |
169 | /* OP_RV2?V, OP_GVSV only */ | |
170 | #define OPpOUR_INTRO 16 /* Variable was in an our() */ | |
171 | /* OP_RV2[AH]V, OP_PAD[AH]V, OP_[AH]ELEM */ | |
172 | #define OPpMAYBE_LVSUB 8 /* We might be an lvalue to return */ | |
173 | /* for OP_RV2?V, lower bits carry hints (currently only HINT_STRICT_REFS) */ | |
174 | ||
175 | /* Private for OPs with TARGLEX */ | |
176 | /* (lower bits may carry MAXARG) */ | |
177 | #define OPpTARGET_MY 16 /* Target is PADMY. */ | |
178 | ||
179 | /* Private for OP_CONST */ | |
180 | #define OPpCONST_STRICT 8 /* bearword subject to strict 'subs' */ | |
181 | #define OPpCONST_ENTERED 16 /* Has been entered as symbol. */ | |
182 | #define OPpCONST_ARYBASE 32 /* Was a $[ translated to constant. */ | |
183 | #define OPpCONST_BARE 64 /* Was a bare word (filehandle?). */ | |
184 | #define OPpCONST_WARNING 128 /* Was a $^W translated to constant. */ | |
185 | ||
186 | /* Private for OP_FLIP/FLOP */ | |
187 | #define OPpFLIP_LINENUM 64 /* Range arg potentially a line num. */ | |
188 | ||
189 | /* Private for OP_LIST */ | |
190 | #define OPpLIST_GUESSED 64 /* Guessed that pushmark was needed. */ | |
191 | ||
192 | /* Private for OP_DELETE */ | |
193 | #define OPpSLICE 64 /* Operating on a list of keys */ | |
194 | ||
195 | /* Private for OP_EXISTS */ | |
196 | #define OPpEXISTS_SUB 64 /* Checking for &sub, not {} or []. */ | |
197 | ||
198 | /* Private for OP_SORT */ | |
199 | #define OPpSORT_NUMERIC 1 /* Optimized away { $a <=> $b } */ | |
200 | #define OPpSORT_INTEGER 2 /* Ditto while under "use integer" */ | |
201 | #define OPpSORT_REVERSE 4 /* Descending sort */ | |
202 | /* Private for OP_THREADSV */ | |
203 | #define OPpDONE_SVREF 64 /* Been through newSVREF once */ | |
204 | ||
205 | /* Private for OP_OPEN and OP_BACKTICK */ | |
206 | #define OPpOPEN_IN_RAW 16 /* binmode(F,":raw") on input fh */ | |
207 | #define OPpOPEN_IN_CRLF 32 /* binmode(F,":crlf") on input fh */ | |
208 | #define OPpOPEN_OUT_RAW 64 /* binmode(F,":raw") on output fh */ | |
209 | #define OPpOPEN_OUT_CRLF 128 /* binmode(F,":crlf") on output fh */ | |
210 | ||
211 | /* Private for OP_EXIT, HUSH also for OP_DIE */ | |
212 | #define OPpHUSH_VMSISH 64 /* hush DCL exit msg vmsish mode*/ | |
213 | #define OPpEXIT_VMSISH 128 /* exit(0) vs. exit(1) vmsish mode*/ | |
214 | ||
215 | struct op { | |
216 | BASEOP | |
217 | }; | |
218 | ||
219 | struct unop { | |
220 | BASEOP | |
221 | OP * op_first; | |
222 | }; | |
223 | ||
224 | struct binop { | |
225 | BASEOP | |
226 | OP * op_first; | |
227 | OP * op_last; | |
228 | }; | |
229 | ||
230 | struct logop { | |
231 | BASEOP | |
232 | OP * op_first; | |
233 | OP * op_other; | |
234 | }; | |
235 | ||
236 | struct listop { | |
237 | BASEOP | |
238 | OP * op_first; | |
239 | OP * op_last; | |
240 | }; | |
241 | ||
242 | struct pmop { | |
243 | BASEOP | |
244 | OP * op_first; | |
245 | OP * op_last; | |
246 | OP * op_pmreplroot; | |
247 | OP * op_pmreplstart; | |
