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1 | /* sv.h |
79072805 |
2 | * |
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3 | * Copyright (C) 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, |
bc641c27 |
4 | * 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, by Larry Wall and others |
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5 | * |
6 | * You may distribute under the terms of either the GNU General Public |
7 | * License or the Artistic License, as specified in the README file. |
8 | * |
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9 | */ |
10 | |
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11 | #ifdef sv_flags |
12 | #undef sv_flags /* Convex has this in <signal.h> for sigvec() */ |
13 | #endif |
14 | |
954c1994 |
15 | /* |
ccfc67b7 |
16 | =head1 SV Flags |
17 | |
954c1994 |
18 | =for apidoc AmU||svtype |
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19 | An enum of flags for Perl types. These are found in the file B<sv.h> |
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20 | in the C<svtype> enum. Test these flags with the C<SvTYPE> macro. |
21 | |
22 | =for apidoc AmU||SVt_PV |
23 | Pointer type flag for scalars. See C<svtype>. |
24 | |
25 | =for apidoc AmU||SVt_IV |
26 | Integer type flag for scalars. See C<svtype>. |
27 | |
28 | =for apidoc AmU||SVt_NV |
29 | Double type flag for scalars. See C<svtype>. |
30 | |
31 | =for apidoc AmU||SVt_PVMG |
32 | Type flag for blessed scalars. See C<svtype>. |
33 | |
34 | =for apidoc AmU||SVt_PVAV |
35 | Type flag for arrays. See C<svtype>. |
36 | |
37 | =for apidoc AmU||SVt_PVHV |
38 | Type flag for hashes. See C<svtype>. |
39 | |
40 | =for apidoc AmU||SVt_PVCV |
41 | Type flag for code refs. See C<svtype>. |
42 | |
43 | =cut |
44 | */ |
45 | |
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46 | typedef enum { |
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47 | SVt_NULL, /* 0 */ |
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48 | SVt_BIND, /* 1 */ |
49 | SVt_IV, /* 2 */ |
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50 | SVt_NV, /* 3 */ |
51 | /* RV was here, before it was merged with IV. */ |
52 | SVt_PV, /* 4 */ |
53 | SVt_PVIV, /* 5 */ |
54 | SVt_PVNV, /* 6 */ |
55 | SVt_PVMG, /* 7 */ |
5c35adbb |
56 | SVt_REGEXP, /* 8 */ |
cecf5685 |
57 | /* PVBM was here, before BIND replaced it. */ |
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58 | SVt_PVGV, /* 9 */ |
59 | SVt_PVLV, /* 10 */ |
60 | SVt_PVAV, /* 11 */ |
61 | SVt_PVHV, /* 12 */ |
62 | SVt_PVCV, /* 13 */ |
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63 | SVt_PVFM, /* 14 */ |
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64 | SVt_PVIO, /* 15 */ |
65 | SVt_LAST /* keep last in enum. used to size arrays */ |
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66 | } svtype; |
67 | |
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68 | #ifndef PERL_CORE |
69 | /* Although Fast Boyer Moore tables are now being stored in PVGVs, for most |
70 | purposes eternal code wanting to consider PVBM probably needs to think of |
71 | PVMG instead. */ |
72 | # define SVt_PVBM SVt_PVMG |
4df7f6af |
73 | /* Anything wanting to create a reference from clean should ensure that it has |
74 | a scalar of type SVt_IV now: */ |
75 | # define SVt_RV SVt_IV |
cecf5685 |
76 | #endif |
77 | |
d2a0f284 |
78 | /* There is collusion here with sv_clear - sv_clear exits early for SVt_NULL |
79 | and SVt_IV, so never reaches the clause at the end that uses |
80 | sv_type_details->body_size to determine whether to call safefree(). Hence |
81 | body_size can be set no-zero to record the size of PTEs and HEs, without |
82 | fear of bogus frees. */ |
028b03ee |
83 | #ifdef PERL_IN_SV_C |
d2a0f284 |
84 | #define PTE_SVSLOT SVt_IV |
028b03ee |
85 | #endif |
6a93a7e5 |
86 | #if defined(PERL_IN_HV_C) || defined(PERL_IN_XS_APITEST) |
87 | #define HE_SVSLOT SVt_NULL |
88 | #endif |
43e6e717 |
89 | |
232d1c15 |
90 | #define PERL_ARENA_ROOTS_SIZE (SVt_LAST) |
91 | |
43e6e717 |
92 | /* typedefs to eliminate some typing */ |
93 | typedef struct he HE; |
94 | typedef struct hek HEK; |
95 | |
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96 | /* Using C's structural equivalence to help emulate C++ inheritance here... */ |
97 | |
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98 | /* start with 2 sv-head building blocks */ |
99 | #define _SV_HEAD(ptrtype) \ |
100 | ptrtype sv_any; /* pointer to body */ \ |
101 | U32 sv_refcnt; /* how many references to us */ \ |
102 | U32 sv_flags /* what we are */ |
103 | |
104 | #define _SV_HEAD_UNION \ |
105 | union { \ |
106 | IV svu_iv; \ |
107 | UV svu_uv; \ |
108 | SV* svu_rv; /* pointer to another SV */ \ |
109 | char* svu_pv; /* pointer to malloced string */ \ |
110 | SV** svu_array; \ |
111 | HE** svu_hash; \ |
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112 | GP* svu_gp; \ |
30153bd2 |
113 | } sv_u |
114 | |
115 | |
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116 | struct STRUCT_SV { /* struct sv { */ |
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117 | _SV_HEAD(void*); |
118 | _SV_HEAD_UNION; |
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119 | #ifdef DEBUG_LEAKING_SCALARS |
120 | unsigned sv_debug_optype:9; /* the type of OP that allocated us */ |
121 | unsigned sv_debug_inpad:1; /* was allocated in a pad for an OP */ |
122 | unsigned sv_debug_cloned:1; /* was cloned for an ithread */ |
123 | unsigned sv_debug_line:16; /* the line where we were allocated */ |
124 | char * sv_debug_file; /* the file where we were allocated */ |
125 | #endif |
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126 | }; |
127 | |
128 | struct gv { |
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129 | _SV_HEAD(XPVGV*); /* pointer to xpvgv body */ |
130 | _SV_HEAD_UNION; |
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131 | }; |
132 | |
133 | struct cv { |
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134 | _SV_HEAD(XPVCV*); /* pointer to xpvcv body */ |
135 | _SV_HEAD_UNION; |
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136 | }; |
137 | |
138 | struct av { |
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139 | _SV_HEAD(XPVAV*); /* pointer to xpvav body */ |
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140 | _SV_HEAD_UNION; |
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141 | }; |
142 | |
143 | struct hv { |
30153bd2 |
144 | _SV_HEAD(XPVHV*); /* pointer to xpvhv body */ |
145 | _SV_HEAD_UNION; |
8990e307 |
146 | }; |
147 | |
148 | struct io { |
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149 | _SV_HEAD(XPVIO*); /* pointer to xpvio body */ |
150 | _SV_HEAD_UNION; |
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151 | }; |
152 | |
30153bd2 |
153 | #undef _SV_HEAD |
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154 | #undef _SV_HEAD_UNION /* ensure no pollution */ |
30153bd2 |
155 | |
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156 | /* |
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157 | =head1 SV Manipulation Functions |
158 | |
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159 | =for apidoc Am|U32|SvREFCNT|SV* sv |
160 | Returns the value of the object's reference count. |
161 | |
162 | =for apidoc Am|SV*|SvREFCNT_inc|SV* sv |
163 | Increments the reference count of the given SV. |
164 | |
b37c2d43 |
165 | All of the following SvREFCNT_inc* macros are optimized versions of |
166 | SvREFCNT_inc, and can be replaced with SvREFCNT_inc. |
167 | |
168 | =for apidoc Am|SV*|SvREFCNT_inc_NN|SV* sv |
169 | Same as SvREFCNT_inc, but can only be used if you know I<sv> |
170 | is not NULL. Since we don't have to check the NULLness, it's faster |
171 | and smaller. |
172 | |
f2403e57 |
173 | =for apidoc Am|void|SvREFCNT_inc_void|SV* sv |
b37c2d43 |
174 | Same as SvREFCNT_inc, but can only be used if you don't need the |
175 | return value. The macro doesn't need to return a meaningful value. |
176 | |
f2403e57 |
177 | =for apidoc Am|void|SvREFCNT_inc_void_NN|SV* sv |
b37c2d43 |
178 | Same as SvREFCNT_inc, but can only be used if you don't need the return |
179 | value, and you know that I<sv> is not NULL. The macro doesn't need |
180 | to return a meaningful value, or check for NULLness, so it's smaller |
181 | and faster. |
182 | |
183 | =for apidoc Am|SV*|SvREFCNT_inc_simple|SV* sv |
4ea561bc |
184 | Same as SvREFCNT_inc, but can only be used with expressions without side |
185 | effects. Since we don't have to store a temporary value, it's faster. |
b37c2d43 |
186 | |
187 | =for apidoc Am|SV*|SvREFCNT_inc_simple_NN|SV* sv |
188 | Same as SvREFCNT_inc_simple, but can only be used if you know I<sv> |
189 | is not NULL. Since we don't have to check the NULLness, it's faster |
190 | and smaller. |
191 | |
f2403e57 |
192 | =for apidoc Am|void|SvREFCNT_inc_simple_void|SV* sv |
b37c2d43 |
193 | Same as SvREFCNT_inc_simple, but can only be used if you don't need the |
194 | return value. The macro doesn't need to return a meaningful value. |
195 | |
f2403e57 |
196 | =for apidoc Am|void|SvREFCNT_inc_simple_void_NN|SV* sv |
e638c624 |
197 | Same as SvREFCNT_inc, but can only be used if you don't need the return |
198 | value, and you know that I<sv> is not NULL. The macro doesn't need |
199 | to return a meaningful value, or check for NULLness, so it's smaller |
200 | and faster. |
b37c2d43 |
201 | |
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202 | =for apidoc Am|void|SvREFCNT_dec|SV* sv |
203 | Decrements the reference count of the given SV. |
204 | |
205 | =for apidoc Am|svtype|SvTYPE|SV* sv |
206 | Returns the type of the SV. See C<svtype>. |
207 | |
208 | =for apidoc Am|void|SvUPGRADE|SV* sv|svtype type |
209 | Used to upgrade an SV to a more complex form. Uses C<sv_upgrade> to |
210 | perform the upgrade if necessary. See C<svtype>. |
211 | |
212 | =cut |
213 | */ |
214 | |
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215 | #define SvANY(sv) (sv)->sv_any |
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216 | #define SvFLAGS(sv) (sv)->sv_flags |
aeea060c |
217 | #define SvREFCNT(sv) (sv)->sv_refcnt |
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218 | |
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219 | #if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(PERL_GCC_PEDANTIC) |
dce16143 |
220 | # define SvREFCNT_inc(sv) \ |
221 | ({ \ |
a3b680e6 |
222 | SV * const _sv = (SV*)(sv); \ |
3de3296f |
223 | if (_sv) \ |
224 | (SvREFCNT(_sv))++; \ |
225 | _sv; \ |
dce16143 |
226 | }) |
b37c2d43 |
227 | # define SvREFCNT_inc_simple(sv) \ |
228 | ({ \ |
229 | if (sv) \ |
230 | (SvREFCNT(sv))++; \ |
0181a44d |
231 | (SV *)(sv); \ |
b37c2d43 |
232 | }) |
233 | # define SvREFCNT_inc_NN(sv) \ |
234 | ({ \ |
235 | SV * const _sv = (SV*)(sv); \ |
236 | SvREFCNT(_sv)++; \ |
237 | _sv; \ |
238 | }) |
239 | # define SvREFCNT_inc_void(sv) \ |
240 | ({ \ |
241 | SV * const _sv = (SV*)(sv); \ |
242 | if (_sv) \ |
243 | (void)(SvREFCNT(_sv)++); \ |
244 | }) |
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245 | #else |
3db8f154 |
246 | # define SvREFCNT_inc(sv) \ |
b37c2d43 |
247 | ((PL_Sv=(SV*)(sv)) ? (++(SvREFCNT(PL_Sv)),PL_Sv) : NULL) |
248 | # define SvREFCNT_inc_simple(sv) \ |
249 | ((sv) ? (SvREFCNT(sv)++,(SV*)(sv)) : NULL) |
250 | # define SvREFCNT_inc_NN(sv) \ |
251 | (PL_Sv=(SV*)(sv),++(SvREFCNT(PL_Sv)),PL_Sv) |
252 | # define SvREFCNT_inc_void(sv) \ |
253 | (void)((PL_Sv=(SV*)(sv)) ? ++(SvREFCNT(PL_Sv)) : 0) |
