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Diffstat (limited to 'contrib/perl5/sv.h')
| -rw-r--r-- | contrib/perl5/sv.h | 669 |
1 files changed, 669 insertions, 0 deletions
diff --git a/contrib/perl5/sv.h b/contrib/perl5/sv.h new file mode 100644 index 0000000..3dac548 --- /dev/null +++ b/contrib/perl5/sv.h @@ -0,0 +1,669 @@ +/* sv.h + * + * Copyright (c) 1991-1997, Larry Wall + * + * You may distribute under the terms of either the GNU General Public + * License or the Artistic License, as specified in the README file. + * + */ + +#ifdef sv_flags +#undef sv_flags /* Convex has this in <signal.h> for sigvec() */ +#endif + +typedef enum { + SVt_NULL, /* 0 */ + SVt_IV, /* 1 */ + SVt_NV, /* 2 */ + SVt_RV, /* 3 */ + SVt_PV, /* 4 */ + SVt_PVIV, /* 5 */ + SVt_PVNV, /* 6 */ + SVt_PVMG, /* 7 */ + SVt_PVBM, /* 8 */ + SVt_PVLV, /* 9 */ + SVt_PVAV, /* 10 */ + SVt_PVHV, /* 11 */ + SVt_PVCV, /* 12 */ + SVt_PVGV, /* 13 */ + SVt_PVFM, /* 14 */ + SVt_PVIO /* 15 */ +} svtype; + +/* Using C's structural equivalence to help emulate C++ inheritance here... */ + +struct sv { + void* sv_any; /* pointer to something */ + U32 sv_refcnt; /* how many references to us */ + U32 sv_flags; /* what we are */ +}; + +struct gv { + XPVGV* sv_any; /* pointer to something */ + U32 sv_refcnt; /* how many references to us */ + U32 sv_flags; /* what we are */ +}; + +struct cv { + XPVCV* sv_any; /* pointer to something */ + U32 sv_refcnt; /* how many references to us */ + U32 sv_flags; /* what we are */ +}; + +struct av { + XPVAV* sv_any; /* pointer to something */ + U32 sv_refcnt; /* how many references to us */ + U32 sv_flags; /* what we are */ +}; + +struct hv { + XPVHV* sv_any; /* pointer to something */ + U32 sv_refcnt; /* how many references to us */ + U32 sv_flags; /* what we are */ +}; + +struct io { + XPVIO* sv_any; /* pointer to something */ + U32 sv_refcnt; /* how many references to us */ + U32 sv_flags; /* what we are */ +}; + +#define SvANY(sv) (sv)->sv_any +#define SvFLAGS(sv) (sv)->sv_flags +#define SvREFCNT(sv) (sv)->sv_refcnt + +#ifdef USE_THREADS + +# ifdef EMULATE_ATOMIC_REFCOUNTS +# define ATOMIC_INC(count) STMT_START { \ + MUTEX_LOCK(&PL_svref_mutex); \ + ++count; \ + MUTEX_UNLOCK(&PL_svref_mutex); \ + } STMT_END +# define ATOMIC_DEC_AND_TEST(res,count) STMT_START { \ + MUTEX_LOCK(&PL_svref_mutex); \ + res = (--count == 0); \ + MUTEX_UNLOCK(&PL_svref_mutex); \ + } STMT_END +# else +# define ATOMIC_INC(count) atomic_inc(&count) +# define ATOMIC_DEC_AND_TEST(res,count) (res = atomic_dec_and_test(&count)) +# endif /* EMULATE_ATOMIC_REFCOUNTS */ +#else +# define ATOMIC_INC(count) (++count) +# define ATOMIC_DEC_AND_TEST(res, count) (res = (--count == 0)) +#endif /* USE_THREADS */ + +#ifdef __GNUC__ +# define SvREFCNT_inc(sv) \ + ({ \ + SV *nsv = (SV*)(sv); \ + if (nsv) \ + ATOMIC_INC(SvREFCNT(nsv)); \ + nsv; \ + }) +#else +# if defined(CRIPPLED_CC) || defined(USE_THREADS) +# define SvREFCNT_inc(sv) sv_newref((SV*)sv) +# else +# define SvREFCNT_inc(sv) \ + ((PL_Sv=(SV*)(sv)), (PL_Sv && ATOMIC_INC(SvREFCNT(PL_Sv))), (SV*)PL_Sv) +# endif +#endif + +#define SvREFCNT_dec(sv) sv_free((SV*)sv) + +#define SVTYPEMASK 0xff +#define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK) + +#define SvUPGRADE(sv, mt) (SvTYPE(sv) >= mt || sv_upgrade(sv, mt)) + +#define SVs_PADBUSY 0x00000100 /* reserved for tmp or my already */ +#define SVs_PADTMP 0x00000200 /* in use as tmp */ +#define SVs_PADMY 0x00000400 /* in use a "my" variable */ +#define SVs_TEMP 0x00000800 /* string is stealable? */ +#define SVs_OBJECT 0x00001000 /* is "blessed" */ +#define SVs_GMG 0x00002000 /* has magical get method */ +#define SVs_SMG 0x00004000 /* has magical set method */ +#define SVs_RMG 0x00008000 /* has random magical methods */ + +#define SVf_IOK 0x00010000 /* has valid public integer value */ +#define SVf_NOK 0x00020000 /* has valid public numeric value */ +#define SVf_POK 0x00040000 /* has valid public pointer value */ +#define SVf_ROK 0x00080000 /* has a valid reference pointer */ + +#define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */ +#define SVf_OOK 0x00200000 /* has valid offset value */ +#define SVf_BREAK 0x00400000 /* refcnt is artificially low */ +#define SVf_READONLY 0x00800000 /* may not be modified */ + +#define SVf_THINKFIRST (SVf_READONLY|SVf_ROK) + +#define SVp_IOK 0x01000000 /* has valid non-public integer value */ +#define SVp_NOK 0x02000000 /* has valid non-public numeric value */ +#define SVp_POK 0x04000000 /* has valid non-public pointer value */ +#define SVp_SCREAM 0x08000000 /* has been studied? */ + +#define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \ + SVp_IOK|SVp_NOK|SVp_POK) + +#ifdef OVERLOAD +#define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */ +#else +#define SVf_AMAGIC 0 /* can be or-ed without effect */ +#endif /* OVERLOAD */ + +#define PRIVSHIFT 8 + +/* Some private flags. */ + +#define SVpfm_COMPILED 0x80000000 + +#define SVpbm_VALID 0x80000000 +#define SVpbm_TAIL 0x40000000 + +#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */ +#define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */ + +struct xrv { + SV * xrv_rv; /* pointer to another SV */ +}; + +struct xpv { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ +}; + +struct xpviv { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ + IV xiv_iv; /* integer value or pv offset */ +}; + +struct xpvuv { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ + UV xuv_uv; /* unsigned value or pv offset */ +}; + +struct xpvnv { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ + IV xiv_iv; /* integer value or pv offset */ + double xnv_nv; /* numeric value, if any */ +}; + +/* These structure must match the beginning of struct xpvhv in hv.h. */ +struct xpvmg { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ + IV xiv_iv; /* integer value or pv offset */ + double xnv_nv; /* numeric value, if any */ + MAGIC* xmg_magic; /* linked list of magicalness */ + HV* xmg_stash; /* class package */ +}; + +struct xpvlv { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ + IV xiv_iv; /* integer