1035 lines
33 KiB
C
1035 lines
33 KiB
C
/* sv.h
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*
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* Copyright (c) 1991-2000, Larry Wall
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*
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* You may distribute under the terms of either the GNU General Public
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* License or the Artistic License, as specified in the README file.
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*
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*/
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#ifdef sv_flags
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#undef sv_flags /* Convex has this in <signal.h> for sigvec() */
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#endif
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/*
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=for apidoc AmU||svtype
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An enum of flags for Perl types. These are found in the file B<sv.h>
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in the C<svtype> enum. Test these flags with the C<SvTYPE> macro.
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=for apidoc AmU||SVt_PV
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Pointer type flag for scalars. See C<svtype>.
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=for apidoc AmU||SVt_IV
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Integer type flag for scalars. See C<svtype>.
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=for apidoc AmU||SVt_NV
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Double type flag for scalars. See C<svtype>.
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=for apidoc AmU||SVt_PVMG
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Type flag for blessed scalars. See C<svtype>.
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=for apidoc AmU||SVt_PVAV
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Type flag for arrays. See C<svtype>.
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=for apidoc AmU||SVt_PVHV
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Type flag for hashes. See C<svtype>.
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=for apidoc AmU||SVt_PVCV
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Type flag for code refs. See C<svtype>.
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=cut
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*/
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typedef enum {
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SVt_NULL, /* 0 */
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SVt_IV, /* 1 */
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SVt_NV, /* 2 */
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SVt_RV, /* 3 */
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SVt_PV, /* 4 */
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SVt_PVIV, /* 5 */
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SVt_PVNV, /* 6 */
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SVt_PVMG, /* 7 */
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SVt_PVBM, /* 8 */
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SVt_PVLV, /* 9 */
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SVt_PVAV, /* 10 */
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SVt_PVHV, /* 11 */
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SVt_PVCV, /* 12 */
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SVt_PVGV, /* 13 */
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SVt_PVFM, /* 14 */
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SVt_PVIO /* 15 */
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} svtype;
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/* Using C's structural equivalence to help emulate C++ inheritance here... */
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struct sv {
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void* sv_any; /* pointer to something */
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U32 sv_refcnt; /* how many references to us */
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U32 sv_flags; /* what we are */
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};
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struct gv {
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XPVGV* sv_any; /* pointer to something */
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U32 sv_refcnt; /* how many references to us */
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U32 sv_flags; /* what we are */
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};
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struct cv {
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XPVCV* sv_any; /* pointer to something */
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U32 sv_refcnt; /* how many references to us */
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U32 sv_flags; /* what we are */
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};
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struct av {
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XPVAV* sv_any; /* pointer to something */
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U32 sv_refcnt; /* how many references to us */
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U32 sv_flags; /* what we are */
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};
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struct hv {
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XPVHV* sv_any; /* pointer to something */
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U32 sv_refcnt; /* how many references to us */
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U32 sv_flags; /* what we are */
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};
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struct io {
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XPVIO* sv_any; /* pointer to something */
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U32 sv_refcnt; /* how many references to us */
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U32 sv_flags; /* what we are */
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};
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/*
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=for apidoc Am|U32|SvREFCNT|SV* sv
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Returns the value of the object's reference count.
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=for apidoc Am|SV*|SvREFCNT_inc|SV* sv
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Increments the reference count of the given SV.
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=for apidoc Am|void|SvREFCNT_dec|SV* sv
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Decrements the reference count of the given SV.
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=for apidoc Am|svtype|SvTYPE|SV* sv
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Returns the type of the SV. See C<svtype>.
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=for apidoc Am|void|SvUPGRADE|SV* sv|svtype type
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Used to upgrade an SV to a more complex form. Uses C<sv_upgrade> to
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perform the upgrade if necessary. See C<svtype>.