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254 | #endif |
255 | |
b37c2d43 |
256 | /* These guys don't need the curly blocks */ |
e638c624 |
257 | #define SvREFCNT_inc_simple_void(sv) STMT_START { if (sv) SvREFCNT(sv)++; } STMT_END |
b37c2d43 |
258 | #define SvREFCNT_inc_simple_NN(sv) (++(SvREFCNT(sv)),(SV*)(sv)) |
259 | #define SvREFCNT_inc_void_NN(sv) (void)(++SvREFCNT((SV*)(sv))) |
260 | #define SvREFCNT_inc_simple_void_NN(sv) (void)(++SvREFCNT((SV*)(sv))) |
261 | |
8c4d3c90 |
262 | #if defined(__GNUC__) && !defined(__STRICT_ANSI__) && !defined(PERL_GCC_PEDANTIC) |
263 | # define SvREFCNT_dec(sv) \ |
264 | ({ \ |
a3b680e6 |
265 | SV * const _sv = (SV*)(sv); \ |
3de3296f |
266 | if (_sv) { \ |
267 | if (SvREFCNT(_sv)) { \ |
268 | if (--(SvREFCNT(_sv)) == 0) \ |
269 | Perl_sv_free2(aTHX_ _sv); \ |
8c4d3c90 |
270 | } else { \ |
3de3296f |
271 | sv_free(_sv); \ |
8c4d3c90 |
272 | } \ |
273 | } \ |
274 | }) |
275 | #else |
91f3b821 |
276 | #define SvREFCNT_dec(sv) sv_free((SV*)(sv)) |
8c4d3c90 |
277 | #endif |
a863c7d1 |
278 | |
8990e307 |
279 | #define SVTYPEMASK 0xff |
1fef4616 |
280 | #define SvTYPE(sv) ((svtype)((sv)->sv_flags & SVTYPEMASK)) |
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281 | |
0565a181 |
282 | /* Sadly there are some parts of the core that have pointers to already-freed |
283 | SV heads, and rely on being able to tell that they are now free. So mark |
284 | them all by using a consistent macro. */ |
285 | #define SvIS_FREED(sv) ((sv)->sv_flags == SVTYPEMASK) |
286 | |
63f97190 |
287 | #define SvUPGRADE(sv, mt) (SvTYPE(sv) >= (mt) || (sv_upgrade(sv, mt), 1)) |
79072805 |
288 | |
3f7ef1d4 |
289 | #define SVf_IOK 0x00000100 /* has valid public integer value */ |
290 | #define SVf_NOK 0x00000200 /* has valid public numeric value */ |
291 | #define SVf_POK 0x00000400 /* has valid public pointer value */ |
292 | #define SVf_ROK 0x00000800 /* has a valid reference pointer */ |
293 | |
294 | #define SVp_IOK 0x00001000 /* has valid non-public integer value */ |
295 | #define SVp_NOK 0x00002000 /* has valid non-public numeric value */ |
296 | #define SVp_POK 0x00004000 /* has valid non-public pointer value */ |
297 | #define SVp_SCREAM 0x00008000 /* has been studied? */ |
2e5b91de |
298 | #define SVphv_CLONEABLE SVp_SCREAM /* PVHV (stashes) clone its objects */ |
299 | #define SVpgv_GP SVp_SCREAM /* GV has a valid GP */ |
1ccdb730 |
300 | #define SVprv_PCS_IMPORTED SVp_SCREAM /* RV is a proxy for a constant |
301 | subroutine in another package. Set the |
302 | CvIMPORTED_CV_ON() if it needs to be |
303 | expanded to a real GV */ |
3f7ef1d4 |
304 | |
305 | #define SVs_PADSTALE 0x00010000 /* lexical has gone out of scope */ |
306 | #define SVpad_STATE 0x00010000 /* pad name is a "state" var */ |
307 | #define SVs_PADTMP 0x00020000 /* in use as tmp */ |
308 | #define SVpad_TYPED 0x00020000 /* pad name is a Typed Lexical */ |
309 | #define SVs_PADMY 0x00040000 /* in use a "my" variable */ |
310 | #define SVpad_OUR 0x00040000 /* pad name is "our" instead of "my" */ |
311 | #define SVs_TEMP 0x00080000 /* string is stealable? */ |
312 | #define SVs_OBJECT 0x00100000 /* is "blessed" */ |
313 | #define SVs_GMG 0x00200000 /* has magical get method */ |
314 | #define SVs_SMG 0x00400000 /* has magical set method */ |
315 | #define SVs_RMG 0x00800000 /* has random magical methods */ |
316 | |
317 | #define SVf_FAKE 0x01000000 /* 0: glob or lexical is just a copy |
318 | 1: SV head arena wasn't malloc()ed |
319 | 2: in conjunction with SVf_READONLY |
320 | marks a shared hash key scalar |
321 | (SvLEN == 0) or a copy on write |
322 | string (SvLEN != 0) [SvIsCOW(sv)] |
323 | 3: For PVCV, whether CvUNIQUE(cv) |
324 | refers to an eval or once only |
325 | [CvEVAL(cv), CvSPECIAL(cv)] |
326 | 4: Whether the regexp pointer is in |
327 | fact an offset [SvREPADTMP(sv)] |
328 | 5: On a pad name SV, that slot in the |
329 | frame AV is a REFCNT'ed reference |
330 | to a lexical from "outside". */ |
331 | #define SVphv_REHASH SVf_FAKE /* 6: On a PVHV, hash values are being |
332 | recalculated */ |
333 | #define SVf_OOK 0x02000000 /* has valid offset value. For a PVHV this |
334 | means that a hv_aux struct is present |
335 | after the main array */ |
336 | #define SVf_BREAK 0x04000000 /* refcnt is artificially low - used by |
c40f1585 |
337 | SV's in final arena cleanup */ |
3f7ef1d4 |
338 | #define SVf_READONLY 0x08000000 /* may not be modified */ |
8990e307 |
339 | |
a0d0e21e |
340 | |
8990e307 |
341 | |
5bc28da9 |
342 | |
430eacda |
343 | #define SVf_THINKFIRST (SVf_READONLY|SVf_ROK|SVf_FAKE) |
5bc28da9 |
344 | |
a0d0e21e |
345 | #define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \ |
2e5b91de |
346 | SVp_IOK|SVp_NOK|SVp_POK|SVpgv_GP) |
a0d0e21e |
347 | |
7a77f1af |
348 | #define PRIVSHIFT 4 /* (SVp_?OK >> PRIVSHIFT) == SVf_?OK */ |
8990e307 |
349 | |
cd028baa |
350 | #define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */ |
2e9f07a2 |
351 | |
352 | /* Ensure this value does not clash with the GV_ADD* flags in gv.h: */ |
cd028baa |
353 | #define SVf_UTF8 0x20000000 /* SvPV is UTF-8 encoded |
354 | This is also set on RVs whose overloaded |
355 | stringification is UTF-8. This might |
356 | only happen as a side effect of SvPV() */ |
357 | |
26a32e18 |
358 | |
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359 | /* Some private flags. */ |
360 | |
2e9f07a2 |
361 | /* PVAV could probably use 0x2000000 without conflict. I assume that PVFM can |
362 | be UTF-8 encoded, and PVCVs could well have UTF-8 prototypes. PVIOs haven't |
363 | been restructured, so sometimes get used as string buffers. */ |
364 | |
26a32e18 |
365 | /* PVHV */ |
3f7ef1d4 |
366 | #define SVphv_SHAREKEYS 0x20000000 /* PVHV keys live on shared string table */ |
a72e56b0 |
367 | /* PVNV, PVMG, presumably only inside pads */ |
3f7ef1d4 |
368 | #define SVpad_NAME 0x40000000 /* This SV is a name in the PAD, so |
369 | SVpad_TYPED, SVpad_OUR and SVpad_STATE |
370 | apply */ |
26a32e18 |
371 | /* PVAV */ |
3f7ef1d4 |
372 | #define SVpav_REAL 0x40000000 /* free old entries */ |
26a32e18 |
373 | /* PVHV */ |
3f7ef1d4 |
374 | #define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */ |
69d97907 |
375 | /* This is only set true on a PVGV when it's playing "PVBM", but is tested for |
376 | on any regular scalar (anything <= PVLV) */ |
5fe1b2e4 |
377 | #define SVpbm_VALID 0x40000000 |
26a32e18 |
378 | /* ??? */ |
3f7ef1d4 |
379 | #define SVrepl_EVAL 0x40000000 /* Replacement part of s///e */ |
25da4f38 |
380 | |
26a32e18 |
381 | /* IV, PVIV, PVNV, PVMG, PVGV and (I assume) PVLV */ |
382 | /* Presumably IVs aren't stored in pads */ |
3f7ef1d4 |
383 | #define SVf_IVisUV 0x80000000 /* use XPVUV instead of XPVIV */ |
26a32e18 |
384 | /* PVAV */ |
3f7ef1d4 |
385 | #define SVpav_REIFY 0x80000000 /* can become real */ |
26a32e18 |
386 | /* PVHV */ |
3f7ef1d4 |
387 | #define SVphv_HASKFLAGS 0x80000000 /* keys have flag byte after hash */ |
26a32e18 |
388 | /* PVFM */ |
3f7ef1d4 |
389 | #define SVpfm_COMPILED 0x80000000 /* FORMLINE is compiled */ |
cecf5685 |
390 | /* PVGV when SVpbm_VALID is true */ |
5fe1b2e4 |
391 | #define SVpbm_TAIL 0x80000000 |
26a32e18 |
392 | /* RV upwards. However, SVf_ROK and SVp_IOK are exclusive */ |
3f7ef1d4 |
393 | #define SVprv_WEAKREF 0x80000000 /* Weak reference */ |
810b8aa5 |
394 | |
20f4945e |
395 | #define _XPV_ALLOCATED_HEAD \ |
396 | STRLEN xpv_cur; /* length of svu_pv as a C string */ \ |
397 | STRLEN xpv_len /* allocated size */ |
398 | |
399 | #define _XPV_HEAD \ |
400 | union _xnvu xnv_u; \ |
401 | _XPV_ALLOCATED_HEAD |
402 | |
403 | union _xnvu { |
404 | NV xnv_nv; /* numeric value, if any */ |
405 | HV * xgv_stash; |
406 | struct { |
407 | U32 xlow; |
408 | U32 xhigh; |
409 | } xpad_cop_seq; /* used by pad.c for cop_sequence */ |
410 | struct { |
411 | U32 xbm_previous; /* how many characters in string before rare? */ |
412 | U8 xbm_flags; |
413 | U8 xbm_rare; /* rarest character in string */ |
414 | } xbm_s; /* fields from PVBM */ |
415 | }; |
416 | |
417 | union _xivu { |
418 | IV xivu_iv; /* integer value */ |
419 | /* xpvfm: pv offset */ |
420 | UV xivu_uv; |
421 | void * xivu_p1; |
422 | I32 xivu_i32; |
423 | HEK * xivu_namehek; /* xpvlv, xpvgv: GvNAME */ |
424 | }; |
425 | |
426 | union _xmgu { |
427 | MAGIC* xmg_magic; /* linked list of magicalness */ |
428 | HV* xmg_ourstash; /* Stash for our (when SvPAD_OUR is true) */ |
429 | }; |
11ca45c0 |
430 | |
79072805 |
431 | struct xpv { |
20f4945e |
432 | _XPV_HEAD; |
79072805 |
433 | }; |
434 | |
9f1501b2 |
435 | typedef struct { |
20f4945e |
436 | _XPV_ALLOCATED_HEAD; |
9f1501b2 |
437 | } xpv_allocated; |
59813432 |
438 | |
79072805 |
439 | struct xpviv { |
20f4945e |
440 | _XPV_HEAD; |
441 | union _xivu xiv_u; |
79072805 |
442 | }; |
443 | |
311a25d9 |
444 | typedef struct { |
20f4945e |
445 | _XPV_ALLOCATED_HEAD; |
446 | union _xivu xiv_u; |
311a25d9 |
447 | } xpviv_allocated; |
311a25d9 |
448 | |
449 | #define xiv_iv xiv_u.xivu_iv |
450 | |
ff68c719 |
451 | struct xpvuv { |
20f4945e |
452 | _XPV_HEAD; |
453 | union _xivu xuv_u; |
ff68c719 |
454 | }; |
455 | |
20f4945e |
456 | #define xuv_uv xuv_u.xivu_uv |
311a25d9 |
457 | |
79072805 |
458 | struct xpvnv { |
20f4945e |
459 | _XPV_HEAD; |
460 | union _xivu xiv_u; |
79072805 |
461 | }; |
462 | |
20f4945e |
463 | #define _XPVMG_HEAD \ |
464 | union _xivu xiv_u; \ |
465 | union _xmgu xmg_u; \ |
466 | HV* xmg_stash /* class package */ |
467 | |
6ee623d5 |
468 | /* These structure must match the beginning of struct xpvhv in hv.h. */ |
79072805 |
469 | struct xpvmg { |
20f4945e |
470 | _XPV_HEAD; |
471 | _XPVMG_HEAD; |
79072805 |
472 | }; |
473 | |
5c35adbb |
474 | struct xregexp { |
20f4945e |
475 | _XPV_HEAD; |
476 | _XPVMG_HEAD; |
5c35adbb |
477 | REGEXP * xrx_regexp; /* Our regular expression */ |
478 | }; |
479 | |
79072805 |
480 | struct xpvlv { |
20f4945e |
481 | _XPV_HEAD; |
482 | _XPVMG_HEAD; |
8990e307 |
483 | |
79072805 |
484 | STRLEN xlv_targoff; |
485 | STRLEN xlv_targlen; |
486 | SV* xlv_targ; |
dd28f7bb |
487 | char xlv_type; /* k=keys .=pos x=substr v=vec /=join/re |
488 | * y=alem/helem/iter t=tie T=tied HE */ |
79072805 |
489 | }; |
490 | |
cecf5685 |
491 | /* This structure works in 3 ways - regular scalar, GV with GP, or fast |
492 | Boyer-Moore. */ |
79072805 |
493 | struct xpvgv { |
20f4945e |
494 | _XPV_HEAD; |
495 | _XPVMG_HEAD; |
79072805 |
496 | }; |
497 | |
fd40b977 |
498 | /* This structure must match XPVCV in cv.h */ |
44a8e56a |
499 | |
77a005ab |
500 | typedef U16 cv_flags_t; |
501 | |
20f4945e |
502 | #define _XPVCV_COMMON \ |
503 | HV * xcv_stash; \ |
504 | union { \ |
505 | OP * xcv_start; \ |
506 | ANY xcv_xsubany; \ |
507 | } xcv_start_u; \ |
508 | union { \ |
509 | OP * xcv_root; \ |
510 | void (*xcv_xsub) (pTHX_ CV*); \ |
511 | } xcv_root_u; \ |
512 | GV * xcv_gv; \ |
513 | char * xcv_file; \ |
514 | AV * xcv_padlist; \ |
515 | CV * xcv_outside; \ |
516 | U32 xcv_outside_seq; /* the COP sequence (at the point of our \ |
517 | * compilation) in the lexically enclosing \ |
518 | * sub */ \ |
519 | cv_flags_t xcv_flags |
8990e307 |
520 | |
20f4945e |
521 | struct xpvfm { |
522 | _XPV_HEAD; |
523 | _XPVMG_HEAD; |
524 | _XPVCV_COMMON; |
11a7ac70 |
525 | IV xfm_lines; |
79072805 |
526 | }; |
527 | |
3038937b |
528 | typedef struct { |
20f4945e |
529 | _XPV_ALLOCATED_HEAD; |
530 | _XPVMG_HEAD; |
531 | _XPVCV_COMMON; |
3038937b |
532 | IV xfm_lines; |
