[10723] | 1 | /* cv.h |
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| 2 | * |
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[14544] | 3 | * Copyright (c) 1991-2000, Larry Wall |
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[10723] | 4 | * |
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| 5 | * You may distribute under the terms of either the GNU General Public |
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| 6 | * License or the Artistic License, as specified in the README file. |
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| 7 | * |
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| 8 | */ |
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| 9 | |
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[14544] | 10 | /* This structure much match XPVCV in B/C.pm and the beginning of XPVFM |
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| 11 | * in sv.h */ |
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[10723] | 12 | |
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| 13 | struct xpvcv { |
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| 14 | char * xpv_pv; /* pointer to malloced string */ |
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| 15 | STRLEN xpv_cur; /* length of xp_pv as a C string */ |
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| 16 | STRLEN xpv_len; /* allocated size */ |
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| 17 | IV xof_off; /* integer value */ |
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[14544] | 18 | NV xnv_nv; /* numeric value, if any */ |
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[10723] | 19 | MAGIC* xmg_magic; /* magic for scalar array */ |
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| 20 | HV* xmg_stash; /* class package */ |
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| 21 | |
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| 22 | HV * xcv_stash; |
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| 23 | OP * xcv_start; |
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| 24 | OP * xcv_root; |
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[14544] | 25 | void (*xcv_xsub) (pTHXo_ CV*); |
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[10723] | 26 | ANY xcv_xsubany; |
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| 27 | GV * xcv_gv; |
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[14544] | 28 | char * xcv_file; |
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| 29 | long xcv_depth; /* >= 2 indicates recursive call */ |
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[10723] | 30 | AV * xcv_padlist; |
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| 31 | CV * xcv_outside; |
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[14544] | 32 | #ifdef USE_THREADS |
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| 33 | perl_mutex *xcv_mutexp; |
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| 34 | struct perl_thread *xcv_owner; /* current owner thread */ |
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| 35 | #endif /* USE_THREADS */ |
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| 36 | cv_flags_t xcv_flags; |
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[10723] | 37 | }; |
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| 38 | |
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[14544] | 39 | /* |
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| 40 | =for apidoc AmU||Nullcv |
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| 41 | Null CV pointer. |
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| 42 | |
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| 43 | =for apidoc Am|HV*|CvSTASH|CV* cv |
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| 44 | Returns the stash of the CV. |
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| 45 | |
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| 46 | =cut |
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| 47 | */ |
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| 48 | |
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[10723] | 49 | #define Nullcv Null(CV*) |
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| 50 | |
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| 51 | #define CvSTASH(sv) ((XPVCV*)SvANY(sv))->xcv_stash |
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| 52 | #define CvSTART(sv) ((XPVCV*)SvANY(sv))->xcv_start |
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| 53 | #define CvROOT(sv) ((XPVCV*)SvANY(sv))->xcv_root |
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| 54 | #define CvXSUB(sv) ((XPVCV*)SvANY(sv))->xcv_xsub |
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| 55 | #define CvXSUBANY(sv) ((XPVCV*)SvANY(sv))->xcv_xsubany |
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| 56 | #define CvGV(sv) ((XPVCV*)SvANY(sv))->xcv_gv |
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[14544] | 57 | #define CvFILE(sv) ((XPVCV*)SvANY(sv))->xcv_file |
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| 58 | #define CvFILEGV(sv) (gv_fetchfile(CvFILE(sv)) |
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[10723] | 59 | #define CvDEPTH(sv) ((XPVCV*)SvANY(sv))->xcv_depth |
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| 60 | #define CvPADLIST(sv) ((XPVCV*)SvANY(sv))->xcv_padlist |
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| 61 | #define CvOUTSIDE(sv) ((XPVCV*)SvANY(sv))->xcv_outside |
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[14544] | 62 | #ifdef USE_THREADS |
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| 63 | #define CvMUTEXP(sv) ((XPVCV*)SvANY(sv))->xcv_mutexp |
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| 64 | #define CvOWNER(sv) ((XPVCV*)SvANY(sv))->xcv_owner |
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| 65 | #endif /* USE_THREADS */ |
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[10723] | 66 | #define CvFLAGS(sv) ((XPVCV*)SvANY(sv))->xcv_flags |
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| 67 | |