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=cut
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*/
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#define SvANY(sv) (sv)->sv_any
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#define SvFLAGS(sv) (sv)->sv_flags
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#define SvREFCNT(sv) (sv)->sv_refcnt
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#ifdef USE_THREADS
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# ifdef EMULATE_ATOMIC_REFCOUNTS
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# define ATOMIC_INC(count) STMT_START { \
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MUTEX_LOCK(&PL_svref_mutex); \
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++count; \
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MUTEX_UNLOCK(&PL_svref_mutex); \
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} STMT_END
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# define ATOMIC_DEC_AND_TEST(res,count) STMT_START { \
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MUTEX_LOCK(&PL_svref_mutex); \
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res = (--count == 0); \
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MUTEX_UNLOCK(&PL_svref_mutex); \
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} STMT_END
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# else
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# define ATOMIC_INC(count) atomic_inc(&count)
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# define ATOMIC_DEC_AND_TEST(res,count) (res = atomic_dec_and_test(&count))
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# endif /* EMULATE_ATOMIC_REFCOUNTS */
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#else
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# define ATOMIC_INC(count) (++count)
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# define ATOMIC_DEC_AND_TEST(res, count) (res = (--count == 0))
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#endif /* USE_THREADS */
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#ifdef __GNUC__
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# define SvREFCNT_inc(sv) \
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({ \
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SV *nsv = (SV*)(sv); \
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if (nsv) \
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ATOMIC_INC(SvREFCNT(nsv)); \
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nsv; \
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})
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#else
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# if defined(CRIPPLED_CC) || defined(USE_THREADS)
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# define SvREFCNT_inc(sv) sv_newref((SV*)sv)
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# else
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# define SvREFCNT_inc(sv) \
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((PL_Sv=(SV*)(sv)), (PL_Sv && ATOMIC_INC(SvREFCNT(PL_Sv))), (SV*)PL_Sv)
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# endif
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#endif
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#define SvREFCNT_dec(sv) sv_free((SV*)sv)
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#define SVTYPEMASK 0xff
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#define SvTYPE(sv) ((sv)->sv_flags & SVTYPEMASK)
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#define SvUPGRADE(sv, mt) (SvTYPE(sv) >= mt || sv_upgrade(sv, mt))
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#define SVs_PADBUSY 0x00000100 /* reserved for tmp or my already */
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#define SVs_PADTMP 0x00000200 /* in use as tmp */
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#define SVs_PADMY 0x00000400 /* in use a "my" variable */
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#define SVs_TEMP 0x00000800 /* string is stealable? */
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#define SVs_OBJECT 0x00001000 /* is "blessed" */
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#define SVs_GMG 0x00002000 /* has magical get method */
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#define SVs_SMG 0x00004000 /* has magical set method */
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#define SVs_RMG 0x00008000 /* has random magical methods */
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#define SVf_IOK 0x00010000 /* has valid public integer value */
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#define SVf_NOK 0x00020000 /* has valid public numeric value */
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#define SVf_POK 0x00040000 /* has valid public pointer value */
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#define SVf_ROK 0x00080000 /* has a valid reference pointer */
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#define SVf_FAKE 0x00100000 /* glob or lexical is just a copy */
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#define SVf_OOK 0x00200000 /* has valid offset value */
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#define SVf_BREAK 0x00400000 /* refcnt is artificially low */
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#define SVf_READONLY 0x00800000 /* may not be modified */
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#define SVp_IOK 0x01000000 /* has valid non-public integer value */
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#define SVp_NOK 0x02000000 /* has valid non-public numeric value */
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#define SVp_POK 0x04000000 /* has valid non-public pointer value */
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#define SVp_SCREAM 0x08000000 /* has been studied? */
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#define SVf_UTF8 0x20000000 /* SvPVX is UTF-8 encoded */
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#define SVf_THINKFIRST (SVf_READONLY|SVf_ROK|SVf_FAKE|SVf_UTF8)
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#define SVf_OK (SVf_IOK|SVf_NOK|SVf_POK|SVf_ROK| \
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SVp_IOK|SVp_NOK|SVp_POK)
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#define SVf_AMAGIC 0x10000000 /* has magical overloaded methods */
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#define PRIVSHIFT 8
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/* Some private flags. */
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/* SVpad_OUR may be set on SVt_PV{NV,MG,GV} types */
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#define SVpad_OUR 0x80000000 /* pad name is "our" instead of "my" */