533 | } xpvfm_allocated; |
534 | |
8990e307 |
535 | struct xpvio { |
20f4945e |
536 | _XPV_HEAD; |
537 | _XPVMG_HEAD; |
8990e307 |
538 | |
760ac839 |
539 | PerlIO * xio_ifp; /* ifp and ofp are normally the same */ |
540 | PerlIO * xio_ofp; /* but sockets need separate streams */ |
4755096e |
541 | /* Cray addresses everything by word boundaries (64 bits) and |
542 | * code and data pointers cannot be mixed (which is exactly what |
543 | * Perl_filter_add() tries to do with the dirp), hence the following |
544 | * union trick (as suggested by Gurusamy Sarathy). |
545 | * For further information see Geir Johansen's problem report titled |
546 | [ID 20000612.002] Perl problem on Cray system |
547 | * The any pointer (known as IoANY()) will also be a good place |
548 | * to hang any IO disciplines to. |
549 | */ |
550 | union { |
551 | DIR * xiou_dirp; /* for opendir, readdir, etc */ |
552 | void * xiou_any; /* for alignment */ |
553 | } xio_dirpu; |
11a7ac70 |
554 | IV xio_lines; /* $. */ |
555 | IV xio_page; /* $% */ |
556 | IV xio_page_len; /* $= */ |
557 | IV xio_lines_left; /* $- */ |
8990e307 |
558 | char * xio_top_name; /* $^ */ |
559 | GV * xio_top_gv; /* $^ */ |
560 | char * xio_fmt_name; /* $~ */ |
561 | GV * xio_fmt_gv; /* $~ */ |
562 | char * xio_bottom_name;/* $^B */ |
563 | GV * xio_bottom_gv; /* $^B */ |
8990e307 |
564 | char xio_type; |
04071355 |
565 | U8 xio_flags; |
8990e307 |
566 | }; |
4755096e |
567 | #define xio_dirp xio_dirpu.xiou_dirp |
568 | #define xio_any xio_dirpu.xiou_any |
8990e307 |
569 | |
e0c19803 |
570 | #define IOf_ARGV 1 /* this fp iterates over ARGV */ |
571 | #define IOf_START 2 /* check for null ARGV and substitute '-' */ |
572 | #define IOf_FLUSH 4 /* this fp wants a flush after write op */ |
573 | #define IOf_DIDTOP 8 /* just did top of form */ |
574 | #define IOf_UNTAINT 16 /* consider this fp (and its data) "safe" */ |
575 | #define IOf_NOLINE 32 /* slurped a pseudo-line from empty file */ |
576 | #define IOf_FAKE_DIRP 64 /* xio_dirp is fake (source filters kludge) */ |
8990e307 |
577 | |
ed6116ce |
578 | /* The following macros define implementation-independent predicates on SVs. */ |
579 | |
954c1994 |
580 | /* |
fbf9f983 |
581 | =for apidoc Am|U32|SvNIOK|SV* sv |
582 | Returns a U32 value indicating whether the SV contains a number, integer or |
954c1994 |
583 | double. |
584 | |
fbf9f983 |
585 | =for apidoc Am|U32|SvNIOKp|SV* sv |
586 | Returns a U32 value indicating whether the SV contains a number, integer or |
954c1994 |
587 | double. Checks the B<private> setting. Use C<SvNIOK>. |
588 | |
589 | =for apidoc Am|void|SvNIOK_off|SV* sv |
590 | Unsets the NV/IV status of an SV. |
591 | |
fbf9f983 |
592 | =for apidoc Am|U32|SvOK|SV* sv |
593 | Returns a U32 value indicating whether the value is an SV. It also tells |
9adebda4 |
594 | whether the value is defined or not. |
954c1994 |
595 | |
fbf9f983 |
596 | =for apidoc Am|U32|SvIOKp|SV* sv |
597 | Returns a U32 value indicating whether the SV contains an integer. Checks |
954c1994 |
598 | the B<private> setting. Use C<SvIOK>. |
599 | |
fbf9f983 |
600 | =for apidoc Am|U32|SvNOKp|SV* sv |
601 | Returns a U32 value indicating whether the SV contains a double. Checks the |
954c1994 |
602 | B<private> setting. Use C<SvNOK>. |
603 | |
fbf9f983 |
604 | =for apidoc Am|U32|SvPOKp|SV* sv |
605 | Returns a U32 value indicating whether the SV contains a character string. |
954c1994 |
606 | Checks the B<private> setting. Use C<SvPOK>. |
607 | |
fbf9f983 |
608 | =for apidoc Am|U32|SvIOK|SV* sv |
609 | Returns a U32 value indicating whether the SV contains an integer. |
954c1994 |
610 | |
611 | =for apidoc Am|void|SvIOK_on|SV* sv |
612 | Tells an SV that it is an integer. |
613 | |
614 | =for apidoc Am|void|SvIOK_off|SV* sv |
615 | Unsets the IV status of an SV. |
616 | |
617 | =for apidoc Am|void|SvIOK_only|SV* sv |
618 | Tells an SV that it is an integer and disables all other OK bits. |
619 | |
e331fc52 |
620 | =for apidoc Am|void|SvIOK_only_UV|SV* sv |
621 | Tells and SV that it is an unsigned integer and disables all other OK bits. |
622 | |
12fa07df |
623 | =for apidoc Am|bool|SvIOK_UV|SV* sv |
e331fc52 |
624 | Returns a boolean indicating whether the SV contains an unsigned integer. |
625 | |
fbf9f983 |
626 | =for apidoc Am|bool|SvUOK|SV* sv |
28e5dec8 |
627 | Returns a boolean indicating whether the SV contains an unsigned integer. |
628 | |
12fa07df |
629 | =for apidoc Am|bool|SvIOK_notUV|SV* sv |
d1be9408 |
630 | Returns a boolean indicating whether the SV contains a signed integer. |
e331fc52 |
631 | |
fbf9f983 |
632 | =for apidoc Am|U32|SvNOK|SV* sv |
633 | Returns a U32 value indicating whether the SV contains a double. |
954c1994 |
634 | |
635 | =for apidoc Am|void|SvNOK_on|SV* sv |
636 | Tells an SV that it is a double. |
637 | |
638 | =for apidoc Am|void|SvNOK_off|SV* sv |
639 | Unsets the NV status of an SV. |
640 | |
641 | =for apidoc Am|void|SvNOK_only|SV* sv |
642 | Tells an SV that it is a double and disables all other OK bits. |
643 | |
fbf9f983 |
644 | =for apidoc Am|U32|SvPOK|SV* sv |
645 | Returns a U32 value indicating whether the SV contains a character |
954c1994 |
646 | string. |
647 | |
648 | =for apidoc Am|void|SvPOK_on|SV* sv |
649 | Tells an SV that it is a string. |
650 | |
651 | =for apidoc Am|void|SvPOK_off|SV* sv |
652 | Unsets the PV status of an SV. |
653 | |
654 | =for apidoc Am|void|SvPOK_only|SV* sv |
655 | Tells an SV that it is a string and disables all other OK bits. |
1e54db1a |
656 | Will also turn off the UTF-8 status. |
954c1994 |
657 | |
b0f01acb |
658 | =for apidoc Am|bool|SvVOK|SV* sv |
659 | Returns a boolean indicating whether the SV contains a v-string. |
660 | |
fbf9f983 |
661 | =for apidoc Am|U32|SvOOK|SV* sv |
662 | Returns a U32 indicating whether the SvIVX is a valid offset value for |
954c1994 |
663 | the SvPVX. This hack is used internally to speed up removal of characters |
664 | from the beginning of a SvPV. When SvOOK is true, then the start of the |
665 | allocated string buffer is really (SvPVX - SvIVX). |
666 | |
fbf9f983 |
667 | =for apidoc Am|U32|SvROK|SV* sv |
954c1994 |
668 | Tests if the SV is an RV. |
669 | |
670 | =for apidoc Am|void|SvROK_on|SV* sv |
671 | Tells an SV that it is an RV. |
672 | |
673 | =for apidoc Am|void|SvROK_off|SV* sv |
674 | Unsets the RV status of an SV. |
675 | |
676 | =for apidoc Am|SV*|SvRV|SV* sv |
677 | Dereferences an RV to return the SV. |
678 | |
679 | =for apidoc Am|IV|SvIVX|SV* sv |
645c22ef |
680 | Returns the raw value in the SV's IV slot, without checks or conversions. |
681 | Only use when you are sure SvIOK is true. See also C<SvIV()>. |
954c1994 |
682 | |
683 | =for apidoc Am|UV|SvUVX|SV* sv |
645c22ef |
684 | Returns the raw value in the SV's UV slot, without checks or conversions. |
685 | Only use when you are sure SvIOK is true. See also C<SvUV()>. |
954c1994 |
686 | |
687 | =for apidoc Am|NV|SvNVX|SV* sv |
645c22ef |
688 | Returns the raw value in the SV's NV slot, without checks or conversions. |
689 | Only use when you are sure SvNOK is true. See also C<SvNV()>. |
954c1994 |
690 | |
691 | =for apidoc Am|char*|SvPVX|SV* sv |
645c22ef |
692 | Returns a pointer to the physical string in the SV. The SV must contain a |
954c1994 |
693 | string. |
694 | |
695 | =for apidoc Am|STRLEN|SvCUR|SV* sv |
696 | Returns the length of the string which is in the SV. See C<SvLEN>. |
697 | |
698 | =for apidoc Am|STRLEN|SvLEN|SV* sv |
659239a4 |
699 | Returns the size of the string buffer in the SV, not including any part |
700 | attributable to C<SvOOK>. See C<SvCUR>. |
954c1994 |
701 | |
702 | =for apidoc Am|char*|SvEND|SV* sv |
703 | Returns a pointer to the last character in the string which is in the SV. |
704 | See C<SvCUR>. Access the character as *(SvEND(sv)). |
705 | |
706 | =for apidoc Am|HV*|SvSTASH|SV* sv |
707 | Returns the stash of the SV. |
708 | |
672994ce |
709 | =for apidoc Am|void|SvIV_set|SV* sv|IV val |
20799e15 |
710 | Set the value of the IV pointer in sv to val. It is possible to perform |
711 | the same function of this macro with an lvalue assignment to C<SvIVX>. |
712 | With future Perls, however, it will be more efficient to use |
713 | C<SvIV_set> instead of the lvalue assignment to C<SvIVX>. |
672994ce |
714 | |
715 | =for apidoc Am|void|SvNV_set|SV* sv|NV val |
20799e15 |
716 | Set the value of the NV pointer in sv to val. See C<SvIV_set>. |
672994ce |
717 | |
718 | =for apidoc Am|void|SvPV_set|SV* sv|char* val |
20799e15 |
719 | Set the value of the PV pointer in sv to val. See C<SvIV_set>. |
672994ce |
720 | |
721 | =for apidoc Am|void|SvUV_set|SV* sv|UV val |
20799e15 |
722 | Set the value of the UV pointer in sv to val. See C<SvIV_set>. |
672994ce |
723 | |
724 | =for apidoc Am|void|SvRV_set|SV* sv|SV* val |
20799e15 |
725 | Set the value of the RV pointer in sv to val. See C<SvIV_set>. |
672994ce |
726 | |
727 | =for apidoc Am|void|SvMAGIC_set|SV* sv|MAGIC* val |
20799e15 |
728 | Set the value of the MAGIC pointer in sv to val. See C<SvIV_set>. |
672994ce |
729 | |
b6f4de24 |
730 | =for apidoc Am|void|SvSTASH_set|SV* sv|HV* val |
20799e15 |
731 | Set the value of the STASH pointer in sv to val. See C<SvIV_set>. |
672994ce |
732 | |
954c1994 |
733 | =for apidoc Am|void|SvCUR_set|SV* sv|STRLEN len |
20799e15 |
734 | Set the current length of the string which is in the SV. See C<SvCUR> |
735 | and C<SvIV_set>. |
672994ce |
736 | |
737 | =for apidoc Am|void|SvLEN_set|SV* sv|STRLEN len |
20799e15 |
738 | Set the actual length of the string which is in the SV. See C<SvIV_set>. |
954c1994 |
739 | |
740 | =cut |
741 | */ |
742 | |
79072805 |
743 | #define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK)) |
748a9306 |
744 | #define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK)) |
a0d0e21e |
745 | #define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \ |
25da4f38 |
746 | SVp_IOK|SVp_NOK|SVf_IVisUV)) |
79072805 |
747 | |
5dc8bdac |
748 | #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) |
29e97371 |
749 | #define assert_not_ROK(sv) ({assert(!SvROK(sv) || !SvRV(sv));}), |
f7877b28 |
750 | #define assert_not_glob(sv) ({assert(!isGV_with_GP(sv));}), |
906ed6d6 |
751 | #else |
54866b45 |
752 | #define assert_not_ROK(sv) |
f7877b28 |
753 | #define assert_not_glob(sv) |
906ed6d6 |
754 | #endif |
755 | |
1cb9cd50 |
756 | #define SvOK(sv) ((SvTYPE(sv) == SVt_BIND) \ |
757 | ? (SvFLAGS(SvRV(sv)) & SVf_OK) \ |
758 | : (SvFLAGS(sv) & SVf_OK)) |
f7877b28 |
759 | #define SvOK_off(sv) (assert_not_ROK(sv) assert_not_glob(sv) \ |
dd2eae66 |
760 | SvFLAGS(sv) &= ~(SVf_OK| \ |
d41ff1b8 |
761 | SVf_IVisUV|SVf_UTF8), \ |
25da4f38 |
762 | SvOOK_off(sv)) |
54866b45 |
763 | #define SvOK_off_exc_UV(sv) (assert_not_ROK(sv) \ |
dd2eae66 |
764 | SvFLAGS(sv) &= ~(SVf_OK| \ |
d41ff1b8 |
765 | SVf_UTF8), \ |
a0d0e21e |
766 | SvOOK_off(sv)) |
79072805 |
767 | |
8990e307 |
768 | #define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) |
769 | #define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK) |
f7877b28 |
770 | #define SvIOKp_on(sv) (assert_not_glob(sv) SvRELEASE_IVX(sv), \ |
765f542d |
771 | SvFLAGS(sv) |= SVp_IOK) |
8990e307 |
772 | #define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK) |
f7877b28 |
773 | #define SvNOKp_on(sv) (assert_not_glob(sv) SvFLAGS(sv) |= SVp_NOK) |
8990e307 |
774 | #define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK) |
f7877b28 |
775 | #define SvPOKp_on(sv) (assert_not_ROK(sv) assert_not_glob(sv) \ |