248 | PMOP * op_pmnext; /* list of all scanpats */ | |
249 | #ifdef USE_ITHREADS | |
250 | IV op_pmoffset; | |
251 | #else | |
252 | REGEXP * op_pmregexp; /* compiled expression */ | |
253 | #endif | |
254 | U32 op_pmflags; | |
255 | U32 op_pmpermflags; | |
256 | U8 op_pmdynflags; | |
257 | #ifdef USE_ITHREADS | |
258 | char * op_pmstashpv; | |
259 | #else | |
260 | HV * op_pmstash; | |
261 | #endif | |
262 | }; | |
263 | ||
264 | #ifdef USE_ITHREADS | |
265 | #define PM_GETRE(o) (INT2PTR(REGEXP*,SvIVX(PL_regex_pad[(o)->op_pmoffset]))) | |
266 | #define PM_SETRE(o,r) STMT_START { SV* sv = PL_regex_pad[(o)->op_pmoffset]; sv_setiv(sv, PTR2IV(r)); } STMT_END | |
267 | #define PM_GETRE_SAFE(o) (PL_regex_pad ? PM_GETRE(o) : (REGEXP*)0) | |
268 | #define PM_SETRE_SAFE(o,r) if (PL_regex_pad) PM_SETRE(o,r) | |
269 | #else | |
270 | #define PM_GETRE(o) ((o)->op_pmregexp) | |
271 | #define PM_SETRE(o,r) ((o)->op_pmregexp = (r)) | |
272 | #define PM_GETRE_SAFE PM_GETRE | |
273 | #define PM_SETRE_SAFE PM_SETRE | |
274 | #endif | |
275 | ||
276 | #define PMdf_USED 0x01 /* pm has been used once already */ | |
277 | #define PMdf_TAINTED 0x02 /* pm compiled from tainted pattern */ | |
278 | #define PMdf_UTF8 0x04 /* pm compiled from utf8 data */ | |
279 | #define PMdf_DYN_UTF8 0x08 | |
280 | ||
281 | #define PMdf_CMP_UTF8 (PMdf_UTF8|PMdf_DYN_UTF8) | |
282 | ||
283 | #define PMf_RETAINT 0x0001 /* taint $1 etc. if target tainted */ | |
284 | #define PMf_ONCE 0x0002 /* use pattern only once per reset */ | |
285 | #define PMf_UNUSED 0x0004 /* free for use */ | |
286 | #define PMf_MAYBE_CONST 0x0008 /* replacement contains variables */ | |
287 | #define PMf_SKIPWHITE 0x0010 /* skip leading whitespace for split */ | |
288 | #define PMf_WHITE 0x0020 /* pattern is \s+ */ | |
289 | #define PMf_CONST 0x0040 /* subst replacement is constant */ | |
290 | #define PMf_KEEP 0x0080 /* keep 1st runtime pattern forever */ | |
291 | #define PMf_GLOBAL 0x0100 /* pattern had a g modifier */ | |
292 | #define PMf_CONTINUE 0x0200 /* don't reset pos() if //g fails */ | |
293 | #define PMf_EVAL 0x0400 /* evaluating replacement as expr */ | |
294 | #define PMf_LOCALE 0x0800 /* use locale for character types */ | |
295 | #define PMf_MULTILINE 0x1000 /* assume multiple lines */ | |
296 | #define PMf_SINGLELINE 0x2000 /* assume single line */ | |
297 | #define PMf_FOLD 0x4000 /* case insensitivity */ | |
298 | #define PMf_EXTENDED 0x8000 /* chuck embedded whitespace */ | |
299 | ||
300 | /* mask of bits stored in regexp->reganch */ | |
301 | #define PMf_COMPILETIME (PMf_MULTILINE|PMf_SINGLELINE|PMf_LOCALE|PMf_FOLD|PMf_EXTENDED) | |
302 | ||
303 | #ifdef USE_ITHREADS | |
304 | ||
305 | # define PmopSTASHPV(o) ((o)->op_pmstashpv) | |
306 | # define PmopSTASHPV_set(o,pv) (PmopSTASHPV(o) = savesharedpv(pv)) | |
307 | # define PmopSTASH(o) (PmopSTASHPV(o) \ | |
308 | ? gv_stashpv(PmopSTASHPV(o),GV_ADD) : Nullhv) | |
309 | # define PmopSTASH_set(o,hv) PmopSTASHPV_set(o, ((hv) ? HvNAME(hv) : Nullch)) | |
