1 /* cv.h 2 * 3 * Copyright (c) 1991-2001, 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 XPVCV in B/C.pm and the beginning of XPVFM 11 * in sv.h */ 12 13 struct xpvcv { 14 char * xpv_pv; /* pointer to malloced string */ 15 STRLEN xpv_cur; /* length of xp_pv as a C string */ 16 STRLEN xpv_len; /* allocated size */ 17 IV xof_off; /* integer value */ 18 NV xnv_nv; /* numeric value, if any */ 19 MAGIC* xmg_magic; /* magic for scalar array */ 20 HV* xmg_stash; /* class package */ 21 22 HV * xcv_stash; 23 OP * xcv_start; 24 OP * xcv_root; 25 void (*xcv_xsub) (pTHXo_ CV*); 26 ANY xcv_xsubany; 27 GV * xcv_gv; 28 char * xcv_file; 29 long xcv_depth; /* >= 2 indicates recursive call */ 30 AV * xcv_padlist; 31 CV * xcv_outside; 32 #ifdef USE_THREADS 33 perl_mutex *xcv_mutexp; 34 struct perl_thread *xcv_owner; /* current owner thread */ 35 #endif /* USE_THREADS */ 36 cv_flags_t xcv_flags; 37 }; 38 39 /* 40 =for apidoc AmU||Nullcv 41 Null CV pointer. 42 43 =for apidoc Am|HV*|CvSTASH|CV* cv 44 Returns the stash of the CV. 45 46 =cut 47 */ 48 49 #define Nullcv Null(CV*) 50 51 #define CvSTASH(sv) ((XPVCV*)SvANY(sv))->xcv_stash 52 #define CvSTART(sv) ((XPVCV*)SvANY(sv))->xcv_start 53 #define CvROOT(sv) ((XPVCV*)SvANY(sv))->xcv_root 54 #define CvXSUB(sv) ((XPVCV*)SvANY(sv))->xcv_xsub 55 #define CvXSUBANY(sv) ((XPVCV*)SvANY(sv))->xcv_xsubany 56 #define CvGV(sv) ((XPVCV*)SvANY(sv))->xcv_gv 57 #define CvFILE(sv) ((XPVCV*)SvANY(sv))->xcv_file 58 #define CvFILEGV(sv) (gv_fetchfile(CvFILE(sv)) 59 #define CvDEPTH(sv) ((XPVCV*)SvANY(sv))->xcv_depth 60 #define CvPADLIST(sv) ((XPVCV*)SvANY(sv))->xcv_padlist 61 #define CvOUTSIDE(sv) ((XPVCV*)SvANY(sv))->xcv_outside 62 #ifdef USE_THREADS 63 #define CvMUTEXP(sv) ((XPVCV*)SvANY(sv))->xcv_mutexp 64 #define CvOWNER(sv) ((XPVCV*)SvANY(sv))->xcv_owner 65 #endif /* USE_THREADS */ 66 #define CvFLAGS(sv) ((XPVCV*)SvANY(sv))->xcv_flags 67 68 #define CVf_CLONE 0x0001 /* anon CV uses external lexicals */ 69 #define CVf_CLONED 0x0002 /* a clone of one of those */ 70 #define CVf_ANON 0x0004 /* CvGV() can't be trusted */ 71 #define CVf_OLDSTYLE 0x0008 72 #define CVf_UNIQUE 0x0010 /* can't be cloned */ 73 #define CVf_NODEBUG 0x0020 /* no DB::sub indirection for this CV 74 (esp. useful for special XSUBs) */ 75 #define CVf_METHOD 0x0040 /* CV is explicitly marked as a method */ 76 #define CVf_LOCKED 0x0080 /* CV locks itself or first arg on entry */ 77 #define CVf_LVALUE 0x0100 /* CV return value can be used as lvalue */ 78 79 #define CvCLONE(cv) (CvFLAGS(cv) & CVf_CLONE) 80 #define CvCLONE_on(cv) (CvFLAGS(cv) |= CVf_CLONE) 81 #define CvCLONE_off(cv) (CvFLAGS(cv) &= ~CVf_CLONE) 82 83 #define CvCLONED(cv) (CvFLAGS(cv) & CVf_CLONED) 84 #define CvCLONED_on(cv) (CvFLAGS(cv) |= CVf_CLONED) 85 #define CvCLONED_off(cv) (CvFLAGS(cv) &= ~CVf_CLONED) 86 87 #define CvANON(cv) (CvFLAGS(cv) & CVf_ANON) 88 #define CvANON_on(cv) (CvFLAGS(cv) |= CVf_ANON) 89 #define CvANON_off(cv) (CvFLAGS(cv) &= ~CVf_ANON) 90 91 #ifdef PERL_XSUB_OLDSTYLE 92 #define CvOLDSTYLE(cv) (CvFLAGS(cv) & CVf_OLDSTYLE) 93 #define CvOLDSTYLE_on(cv) (CvFLAGS(cv) |= CVf_OLDSTYLE) 94 #define CvOLDSTYLE_off(cv) (CvFLAGS(cv) &= ~CVf_OLDSTYLE) 95 #endif 96 97 #define CvUNIQUE(cv) (CvFLAGS(cv) & CVf_UNIQUE) 98 #define CvUNIQUE_on(cv) (CvFLAGS(cv) |= CVf_UNIQUE) 99 #define CvUNIQUE_off(cv) (CvFLAGS(cv) &= ~CVf_UNIQUE) 100 101 #define CvNODEBUG(cv) (CvFLAGS(cv) & CVf_NODEBUG) 102 #define CvNODEBUG_on(cv) (CvFLAGS(cv) |= CVf_NODEBUG) 103 #define CvNODEBUG_off(cv) (CvFLAGS(cv) &= ~CVf_NODEBUG) 104 105 #define CvMETHOD(cv) (CvFLAGS(cv) & CVf_METHOD) 106 #define CvMETHOD_on(cv) (CvFLAGS(cv) |= CVf_METHOD) 107 #define CvMETHOD_off(cv) (CvFLAGS(cv) &= ~CVf_METHOD) 108 109 #define CvLOCKED(cv) (CvFLAGS(cv) & CVf_LOCKED) 110 #define CvLOCKED_on(cv) (CvFLAGS(cv) |= CVf_LOCKED) 111 #define CvLOCKED_off(cv) (CvFLAGS(cv) &= ~CVf_LOCKED) 112 113 #define CvLVALUE(cv) (CvFLAGS(cv) & CVf_LVALUE) 114 #define CvLVALUE_on(cv) (CvFLAGS(cv) |= CVf_LVALUE) 115 #define CvLVALUE_off(cv) (CvFLAGS(cv) &= ~CVf_LVALUE) 116 117 #define CvEVAL(cv) (CvUNIQUE(cv) && !SvFAKE(cv)) 118 #define CvEVAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_off(cv)) 119 #define CvEVAL_off(cv) CvUNIQUE_off(cv) 120 121 /* BEGIN|INIT|END */ 122 #define CvSPECIAL(cv) (CvUNIQUE(cv) && SvFAKE(cv)) 123 #define CvSPECIAL_on(cv) (CvUNIQUE_on(cv),SvFAKE_on(cv)) 124 #define CvSPECIAL_off(cv) (CvUNIQUE_off(cv),SvFAKE_off(cv)) 125