906ed6d6 |
776 | SvFLAGS(sv) |= SVp_POK) |
463ee0b2 |
777 | |
79072805 |
778 | #define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK) |
f7877b28 |
779 | #define SvIOK_on(sv) (assert_not_glob(sv) SvRELEASE_IVX(sv), \ |
765f542d |
780 | SvFLAGS(sv) |= (SVf_IOK|SVp_IOK)) |
25da4f38 |
781 | #define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK|SVf_IVisUV)) |
0c34ef67 |
782 | #define SvIOK_only(sv) (SvOK_off(sv), \ |
a0d0e21e |
783 | SvFLAGS(sv) |= (SVf_IOK|SVp_IOK)) |
f7877b28 |
784 | #define SvIOK_only_UV(sv) (assert_not_glob(sv) SvOK_off_exc_UV(sv), \ |
25da4f38 |
785 | SvFLAGS(sv) |= (SVf_IOK|SVp_IOK)) |
70401c6b |
786 | |
25da4f38 |
787 | #define SvIOK_UV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \ |
788 | == (SVf_IOK|SVf_IVisUV)) |
28e5dec8 |
789 | #define SvUOK(sv) SvIOK_UV(sv) |
25da4f38 |
790 | #define SvIOK_notUV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \ |
791 | == SVf_IOK) |
792 | |
793 | #define SvIsUV(sv) (SvFLAGS(sv) & SVf_IVisUV) |
794 | #define SvIsUV_on(sv) (SvFLAGS(sv) |= SVf_IVisUV) |
795 | #define SvIsUV_off(sv) (SvFLAGS(sv) &= ~SVf_IVisUV) |
79072805 |
796 | |
797 | #define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK) |
f7877b28 |
798 | #define SvNOK_on(sv) (assert_not_glob(sv) \ |
799 | SvFLAGS(sv) |= (SVf_NOK|SVp_NOK)) |
8990e307 |
800 | #define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK)) |
0c34ef67 |
801 | #define SvNOK_only(sv) (SvOK_off(sv), \ |
a0d0e21e |
802 | SvFLAGS(sv) |= (SVf_NOK|SVp_NOK)) |
79072805 |
803 | |
914184e1 |
804 | /* |
fbf9f983 |
805 | =for apidoc Am|U32|SvUTF8|SV* sv |
806 | Returns a U32 value indicating whether the SV contains UTF-8 encoded data. |
cd028baa |
807 | Call this after SvPV() in case any call to string overloading updates the |
808 | internal flag. |
914184e1 |
809 | |
810 | =for apidoc Am|void|SvUTF8_on|SV *sv |
1e54db1a |
811 | Turn on the UTF-8 status of an SV (the data is not changed, just the flag). |
d5ce4a7c |
812 | Do not use frivolously. |
914184e1 |
813 | |
814 | =for apidoc Am|void|SvUTF8_off|SV *sv |
1e54db1a |
815 | Unsets the UTF-8 status of an SV. |
914184e1 |
816 | |
817 | =for apidoc Am|void|SvPOK_only_UTF8|SV* sv |
d5ce4a7c |
818 | Tells an SV that it is a string and disables all other OK bits, |
1e54db1a |
819 | and leaves the UTF-8 status as it was. |
f1a1024e |
820 | |
914184e1 |
821 | =cut |
822 | */ |
823 | |
7a5fd60d |
824 | /* Ensure the return value of this macro does not clash with the GV_ADD* flags |
825 | in gv.h: */ |
a7cb1f99 |
826 | #define SvUTF8(sv) (SvFLAGS(sv) & SVf_UTF8) |
827 | #define SvUTF8_on(sv) (SvFLAGS(sv) |= (SVf_UTF8)) |
828 | #define SvUTF8_off(sv) (SvFLAGS(sv) &= ~(SVf_UTF8)) |
5bc28da9 |
829 | |
79072805 |
830 | #define SvPOK(sv) (SvFLAGS(sv) & SVf_POK) |
f7877b28 |
831 | #define SvPOK_on(sv) (assert_not_ROK(sv) assert_not_glob(sv) \ |
906ed6d6 |
832 | SvFLAGS(sv) |= (SVf_POK|SVp_POK)) |
8990e307 |
833 | #define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK)) |
f7877b28 |
834 | #define SvPOK_only(sv) (assert_not_ROK(sv) assert_not_glob(sv) \ |
dd2eae66 |
835 | SvFLAGS(sv) &= ~(SVf_OK| \ |
d41ff1b8 |
836 | SVf_IVisUV|SVf_UTF8), \ |
837 | SvFLAGS(sv) |= (SVf_POK|SVp_POK)) |
f7877b28 |
838 | #define SvPOK_only_UTF8(sv) (assert_not_ROK(sv) assert_not_glob(sv) \ |
dd2eae66 |
839 | SvFLAGS(sv) &= ~(SVf_OK| \ |
d41ff1b8 |
840 | SVf_IVisUV), \ |
a0d0e21e |
841 | SvFLAGS(sv) |= (SVf_POK|SVp_POK)) |
79072805 |
842 | |
4f2da183 |
843 | #define SvVOK(sv) (SvMAGICAL(sv) \ |
b0a11fe1 |
844 | && mg_find(sv,PERL_MAGIC_vstring)) |
845 | /* returns the vstring magic, if any */ |
846 | #define SvVSTRING_mg(sv) (SvMAGICAL(sv) \ |
4f2da183 |
847 | ? mg_find(sv,PERL_MAGIC_vstring) : NULL) |
b0a11fe1 |
848 | |
79072805 |
849 | #define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK) |
155aba94 |
850 | #define SvOOK_on(sv) ((void)SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK) |
0c34ef67 |
851 | #define SvOOK_off(sv) ((void)(SvOOK(sv) && sv_backoff(sv))) |
79072805 |
852 | |
a0d0e21e |
853 | #define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE) |
854 | #define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE) |
855 | #define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE) |
856 | |
ed6116ce |
857 | #define SvROK(sv) (SvFLAGS(sv) & SVf_ROK) |
a0d0e21e |
858 | #define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK) |
dd2eae66 |
859 | #define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK)) |
79072805 |
860 | |
8990e307 |
861 | #define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG)) |
862 | #define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG)) |
863 | #define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~(SVs_GMG|SVs_SMG|SVs_RMG)) |
79072805 |
864 | |
8990e307 |
865 | #define SvGMAGICAL(sv) (SvFLAGS(sv) & SVs_GMG) |
866 | #define SvGMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_GMG) |
867 | #define SvGMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_GMG) |
ed6116ce |
868 | |
8990e307 |
869 | #define SvSMAGICAL(sv) (SvFLAGS(sv) & SVs_SMG) |
870 | #define SvSMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_SMG) |
871 | #define SvSMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_SMG) |
ed6116ce |
872 | |
8990e307 |
873 | #define SvRMAGICAL(sv) (SvFLAGS(sv) & SVs_RMG) |
874 | #define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG) |
875 | #define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG) |
ed6116ce |
876 | |
dd2eae66 |
877 | #define SvAMAGIC(sv) (SvROK(sv) && (SvFLAGS(SvRV(sv)) & SVf_AMAGIC)) |
878 | #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) |
d4c19fe8 |
879 | # define SvAMAGIC_on(sv) ({ SV * const kloink = sv; \ |
dd2eae66 |
880 | assert(SvROK(kloink)); \ |
881 | SvFLAGS(SvRV(kloink)) |= SVf_AMAGIC; \ |
882 | }) |
d4c19fe8 |
883 | # define SvAMAGIC_off(sv) ({ SV * const kloink = sv; \ |
dd2eae66 |
884 | if(SvROK(kloink)) \ |
885 | SvFLAGS(SvRV(kloink)) &= ~SVf_AMAGIC;\ |
886 | }) |
887 | #else |
888 | # define SvAMAGIC_on(sv) (SvFLAGS(SvRV(sv)) |= SVf_AMAGIC) |
ce046328 |
889 | # define SvAMAGIC_off(sv) \ |
890 | (SvROK(sv) && (SvFLAGS(SvRV(sv)) &= ~SVf_AMAGIC)) |
dd2eae66 |
891 | #endif |
a0d0e21e |
892 | |
d34786ba |
893 | /* |
894 | =for apidoc Am|char*|SvGAMAGIC|SV* sv |
895 | |
896 | Returns true if the SV has get magic or overloading. If either is true then |
897 | the scalar is active data, and has the potential to return a new value every |
898 | time it is accessed. Hence you must be careful to only read it once per user |
899 | logical operation and work with that returned value. If neither is true then |
900 | the scalar's value cannot change unless written to. |
901 | |
902 | =cut |
903 | */ |
904 | |
dd2eae66 |
905 | #define SvGAMAGIC(sv) (SvGMAGICAL(sv) || SvAMAGIC(sv)) |
1426bbf4 |
906 | |
3280af22 |
907 | #define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash)) |
a0d0e21e |
908 | |
810b8aa5 |
909 | #define SvWEAKREF(sv) ((SvFLAGS(sv) & (SVf_ROK|SVprv_WEAKREF)) \ |
910 | == (SVf_ROK|SVprv_WEAKREF)) |
911 | #define SvWEAKREF_on(sv) (SvFLAGS(sv) |= (SVf_ROK|SVprv_WEAKREF)) |
912 | #define SvWEAKREF_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVprv_WEAKREF)) |
913 | |
1ccdb730 |
914 | #define SvPCS_IMPORTED(sv) ((SvFLAGS(sv) & (SVf_ROK|SVprv_PCS_IMPORTED)) \ |
915 | == (SVf_ROK|SVprv_PCS_IMPORTED)) |
916 | #define SvPCS_IMPORTED_on(sv) (SvFLAGS(sv) |= (SVf_ROK|SVprv_PCS_IMPORTED)) |
917 | #define SvPCS_IMPORTED_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVprv_PCS_IMPORTED)) |
918 | |
a0d0e21e |
919 | #define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST) |
ed6116ce |
920 | |
d9d18af6 |
921 | #define SvPADSTALE(sv) (SvFLAGS(sv) & SVs_PADSTALE) |
922 | #define SvPADSTALE_on(sv) (SvFLAGS(sv) |= SVs_PADSTALE) |
923 | #define SvPADSTALE_off(sv) (SvFLAGS(sv) &= ~SVs_PADSTALE) |
924 | |
8990e307 |
925 | #define SvPADTMP(sv) (SvFLAGS(sv) & SVs_PADTMP) |
235cc2e3 |
926 | #define SvPADTMP_on(sv) (SvFLAGS(sv) |= SVs_PADTMP) |
8990e307 |
927 | #define SvPADTMP_off(sv) (SvFLAGS(sv) &= ~SVs_PADTMP) |
ed6116ce |
928 | |
8990e307 |
929 | #define SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY) |
235cc2e3 |
930 | #define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY) |
ed6116ce |
931 | |
8990e307 |
932 | #define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP) |
933 | #define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP) |
934 | #define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP) |
79072805 |
935 | |
8990e307 |
936 | #define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT) |
937 | #define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT) |
938 | #define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT) |
79072805 |
939 | |
8990e307 |
940 | #define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY) |
941 | #define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY) |
942 | #define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY) |
79072805 |
943 | |
180488f8 |
944 | #define SvSCREAM(sv) ((SvFLAGS(sv) & (SVp_SCREAM|SVp_POK)) == (SVp_SCREAM|SVp_POK)) |
8990e307 |
945 | #define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVp_SCREAM) |
946 | #define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVp_SCREAM) |
79072805 |
947 | |
8990e307 |
948 | #define SvCOMPILED(sv) (SvFLAGS(sv) & SVpfm_COMPILED) |
949 | #define SvCOMPILED_on(sv) (SvFLAGS(sv) |= SVpfm_COMPILED) |
950 | #define SvCOMPILED_off(sv) (SvFLAGS(sv) &= ~SVpfm_COMPILED) |
79072805 |
951 | |
25da4f38 |
952 | #define SvEVALED(sv) (SvFLAGS(sv) & SVrepl_EVAL) |
953 | #define SvEVALED_on(sv) (SvFLAGS(sv) |= SVrepl_EVAL) |
954 | #define SvEVALED_off(sv) (SvFLAGS(sv) &= ~SVrepl_EVAL) |
955 | |
85efc3a5 |
956 | #if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) |
85ffbbb0 |
957 | # define SvVALID(sv) ({ SV *const thwacke = (SV *) (sv); \ |
958 | if (SvFLAGS(thwacke) & SVpbm_VALID) \ |
959 | assert(!isGV_with_GP(thwacke)); \ |
960 | (SvFLAGS(thwacke) & SVpbm_VALID); \ |
961 | }) |
962 | # define SvVALID_on(sv) ({ SV *const thwacke = (SV *) (sv); \ |
963 | assert(!isGV_with_GP(thwacke)); \ |
964 | (SvFLAGS(thwacke) |= SVpbm_VALID); \ |
965 | }) |
966 | # define SvVALID_off(sv) ({ SV *const thwacke = (SV *) (sv); \ |
967 | assert(!isGV_with_GP(thwacke)); \ |
968 | (SvFLAGS(thwacke) &= ~SVpbm_VALID); \ |
969 | }) |
970 | |
85efc3a5 |
971 | # define SvTAIL(sv) ({ SV *const _svi = (SV *) (sv); \ |
972 | assert(SvTYPE(_svi) != SVt_PVAV); \ |
973 | assert(SvTYPE(_svi) != SVt_PVHV); \ |
78d0cf80 |
974 | (SvFLAGS(sv) & (SVpbm_TAIL|SVpbm_VALID)) \ |
975 | == (SVpbm_TAIL|SVpbm_VALID); \ |
85efc3a5 |
976 | }) |
977 | #else |
85ffbbb0 |
978 | # define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID) |
979 | # define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID) |
980 | # define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID) |
78d0cf80 |
981 | # define SvTAIL(sv) ((SvFLAGS(sv) & (SVpbm_TAIL|SVpbm_VALID)) \ |
fe901688 |
982 | == (SVpbm_TAIL|SVpbm_VALID)) |
78d0cf80 |
983 | |
85efc3a5 |
984 | #endif |
8990e307 |
985 | #define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL) |
986 | #define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL) |
987 | |
8990e307 |
988 | |
1cc8b4c5 |
989 | #ifdef USE_ITHREADS |
990 | /* The following uses the FAKE flag to show that a regex pointer is infact |
8ca6097c |
991 | its own offset in the regexpad for ithreads */ |
1cc8b4c5 |
992 | #define SvREPADTMP(sv) (SvFLAGS(sv) & SVf_FAKE) |