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#define SVf_IVisUV 0x80000000 /* use XPVUV instead of XPVIV */
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#define SVpfm_COMPILED 0x80000000 /* FORMLINE is compiled */
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#define SVpbm_VALID 0x80000000
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#define SVpbm_TAIL 0x40000000
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#define SVrepl_EVAL 0x40000000 /* Replacement part of s///e */
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#define SVphv_SHAREKEYS 0x20000000 /* keys live on shared string table */
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#define SVphv_LAZYDEL 0x40000000 /* entry in xhv_eiter must be deleted */
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#define SVprv_WEAKREF 0x80000000 /* Weak reference */
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struct xrv {
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SV * xrv_rv; /* pointer to another SV */
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};
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struct xpv {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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};
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struct xpviv {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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IV xiv_iv; /* integer value or pv offset */
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};
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struct xpvuv {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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UV xuv_uv; /* unsigned value or pv offset */
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};
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struct xpvnv {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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IV xiv_iv; /* integer value or pv offset */
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NV xnv_nv; /* numeric value, if any */
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};
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/* These structure must match the beginning of struct xpvhv in hv.h. */
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struct xpvmg {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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IV xiv_iv; /* integer value or pv offset */
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NV xnv_nv; /* numeric value, if any */
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MAGIC* xmg_magic; /* linked list of magicalness */
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HV* xmg_stash; /* class package */
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};
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struct xpvlv {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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IV xiv_iv; /* integer value or pv offset */
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NV xnv_nv; /* numeric value, if any */
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MAGIC* xmg_magic; /* linked list of magicalness */
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HV* xmg_stash; /* class package */
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STRLEN xlv_targoff;
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STRLEN xlv_targlen;
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SV* xlv_targ;
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char xlv_type;
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};
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struct xpvgv {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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IV xiv_iv; /* integer value or pv offset */
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NV xnv_nv; /* numeric value, if any */
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MAGIC* xmg_magic; /* linked list of magicalness */
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HV* xmg_stash; /* class package */
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GP* xgv_gp;
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char* xgv_name;
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STRLEN xgv_namelen;
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HV* xgv_stash;
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U8 xgv_flags;
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};
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struct xpvbm {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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IV xiv_iv; /* integer value or pv offset */
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NV xnv_nv; /* numeric value, if any */
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MAGIC* xmg_magic; /* linked list of magicalness */
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HV* xmg_stash; /* class package */
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I32 xbm_useful; /* is this constant pattern being useful? */
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U16 xbm_previous; /* how many characters in string before rare? */
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U8 xbm_rare; /* rarest character in string */
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};
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/* This structure much match XPVCV in cv.h */
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typedef U16 cv_flags_t;
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struct xpvfm {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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IV xiv_iv; /* integer value or pv offset */
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NV xnv_nv; /* numeric value, if any */
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MAGIC* xmg_magic; /* linked list of magicalness */
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HV* xmg_stash; /* class package */
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HV * xcv_stash;
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OP * xcv_start;
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OP * xcv_root;
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void (*xcv_xsub)(pTHXo_ CV*);
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ANY xcv_xsubany;
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GV * xcv_gv;
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char * xcv_file;
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long xcv_depth; /* >= 2 indicates recursive call */
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AV * xcv_padlist;
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CV * xcv_outside;