310 | # define PmopSTASH_free(o) PerlMemShared_free(PmopSTASHPV(o)) | |
311 | ||
312 | #else | |
313 | # define PmopSTASH(o) ((o)->op_pmstash) | |
314 | # define PmopSTASH_set(o,hv) ((o)->op_pmstash = (hv)) | |
315 | # define PmopSTASHPV(o) (PmopSTASH(o) ? HvNAME(PmopSTASH(o)) : Nullch) | |
316 | /* op_pmstash is not refcounted */ | |
317 | # define PmopSTASHPV_set(o,pv) PmopSTASH_set((o), gv_stashpv(pv,GV_ADD)) | |
318 | # define PmopSTASH_free(o) | |
319 | #endif | |
320 | ||
321 | struct svop { | |
322 | BASEOP | |
323 | SV * op_sv; | |
324 | }; | |
325 | ||
326 | struct padop { | |
327 | BASEOP | |
328 | PADOFFSET op_padix; | |
329 | }; | |
330 | ||
331 | struct pvop { | |
332 | BASEOP | |
333 | char * op_pv; | |
334 | }; | |
335 | ||
336 | struct loop { | |
337 | BASEOP | |
338 | OP * op_first; | |
339 | OP * op_last; | |
340 | OP * op_redoop; | |
341 | OP * op_nextop; | |
342 | OP * op_lastop; | |
343 | }; | |
344 | ||
345 | #define cUNOPx(o) ((UNOP*)o) | |
346 | #define cBINOPx(o) ((BINOP*)o) | |
347 | #define cLISTOPx(o) ((LISTOP*)o) | |
348 | #define cLOGOPx(o) ((LOGOP*)o) | |
349 | #define cPMOPx(o) ((PMOP*)o) | |
350 | #define cSVOPx(o) ((SVOP*)o) | |
351 | #define cPADOPx(o) ((PADOP*)o) | |
352 | #define cPVOPx(o) ((PVOP*)o) | |
353 | #define cCOPx(o) ((COP*)o) | |
354 | #define cLOOPx(o) ((LOOP*)o) | |
355 | ||
356 | #define cUNOP cUNOPx(PL_op) | |
357 | #define cBINOP cBINOPx(PL_op) | |
358 | #define cLISTOP cLISTOPx(PL_op) | |
359 | #define cLOGOP cLOGOPx(PL_op) | |
360 | #define cPMOP cPMOPx(PL_op) | |
361 | #define cSVOP cSVOPx(PL_op) | |
362 | #define cPADOP cPADOPx(PL_op) | |
363 | #define cPVOP cPVOPx(PL_op) | |
364 | #define cCOP cCOPx(PL_op) | |
365 | #define cLOOP cLOOPx(PL_op) | |
366 | ||
367 | #define cUNOPo cUNOPx(o) | |
368 | #define cBINOPo cBINOPx(o) | |
369 | #define cLISTOPo cLISTOPx(o) | |
370 | #define cLOGOPo cLOGOPx(o) | |
371 | #define cPMOPo cPMOPx(o) | |
372 | #define cSVOPo cSVOPx(o) | |
373 | #define cPADOPo cPADOPx(o) | |
374 | #define cPVOPo cPVOPx(o) | |
375 | #define cCOPo cCOPx(o) | |
376 | #define cLOOPo cLOOPx(o) | |
377 | ||
378 | #define kUNOP cUNOPx(kid) | |
379 | #define kBINOP cBINOPx(kid) | |
380 | #define kLISTOP cLISTOPx(kid) | |
381 | #define kLOGOP cLOGOPx(kid) | |
382 | #define kPMOP cPMOPx(kid) | |
383 | #define kSVOP cSVOPx(kid) | |
384 | #define kPADOP cPADOPx(kid) | |
385 | #define kPVOP cPVOPx(kid) | |
386 | #define kCOP cCOPx(kid) | |
387 | #define kLOOP cLOOPx(kid) | |
388 | ||
389 | ||
390 | #ifdef USE_ITHREADS | |
391 | # define cGVOPx_gv(o) ((GV*)PL_curpad[cPADOPx(o)->op_padix]) | |
392 | # define IS_PADGV(v) (v && SvTYPE(v) == SVt_PVGV && GvIN_PAD(v)) | |
393 | # define IS_PADCONST(v) (v && SvREADONLY(v)) | |
394 | # define cSVOPx_sv(v) (cSVOPx(v)->op_sv \ | |
395 | ? cSVOPx(v)->op_sv : PL_curpad[(v)->op_targ]) | |
396 | # define cSVOPx_svp(v) (cSVOPx(v)->op_sv \ | |
397 | ? &cSVOPx(v)->op_sv : &PL_curpad[(v)->op_targ]) | |
398 | #else | |