993 | #define SvREPADTMP_on(sv) (SvFLAGS(sv) |= SVf_FAKE) |
994 | #define SvREPADTMP_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE) |
995 | #endif |
996 | |
075bae1e |
997 | #define SvPAD_TYPED(sv) \ |
998 | ((SvFLAGS(sv) & (SVpad_NAME|SVpad_TYPED)) == (SVpad_NAME|SVpad_TYPED)) |
00b1698f |
999 | |
075bae1e |
1000 | #define SvPAD_OUR(sv) \ |
1001 | ((SvFLAGS(sv) & (SVpad_NAME|SVpad_OUR)) == (SVpad_NAME|SVpad_OUR)) |
00b1698f |
1002 | |
952306ac |
1003 | #define SvPAD_STATE(sv) \ |
1004 | ((SvFLAGS(sv) & (SVpad_NAME|SVpad_STATE)) == (SVpad_NAME|SVpad_STATE)) |
a72e56b0 |
1005 | |
1006 | #if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) |
1007 | # define SvPAD_TYPED_on(sv) ({ \ |
1008 | SV *const whap = (SV *) (sv); \ |
1009 | assert(SvTYPE(whap) == SVt_PVMG); \ |
1010 | (SvFLAGS(whap) |= SVpad_NAME|SVpad_TYPED); \ |
1011 | }) |
1012 | #define SvPAD_OUR_on(sv) ({ \ |
1013 | SV *const whap = (SV *) (sv); \ |
1014 | assert(SvTYPE(whap) == SVt_PVMG); \ |
1015 | (SvFLAGS(whap) |= SVpad_NAME|SVpad_OUR); \ |
1016 | }) |
1017 | #define SvPAD_STATE_on(sv) ({ \ |
1018 | SV *const whap = (SV *) (sv); \ |
1019 | assert(SvTYPE(whap) == SVt_PVNV || SvTYPE(whap) == SVt_PVMG); \ |
1020 | (SvFLAGS(whap) |= SVpad_NAME|SVpad_STATE); \ |
1021 | }) |
1022 | #else |
1023 | # define SvPAD_TYPED_on(sv) (SvFLAGS(sv) |= SVpad_NAME|SVpad_TYPED) |
1024 | # define SvPAD_OUR_on(sv) (SvFLAGS(sv) |= SVpad_NAME|SVpad_OUR) |
1025 | # define SvPAD_STATE_on(sv) (SvFLAGS(sv) |= SVpad_NAME|SVpad_STATE) |
1026 | #endif |
952306ac |
1027 | |
73d95100 |
1028 | #define SvOURSTASH(sv) \ |
e736a858 |
1029 | (SvPAD_OUR(sv) ? ((XPVMG*) SvANY(sv))->xmg_u.xmg_ourstash : NULL) |
73d95100 |
1030 | #define SvOURSTASH_set(sv, st) \ |
e736a858 |
1031 | STMT_START { \ |
2892acdb |
1032 | assert(SvTYPE(sv) == SVt_PVMG); \ |
e736a858 |
1033 | ((XPVMG*) SvANY(sv))->xmg_u.xmg_ourstash = st; \ |
035dab74 |
1034 | } STMT_END |
1035 | |
b162af07 |
1036 | #ifdef PERL_DEBUG_COW |
b162af07 |
1037 | #else |
b162af07 |
1038 | #endif |
ed6116ce |
1039 | #define SvRVx(sv) SvRV(sv) |
1040 | |
f599b64b |
1041 | #ifdef PERL_DEBUG_COW |
8ed30cc1 |
1042 | /* Need -0.0 for SvNVX to preserve IEEE FP "negative zero" because |
1043 | +0.0 + -0.0 => +0.0 but -0.0 + -0.0 => -0.0 */ |
771ba71a |
1044 | # define SvIVX(sv) (0 + ((XPVIV*) SvANY(sv))->xiv_iv) |
1045 | # define SvUVX(sv) (0 + ((XPVUV*) SvANY(sv))->xuv_uv) |
58430790 |
1046 | # define SvNVX(sv) (-0.0 + ((XPVNV*) SvANY(sv))->xnv_u.xnv_nv) |
ac09da3b |
1047 | # define SvRV(sv) (0 + (sv)->sv_u.svu_rv) |
c0e1089a |
1048 | /* Don't test the core XS code yet. */ |
771ba71a |
1049 | # if defined (PERL_CORE) && PERL_DEBUG_COW > 1 |
1050 | # define SvPVX(sv) (0 + (assert(!SvREADONLY(sv)), (sv)->sv_u.svu_pv)) |
1051 | # else |
1052 | # define SvPVX(sv) SvPVX_mutable(sv) |
1053 | # endif |
771ba71a |
1054 | # define SvCUR(sv) (0 + ((XPV*) SvANY(sv))->xpv_cur) |
1055 | # define SvLEN(sv) (0 + ((XPV*) SvANY(sv))->xpv_len) |
1056 | # define SvEND(sv) ((sv)->sv_u.svu_pv + ((XPV*)SvANY(sv))->xpv_cur) |
1057 | |
1058 | # ifdef DEBUGGING |
064cf529 |
1059 | # define SvMAGIC(sv) (0 + *(assert(SvTYPE(sv) >= SVt_PVMG), &((XPVMG*) SvANY(sv))->xmg_u.xmg_magic)) |
1060 | # define SvSTASH(sv) (0 + *(assert(SvTYPE(sv) >= SVt_PVMG), &((XPVMG*) SvANY(sv))->xmg_stash)) |
03687789 |
1061 | # else |
064cf529 |
1062 | # define SvMAGIC(sv) (0 + ((XPVMG*) SvANY(sv))->xmg_u.xmg_magic) |
1063 | # define SvSTASH(sv) (0 + ((XPVMG*) SvANY(sv))->xmg_stash) |
03687789 |
1064 | # endif |
f599b64b |
1065 | #else |
771ba71a |
1066 | # define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len |
1067 | # define SvEND(sv) ((sv)->sv_u.svu_pv + ((XPV*)SvANY(sv))->xpv_cur) |
1068 | |
05ef5f8f |
1069 | # if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) |
1070 | /* These get expanded inside other macros that already use a variable _sv */ |
f7877b28 |
1071 | # define SvPVX(sv) \ |
55c1d76f |
1072 | (*({ SV *const _svi = (SV *) (sv); \ |
f7877b28 |
1073 | assert(SvTYPE(_svi) >= SVt_PV); \ |
1074 | assert(SvTYPE(_svi) != SVt_PVAV); \ |
1075 | assert(SvTYPE(_svi) != SVt_PVHV); \ |
1076 | assert(!isGV_with_GP(_svi)); \ |
1077 | &((_svi)->sv_u.svu_pv); \ |
1078 | })) |
08002bbf |
1079 | # define SvCUR(sv) \ |
55c1d76f |
1080 | (*({ SV *const _svi = (SV *) (sv); \ |
08002bbf |
1081 | assert(SvTYPE(_svi) >= SVt_PV); \ |
1082 | assert(SvTYPE(_svi) != SVt_PVAV); \ |
1083 | assert(SvTYPE(_svi) != SVt_PVHV); \ |
1084 | assert(!isGV_with_GP(_svi)); \ |
1085 | &(((XPV*) SvANY(_svi))->xpv_cur); \ |
1086 | })) |
05ef5f8f |
1087 | # define SvIVX(sv) \ |
55c1d76f |
1088 | (*({ SV *const _svi = (SV *) (sv); \ |
05ef5f8f |
1089 | assert(SvTYPE(_svi) == SVt_IV || SvTYPE(_svi) >= SVt_PVIV); \ |
675eb423 |
1090 | assert(SvTYPE(_svi) != SVt_PVAV); \ |
1091 | assert(SvTYPE(_svi) != SVt_PVHV); \ |
bb172083 |
1092 | assert(SvTYPE(_svi) != SVt_PVCV); \ |
27bd069f |
1093 | assert(!isGV_with_GP(_svi)); \ |
05ef5f8f |
1094 | &(((XPVIV*) SvANY(_svi))->xiv_iv); \ |
1095 | })) |
1096 | # define SvUVX(sv) \ |
55c1d76f |
1097 | (*({ SV *const _svi = (SV *) (sv); \ |
05ef5f8f |
1098 | assert(SvTYPE(_svi) == SVt_IV || SvTYPE(_svi) >= SVt_PVIV); \ |
675eb423 |
1099 | assert(SvTYPE(_svi) != SVt_PVAV); \ |
1100 | assert(SvTYPE(_svi) != SVt_PVHV); \ |
bb172083 |
1101 | assert(SvTYPE(_svi) != SVt_PVCV); \ |
27bd069f |
1102 | assert(!isGV_with_GP(_svi)); \ |
05ef5f8f |
1103 | &(((XPVUV*) SvANY(_svi))->xuv_uv); \ |
1104 | })) |
1105 | # define SvNVX(sv) \ |
55c1d76f |
1106 | (*({ SV *const _svi = (SV *) (sv); \ |
675eb423 |
1107 | assert(SvTYPE(_svi) == SVt_NV || SvTYPE(_svi) >= SVt_PVNV); \ |
1108 | assert(SvTYPE(_svi) != SVt_PVAV); \ |
1109 | assert(SvTYPE(_svi) != SVt_PVHV); \ |
281ab51b |
1110 | assert(SvTYPE(_svi) != SVt_PVCV); \ |
3038937b |
1111 | assert(SvTYPE(_svi) != SVt_PVFM); \ |
27bd069f |
1112 | assert(!isGV_with_GP(_svi)); \ |
58430790 |
1113 | &(((XPVNV*) SvANY(_svi))->xnv_u.xnv_nv); \ |
05ef5f8f |
1114 | })) |
ac09da3b |
1115 | # define SvRV(sv) \ |
1116 | (*({ SV *const _svi = (SV *) (sv); \ |
4df7f6af |
1117 | assert(SvTYPE(_svi) >= SVt_PV || SvTYPE(_svi) == SVt_IV); \ |
ac09da3b |
1118 | assert(SvTYPE(_svi) != SVt_PVAV); \ |
1119 | assert(SvTYPE(_svi) != SVt_PVHV); \ |
1120 | assert(SvTYPE(_svi) != SVt_PVCV); \ |
1121 | assert(SvTYPE(_svi) != SVt_PVFM); \ |
1122 | assert(!isGV_with_GP(_svi)); \ |
1123 | &((_svi)->sv_u.svu_rv); \ |
1124 | })) |
05ef5f8f |
1125 | # define SvMAGIC(sv) \ |
55c1d76f |
1126 | (*({ SV *const _svi = (SV *) (sv); \ |
05ef5f8f |
1127 | assert(SvTYPE(_svi) >= SVt_PVMG); \ |
885ffcb3 |
1128 | if(SvTYPE(_svi) == SVt_PVMG) \ |
1129 | assert(!SvPAD_OUR(_svi)); \ |
e736a858 |
1130 | &(((XPVMG*) SvANY(_svi))->xmg_u.xmg_magic); \ |
05ef5f8f |
1131 | })) |
1132 | # define SvSTASH(sv) \ |
55c1d76f |
1133 | (*({ SV *const _svi = (SV *) (sv); \ |
05ef5f8f |
1134 | assert(SvTYPE(_svi) >= SVt_PVMG); \ |
1135 | &(((XPVMG*) SvANY(_svi))->xmg_stash); \ |
1136 | })) |
03687789 |
1137 | # else |
08002bbf |
1138 | # define SvPVX(sv) ((sv)->sv_u.svu_pv) |
1139 | # define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur |
05ef5f8f |
1140 | # define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv |
1141 | # define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv |
58430790 |
1142 | # define SvNVX(sv) ((XPVNV*) SvANY(sv))->xnv_u.xnv_nv |
ac09da3b |
1143 | # define SvRV(sv) ((sv)->sv_u.svu_rv) |
e736a858 |
1144 | # define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_u.xmg_magic |
771ba71a |
1145 | # define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash |
03687789 |
1146 | # endif |
62703e72 |
1147 | #endif |
1148 | |
06c0cc96 |
1149 | #ifndef PERL_POISON |
bb496845 |
1150 | /* Given that these two are new, there can't be any existing code using them |
1151 | * as LVALUEs */ |
06c0cc96 |
1152 | # define SvPVX_mutable(sv) (0 + (sv)->sv_u.svu_pv) |
1153 | # define SvPVX_const(sv) ((const char*)(0 + (sv)->sv_u.svu_pv)) |
1154 | #else |
1155 | /* Except for the poison code, which uses & to scribble over the pointer after |
1156 | free() is called. */ |
1157 | # define SvPVX_mutable(sv) ((sv)->sv_u.svu_pv) |
1158 | # define SvPVX_const(sv) ((const char*)((sv)->sv_u.svu_pv)) |
1159 | #endif |
bb496845 |
1160 | |
62703e72 |
1161 | #define SvIVXx(sv) SvIVX(sv) |
1162 | #define SvUVXx(sv) SvUVX(sv) |
1163 | #define SvNVXx(sv) SvNVX(sv) |
1164 | #define SvPVXx(sv) SvPVX(sv) |
1165 | #define SvLENx(sv) SvLEN(sv) |
1166 | #define SvENDx(sv) ((PL_Sv = (sv)), SvEND(PL_Sv)) |
1167 | |
1168 | |
28e5dec8 |
1169 | /* Ask a scalar nicely to try to become an IV, if possible. |
1170 | Not guaranteed to stay returning void */ |
1171 | /* Macro won't actually call sv_2iv if already IOK */ |
1172 | #define SvIV_please(sv) \ |
1173 | STMT_START {if (!SvIOKp(sv) && (SvNOK(sv) || SvPOK(sv))) \ |
1174 | (void) SvIV(sv); } STMT_END |
79072805 |
1175 | #define SvIV_set(sv, val) \ |
80b92232 |
1176 | STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \ |
a0905512 |
1177 | assert(SvTYPE(sv) != SVt_PVAV); \ |
1178 | assert(SvTYPE(sv) != SVt_PVHV); \ |
1179 | assert(SvTYPE(sv) != SVt_PVCV); \ |
08002bbf |
1180 | assert(!isGV_with_GP(sv)); \ |
b19bbeda |
1181 | (((XPVIV*) SvANY(sv))->xiv_iv = (val)); } STMT_END |
79072805 |
1182 | #define SvNV_set(sv, val) \ |
80b92232 |
1183 | STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \ |
7ffec4a4 |
1184 | assert(SvTYPE(sv) != SVt_PVAV); assert(SvTYPE(sv) != SVt_PVHV); \ |
a0905512 |
1185 | assert(SvTYPE(sv) != SVt_PVCV); assert(SvTYPE(sv) != SVt_PVFM); \ |
08002bbf |
1186 | assert(!isGV_with_GP(sv)); \ |
58430790 |
1187 | (((XPVNV*)SvANY(sv))->xnv_u.xnv_nv = (val)); } STMT_END |
79072805 |
1188 | #define SvPV_set(sv, val) \ |
80b92232 |
1189 | STMT_START { assert(SvTYPE(sv) >= SVt_PV); \ |
9c6bc640 |
1190 | assert(SvTYPE(sv) != SVt_PVAV); \ |
797c7171 |
1191 | assert(SvTYPE(sv) != SVt_PVHV); \ |
08002bbf |
1192 | assert(!isGV_with_GP(sv)); \ |
339049b0 |
1193 | ((sv)->sv_u.svu_pv = (val)); } STMT_END |
607fa7f2 |
1194 | #define SvUV_set(sv, val) \ |
1195 | STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \ |
a0905512 |
1196 | assert(SvTYPE(sv) != SVt_PVAV); \ |
1197 | assert(SvTYPE(sv) != SVt_PVHV); \ |
1198 | assert(SvTYPE(sv) != SVt_PVCV); \ |
08002bbf |
1199 | assert(!isGV_with_GP(sv)); \ |
607fa7f2 |
1200 | (((XPVUV*)SvANY(sv))->xuv_uv = (val)); } STMT_END |
b162af07 |
1201 | #define SvRV_set(sv, val) \ |
4df7f6af |
1202 | STMT_START { assert(SvTYPE(sv) >= SVt_PV || SvTYPE(sv) == SVt_IV); \ |
ac09da3b |
1203 | assert(SvTYPE(sv) != SVt_PVAV); \ |
1204 | assert(SvTYPE(sv) != SVt_PVHV); \ |
1205 | assert(SvTYPE(sv) != SVt_PVCV); \ |
1206 | assert(SvTYPE(sv) != SVt_PVFM); \ |
08002bbf |
1207 | assert(!isGV_with_GP(sv)); \ |
339049b0 |
1208 | ((sv)->sv_u.svu_rv = (val)); } STMT_END |
b162af07 |
1209 | #define SvMAGIC_set(sv, val) \ |
1210 | STMT_START { assert(SvTYPE(sv) >= SVt_PVMG); \ |
e736a858 |
1211 | (((XPVMG*)SvANY(sv))->xmg_u.xmg_magic = (val)); } STMT_END |
b162af07 |
1212 | #define SvSTASH_set(sv, val) \ |
1213 | STMT_START { assert(SvTYPE(sv) >= SVt_PVMG); \ |
1214 | (((XPVMG*) SvANY(sv))->xmg_stash = (val)); } STMT_END |
79072805 |
1215 | #define SvCUR_set(sv, val) \ |
80b92232 |
1216 | STMT_START { assert(SvTYPE(sv) >= SVt_PV); \ |
a0905512 |
1217 | assert(SvTYPE(sv) != SVt_PVAV); \ |
1218 | assert(SvTYPE(sv) != SVt_PVHV); \ |
08002bbf |
1219 | assert(!isGV_with_GP(sv)); \ |
b162af07 |
1220 | (((XPV*) SvANY(sv))->xpv_cur = (val)); } STMT_END |