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#ifdef USE_THREADS
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perl_mutex *xcv_mutexp; /* protects xcv_owner */
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struct perl_thread *xcv_owner; /* current owner thread */
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#endif /* USE_THREADS */
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cv_flags_t xcv_flags;
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I32 xfm_lines;
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};
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struct xpvio {
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char * xpv_pv; /* pointer to malloced string */
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STRLEN xpv_cur; /* length of xpv_pv as a C string */
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STRLEN xpv_len; /* allocated size */
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IV xiv_iv; /* integer value or pv offset */
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NV xnv_nv; /* numeric value, if any */
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MAGIC* xmg_magic; /* linked list of magicalness */
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HV* xmg_stash; /* class package */
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PerlIO * xio_ifp; /* ifp and ofp are normally the same */
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PerlIO * xio_ofp; /* but sockets need separate streams */
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DIR * xio_dirp; /* for opendir, readdir, etc */
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long xio_lines; /* $. */
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long xio_page; /* $% */
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long xio_page_len; /* $= */
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long xio_lines_left; /* $- */
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char * xio_top_name; /* $^ */
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GV * xio_top_gv; /* $^ */
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char * xio_fmt_name; /* $~ */
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GV * xio_fmt_gv; /* $~ */
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char * xio_bottom_name;/* $^B */
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GV * xio_bottom_gv; /* $^B */
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short xio_subprocess; /* -| or |- */
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char xio_type;
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char xio_flags;
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};
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#define IOf_ARGV 1 /* this fp iterates over ARGV */
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#define IOf_START 2 /* check for null ARGV and substitute '-' */
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#define IOf_FLUSH 4 /* this fp wants a flush after write op */
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#define IOf_DIDTOP 8 /* just did top of form */
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#define IOf_UNTAINT 16 /* consider this fp (and its data) "safe" */
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#define IOf_NOLINE 32 /* slurped a pseudo-line from empty file */
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#define IOf_FAKE_DIRP 64 /* xio_dirp is fake (source filters kludge) */
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/* The following macros define implementation-independent predicates on SVs. */
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/*
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=for apidoc Am|bool|SvNIOK|SV* sv
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Returns a boolean indicating whether the SV contains a number, integer or
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double.
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=for apidoc Am|bool|SvNIOKp|SV* sv
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Returns a boolean indicating whether the SV contains a number, integer or
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double. Checks the B<private> setting. Use C<SvNIOK>.
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=for apidoc Am|void|SvNIOK_off|SV* sv
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Unsets the NV/IV status of an SV.
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=for apidoc Am|bool|SvOK|SV* sv
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Returns a boolean indicating whether the value is an SV.
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=for apidoc Am|bool|SvIOKp|SV* sv
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Returns a boolean indicating whether the SV contains an integer. Checks
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the B<private> setting. Use C<SvIOK>.
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=for apidoc Am|bool|SvNOKp|SV* sv
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Returns a boolean indicating whether the SV contains a double. Checks the
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B<private> setting. Use C<SvNOK>.
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=for apidoc Am|bool|SvPOKp|SV* sv
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Returns a boolean indicating whether the SV contains a character string.
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Checks the B<private> setting. Use C<SvPOK>.
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=for apidoc Am|bool|SvIOK|SV* sv
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Returns a boolean indicating whether the SV contains an integer.
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=for apidoc Am|void|SvIOK_on|SV* sv
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Tells an SV that it is an integer.
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=for apidoc Am|void|SvIOK_off|SV* sv
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Unsets the IV status of an SV.
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=for apidoc Am|void|SvIOK_only|SV* sv
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Tells an SV that it is an integer and disables all other OK bits.
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=for apidoc Am|bool|SvNOK|SV* sv
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Returns a boolean indicating whether the SV contains a double.
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=for apidoc Am|void|SvNOK_on|SV* sv
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Tells an SV that it is a double.
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=for apidoc Am|void|SvNOK_off|SV* sv
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Unsets the NV status of an SV.