399 | # define cGVOPx_gv(o) ((GV*)cSVOPx(o)->op_sv) | |
400 | # define IS_PADGV(v) FALSE | |
401 | # define IS_PADCONST(v) FALSE | |
402 | # define cSVOPx_sv(v) (cSVOPx(v)->op_sv) | |
403 | # define cSVOPx_svp(v) (&cSVOPx(v)->op_sv) | |
404 | #endif | |
405 | ||
406 | #define cGVOP_gv cGVOPx_gv(PL_op) | |
407 | #define cGVOPo_gv cGVOPx_gv(o) | |
408 | #define kGVOP_gv cGVOPx_gv(kid) | |
409 | #define cSVOP_sv cSVOPx_sv(PL_op) | |
410 | #define cSVOPo_sv cSVOPx_sv(o) | |
411 | #define kSVOP_sv cSVOPx_sv(kid) | |
412 | ||
413 | #define Nullop Null(OP*) | |
414 | ||
415 | /* Lowest byte-and-a-bit of PL_opargs */ | |
416 | #define OA_MARK 1 | |
417 | #define OA_FOLDCONST 2 | |
418 | #define OA_RETSCALAR 4 | |
419 | #define OA_TARGET 8 | |
420 | #define OA_RETINTEGER 16 | |
421 | #define OA_OTHERINT 32 | |
422 | #define OA_DANGEROUS 64 | |
423 | #define OA_DEFGV 128 | |
424 | #define OA_TARGLEX 256 | |
425 | ||
426 | /* The next 4 bits encode op class information */ | |
427 | #define OCSHIFT 9 | |
428 | ||
429 | #define OA_CLASS_MASK (15 << OCSHIFT) | |
430 | ||
431 | #define OA_BASEOP (0 << OCSHIFT) | |
432 | #define OA_UNOP (1 << OCSHIFT) | |
433 | #define OA_BINOP (2 << OCSHIFT) | |
434 | #define OA_LOGOP (3 << OCSHIFT) | |
435 | #define OA_LISTOP (4 << OCSHIFT) | |
436 | #define OA_PMOP (5 << OCSHIFT) | |
437 | #define OA_SVOP (6 << OCSHIFT) | |
438 | #define OA_PADOP (7 << OCSHIFT) | |
439 | #define OA_PVOP_OR_SVOP (8 << OCSHIFT) | |
440 | #define OA_LOOP (9 << OCSHIFT) | |
441 | #define OA_COP (10 << OCSHIFT) | |
442 | #define OA_BASEOP_OR_UNOP (11 << OCSHIFT) | |
443 | #define OA_FILESTATOP (12 << OCSHIFT) | |
444 | #define OA_LOOPEXOP (13 << OCSHIFT) | |
445 | ||
446 | #define OASHIFT 13 | |
447 | ||
448 | /* Remaining nybbles of PL_opargs */ | |
449 | #define OA_SCALAR 1 | |
450 | #define OA_LIST 2 | |
451 | #define OA_AVREF 3 | |
452 | #define OA_HVREF 4 | |
453 | #define OA_CVREF 5 | |
454 | #define OA_FILEREF 6 | |
455 | #define OA_SCALARREF 7 | |
456 | #define OA_OPTIONAL 8 | |
457 | ||
458 | #ifdef USE_ITHREADS | |
459 | # define OP_REFCNT_INIT MUTEX_INIT(&PL_op_mutex) | |
460 | # define OP_REFCNT_LOCK MUTEX_LOCK(&PL_op_mutex) | |
461 | # define OP_REFCNT_UNLOCK MUTEX_UNLOCK(&PL_op_mutex) | |
462 | # define OP_REFCNT_TERM MUTEX_DESTROY(&PL_op_mutex) | |
463 | #else | |
464 | # define OP_REFCNT_INIT NOOP | |
465 | # define OP_REFCNT_LOCK NOOP | |
466 | # define OP_REFCNT_UNLOCK NOOP | |
467 | # define OP_REFCNT_TERM NOOP | |
468 | #endif | |
469 | ||
470 | #define OpREFCNT_set(o,n) ((o)->op_targ = (n)) | |
471 | #define OpREFCNT_inc(o) ((o) ? (++(o)->op_targ, (o)) : Nullop) | |
472 | #define OpREFCNT_dec(o) (--(o)->op_targ) | |
473 | ||
474 | /* flags used by Perl_load_module() */ | |
475 | #define PERL_LOADMOD_DENY 0x1 | |
476 | #define PERL_LOADMOD_NOIMPORT 0x2 | |
477 | #define PERL_LOADMOD_IMPORT_OPS 0x4 | |
478 | ||
479 | #ifdef USE_REENTRANT_API | |
480 | #include "reentr.h" | |
481 | #endif | |
482 |