79072805 |
1221 | #define SvLEN_set(sv, val) \ |
80b92232 |
1222 | STMT_START { assert(SvTYPE(sv) >= SVt_PV); \ |
a0905512 |
1223 | assert(SvTYPE(sv) != SVt_PVAV); \ |
1224 | assert(SvTYPE(sv) != SVt_PVHV); \ |
f7877b28 |
1225 | assert(!isGV_with_GP(sv)); \ |
b162af07 |
1226 | (((XPV*) SvANY(sv))->xpv_len = (val)); } STMT_END |
7ae8ee9e |
1227 | #define SvEND_set(sv, val) \ |
1228 | STMT_START { assert(SvTYPE(sv) >= SVt_PV); \ |
1229 | (SvCUR(sv) = (val) - SvPVX(sv)); } STMT_END |
79072805 |
1230 | |
b7e9a5c2 |
1231 | #define SvPV_renew(sv,n) \ |
1da4ca5f |
1232 | STMT_START { SvLEN_set(sv, n); \ |
1233 | SvPV_set((sv), (MEM_WRAP_CHECK_(n,char) \ |
1234 | (char*)saferealloc((Malloc_t)SvPVX(sv), \ |
1235 | (MEM_SIZE)((n))))); \ |
1236 | } STMT_END |
1237 | |
1238 | #define SvPV_shrink_to_cur(sv) STMT_START { \ |
1239 | const STRLEN _lEnGtH = SvCUR(sv) + 1; \ |
1240 | SvPV_renew(sv, _lEnGtH); \ |
1241 | } STMT_END |
b7e9a5c2 |
1242 | |
771ba71a |
1243 | #define SvPV_free(sv) \ |
1244 | STMT_START { \ |
1245 | assert(SvTYPE(sv) >= SVt_PV); \ |
1246 | if (SvLEN(sv)) { \ |
e537ac38 |
1247 | assert(!SvROK(sv)); \ |
771ba71a |
1248 | if(SvOOK(sv)) { \ |
1249 | SvPV_set(sv, SvPVX_mutable(sv) - SvIVX(sv)); \ |
1250 | SvFLAGS(sv) &= ~SVf_OOK; \ |
1251 | } \ |
1252 | Safefree(SvPVX(sv)); \ |
1253 | } \ |
1254 | } STMT_END |
8bd4d4c5 |
1255 | |
43230e26 |
1256 | #ifdef PERL_CORE |
1257 | /* Code that crops up in three places to take a scalar and ready it to hold |
1258 | a reference */ |
1259 | # define prepare_SV_for_RV(sv) \ |
1260 | STMT_START { \ |
1261 | if (SvTYPE(sv) < SVt_PV && SvTYPE(sv) != SVt_IV) \ |
1262 | sv_upgrade(sv, SVt_IV); \ |
662f1f9e |
1263 | else if (SvTYPE(sv) >= SVt_PV) { \ |
43230e26 |
1264 | SvPV_free(sv); \ |
1265 | SvLEN_set(sv, 0); \ |
1266 | SvCUR_set(sv, 0); \ |
1267 | } \ |
1268 | } STMT_END |
1269 | #endif |
373b357f |
1270 | |
8eeaf79a |
1271 | #define PERL_FBM_TABLE_OFFSET 1 /* Number of bytes between EOS and table */ |
373b357f |
1272 | |
1273 | /* SvPOKp not SvPOK in the assertion because the string can be tainted! eg |
1274 | perl -T -e '/$^X/' |
1275 | */ |
60c8298a |
1276 | #if defined (DEBUGGING) && defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) |
8eeaf79a |
1277 | # define BmFLAGS(sv) \ |
1278 | (*({ SV *const uggh = (SV *) (sv); \ |
1279 | assert(SvTYPE(uggh) == SVt_PVGV); \ |
1280 | assert(SvVALID(uggh)); \ |
1281 | &(((XPVGV*) SvANY(uggh))->xnv_u.xbm_s.xbm_flags); \ |
1282 | })) |
60c8298a |
1283 | # define BmRARE(sv) \ |
b4f6c04b |
1284 | (*({ SV *const uggh = (SV *) (sv); \ |
cecf5685 |
1285 | assert(SvTYPE(uggh) == SVt_PVGV); \ |
b4f6c04b |
1286 | assert(SvVALID(uggh)); \ |
8eeaf79a |
1287 | &(((XPVGV*) SvANY(uggh))->xnv_u.xbm_s.xbm_rare); \ |
60c8298a |
1288 | })) |
1289 | # define BmUSEFUL(sv) \ |
b4f6c04b |
1290 | (*({ SV *const uggh = (SV *) (sv); \ |
cecf5685 |
1291 | assert(SvTYPE(uggh) == SVt_PVGV); \ |
b4f6c04b |
1292 | assert(SvVALID(uggh)); \ |
1293 | assert(!SvIOK(uggh)); \ |
cecf5685 |
1294 | &(((XPVGV*) SvANY(uggh))->xiv_u.xivu_i32); \ |
60c8298a |
1295 | })) |
1296 | # define BmPREVIOUS(sv) \ |
8eeaf79a |
1297 | (*({ SV *const uggh = (SV *) (sv); \ |
1298 | assert(SvTYPE(uggh) == SVt_PVGV); \ |
1299 | assert(SvVALID(uggh)); \ |
1300 | &(((XPVGV*) SvANY(uggh))->xnv_u.xbm_s.xbm_previous); \ |
1301 | })) |
60c8298a |
1302 | #else |
8eeaf79a |
1303 | # define BmFLAGS(sv) ((XPVGV*) SvANY(sv))->xnv_u.xbm_s.xbm_flags |
1304 | # define BmRARE(sv) ((XPVGV*) SvANY(sv))->xnv_u.xbm_s.xbm_rare |
1305 | # define BmUSEFUL(sv) ((XPVGV*) SvANY(sv))->xiv_u.xivu_i32 |
1306 | # define BmPREVIOUS(sv) ((XPVGV*) SvANY(sv))->xnv_u.xbm_s.xbm_previous |
b4f6c04b |
1307 | |
60c8298a |
1308 | #endif |
79072805 |
1309 | |
1310 | #define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines |
1311 | |
1312 | #define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type |
1313 | #define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ |
1314 | #define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff |
1315 | #define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen |
1316 | |
8990e307 |
1317 | #define IoIFP(sv) ((XPVIO*) SvANY(sv))->xio_ifp |
1318 | #define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp |
1319 | #define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp |
4755096e |
1320 | #define IoANY(sv) ((XPVIO*) SvANY(sv))->xio_any |
8990e307 |
1321 | #define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines |
1322 | #define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page |
1323 | #define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len |
1324 | #define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left |
1325 | #define IoTOP_NAME(sv) ((XPVIO*) SvANY(sv))->xio_top_name |
1326 | #define IoTOP_GV(sv) ((XPVIO*) SvANY(sv))->xio_top_gv |
1327 | #define IoFMT_NAME(sv) ((XPVIO*) SvANY(sv))->xio_fmt_name |
1328 | #define IoFMT_GV(sv) ((XPVIO*) SvANY(sv))->xio_fmt_gv |
1329 | #define IoBOTTOM_NAME(sv)((XPVIO*) SvANY(sv))->xio_bottom_name |
1330 | #define IoBOTTOM_GV(sv) ((XPVIO*) SvANY(sv))->xio_bottom_gv |
8990e307 |
1331 | #define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type |
1332 | #define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags |
1333 | |
50952442 |
1334 | /* IoTYPE(sv) is a single character telling the type of I/O connection. */ |
3b6c1aba |
1335 | #define IoTYPE_RDONLY '<' |
1336 | #define IoTYPE_WRONLY '>' |
1337 | #define IoTYPE_RDWR '+' |
1338 | #define IoTYPE_APPEND 'a' |
1339 | #define IoTYPE_PIPE '|' |
1340 | #define IoTYPE_STD '-' /* stdin or stdout */ |
1341 | #define IoTYPE_SOCKET 's' |
1342 | #define IoTYPE_CLOSED ' ' |
1343 | #define IoTYPE_IMPLICIT 'I' /* stdin or stdout or stderr */ |
1344 | #define IoTYPE_NUMERIC '#' /* fdopen */ |
03fcf2fc |
1345 | |
1346 | /* |
954c1994 |
1347 | =for apidoc Am|bool|SvTAINTED|SV* sv |
1348 | Checks to see if an SV is tainted. Returns TRUE if it is, FALSE if |
1349 | not. |
1350 | |
1351 | =for apidoc Am|void|SvTAINTED_on|SV* sv |
c55831ac |
1352 | Marks an SV as tainted if tainting is enabled. |
954c1994 |
1353 | |
1354 | =for apidoc Am|void|SvTAINTED_off|SV* sv |
1355 | Untaints an SV. Be I<very> careful with this routine, as it short-circuits |
1356 | some of Perl's fundamental security features. XS module authors should not |
1357 | use this function unless they fully understand all the implications of |
1358 | unconditionally untainting the value. Untainting should be done in the |
1359 | standard perl fashion, via a carefully crafted regexp, rather than directly |
1360 | untainting variables. |
1361 | |
1362 | =for apidoc Am|void|SvTAINT|SV* sv |
c55831ac |
1363 | Taints an SV if tainting is enabled. |
954c1994 |
1364 | |
1365 | =cut |
1366 | */ |
1367 | |
a0714e2c |
1368 | #define sv_taint(sv) sv_magic((sv), NULL, PERL_MAGIC_taint, NULL, 0) |
aae9cea0 |
1369 | |
bbce6d69 |
1370 | #define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv)) |
3280af22 |
1371 | #define SvTAINTED_on(sv) STMT_START{ if(PL_tainting){sv_taint(sv);} }STMT_END |
1372 | #define SvTAINTED_off(sv) STMT_START{ if(PL_tainting){sv_untaint(sv);} }STMT_END |
bbce6d69 |
1373 | |
c6ee37c5 |
1374 | #define SvTAINT(sv) \ |
1375 | STMT_START { \ |
3280af22 |
1376 | if (PL_tainting) { \ |
3280af22 |
1377 | if (PL_tainted) \ |
c6ee37c5 |
1378 | SvTAINTED_on(sv); \ |
1379 | } \ |
1380 | } STMT_END |
79072805 |
1381 | |
954c1994 |
1382 | /* |
1383 | =for apidoc Am|char*|SvPV_force|SV* sv|STRLEN len |
5f08bad4 |
1384 | Like C<SvPV> but will force the SV into containing just a string |
1385 | (C<SvPOK_only>). You want force if you are going to update the C<SvPVX> |
1386 | directly. |
954c1994 |
1387 | |
645c22ef |
1388 | =for apidoc Am|char*|SvPV_force_nomg|SV* sv|STRLEN len |
5f08bad4 |
1389 | Like C<SvPV> but will force the SV into containing just a string |
1390 | (C<SvPOK_only>). You want force if you are going to update the C<SvPVX> |
1391 | directly. Doesn't process magic. |
645c22ef |
1392 | |
954c1994 |
1393 | =for apidoc Am|char*|SvPV|SV* sv|STRLEN len |
5f08bad4 |
1394 | Returns a pointer to the string in the SV, or a stringified form of |
1395 | the SV if the SV does not contain a string. The SV may cache the |
1396 | stringified version becoming C<SvPOK>. Handles 'get' magic. See also |
645c22ef |
1397 | C<SvPVx> for a version which guarantees to evaluate sv only once. |
1398 | |
1399 | =for apidoc Am|char*|SvPVx|SV* sv|STRLEN len |
4ea561bc |
1400 | A version of C<SvPV> which guarantees to evaluate C<sv> only once. |
1401 | Only use this if C<sv> is an expression with side effects, otherwise use the |
1402 | more efficient C<SvPVX>. |
954c1994 |
1403 | |
891f9566 |
1404 | =for apidoc Am|char*|SvPV_nomg|SV* sv|STRLEN len |
1405 | Like C<SvPV> but doesn't process magic. |
1406 | |
954c1994 |
1407 | =for apidoc Am|char*|SvPV_nolen|SV* sv |
5f08bad4 |
1408 | Returns a pointer to the string in the SV, or a stringified form of |
1409 | the SV if the SV does not contain a string. The SV may cache the |
1410 | stringified form becoming C<SvPOK>. Handles 'get' magic. |
954c1994 |
1411 | |
1412 | =for apidoc Am|IV|SvIV|SV* sv |
c40f1585 |
1413 | Coerces the given SV to an integer and returns it. See C<SvIVx> for a |
645c22ef |
1414 | version which guarantees to evaluate sv only once. |
1415 | |
891f9566 |
1416 | =for apidoc Am|IV|SvIV_nomg|SV* sv |
1417 | Like C<SvIV> but doesn't process magic. |
1418 | |
645c22ef |
1419 | =for apidoc Am|IV|SvIVx|SV* sv |
1420 | Coerces the given SV to an integer and returns it. Guarantees to evaluate |
4ea561bc |
1421 | C<sv> only once. Only use this if C<sv> is an expression with side effects, |
1422 | otherwise use the more efficient C<SvIV>. |
954c1994 |
1423 | |
1424 | =for apidoc Am|NV|SvNV|SV* sv |
c40f1585 |
1425 | Coerce the given SV to a double and return it. See C<SvNVx> for a version |
645c22ef |
1426 | which guarantees to evaluate sv only once. |
1427 | |
1428 | =for apidoc Am|NV|SvNVx|SV* sv |
1429 | Coerces the given SV to a double and returns it. Guarantees to evaluate |
4ea561bc |
1430 | C<sv> only once. Only use this if C<sv> is an expression with side effects, |
1431 | otherwise use the more efficient C<SvNV>. |
954c1994 |
1432 | |
1433 | =for apidoc Am|UV|SvUV|SV* sv |
645c22ef |
1434 | Coerces the given SV to an unsigned integer and returns it. See C<SvUVx> |
1435 | for a version which guarantees to evaluate sv only once. |
1436 | |
891f9566 |
1437 | =for apidoc Am|UV|SvUV_nomg|SV* sv |
1438 | Like C<SvUV> but doesn't process magic. |
1439 | |
645c22ef |
1440 | =for apidoc Am|UV|SvUVx|SV* sv |
1441 | Coerces the given SV to an unsigned integer and returns it. Guarantees to |
4ea561bc |
1442 | C<sv> only once. Only use this if C<sv> is an expression with side effects, |
1443 | otherwise use the more efficient C<SvUV>. |
954c1994 |
1444 | |
1445 | =for apidoc Am|bool|SvTRUE|SV* sv |
1446 | Returns a boolean indicating whether Perl would evaluate the SV as true or |
1447 | false, defined or undefined. Does not handle 'get' magic. |
1448 | |
645c22ef |
1449 | =for apidoc Am|char*|SvPVutf8_force|SV* sv|STRLEN len |
b70b15d2 |
1450 | Like C<SvPV_force>, but converts sv to utf8 first if necessary. |
645c22ef |
1451 | |
1452 | =for apidoc Am|char*|SvPVutf8|SV* sv|STRLEN len |
b70b15d2 |
1453 | Like C<SvPV>, but converts sv to utf8 first if necessary. |
645c22ef |
1454 | |
b70b15d2 |
1455 | =for apidoc Am|char*|SvPVutf8_nolen|SV* sv |