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=for apidoc Am|void|SvNOK_only|SV* sv
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Tells an SV that it is a double and disables all other OK bits.
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=for apidoc Am|bool|SvPOK|SV* sv
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Returns a boolean indicating whether the SV contains a character
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string.
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=for apidoc Am|void|SvPOK_on|SV* sv
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Tells an SV that it is a string.
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=for apidoc Am|void|SvPOK_off|SV* sv
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Unsets the PV status of an SV.
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=for apidoc Am|void|SvPOK_only|SV* sv
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Tells an SV that it is a string and disables all other OK bits.
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=for apidoc Am|bool|SvOOK|SV* sv
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Returns a boolean indicating whether the SvIVX is a valid offset value for
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the SvPVX. This hack is used internally to speed up removal of characters
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from the beginning of a SvPV. When SvOOK is true, then the start of the
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allocated string buffer is really (SvPVX - SvIVX).
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=for apidoc Am|bool|SvROK|SV* sv
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Tests if the SV is an RV.
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=for apidoc Am|void|SvROK_on|SV* sv
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Tells an SV that it is an RV.
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=for apidoc Am|void|SvROK_off|SV* sv
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Unsets the RV status of an SV.
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=for apidoc Am|SV*|SvRV|SV* sv
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Dereferences an RV to return the SV.
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=for apidoc Am|IV|SvIVX|SV* sv
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Returns the integer which is stored in the SV, assuming SvIOK is
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true.
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|
|
=for apidoc Am|UV|SvUVX|SV* sv
|
|
Returns the unsigned integer which is stored in the SV, assuming SvIOK is
|
|
true.
|
|
|
|
=for apidoc Am|NV|SvNVX|SV* sv
|
|
Returns the double which is stored in the SV, assuming SvNOK is
|
|
true.
|
|
|
|
=for apidoc Am|char*|SvPVX|SV* sv
|
|
Returns a pointer to the string in the SV. The SV must contain a
|
|
string.
|
|
|
|
=for apidoc Am|STRLEN|SvCUR|SV* sv
|
|
Returns the length of the string which is in the SV. See C<SvLEN>.
|
|
|
|
=for apidoc Am|STRLEN|SvLEN|SV* sv
|
|
Returns the size of the string buffer in the SV. See C<SvCUR>.
|
|
|
|
=for apidoc Am|char*|SvEND|SV* sv
|
|
Returns a pointer to the last character in the string which is in the SV.
|
|
See C<SvCUR>. Access the character as *(SvEND(sv)).
|
|
|
|
=for apidoc Am|HV*|SvSTASH|SV* sv
|
|
Returns the stash of the SV.
|
|
|
|
=for apidoc Am|void|SvCUR_set|SV* sv|STRLEN len
|
|
Set the length of the string which is in the SV. See C<SvCUR>.