value or pv offset */ + double xnv_nv; /* numeric value, if any */ + MAGIC* xmg_magic; /* linked list of magicalness */ + HV* xmg_stash; /* class package */ + + STRLEN xlv_targoff; + STRLEN xlv_targlen; + SV* xlv_targ; + char xlv_type; +}; + +struct xpvgv { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ + IV xiv_iv; /* integer value or pv offset */ + double xnv_nv; /* numeric value, if any */ + MAGIC* xmg_magic; /* linked list of magicalness */ + HV* xmg_stash; /* class package */ + + GP* xgv_gp; + char* xgv_name; + STRLEN xgv_namelen; + HV* xgv_stash; + U8 xgv_flags; +}; + +struct xpvbm { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ + IV xiv_iv; /* integer value or pv offset */ + double xnv_nv; /* numeric value, if any */ + MAGIC* xmg_magic; /* linked list of magicalness */ + HV* xmg_stash; /* class package */ + + I32 xbm_useful; /* is this constant pattern being useful? */ + U16 xbm_previous; /* how many characters in string before rare? */ + U8 xbm_rare; /* rarest character in string */ +}; + +/* This structure much match XPVCV */ + +typedef U16 cv_flags_t; + +struct xpvfm { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ + IV xiv_iv; /* integer value or pv offset */ + double xnv_nv; /* numeric value, if any */ + MAGIC* xmg_magic; /* linked list of magicalness */ + HV* xmg_stash; /* class package */ + + HV * xcv_stash; + OP * xcv_start; + OP * xcv_root; + void (*xcv_xsub)_((CV* _CPERLproto)); + ANY xcv_xsubany; + GV * xcv_gv; + GV * xcv_filegv; + long xcv_depth; /* >= 2 indicates recursive call */ + AV * xcv_padlist; + CV * xcv_outside; +#ifdef USE_THREADS + perl_mutex *xcv_mutexp; /* protects xcv_owner */ + struct perl_thread *xcv_owner; /* current owner thread */ +#endif /* USE_THREADS */ + cv_flags_t xcv_flags; + + I32 xfm_lines; +}; + +struct xpvio { + char * xpv_pv; /* pointer to malloced string */ + STRLEN xpv_cur; /* length of xpv_pv as a C string */ + STRLEN xpv_len; /* allocated size */ + IV xiv_iv; /* integer value or pv offset */ + double xnv_nv; /* numeric value, if any */ + MAGIC* xmg_magic; /* linked list of magicalness */ + HV* xmg_stash; /* class package */ + + PerlIO * xio_ifp; /* ifp and ofp are normally the same */ + PerlIO * xio_ofp; /* but sockets need separate streams */ + DIR * xio_dirp; /* for opendir, readdir, etc */ + long xio_lines; /* $. */ + long xio_page; /* $% */ + long xio_page_len; /* $= */ + long xio_lines_left; /* $- */ + char * xio_top_name; /* $^ */ + GV * xio_top_gv; /* $^ */ + char * xio_fmt_name; /* $~ */ + GV * xio_fmt_gv; /* $~ */ + char * xio_bottom_name;/* $^B */ + GV * xio_bottom_gv; /* $^B */ + short xio_subprocess; /* -| or |- */ + char xio_type; + char xio_flags; +}; + +#define IOf_ARGV 1 /* this fp iterates over ARGV */ +#define IOf_START 2 /* check for null ARGV and substitute '-' */ +#define IOf_FLUSH 4 /* this fp wants a flush after write op */ +#define IOf_DIDTOP 8 /* just did top of form */ +#define IOf_UNTAINT 16 /* consider this fp (and it's data) "safe" */ + +/* The following macros define