1456 | Like C<SvPV_nolen>, but converts sv to utf8 first if necessary. |
645c22ef |
1457 | |
1458 | =for apidoc Am|char*|SvPVbyte_force|SV* sv|STRLEN len |
1459 | Like C<SvPV_force>, but converts sv to byte representation first if necessary. |
1460 | |
1461 | =for apidoc Am|char*|SvPVbyte|SV* sv|STRLEN len |
1462 | Like C<SvPV>, but converts sv to byte representation first if necessary. |
1463 | |
b70b15d2 |
1464 | =for apidoc Am|char*|SvPVbyte_nolen|SV* sv |
645c22ef |
1465 | Like C<SvPV_nolen>, but converts sv to byte representation first if necessary. |
1466 | |
1467 | =for apidoc Am|char*|SvPVutf8x_force|SV* sv|STRLEN len |
b70b15d2 |
1468 | Like C<SvPV_force>, but converts sv to utf8 first if necessary. |
d1be9408 |
1469 | Guarantees to evaluate sv only once; use the more efficient C<SvPVutf8_force> |
645c22ef |
1470 | otherwise. |
1471 | |
1472 | =for apidoc Am|char*|SvPVutf8x|SV* sv|STRLEN len |
b70b15d2 |
1473 | Like C<SvPV>, but converts sv to utf8 first if necessary. |
d1be9408 |
1474 | Guarantees to evaluate sv only once; use the more efficient C<SvPVutf8> |
645c22ef |
1475 | otherwise. |
1476 | |
1477 | =for apidoc Am|char*|SvPVbytex_force|SV* sv|STRLEN len |
1478 | Like C<SvPV_force>, but converts sv to byte representation first if necessary. |
d1be9408 |
1479 | Guarantees to evaluate sv only once; use the more efficient C<SvPVbyte_force> |
645c22ef |
1480 | otherwise. |
1481 | |
1482 | =for apidoc Am|char*|SvPVbytex|SV* sv|STRLEN len |
1483 | Like C<SvPV>, but converts sv to byte representation first if necessary. |
d1be9408 |
1484 | Guarantees to evaluate sv only once; use the more efficient C<SvPVbyte> |
645c22ef |
1485 | otherwise. |
1486 | |
19dbb8f1 |
1487 | =for apidoc Am|bool|SvIsCOW|SV* sv |
1488 | Returns a boolean indicating whether the SV is Copy-On-Write. (either shared |
1489 | hash key scalars, or full Copy On Write scalars if 5.9.0 is configured for |
1490 | COW) |
1491 | |
1492 | =for apidoc Am|bool|SvIsCOW_shared_hash|SV* sv |
1493 | Returns a boolean indicating whether the SV is Copy-On-Write shared hash key |
1494 | scalar. |
645c22ef |
1495 | |
0f76ff59 |
1496 | =for apidoc Am|void|sv_catpvn_nomg|SV* sv|const char* ptr|STRLEN len |
1497 | Like C<sv_catpvn> but doesn't process magic. |
1498 | |
1499 | =for apidoc Am|void|sv_setsv_nomg|SV* dsv|SV* ssv |
1500 | Like C<sv_setsv> but doesn't process magic. |
1501 | |
1502 | =for apidoc Am|void|sv_catsv_nomg|SV* dsv|SV* ssv |
1503 | Like C<sv_catsv> but doesn't process magic. |
1504 | |
954c1994 |
1505 | =cut |
1506 | */ |
1507 | |
25da4f38 |
1508 | /* Let us hope that bitmaps for UV and IV are the same */ |
463ee0b2 |
1509 | #define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) |
ff68c719 |
1510 | #define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv)) |
463ee0b2 |
1511 | #define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)) |
79072805 |
1512 | |
891f9566 |
1513 | #define SvIV_nomg(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv_flags(sv, 0)) |
1514 | #define SvUV_nomg(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv_flags(sv, 0)) |
1515 | |
baca2b92 |
1516 | /* ----*/ |
8d6d96c1 |
1517 | |
8d6d96c1 |
1518 | #define SvPV(sv, lp) SvPV_flags(sv, lp, SV_GMAGIC) |
32a5c6ec |
1519 | #define SvPV_const(sv, lp) SvPV_flags_const(sv, lp, SV_GMAGIC) |
44d22300 |
1520 | #define SvPV_mutable(sv, lp) SvPV_flags_mutable(sv, lp, SV_GMAGIC) |
8d6d96c1 |
1521 | |
8d6d96c1 |
1522 | #define SvPV_flags(sv, lp, flags) \ |
1523 | ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \ |
1524 | ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv_flags(sv, &lp, flags)) |
32a5c6ec |
1525 | #define SvPV_flags_const(sv, lp, flags) \ |
1526 | ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \ |
1527 | ? ((lp = SvCUR(sv)), SvPVX_const(sv)) : \ |
1528 | (const char*) sv_2pv_flags(sv, &lp, flags|SV_CONST_RETURN)) |
2596d9fe |
1529 | #define SvPV_flags_const_nolen(sv, flags) \ |
1530 | ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \ |
1531 | ? SvPVX_const(sv) : \ |
1532 | (const char*) sv_2pv_flags(sv, 0, flags|SV_CONST_RETURN)) |
44d22300 |
1533 | #define SvPV_flags_mutable(sv, lp, flags) \ |
1534 | ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \ |
1535 | ? ((lp = SvCUR(sv)), SvPVX_mutable(sv)) : \ |
1536 | sv_2pv_flags(sv, &lp, flags|SV_MUTABLE_RETURN)) |
79072805 |
1537 | |
8d6d96c1 |
1538 | #define SvPV_force(sv, lp) SvPV_force_flags(sv, lp, SV_GMAGIC) |
13c5b33c |
1539 | #define SvPV_force_nolen(sv) SvPV_force_flags_nolen(sv, SV_GMAGIC) |
32a5c6ec |
1540 | #define SvPV_force_mutable(sv, lp) SvPV_force_flags_mutable(sv, lp, SV_GMAGIC) |
baca2b92 |
1541 | |
8d6d96c1 |
1542 | #define SvPV_force_nomg(sv, lp) SvPV_force_flags(sv, lp, 0) |
2596d9fe |
1543 | #define SvPV_force_nomg_nolen(sv) SvPV_force_flags_nolen(sv, 0) |
8d6d96c1 |
1544 | |
8d6d96c1 |
1545 | #define SvPV_force_flags(sv, lp, flags) \ |
ff68c719 |
1546 | ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \ |
8d6d96c1 |
1547 | ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force_flags(sv, &lp, flags)) |
13c5b33c |
1548 | #define SvPV_force_flags_nolen(sv, flags) \ |
1549 | ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \ |
1550 | ? SvPVX(sv) : sv_pvn_force_flags(sv, 0, flags)) |
32a5c6ec |
1551 | #define SvPV_force_flags_mutable(sv, lp, flags) \ |
1552 | ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \ |
1553 | ? ((lp = SvCUR(sv)), SvPVX_mutable(sv)) \ |
1554 | : sv_pvn_force_flags(sv, &lp, flags|SV_MUTABLE_RETURN)) |
a0d0e21e |
1555 | |
1fa8b10d |
1556 | #define SvPV_nolen(sv) \ |
5bc28da9 |
1557 | ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \ |
dafda6d1 |
1558 | ? SvPVX(sv) : sv_2pv_flags(sv, 0, SV_GMAGIC)) |
70401c6b |
1559 | |
9ce348e8 |
1560 | #define SvPV_nolen_const(sv) \ |
1561 | ((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \ |
1562 | ? SvPVX_const(sv) : sv_2pv_flags(sv, 0, SV_GMAGIC|SV_CONST_RETURN)) |
1563 | |
baca2b92 |
1564 | #define SvPV_nomg(sv, lp) SvPV_flags(sv, lp, 0) |
9ce348e8 |
1565 | #define SvPV_nomg_const(sv, lp) SvPV_flags_const(sv, lp, 0) |
2596d9fe |
1566 | #define SvPV_nomg_const_nolen(sv) SvPV_flags_const_nolen(sv, 0) |
5bc28da9 |
1567 | |
baca2b92 |
1568 | /* ----*/ |
70401c6b |
1569 | |
5bc28da9 |
1570 | #define SvPVutf8(sv, lp) \ |
1571 | ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \ |
1572 | ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp)) |
70401c6b |
1573 | |
5bc28da9 |
1574 | #define SvPVutf8_force(sv, lp) \ |
b7a4fb4f |
1575 | ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \ |
5bc28da9 |
1576 | ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp)) |
1577 | |
baca2b92 |
1578 | |
5bc28da9 |
1579 | #define SvPVutf8_nolen(sv) \ |
1580 | ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\ |
dafda6d1 |
1581 | ? SvPVX(sv) : sv_2pvutf8(sv, 0)) |
70401c6b |
1582 | |
baca2b92 |
1583 | /* ----*/ |
1584 | |
5bc28da9 |
1585 | #define SvPVbyte(sv, lp) \ |
1586 | ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \ |
1587 | ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvbyte(sv, &lp)) |
70401c6b |
1588 | |
5bc28da9 |
1589 | #define SvPVbyte_force(sv, lp) \ |
1590 | ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8|SVf_THINKFIRST)) == (SVf_POK) \ |
a7ec4e2e |
1591 | ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvbyten_force(sv, &lp)) |
5bc28da9 |
1592 | |
5bc28da9 |
1593 | #define SvPVbyte_nolen(sv) \ |
1594 | ((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK)\ |
dafda6d1 |
1595 | ? SvPVX(sv) : sv_2pvbyte(sv, 0)) |
70401c6b |
1596 | |
1fa8b10d |
1597 | |
baca2b92 |
1598 | |
1599 | /* define FOOx(): idempotent versions of FOO(). If possible, use a local |
1600 | * var to evaluate the arg once; failing that, use a global if possible; |
1601 | * failing that, call a function to do the work |
1602 | */ |
1603 | |
1604 | #define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp) |
1605 | #define SvPVutf8x_force(sv, lp) sv_pvutf8n_force(sv, &lp) |
1606 | #define SvPVbytex_force(sv, lp) sv_pvbyten_force(sv, &lp) |
1607 | |
5dc8bdac |
1608 | #if defined(__GNUC__) && !defined(PERL_GCC_BRACE_GROUPS_FORBIDDEN) |
baca2b92 |
1609 | |
3de3296f |
1610 | # define SvIVx(sv) ({SV *_sv = (SV*)(sv); SvIV(_sv); }) |
1611 | # define SvUVx(sv) ({SV *_sv = (SV*)(sv); SvUV(_sv); }) |
1612 | # define SvNVx(sv) ({SV *_sv = (SV*)(sv); SvNV(_sv); }) |
1613 | # define SvPVx(sv, lp) ({SV *_sv = (sv); SvPV(_sv, lp); }) |
32a5c6ec |
1614 | # define SvPVx_const(sv, lp) ({SV *_sv = (sv); SvPV_const(_sv, lp); }) |
002e4c74 |
1615 | # define SvPVx_nolen(sv) ({SV *_sv = (sv); SvPV_nolen(_sv); }) |
9ce348e8 |
1616 | # define SvPVx_nolen_const(sv) ({SV *_sv = (sv); SvPV_nolen_const(_sv); }) |
3de3296f |
1617 | # define SvPVutf8x(sv, lp) ({SV *_sv = (sv); SvPVutf8(_sv, lp); }) |
1618 | # define SvPVbytex(sv, lp) ({SV *_sv = (sv); SvPVbyte(_sv, lp); }) |
002e4c74 |
1619 | # define SvPVbytex_nolen(sv) ({SV *_sv = (sv); SvPVbyte_nolen(_sv); }) |
a80f87c4 |
1620 | # define SvTRUE(sv) ( \ |
8990e307 |
1621 | !sv \ |
1622 | ? 0 \ |
1623 | : SvPOK(sv) \ |
a80f87c4 |
1624 | ? (({XPV *nxpv = (XPV*)SvANY(sv); \ |
1625 | nxpv && \ |
c2f1de04 |
1626 | (nxpv->xpv_cur > 1 || \ |
339049b0 |
1627 | (nxpv->xpv_cur && *(sv)->sv_u.svu_pv != '0')); }) \ |
79072805 |
1628 | ? 1 \ |
1629 | : 0) \ |
1630 | : \ |
1631 | SvIOK(sv) \ |
463ee0b2 |
1632 | ? SvIVX(sv) != 0 \ |
79072805 |
1633 | : SvNOK(sv) \ |
463ee0b2 |
1634 | ? SvNVX(sv) != 0.0 \ |
1635 | : sv_2bool(sv) ) |
3de3296f |
1636 | # define SvTRUEx(sv) ({SV *_sv = (sv); SvTRUE(_sv); }) |
baca2b92 |
1637 | |
a80f87c4 |
1638 | #else /* __GNUC__ */ |
baca2b92 |
1639 | |
a80f87c4 |
1640 | /* These inlined macros use globals, which will require a thread |
1641 | * declaration in user code, so we avoid them under threads */ |
1642 | |
3db8f154 |
1643 | # define SvIVx(sv) ((PL_Sv = (sv)), SvIV(PL_Sv)) |
1644 | # define SvUVx(sv) ((PL_Sv = (sv)), SvUV(PL_Sv)) |
1645 | # define SvNVx(sv) ((PL_Sv = (sv)), SvNV(PL_Sv)) |
1646 | # define SvPVx(sv, lp) ((PL_Sv = (sv)), SvPV(PL_Sv, lp)) |
32a5c6ec |
1647 | # define SvPVx_const(sv, lp) ((PL_Sv = (sv)), SvPV_const(PL_Sv, lp)) |
002e4c74 |
1648 | # define SvPVx_nolen(sv) ((PL_Sv = (sv)), SvPV_nolen(PL_Sv)) |
5f1478c3 |
1649 | # define SvPVx_nolen_const(sv) ((PL_Sv = (sv)), SvPV_nolen_const(PL_Sv)) |
3db8f154 |
1650 | # define SvPVutf8x(sv, lp) ((PL_Sv = (sv)), SvPVutf8(PL_Sv, lp)) |
1651 | # define SvPVbytex(sv, lp) ((PL_Sv = (sv)), SvPVbyte(PL_Sv, lp)) |
002e4c74 |
1652 | # define SvPVbytex_nolen(sv) ((PL_Sv = (sv)), SvPVbyte_nolen(PL_Sv)) |
3db8f154 |
1653 | # define SvTRUE(sv) ( \ |
a80f87c4 |
1654 | !sv \ |
1655 | ? 0 \ |
1656 | : SvPOK(sv) \ |
7b2c381c |
1657 | ? ((PL_Xpv = (XPV*)SvANY(PL_Sv = (sv))) && \ |
c2f1de04 |
1658 | (PL_Xpv->xpv_cur > 1 || \ |
339049b0 |
1659 | (PL_Xpv->xpv_cur && *PL_Sv->sv_u.svu_pv != '0')) \ |
a80f87c4 |
1660 | ? 1 \ |
1661 | : 0) \ |
1662 | : \ |
1663 | SvIOK(sv) \ |
1664 | ? SvIVX(sv) != 0 \ |
1665 | : SvNOK(sv) \ |
1666 | ? SvNVX(sv) != 0.0 \ |
1667 | : sv_2bool(sv) ) |
3db8f154 |
1668 | # define SvTRUEx(sv) ((PL_Sv = (sv)), SvTRUE(PL_Sv)) |
baca2b92 |
1669 | #endif /* __GNU__ */ |
1670 | |
765f542d |
1671 | #define SvIsCOW(sv) ((SvFLAGS(sv) & (SVf_FAKE | SVf_READONLY)) == \ |
1672 | (SVf_FAKE | SVf_READONLY)) |
46187eeb |
1673 | #define SvIsCOW_shared_hash(sv) (SvIsCOW(sv) && SvLEN(sv) == 0) |
baca2b92 |
1674 | |
bdd68bc3 |
1675 | #define SvSHARED_HEK_FROM_PV(pvx) \ |