|
|
|
|
=cut
|
|
*/
|
|
|
|
#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|SVf_IVisUV))
|
|
|
|
#define SvOK(sv) (SvFLAGS(sv) & SVf_OK)
|
|
#define SvOK_off(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
|
|
SVf_IVisUV|SVf_UTF8), \
|
|
SvOOK_off(sv))
|
|
#define SvOK_off_exc_UV(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
|
|
SVf_UTF8), \
|
|
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) ((void)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) ((void)SvOOK_off(sv), \
|
|
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
|
|
#define SvIOK_off(sv) (SvFLAGS(sv) &= ~(SVf_IOK|SVp_IOK|SVf_IVisUV))
|
|
#define SvIOK_only(sv) ((void)SvOK_off(sv), \
|
|
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
|
|
#define SvIOK_only_UV(sv) ((void)SvOK_off_exc_UV(sv), \
|
|
SvFLAGS(sv) |= (SVf_IOK|SVp_IOK))
|
|
|
|
#define SvIOK_UV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
|
|
== (SVf_IOK|SVf_IVisUV))
|
|
#define SvIOK_notUV(sv) ((SvFLAGS(sv) & (SVf_IOK|SVf_IVisUV)) \
|
|
== SVf_IOK)
|
|
|
|
#define SvIsUV(sv) (SvFLAGS(sv) & SVf_IVisUV)
|
|
#define SvIsUV_on(sv) (SvFLAGS(sv) |= SVf_IVisUV)
|
|
#define SvIsUV_off(sv) (SvFLAGS(sv) &= ~SVf_IVisUV)
|
|
|
|
#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) ((void)SvOK_off(sv), \
|
|
SvFLAGS(sv) |= (SVf_NOK|SVp_NOK))
|
|
|
|
#define SvUTF8(sv) (SvFLAGS(sv) & SVf_UTF8)
|
|
#define SvUTF8_on(sv) (SvFLAGS(sv) |= (SVf_UTF8))
|
|
#define SvUTF8_off(sv) (SvFLAGS(sv) &= ~(SVf_UTF8))
|
|
|
|
#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| \
|
|
SVf_IVisUV|SVf_UTF8), \
|
|
SvFLAGS(sv) |= (SVf_POK|SVp_POK))
|
|
#define SvPOK_only_UTF8(sv) (SvFLAGS(sv) &= ~(SVf_OK|SVf_AMAGIC| \
|
|
SVf_IVisUV), \
|
|
SvFLAGS(sv) |= (SVf_POK|SVp_POK))
|
|
|
|
#define SvOOK(sv) (SvFLAGS(sv) & SVf_OOK)
|
|
#define SvOOK_on(sv) ((void)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)
|
|
|
|
#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))
|
|
|
|
#define SvWEAKREF(sv) ((SvFLAGS(sv) & (SVf_ROK|SVprv_WEAKREF)) \
|
|
== (SVf_ROK|SVprv_WEAKREF))
|
|
#define SvWEAKREF_on(sv) (SvFLAGS(sv) |= (SVf_ROK|SVprv_WEAKREF))
|
|
#define SvWEAKREF_off(sv) (SvFLAGS(sv) &= ~(SVf_ROK|SVprv_WEAKREF))
|
|
|
|
#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 SvEVALED(sv) (SvFLAGS(sv) & SVrepl_EVAL)
|
|
#define SvEVALED_on(sv) (SvFLAGS(sv) |= SVrepl_EVAL)
|
|
#define SvEVALED_off(sv) (SvFLAGS(sv) &= ~SVrepl_EVAL)
|
|
|
|
#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
|
|
|
|
/*
|
|
=for apidoc Am|bool|SvTAINTED|SV* sv
|
|
Checks to see if an SV is tainted. Returns TRUE if it is, FALSE if
|
|
not.
|
|
|
|
=for apidoc Am|void|SvTAINTED_on|SV* sv
|
|
Marks an SV as tainted.
|
|
|
|
=for apidoc Am|void|SvTAINTED_off|SV* sv
|
|
Untaints an SV. Be I<very> careful with this routine, as it short-circuits
|
|
some of Perl's fundamental security features. XS module authors should not
|
|
use this function unless they fully understand all the implications of
|
|
unconditionally untainting the value. Untainting should be done in the
|
|
standard perl fashion, via a carefully crafted regexp, rather than directly
|
|
untainting variables.
|
|
|
|
=for apidoc Am|void|SvTAINT|SV* sv
|
|
Taints an SV if tainting is enabled
|
|
|
|
=cut
|
|
*/
|
|
|
|
#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
|
|
|
|
/*
|
|
=for apidoc Am|char*|SvPV_force|SV* sv|STRLEN len
|
|
Like <SvPV> but will force the SV into becoming a string (SvPOK). You want
|
|
force if you are going to update the SvPVX directly.
|
|
|
|
=for apidoc Am|char*|SvPV|SV* sv|STRLEN len
|
|
Returns a pointer to the string in the SV, or a stringified form of the SV
|
|
if the SV does not contain a string. Handles 'get' magic.
