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1/* cv.h
2 *
3 * Copyright (c) 1991-1997, 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/* This structure much match the beginning of XPVFM */
11
12struct xpvcv {
13 char * xpv_pv; /* pointer to malloced string */
14 STRLEN xpv_cur; /* length of xp_pv as a C string */
15 STRLEN xpv_len; /* allocated size */
16 IV xof_off; /* integer value */
17 double xnv_nv; /* numeric value, if any */
18 MAGIC* xmg_magic; /* magic for scalar array */
19 HV* xmg_stash; /* class package */
20
21 HV * xcv_stash;
22 OP * xcv_start;
23 OP * xcv_root;
24 void (*xcv_xsub) _((CV*));
25 ANY xcv_xsubany;
26 GV * xcv_gv;
27 GV * xcv_filegv;
28 long xcv_depth; /* >= 2 indicates recursive call */
29 AV * xcv_padlist;
30 CV * xcv_outside;
31#ifdef USE_THREADS
32 perl_mutex *xcv_mutexp;
33 struct perl_thread *xcv_owner; /* current owner thread */
34#endif /* USE_THREADS */
35 cv_flags_t xcv_flags;
36};
37
38#define Nullcv Null(CV*)
39
40#define CvSTASH(sv) ((XPVCV*)SvANY(sv))->xcv_stash
41#define CvSTART(sv) ((XPVCV*)SvANY(sv))->xcv_start
42#define CvROOT(sv) ((XPVCV*)SvANY(sv))->xcv_root
43#define CvXSUB(sv) ((XPVCV*)SvANY(sv))->xcv_xsub
44#define CvXSUBANY(sv) ((XPVCV*)SvANY(sv))->xcv_xsubany
45#define CvGV(sv) ((XPVCV*)SvANY(sv))->xcv_gv
46#define CvFILEGV(sv) ((XPVCV*)SvANY(sv))->xcv_filegv
47#define CvDEPTH(sv) ((XPVCV*)SvANY(sv))->xcv_depth
48#define CvPADLIST(sv) ((XPVCV*)SvANY(sv))->xcv_padlist
49#define CvOUTSIDE(sv) ((XPVCV*)SvANY(sv))->xcv_outside
50#ifdef USE_THREADS
51#define CvMUTEXP(sv) ((XPVCV*)SvANY(sv))->xcv_mutexp
52#define CvOWNER(sv) ((XPVCV*)SvANY(sv))->xcv_owner
53#endif /* USE_THREADS */
54#define CvFLAGS(sv) ((XPVCV*)SvANY(sv))->xcv_flags
55
56#define CVf_CLONE 0x0001 /* anon CV uses external lexicals */
57#define CVf_CLONED 0x0002 /* a clone of one of those */
58#define CVf_ANON 0x0004 /* CvGV() can't be trusted */
59#define CVf_OLDSTYLE 0x0008
60#define CVf_UNIQUE 0x0010 /* can't be cloned */
61#define CVf_NODEBUG 0x0020 /* no DB::sub indirection for this CV
62 (esp. useful for special XSUBs) */
63#define CVf_METHOD 0x0040 /* CV is explicitly marked as a method */
64#define CVf_LOCKED 0x0080 /* CV locks itself or first arg on entry */
65
66#define CvCLONE(cv) (CvFLAGS(cv) & CVf_CLONE)
67#define CvCLONE_on(cv) (CvFLAGS(cv) |= CVf_CLONE)
68#define CvCLONE_off(cv) (CvFLAGS(cv) &= ~CVf_CLONE)
69
70#define CvCLONED(cv) (CvFLAGS(cv) & CVf_CLONED)
71#define CvCLONED_on(cv) (CvFLAGS(cv) |= CVf_CLONED)
72#define CvCLONED_off(cv) (CvFLAGS(cv) &= ~CVf_CLONED)
73
74#define CvANON(cv) (CvFLAGS(cv) & CVf_ANON)
75#define CvANON_on(cv) (CvFLAGS(cv) |= CVf_ANON)
76#define CvANON_off(cv) (CvFLAGS(cv) &= ~CVf_ANON)
77
78#define CvOLDSTYLE(cv) (CvFLAGS(cv) & CVf_OLDSTYLE)
79#define CvOLDSTYLE_on(cv) (CvFLAGS(cv) |= CVf_OLDSTYLE)
80#define CvOLDSTYLE_off(cv) (CvFLAGS(cv) &= ~CVf_OLDSTYLE)
81
82#define CvUNIQUE(cv) (CvFLAGS(cv) & CVf_UNIQUE)
83#define CvUNIQUE_on(cv) (CvFLAGS(cv) |= CVf_UNIQUE)
84#define CvUNIQUE_off(cv) (CvFLAGS(cv) &= ~CVf_UNIQUE)
85
86#define CvNODEBUG(cv) (CvFLAGS(cv) & CVf_NODEBUG)
87#define CvNODEBUG_on(cv) (CvFLAGS(cv) |= CVf_NODEBUG)
88#define CvNODEBUG_off(cv) (CvFLAGS(cv) &= ~CVf_NODEBUG)
89
90#define CvMETHOD(cv) (CvFLAGS(cv) & CVf_METHOD)
91#define CvMETHOD_on(cv) (CvFLAGS(cv) |= CVf_METHOD)
92#define CvMETHOD_off(cv) (CvFLAGS(cv) &= ~CVf_METHOD)
93
94#define CvLOCKED(cv) (CvFLAGS(cv) & CVf_LOCKED)
95#define CvLOCKED_on(cv) (CvFLAGS(cv) |= CVf_LOCKED)
96#define CvLOCKED_off(cv) (CvFLAGS(cv) &= ~CVf_LOCKED)