1676 | ((struct hek*)(pvx - STRUCT_OFFSET(struct hek, hek_key))) |
0a356b31 |
1677 | #define SvSHARED_HASH(sv) (0 + SvSHARED_HEK_FROM_PV(SvPVX_const(sv))->hek_hash) |
c158a4fd |
1678 | |
baca2b92 |
1679 | /* flag values for sv_*_flags functions */ |
1680 | #define SV_IMMEDIATE_UNREF 1 |
1681 | #define SV_GMAGIC 2 |
765f542d |
1682 | #define SV_COW_DROP_PV 4 |
88632417 |
1683 | #define SV_UTF8_NO_ENCODING 8 |
5fcdf167 |
1684 | #define SV_NOSTEAL 16 |
32a5c6ec |
1685 | #define SV_CONST_RETURN 32 |
1686 | #define SV_MUTABLE_RETURN 64 |
bddd5118 |
1687 | #define SV_SMAGIC 128 |
c1c21316 |
1688 | #define SV_HAS_TRAILING_NUL 256 |
34482cd6 |
1689 | #define SV_COW_SHARED_HASH_KEYS 512 |
cb23d5b1 |
1690 | /* This one is only enabled for PERL_OLD_COPY_ON_WRITE */ |
1691 | #define SV_COW_OTHER_PVS 1024 |
34482cd6 |
1692 | |
1693 | /* The core is safe for this COW optimisation. XS code on CPAN may not be. |
1694 | So only default to doing the COW setup if we're in the core. |
1695 | */ |
1696 | #ifdef PERL_CORE |
1697 | # ifndef SV_DO_COW_SVSETSV |
cb23d5b1 |
1698 | # define SV_DO_COW_SVSETSV SV_COW_SHARED_HASH_KEYS|SV_COW_OTHER_PVS |
34482cd6 |
1699 | # endif |
1700 | #endif |
1701 | |
1702 | #ifndef SV_DO_COW_SVSETSV |
1703 | # define SV_DO_COW_SVSETSV 0 |
1704 | #endif |
1705 | |
765f542d |
1706 | |
5abc721d |
1707 | #define sv_unref(sv) sv_unref_flags(sv, 0) |
1708 | #define sv_force_normal(sv) sv_force_normal_flags(sv, 0) |
47518d95 |
1709 | #define sv_usepvn(sv, p, l) sv_usepvn_flags(sv, p, l, 0) |
1710 | #define sv_usepvn_mg(sv, p, l) sv_usepvn_flags(sv, p, l, SV_SMAGIC) |
174c73e3 |
1711 | |
46187eeb |
1712 | /* We are about to replace the SV's current value. So if it's copy on write |
1713 | we need to normalise it. Use the SV_COW_DROP_PV flag hint to say that |
1714 | the value is about to get thrown away, so drop the PV rather than go to |
1715 | the effort of making a read-write copy only for it to get immediately |
1716 | discarded. */ |
765f542d |
1717 | |
1718 | #define SV_CHECK_THINKFIRST_COW_DROP(sv) if (SvTHINKFIRST(sv)) \ |
1719 | sv_force_normal_flags(sv, SV_COW_DROP_PV) |
46187eeb |
1720 | |
f8c7b90f |
1721 | #ifdef PERL_OLD_COPY_ON_WRITE |
5302ffd4 |
1722 | #define SvRELEASE_IVX(sv) \ |
1723 | ((SvIsCOW(sv) ? sv_force_normal_flags(sv, 0) : (void) 0), SvOOK_off(sv)) |
46187eeb |
1724 | # define SvIsCOW_normal(sv) (SvIsCOW(sv) && SvLEN(sv)) |
b8f9541a |
1725 | #else |
1726 | # define SvRELEASE_IVX(sv) SvOOK_off(sv) |
f8c7b90f |
1727 | #endif /* PERL_OLD_COPY_ON_WRITE */ |
ed252734 |
1728 | |
1729 | #define CAN_COW_MASK (SVs_OBJECT|SVs_GMG|SVs_SMG|SVs_RMG|SVf_IOK|SVf_NOK| \ |
1730 | SVf_POK|SVf_ROK|SVp_IOK|SVp_NOK|SVp_POK|SVf_FAKE| \ |
dd2eae66 |
1731 | SVf_OOK|SVf_BREAK|SVf_READONLY) |
ed252734 |
1732 | #define CAN_COW_FLAGS (SVp_POK|SVf_POK) |
1733 | |
765f542d |
1734 | #define SV_CHECK_THINKFIRST(sv) if (SvTHINKFIRST(sv)) \ |
1735 | sv_force_normal_flags(sv, 0) |
1736 | |
1737 | |
baca2b92 |
1738 | /* all these 'functions' are now just macros */ |
1739 | |
1740 | #define sv_pv(sv) SvPV_nolen(sv) |
1741 | #define sv_pvutf8(sv) SvPVutf8_nolen(sv) |
1742 | #define sv_pvbyte(sv) SvPVbyte_nolen(sv) |
1743 | |
1744 | #define sv_pvn_force_nomg(sv, lp) sv_pvn_force_flags(sv, lp, 0) |
1745 | #define sv_utf8_upgrade_nomg(sv) sv_utf8_upgrade_flags(sv, 0) |
1746 | #define sv_catpvn_nomg(dsv, sstr, slen) sv_catpvn_flags(dsv, sstr, slen, 0) |
34482cd6 |
1747 | #define sv_setsv(dsv, ssv) \ |
1748 | sv_setsv_flags(dsv, ssv, SV_GMAGIC|SV_DO_COW_SVSETSV) |
1749 | #define sv_setsv_nomg(dsv, ssv) sv_setsv_flags(dsv, ssv, SV_DO_COW_SVSETSV) |
baca2b92 |
1750 | #define sv_catsv(dsv, ssv) sv_catsv_flags(dsv, ssv, SV_GMAGIC) |
1751 | #define sv_catsv_nomg(dsv, ssv) sv_catsv_flags(dsv, ssv, 0) |
b347df82 |
1752 | #define sv_catsv_mg(dsv, ssv) sv_catsv_flags(dsv, ssv, SV_GMAGIC|SV_SMAGIC) |
baca2b92 |
1753 | #define sv_catpvn(dsv, sstr, slen) sv_catpvn_flags(dsv, sstr, slen, SV_GMAGIC) |
b347df82 |
1754 | #define sv_catpvn_mg(sv, sstr, slen) \ |
1755 | sv_catpvn_flags(sv, sstr, slen, SV_GMAGIC|SV_SMAGIC); |
baca2b92 |
1756 | #define sv_2pv(sv, lp) sv_2pv_flags(sv, lp, SV_GMAGIC) |
cb2f1b7b |
1757 | #define sv_2pv_nolen(sv) sv_2pv(sv, 0) |
1758 | #define sv_2pvbyte_nolen(sv) sv_2pvbyte(sv, 0) |
1759 | #define sv_2pvutf8_nolen(sv) sv_2pvutf8(sv, 0) |
baca2b92 |
1760 | #define sv_2pv_nomg(sv, lp) sv_2pv_flags(sv, lp, 0) |
1761 | #define sv_pvn_force(sv, lp) sv_pvn_force_flags(sv, lp, SV_GMAGIC) |
1762 | #define sv_utf8_upgrade(sv) sv_utf8_upgrade_flags(sv, SV_GMAGIC) |
891f9566 |
1763 | #define sv_2iv(sv) sv_2iv_flags(sv, SV_GMAGIC) |
1764 | #define sv_2uv(sv) sv_2uv_flags(sv, SV_GMAGIC) |
baca2b92 |
1765 | |
db79b45b |
1766 | /* Should be named SvCatPVN_utf8_upgrade? */ |
1767 | #define sv_catpvn_utf8_upgrade(dsv, sstr, slen, nsv) \ |
1768 | STMT_START { \ |
1769 | if (!(nsv)) \ |
1770 | nsv = sv_2mortal(newSVpvn(sstr, slen)); \ |
1771 | else \ |
1772 | sv_setpvn(nsv, sstr, slen); \ |
1773 | SvUTF8_off(nsv); \ |
1774 | sv_utf8_upgrade(nsv); \ |
1775 | sv_catsv(dsv, nsv); \ |
1776 | } STMT_END |
79072805 |
1777 | |
954c1994 |
1778 | /* |
1779 | =for apidoc Am|SV*|newRV_inc|SV* sv |
1780 | |
1781 | Creates an RV wrapper for an SV. The reference count for the original SV is |
1782 | incremented. |
1783 | |
1784 | =cut |
1785 | */ |
1786 | |
5f05dabc |
1787 | #define newRV_inc(sv) newRV(sv) |
5f05dabc |
1788 | |
ef50df4b |
1789 | /* the following macros update any magic values this sv is associated with */ |
79072805 |
1790 | |
954c1994 |
1791 | /* |
ccfc67b7 |
1792 | =head1 Magical Functions |
1793 | |
954c1994 |
1794 | =for apidoc Am|void|SvGETMAGIC|SV* sv |
1795 | Invokes C<mg_get> on an SV if it has 'get' magic. This macro evaluates its |
1796 | argument more than once. |
1797 | |
1798 | =for apidoc Am|void|SvSETMAGIC|SV* sv |
1799 | Invokes C<mg_set> on an SV if it has 'set' magic. This macro evaluates its |
1800 | argument more than once. |
1801 | |
1802 | =for apidoc Am|void|SvSetSV|SV* dsb|SV* ssv |
1803 | Calls C<sv_setsv> if dsv is not the same as ssv. May evaluate arguments |
1804 | more than once. |
1805 | |
1806 | =for apidoc Am|void|SvSetSV_nosteal|SV* dsv|SV* ssv |
1807 | Calls a non-destructive version of C<sv_setsv> if dsv is not the same as |
1808 | ssv. May evaluate arguments more than once. |
1809 | |
645c22ef |
1810 | =for apidoc Am|void|SvSetMagicSV|SV* dsb|SV* ssv |
1811 | Like C<SvSetSV>, but does any set magic required afterwards. |
1812 | |
1813 | =for apidoc Am|void|SvSetMagicSV_nosteal|SV* dsv|SV* ssv |
80663158 |
1814 | Like C<SvSetSV_nosteal>, but does any set magic required afterwards. |
645c22ef |
1815 | |
68795e93 |
1816 | =for apidoc Am|void|SvSHARE|SV* sv |
1817 | Arranges for sv to be shared between threads if a suitable module |
1818 | has been loaded. |
1819 | |
1820 | =for apidoc Am|void|SvLOCK|SV* sv |
1821 | Arranges for a mutual exclusion lock to be obtained on sv if a suitable module |
1822 | has been loaded. |
1823 | |
1824 | =for apidoc Am|void|SvUNLOCK|SV* sv |
1825 | Releases a mutual exclusion lock on sv if a suitable module |
1826 | has been loaded. |
1827 | |
ccfc67b7 |
1828 | =head1 SV Manipulation Functions |
1829 | |
679ac26e |
1830 | =for apidoc Am|char *|SvGROW|SV* sv|STRLEN len |
954c1994 |
1831 | Expands the character buffer in the SV so that it has room for the |
1832 | indicated number of bytes (remember to reserve space for an extra trailing |
8cf8f3d1 |
1833 | NUL character). Calls C<sv_grow> to perform the expansion if necessary. |
954c1994 |
1834 | Returns a pointer to the character buffer. |
1835 | |
1836 | =cut |
1837 | */ |
1838 | |
68795e93 |
1839 | #define SvSHARE(sv) CALL_FPTR(PL_sharehook)(aTHX_ sv) |
1840 | #define SvLOCK(sv) CALL_FPTR(PL_lockhook)(aTHX_ sv) |
1841 | #define SvUNLOCK(sv) CALL_FPTR(PL_unlockhook)(aTHX_ sv) |
eba16661 |
1842 | #define SvDESTROYABLE(sv) CALL_FPTR(PL_destroyhook)(aTHX_ sv) |
68795e93 |
1843 | |
189b2af5 |
1844 | #define SvGETMAGIC(x) STMT_START { if (SvGMAGICAL(x)) mg_get(x); } STMT_END |
1845 | #define SvSETMAGIC(x) STMT_START { if (SvSMAGICAL(x)) mg_set(x); } STMT_END |
79072805 |
1846 | |
54310121 |
1847 | #define SvSetSV_and(dst,src,finally) \ |
189b2af5 |
1848 | STMT_START { \ |
54310121 |
1849 | if ((dst) != (src)) { \ |
1850 | sv_setsv(dst, src); \ |
1851 | finally; \ |
189b2af5 |
1852 | } \ |
1853 | } STMT_END |
54310121 |
1854 | #define SvSetSV_nosteal_and(dst,src,finally) \ |
189b2af5 |
1855 | STMT_START { \ |
8ebc5c01 |
1856 | if ((dst) != (src)) { \ |
34482cd6 |
1857 | sv_setsv_flags(dst, src, SV_GMAGIC | SV_NOSTEAL | SV_DO_COW_SVSETSV); \ |
54310121 |
1858 | finally; \ |
189b2af5 |
1859 | } \ |
1860 | } STMT_END |
79072805 |
1861 | |
54310121 |
1862 | #define SvSetSV(dst,src) \ |
c9d716f7 |
1863 | SvSetSV_and(dst,src,/*nothing*/;) |
54310121 |
1864 | #define SvSetSV_nosteal(dst,src) \ |
c9d716f7 |
1865 | SvSetSV_nosteal_and(dst,src,/*nothing*/;) |
54310121 |
1866 | |
1867 | #define SvSetMagicSV(dst,src) \ |
1868 | SvSetSV_and(dst,src,SvSETMAGIC(dst)) |
1869 | #define SvSetMagicSV_nosteal(dst,src) \ |
1870 | SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst)) |
1871 | |
db79b45b |
1872 | |
1045810a |
1873 | #if !defined(SKIP_DEBUGGING) |
79072805 |
1874 | #define SvPEEK(sv) sv_peek(sv) |
3967c732 |
1875 | #else |
1876 | #define SvPEEK(sv) "" |
1877 | #endif |
79072805 |
1878 | |
5dc8bdac |
1879 | #define SvIMMORTAL(sv) ((sv)==&PL_sv_undef || (sv)==&PL_sv_yes || (sv)==&PL_sv_no || (sv)==&PL_sv_placeholder) |
36477c24 |
1880 | |
3280af22 |
1881 | #define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no) |
54310121 |
1882 | |
79072805 |
1883 | #define isGV(sv) (SvTYPE(sv) == SVt_PVGV) |
f7877b28 |
1884 | /* If I give every macro argument a different name, then there won't be bugs |
1885 | where nested macros get confused. Been there, done that. */ |
1886 | #define isGV_with_GP(pwadak) \ |
2e5b91de |
1887 | (((SvFLAGS(pwadak) & (SVp_POK|SVpgv_GP)) == SVpgv_GP) \ |
f7877b28 |
1888 | && (SvTYPE(pwadak) == SVt_PVGV || SvTYPE(pwadak) == SVt_PVLV)) |
2e5b91de |
1889 | #define isGV_with_GP_on(sv) STMT_START { \ |
70ad9799 |
1890 | assert (SvTYPE(sv) == SVt_PVGV || SvTYPE(sv) == SVt_PVLV); \ |
1891 | assert (!SvPOKp(sv)); \ |
1892 | assert (!SvIOKp(sv)); \ |
1893 | (SvFLAGS(sv) |= SVpgv_GP); \ |
2e5b91de |
1894 | } STMT_END |
1895 | #define isGV_with_GP_off(sv) STMT_START { \ |
70ad9799 |
1896 | assert (SvTYPE(sv) == SVt_PVGV || SvTYPE(sv) == SVt_PVLV); \ |
1897 | assert (!SvPOKp(sv)); \ |
1898 | assert (!SvIOKp(sv)); \ |
2e5b91de |
1899 | (SvFLAGS(sv) &= ~SVpgv_GP); \ |
1900 | } STMT_END |
1901 | |
79072805 |
1902 | |
933fea7f |
1903 | #define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv)) |
5902b6a9 |
1904 | #define SvGROW_mutable(sv,len) \ |
1905 | (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX_mutable(sv)) |
933fea7f |
1906 | #define Sv_Grow sv_grow |
3d35f11b |
1907 | |
a0739874 |
1908 | #define CLONEf_COPY_STACKS 1 |
1909 | #define CLONEf_KEEP_PTR_TABLE 2 |
c43294b8 |
1910 | #define CLONEf_CLONE_HOST 4 |
0405e91e |
1911 | #define CLONEf_JOIN_IN 8 |
a0739874 |
1912 | |
8cf8f3d1 |
1913 | struct clone_params { |
d2d73c3e |
1914 | AV* stashes; |
1915 | UV flags; |
59b40662 |
1916 | PerlInterpreter *proto_perl; |
8cf8f3d1 |
1917 | }; |
102d3b8a |
1918 | |
1919 | /* |
1920 | * Local variables: |
1921 | * c-indentation-style: bsd |
1922 | * c-basic-offset: 4 |
1923 | * indent-tabs-mode: t |
1924 | * End: |
1925 | * |
1926 | * ex: set ts=8 sts=4 sw=4 noet: |
1927 | */ |