|
|
|
|
=for apidoc Am|char*|SvPV_nolen|SV* sv
|
|
Returns a pointer to the string in the SV, or a stringified form of the SV
|
|
if the SV does not contain a string. Handles 'get' magic.
|
|
|
|
=for apidoc Am|IV|SvIV|SV* sv
|
|
Coerces the given SV to an integer and returns it.
|
|
|
|
=for apidoc Am|NV|SvNV|SV* sv
|
|
Coerce the given SV to a double and return it.
|
|
|
|
=for apidoc Am|UV|SvUV|SV* sv
|
|
Coerces the given SV to an unsigned integer and returns it.
|
|
|
|
=for apidoc Am|bool|SvTRUE|SV* sv
|
|
Returns a boolean indicating whether Perl would evaluate the SV as true or
|
|
false, defined or undefined. Does not handle 'get' magic.
|
|
|
|
=cut
|
|
*/
|
|
|
|
#define SvPV_force(sv, lp) sv_pvn_force(sv, &lp)
|
|
#define SvPV(sv, lp) sv_pvn(sv, &lp)
|
|
#define SvPV_nolen(sv) sv_pv(sv)
|
|
|
|
#define SvPVutf8_force(sv, lp) sv_pvutf8n_force(sv, &lp)
|
|
#define SvPVutf8(sv, lp) sv_pvutf8n(sv, &lp)
|
|
#define SvPVutf8_nolen(sv) sv_pvutf8(sv)
|
|
|
|
#define SvPVbyte_force(sv, lp) sv_pvbyte_force(sv, &lp)
|
|
#define SvPVbyte(sv, lp) sv_pvbyten(sv, &lp)
|
|
#define SvPVbyte_nolen(sv) sv_pvbyte(sv)
|
|
|
|
#define SvPVx(sv, lp) sv_pvn(sv, &lp)
|
|
#define SvPVx_force(sv, lp) sv_pvn_force(sv, &lp)
|
|
#define SvPVutf8x(sv, lp) sv_pvutf8n(sv, &lp)
|
|
#define SvPVutf8x_force(sv, lp) sv_pvutf8n_force(sv, &lp)
|
|
#define SvPVbytex(sv, lp) sv_pvbyten(sv, &lp)
|
|
#define SvPVbytex_force(sv, lp) sv_pvbyten_force(sv, &lp)
|
|
|
|
#define SvIVx(sv) sv_iv(sv)
|
|
#define SvUVx(sv) sv_uv(sv)
|
|
#define SvNVx(sv) sv_nv(sv)
|
|
|
|
#define SvTRUEx(sv) sv_true(sv)
|
|
|
|
#define SvIV(sv) SvIVx(sv)
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#define SvNV(sv) SvNVx(sv)
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#define SvUV(sv) SvUVx(sv)
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#define SvTRUE(sv) SvTRUEx(sv)
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#ifndef CRIPPLED_CC
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/* redefine some things to more efficient inlined versions */
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/* Let us hope that bitmaps for UV and IV are the same */
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#undef SvIV
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#define SvIV(sv) (SvIOK(sv) ? SvIVX(sv) : sv_2iv(sv))
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#undef SvUV
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#define SvUV(sv) (SvIOK(sv) ? SvUVX(sv) : sv_2uv(sv))
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#undef SvNV
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#define SvNV(sv) (SvNOK(sv) ? SvNVX(sv) : sv_2nv(sv))
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#undef SvPV
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#define SvPV(sv, lp) \
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((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
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? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pv(sv, &lp))
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#undef SvPV_force
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#define SvPV_force(sv, lp) \
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((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == SVf_POK \
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? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvn_force(sv, &lp))
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#undef SvPV_nolen
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#define SvPV_nolen(sv) \
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((SvFLAGS(sv) & (SVf_POK)) == SVf_POK \
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? SvPVX(sv) : sv_2pv_nolen(sv))
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#undef SvPVutf8
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#define SvPVutf8(sv, lp) \
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((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \
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? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp))
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#undef SvPVutf8_force
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#define SvPVutf8_force(sv, lp) \
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((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \
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? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp))