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[14544] | 68 | #define CVf_CLONE 0x0001 /* anon CV uses external lexicals */ |
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| 69 | #define CVf_CLONED 0x0002 /* a clone of one of those */ |
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| 70 | #define CVf_ANON 0x0004 /* CvGV() can't be trusted */ |
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| 71 | #define CVf_OLDSTYLE 0x0008 |
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| 72 | #define CVf_UNIQUE 0x0010 /* can't be cloned */ |
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| 73 | #define CVf_NODEBUG 0x0020 /* no DB::sub indirection for this CV |
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[10723] | 74 | (esp. useful for special XSUBs) */ |
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[14544] | 75 | #define CVf_METHOD 0x0040 /* CV is explicitly marked as a method */ |
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| 76 | #define CVf_LOCKED 0x0080 /* CV locks itself or first arg on entry */ |
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| 77 | #define CVf_LVALUE 0x0100 /* CV return value can be used as lvalue */ |
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[10723] | 78 | |
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| 79 | #define CvCLONE(cv) (CvFLAGS(cv) & CVf_CLONE) |
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| 80 | #define CvCLONE_on(cv) (CvFLAGS(cv) |= CVf_CLONE) |
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| 81 | #define CvCLONE_off(cv) (CvFLAGS(cv) &= ~CVf_CLONE) |
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| 82 | |
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| 83 | #define CvCLONED(cv) (CvFLAGS(cv) & CVf_CLONED) |
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| 84 | #define CvCLONED_on(cv) (CvFLAGS(cv) |= CVf_CLONED) |
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| 85 | #define CvCLONED_off(cv) (CvFLAGS(cv) &= ~CVf_CLONED) |
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| 86 | |
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| 87 | #define CvANON(cv) (CvFLAGS(cv) & CVf_ANON) |
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| 88 | #define CvANON_on(cv) (CvFLAGS(cv) |= CVf_ANON) |
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| 89 | #define CvANON_off(cv) (CvFLAGS(cv) &= ~CVf_ANON) |
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| 90 | |
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[14544] | 91 | #ifdef PERL_XSUB_OLDSTYLE |
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[10723] | 92 | #define CvOLDSTYLE(cv) (CvFLAGS(cv) & CVf_OLDSTYLE) |
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| 93 | #define CvOLDSTYLE_on(cv) (CvFLAGS(cv) |= CVf_OLDSTYLE) |
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| 94 | #define CvOLDSTYLE_off(cv) (CvFLAGS(cv) &= ~CVf_OLDSTYLE) |
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[14544] | 95 | #endif |
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[10723] | 96 | |
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| 97 | #define CvUNIQUE(cv) (CvFLAGS(cv) & CVf_UNIQUE) |
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| 98 | #define CvUNIQUE_on(cv) (CvFLAGS(cv) |= CVf_UNIQUE) |
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| 99 | #define CvUNIQUE_off(cv) (CvFLAGS(cv) &= ~CVf_UNIQUE) |
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| 100 | |
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| 101 | #define CvNODEBUG(cv) (CvFLAGS(cv) & CVf_NODEBUG) |
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| 102 | #define CvNODEBUG_on(cv) (CvFLAGS(cv) |= CVf_NODEBUG) |
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| 103 | #define CvNODEBUG_off(cv) (CvFLAGS(cv) &= ~CVf_NODEBUG) |
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[14544] | 104 | |
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| 105 | #define CvMETHOD(cv) (CvFLAGS(cv) & CVf_METHOD) |
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| 106 | #define CvMETHOD_on(cv) (CvFLAGS(cv) |= CVf_METHOD) |
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| 107 | #define CvMETHOD_off(cv) (CvFLAGS(cv) &= ~CVf_METHOD) |
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| 108 | |
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| 109 | #define CvLOCKED(cv) (CvFLAGS(cv) & CVf_LOCKED) |
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| 110 | #define CvLOCKED_on(cv) (CvFLAGS(cv) |= CVf_LOCKED) |
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| 111 | #define CvLOCKED_off(cv) (CvFLAGS(cv) &= ~CVf_LOCKED) |
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| 112 | |
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| 113 | #define CvLVALUE(cv) (CvFLAGS(cv) & CVf_LVALUE) |
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| 114 | #define CvLVALUE_on(cv) (CvFLAGS(cv) |= CVf_LVALUE) |
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| 115 | #define CvLVALUE_off(cv) (CvFLAGS(cv) &= ~CVf_LVALUE) |
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| 116 | |
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| 117 | #define CvEVAL(cv) (CvUNIQUE(cv) && !SvFAKE(cv)) |
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| 118 | #define CvEVAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_off(cv)) |
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| 119 | #define CvEVAL_off(cv) CvUNIQUE_off(cv) |
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| 120 | |
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| 121 | /* BEGIN|INIT|END */ |
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| 122 | #define CvSPECIAL(cv) (CvUNIQUE(cv) && SvFAKE(cv)) |
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| 123 | #define CvSPECIAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_on(cv)) |
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| 124 | #define CvSPECIAL_off(cv) (CvUNIQUE_off(cv),SvFAKE_off(cv)) |
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