implementation-independent predicates on SVs. */ + +#define SvNIOK(sv) (SvFLAGS(sv) & (SVf_IOK|SVf_NOK)) +#define SvNIOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK)) +#define SvNIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVf_NOK| \ + SVp_IOK|SVp_NOK)) + +#define SvOK(sv) (SvFLAGS(sv) & SVf_OK) +#define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \ + SvOOK_off(sv)) + +#define SvOKp(sv) (SvFLAGS(sv) & (SVp_IOK|SVp_NOK|SVp_POK)) +#define SvIOKp(sv) (SvFLAGS(sv) & SVp_IOK) +#define SvIOKp_on(sv) (SvOOK_off(sv), SvFLAGS(sv) |= SVp_IOK) +#define SvNOKp(sv) (SvFLAGS(sv) & SVp_NOK) +#define SvNOKp_on(sv) (SvFLAGS(sv) |= SVp_NOK) +#define SvPOKp(sv) (SvFLAGS(sv) & SVp_POK) +#define SvPOKp_on(sv) (SvFLAGS(sv) |= SVp_POK) + +#define SvIOK(sv) (SvFLAGS(sv) & SVf_IOK) +#define SvIOK_on(sv) (SvOOK_off(sv), \ + SvFLAGS(sv) |= (SVf_IOK|SVp_IOK)) +#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK)) +#define SvIOK_only(sv) (SvOK_off(sv), \ + SvFLAGS(sv) |= (SVf_IOK|SVp_IOK)) + +#define SvNOK(sv) (SvFLAGS(sv) & SVf_NOK) +#define SvNOK_on(sv) (SvFLAGS(sv) |= (SVf_NOK|SVp_NOK)) +#define SvNOK_off(sv) (SvFLAGS(sv) &= ~(SVf_NOK|SVp_NOK)) +#define SvNOK_only(sv) (SvOK_off(sv), \ + SvFLAGS(sv) |= (SVf_NOK|SVp_NOK)) + +#define SvPOK(sv) (SvFLAGS(sv) & SVf_POK) +#define SvPOK_on(sv) (SvFLAGS(sv) |= (SVf_POK|SVp_POK)) +#define SvPOK_off(sv) (SvFLAGS(sv) &= ~(SVf_POK|SVp_POK)) +#define SvPOK_only(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC), \ + SvFLAGS(sv) |= (SVf_POK|SVp_POK)) + +#define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK) +#define SvOOK_on(sv) (SvIOK_off(sv), SvFLAGS(sv) |= SVf_OOK) +#define SvOOK_off(sv) (SvOOK(sv) && sv_backoff(sv)) + +#define SvFAKE(sv) (SvFLAGS(sv) & SVf_FAKE) +#define SvFAKE_on(sv) (SvFLAGS(sv) |= SVf_FAKE) +#define SvFAKE_off(sv) (SvFLAGS(sv) &= ~SVf_FAKE) + +#define SvROK(sv) (SvFLAGS(sv) & SVf_ROK) +#define SvROK_on(sv) (SvFLAGS(sv) |= SVf_ROK) +#define SvROK_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVf_AMAGIC)) + +#define SvMAGICAL(sv) (SvFLAGS(sv) & (SVs_GMG|SVs_SMG|SVs_RMG)) +#define SvMAGICAL_on(sv) (SvFLAGS(sv) |= (SVs_GMG|SVs_SMG|SVs_RMG)) +#define SvMAGICAL_off(sv) (SvFLAGS(sv) &= ~(SVs_GMG|SVs_SMG|SVs_RMG)) + +#define SvGMAGICAL(sv) (SvFLAGS(sv) & SVs_GMG) +#define SvGMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_GMG) +#define SvGMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_GMG) + +#define SvSMAGICAL(sv) (SvFLAGS(sv) & SVs_SMG) +#define SvSMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_SMG) +#define SvSMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_SMG) + +#define SvRMAGICAL(sv) (SvFLAGS(sv) & SVs_RMG) +#define SvRMAGICAL_on(sv) (SvFLAGS(sv) |= SVs_RMG) +#define SvRMAGICAL_off(sv) (SvFLAGS(sv) &= ~SVs_RMG) + +#ifdef OVERLOAD +#define SvAMAGIC(sv) (SvFLAGS(sv) & SVf_AMAGIC) +#define SvAMAGIC_on(sv) (SvFLAGS(sv) |= SVf_AMAGIC) +#define SvAMAGIC_off(sv) (SvFLAGS(sv) &= ~SVf_AMAGIC) + +/* +#define Gv_AMG(stash) \ + (HV_AMAGICmb(stash) && \ + ((!HV_AMAGICbad(stash) && HV_AMAGIC(stash)) || Gv_AMupdate(stash))) +*/ +#define Gv_AMG(stash) (PL_amagic_generation && Gv_AMupdate(stash)) +#endif /* OVERLOAD */ + +#define SvTHINKFIRST(sv) (SvFLAGS(sv) & SVf_THINKFIRST) + +#define SvPADBUSY(sv) (SvFLAGS(sv) & SVs_PADBUSY) + +#define SvPADTMP(sv) (SvFLAGS(sv) & SVs_PADTMP) +#define SvPADTMP_on(sv) (SvFLAGS(sv) |= SVs_PADTMP|SVs_PADBUSY) +#define SvPADTMP_off(sv) (SvFLAGS(sv) &= ~SVs_PADTMP) + +#define SvPADMY(sv) (SvFLAGS(sv) & SVs_PADMY) +#define SvPADMY_on(sv) (SvFLAGS(sv) |= SVs_PADMY|SVs_PADBUSY) + +#define SvTEMP(sv) (SvFLAGS(sv) & SVs_TEMP) +#define SvTEMP_on(sv) (SvFLAGS(sv) |= SVs_TEMP) +#define SvTEMP_off(sv) (SvFLAGS(sv) &= ~SVs_TEMP) + +#define SvOBJECT(sv) (SvFLAGS(sv) & SVs_OBJECT) +#define SvOBJECT_on(sv) (SvFLAGS(sv) |= SVs_OBJECT) +#define SvOBJECT_off(sv) (SvFLAGS(sv) &= ~SVs_OBJECT) + +#define SvREADONLY(sv) (SvFLAGS(sv) & SVf_READONLY) +#define SvREADONLY_on(sv) (SvFLAGS(sv) |= SVf_READONLY) +#define SvREADONLY_off(sv) (SvFLAGS(sv) &= ~SVf_READONLY) + +#define SvSCREAM(sv) (SvFLAGS(sv) & SVp_SCREAM) +#define SvSCREAM_on(sv) (SvFLAGS(sv) |= SVp_SCREAM) +#define SvSCREAM_off(sv) (SvFLAGS(sv) &= ~SVp_SCREAM) + +#define SvCOMPILED(sv) (SvFLAGS(sv) & SVpfm_COMPILED) +#define SvCOMPILED_on(sv) (SvFLAGS(sv) |= SVpfm_COMPILED) +#define SvCOMPILED_off(sv) (SvFLAGS(sv) &= ~SVpfm_COMPILED) + +#define SvTAIL(sv) (SvFLAGS(sv) & SVpbm_TAIL) +#define SvTAIL_on(sv) (SvFLAGS(sv) |= SVpbm_TAIL) +#define SvTAIL_off(sv) (SvFLAGS(sv) &= ~SVpbm_TAIL) + +#define SvVALID(sv) (SvFLAGS(sv) & SVpbm_VALID) +#define SvVALID_on(sv) (SvFLAGS(sv) |= SVpbm_VALID) +#define SvVALID_off(sv) (SvFLAGS(sv) &= ~SVpbm_VALID) + +#define SvRV(sv) ((XRV*) SvANY(sv))->xrv_rv +#define SvRVx(sv) SvRV(sv) + +#define SvIVX(sv) ((XPVIV*) SvANY(sv))->xiv_iv +#define SvIVXx(sv) SvIVX(sv) +#define SvUVX(sv) ((XPVUV*) SvANY(sv))->xuv_uv +#define SvUVXx(sv) SvUVX(sv) +#define SvNVX(sv) ((XPVNV*)SvANY(sv))->xnv_nv +#define SvNVXx(sv) SvNVX(sv) +#define SvPVX(sv) ((XPV*) SvANY(sv))->xpv_pv +#define SvPVXx(sv) SvPVX(sv) +#define SvCUR(sv) ((XPV*) SvANY(sv))->xpv_cur +#define SvLEN(sv) ((XPV*) SvANY(sv))->xpv_len +#define SvLENx(sv) SvLEN(sv) +#define SvEND(sv)(((XPV*) SvANY(sv))->xpv_pv + ((XPV*)SvANY(sv))->xpv_cur) +#define SvENDx(sv) ((PL_Sv = (sv)), SvEND(PL_Sv)) +#define SvMAGIC(sv) ((XPVMG*) SvANY(sv))->xmg_magic +#define SvSTASH(sv) ((XPVMG*) SvANY(sv))->xmg_stash + +#define SvIV_set(sv, val) \ + STMT_START { assert(SvTYPE(sv) == SVt_IV || SvTYPE(sv) >= SVt_PVIV); \ + (((XPVIV*) SvANY(sv))->xiv_iv = val); } STMT_END +#define SvNV_set(sv, val) \ + STMT_START { assert(SvTYPE(sv) == SVt_NV || SvTYPE(sv) >= SVt_PVNV); \ + (((XPVNV*) SvANY(sv))->xnv_nv = val); } STMT_END +#define SvPV_set(sv, val) \ + STMT_START { assert(SvTYPE(sv) >= SVt_PV); \ + (((XPV*) SvANY(sv))->xpv_pv = val); } STMT_END +#define SvCUR_set(sv, val) \ + STMT_START { assert(SvTYPE(sv) >= SVt_PV); \ + (((XPV*) SvANY(sv))->xpv_cur = val); } STMT_END +#define SvLEN_set(sv, val) \ + STMT_START { assert(SvTYPE(sv) >= SVt_PV); \ + (((XPV*) SvANY(sv))->xpv_len = val); } STMT_END +#define SvEND_set(sv, val) \ + STMT_START { assert(SvTYPE(sv) >= SVt_PV); \ + (((XPV*) SvANY(sv))->xpv_cur = val - SvPVX(sv)); } STMT_END + +#define BmRARE(sv) ((XPVBM*) SvANY(sv))->xbm_rare +#define BmUSEFUL(sv) ((XPVBM*) SvANY(sv))->xbm_useful +#define BmPREVIOUS(sv) ((XPVBM*) SvANY(sv))->xbm_previous + +#define FmLINES(sv) ((XPVFM*) SvANY(sv))->xfm_lines + +#define LvTYPE(sv) ((XPVLV*) SvANY(sv))->xlv_type +#define LvTARG(sv) ((XPVLV*) SvANY(sv))->xlv_targ +#define LvTARGOFF(sv) ((XPVLV*) SvANY(sv))->xlv_targoff +#define LvTARGLEN(sv) ((XPVLV*) SvANY(sv))->xlv_targlen + +#define IoIFP(sv) ((XPVIO*) SvANY(sv))->xio_ifp +#define IoOFP(sv) ((XPVIO*) SvANY(sv))->xio_ofp +#define IoDIRP(sv) ((XPVIO*) SvANY(sv))->xio_dirp +#define IoLINES(sv) ((XPVIO*) SvANY(sv))->xio_lines +#define IoPAGE(sv) ((XPVIO*) SvANY(sv))->xio_page +#define IoPAGE_LEN(sv) ((XPVIO*) SvANY(sv))->xio_page_len +#define IoLINES_LEFT(sv)((XPVIO*) SvANY(sv))->xio_lines_left +#define IoTOP_NAME(sv) ((XPVIO*) SvANY(sv))->xio_top_name +#define IoTOP_GV(sv) ((XPVIO*) SvANY(sv))->xio_top_gv +#define IoFMT_NAME(sv) ((XPVIO*) SvANY(sv))->xio_fmt_name +#define IoFMT_GV(sv) ((XPVIO*) SvANY(sv))->xio_fmt_gv +#define IoBOTTOM_NAME(sv)((XPVIO*) SvANY(sv))->xio_bottom_name +#define IoBOTTOM_GV(sv) ((XPVIO*) SvANY(sv))->xio_bottom_gv +#define IoSUBPROCESS(sv)((XPVIO*) SvANY(sv))->xio_subprocess +#define IoTYPE(sv) ((XPVIO*) SvANY(sv))->xio_type +#define IoFLAGS(sv) ((XPVIO*) SvANY(sv))->xio_flags + +#define SvTAINTED(sv) (SvMAGICAL(sv) && sv_tainted(sv)) +#define SvTAINTED_on(sv) STMT_START{ if(PL_tainting){sv_taint(sv);} }STMT_END +#define SvTAINTED_off(sv) STMT_START{ if(PL_tainting){sv_untaint(sv);} }STMT_END + +#define SvTAINT(sv) \ + STMT_START { \ + if (PL_tainting) { \ + dTHR; \ + if (PL_tainted) \ + SvTAINTED_on(sv); \ + } \ + } STMT_END + +#define SvPV_force(sv, lp) sv_pvn_force(sv, &lp) +#define SvPV(sv, lp) sv_pvn(sv, &lp) +#define SvIVx(sv) sv_iv(sv) +#define SvUVx(sv) sv_uv(sv) +#define SvNVx(sv) sv_nv(sv) +#define SvPVx(sv, lp) sv_pvn(sv, &lp) +#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp) +#define SvTRUEx(sv) sv_true(sv) + +#define SvIV(sv) SvIVx(sv) +#define SvNV(sv) SvNVx(sv) +#define SvUV(sv) SvIVx(sv) +#define SvTRUE(sv) SvTRUEx(sv) + +#ifndef CRIPPLED_CC +/* redefine some things to more efficient inlined versions */ + +#undef SvIV +#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv)) + +#undef SvUV +#define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv)) + +#undef SvNV +#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv)) + +#undef SvPV +#define SvPV(sv, lp) \ + (SvPOK(sv) ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp)) + +#undef SvPV_force +#define SvPV_force(sv, lp) \ + ((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \ + ? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp)) + +#ifdef __GNUC__ +# undef SvIVx +# undef SvUVx +# undef SvNVx +# undef SvPVx +# undef SvTRUE +# undef SvTRUEx +# define SvIVx(sv) ({SV *nsv = (SV*)(sv); SvIV(nsv); }) +# define SvUVx(sv) ({SV *nsv = (SV*)(sv); SvUV(nsv); }) +# define SvNVx(sv) ({SV *nsv = (SV*)(sv); SvNV(nsv); }) +# define SvPVx(sv, lp) ({SV *nsv = (sv); SvPV(nsv, lp); }) +# define SvTRUE(sv) ( \ + !sv \ + ? 0 \ + : SvPOK(sv) \ + ? (({XPV *nxpv = (XPV*)SvANY(sv); \ + nxpv && \ + (*nxpv->xpv_pv > '0' || \ + nxpv->xpv_cur > 1 || \ + (nxpv->xpv_cur && *nxpv->xpv_pv != '0')); }) \ + ? 1 \ + : 0) \ + : \ + SvIOK(sv) \ + ? SvIVX(sv) != 0 \ + : SvNOK(sv) \ + ? SvNVX(sv) != 0.0 \ + : sv_2bool(sv) ) +# define SvTRUEx(sv) ({SV *nsv = (sv); SvTRUE(nsv); }) +#else /* __GNUC__ */ +#ifndef USE_THREADS +/* These inlined macros use globals, which will require a thread + * declaration in user code, so we avoid them under threads */ + +# undef SvIVx +# undef SvUVx +# undef SvNVx +# undef SvPVx +# undef SvTRUE +# undef SvTRUEx +# define SvIVx(sv) ((PL_Sv = (sv)), SvIV(PL_Sv)) +# define SvUVx(sv) ((PL_Sv = (sv)), SvUV(PL_Sv)) +# define SvNVx(sv) ((PL_Sv = (sv)), SvNV(PL_Sv)) +# define SvPVx(sv, lp) ((PL_Sv = (sv)), SvPV(PL_Sv, lp)) +# define SvTRUE(sv) ( \ + !sv \ + ? 0 \ + : SvPOK(sv) \ + ? ((PL_Xpv = (XPV*)SvANY(sv)) && \ + (*PL_Xpv->xpv_pv > '0' || \ + PL_Xpv->xpv_cur > 1 || \ + (PL_Xpv->xpv_cur && *PL_Xpv->xpv_pv != '0')) \ + ? 1 \ + : 0) \ + : \ + SvIOK(sv) \ + ? SvIVX(sv) != 0 \ + : SvNOK(sv) \ + ? SvNVX(sv) != 0.0 \ + : sv_2bool(sv) ) +# define SvTRUEx(sv) ((PL_Sv = (sv)), SvTRUE(PL_Sv)) +#endif /* !USE_THREADS */ +#endif /* !__GNU__ */ +#endif /* !CRIPPLED_CC */ + +#define newRV_inc(sv) newRV(sv) + +/* the following macros update any magic values this sv is associated with */ + +#define SvGETMAGIC(x) STMT_START { if (SvGMAGICAL(x)) mg_get(x); } STMT_END +#define SvSETMAGIC(x) STMT_START { if (SvSMAGICAL(x)) mg_set(x); } STMT_END + +#define SvSetSV_and(dst,src,finally) \ + STMT_START { \ + if ((dst) != (src)) { \ + sv_setsv(dst, src); \ + finally; \ + } \ + } STMT_END +#define SvSetSV_nosteal_and(dst,src,finally) \ + STMT_START { \ + if ((dst) != (src)) { \ + U32 tMpF = SvFLAGS(src) & SVs_TEMP; \ + SvTEMP_off(src); \ + sv_setsv(dst, src); \ + SvFLAGS(src) |= tMpF; \ + finally; \ + } \ + } STMT_END + +#define SvSetSV(dst,src) \ + SvSetSV_and(dst,src,/*nothing*/;) +#define SvSetSV_nosteal(dst,src) \ + SvSetSV_nosteal_and(dst,src,/*nothing*/;) + +#define SvSetMagicSV(dst,src) \ + SvSetSV_and(dst,src,SvSETMAGIC(dst)) +#define SvSetMagicSV_nosteal(dst,src) \ + SvSetSV_nosteal_and(dst,src,SvSETMAGIC(dst)) + +#define SvPEEK(sv) sv_peek(sv) + +#define SvIMMORTAL(sv) ((sv)==&PL_sv_undef || (sv)==&PL_sv_yes || (sv)==&PL_sv_no) + +#define boolSV(b) ((b) ? &PL_sv_yes : &PL_sv_no) + +#define isGV(sv) (SvTYPE(sv) == SVt_PVGV) + +#ifndef DOSISH +# define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv)) +# define Sv_Grow sv_grow +#else + /* extra parentheses intentionally NOT placed around "len"! */ +# define SvGROW(sv,len) ((SvLEN(sv) < (unsigned long)len) \ + ? sv_grow(sv,(unsigned long)len) : SvPVX(sv)) +# define Sv_Grow(sv,len) sv_grow(sv,(unsigned long)(len)) +#endif /* DOSISH */ |