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#undef SvPVutf8_nolen
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#define SvPVutf8_nolen(sv) \
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((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\
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? SvPVX(sv) : sv_2pvutf8_nolen(sv))
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#undef SvPVutf8
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#define SvPVutf8(sv, lp) \
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((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8) \
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? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvutf8(sv, &lp))
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#undef SvPVutf8_force
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#define SvPVutf8_force(sv, lp) \
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((SvFLAGS(sv) & (SVf_POK|SVf_THINKFIRST)) == (SVf_POK|SVf_UTF8) \
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? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvutf8n_force(sv, &lp))
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#undef SvPVutf8_nolen
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#define SvPVutf8_nolen(sv) \
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((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK|SVf_UTF8)\
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? SvPVX(sv) : sv_2pvutf8_nolen(sv))
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#undef SvPVbyte
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#define SvPVbyte(sv, lp) \
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((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK) \
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? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_2pvbyte(sv, &lp))
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#undef SvPVbyte_force
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#define SvPVbyte_force(sv, lp) \
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((SvFLAGS(sv) & (SVf_POK|SVf_UTF8|SVf_THINKFIRST)) == (SVf_POK) \
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? ((lp = SvCUR(sv)), SvPVX(sv)) : sv_pvbyte_force(sv, &lp))
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|
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#undef SvPVbyte_nolen
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#define SvPVbyte_nolen(sv) \
|
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((SvFLAGS(sv) & (SVf_POK|SVf_UTF8)) == (SVf_POK)\
|
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? SvPVX(sv) : sv_2pvbyte_nolen(sv))
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|
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#ifdef __GNUC__
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# undef SvIVx
|
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# undef SvUVx
|
|
# undef SvNVx
|
|
# undef SvPVx
|
|
# undef SvPVutf8x
|
|
# undef SvPVbytex
|
|
# undef SvTRUE
|
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# undef SvTRUEx
|
|
# define SvIVx(sv) ({SV *nsv = (SV*)(sv); SvIV(nsv); })
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# define SvUVx(sv) ({SV *nsv = (SV*)(sv); SvUV(nsv); })
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# define SvNVx(sv) ({SV *nsv = (SV*)(sv); SvNV(nsv); })
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# define SvPVx(sv, lp) ({SV *nsv = (sv); SvPV(nsv, lp); })
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# define SvPVutf8x(sv, lp) ({SV *nsv = (sv); SvPVutf8(nsv, lp); })
|
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# define SvPVbytex(sv, lp) ({SV *nsv = (sv); SvPVbyte(nsv, lp); })
|
|
# define SvTRUE(sv) ( \
|
|
!sv \
|
|
? 0 \
|
|
: SvPOK(sv) \
|
|
? (({XPV *nxpv = (XPV*)SvANY(sv); \
|
|
nxpv && \
|
|
(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 SvPVutf8x
|
|
# undef SvPVbytex
|
|
# 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 SvPVutf8x(sv, lp) ((PL_Sv = (sv)), SvPVutf8(PL_Sv, lp))
|
|
# define SvPVbytex(sv, lp) ((PL_Sv = (sv)), SvPVbyte(PL_Sv, lp))
|
|
# define SvTRUE(sv) ( \
|
|
!sv \
|
|
? 0 \
|
|
: SvPOK(sv) \
|
|
? ((PL_Xpv = (XPV*)SvANY(sv)) && \
|
|
(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 */
|
|
|
|
/*
|
|
=for apidoc Am|SV*|newRV_inc|SV* sv
|
|
|
|
Creates an RV wrapper for an SV. The reference count for the original SV is
|
|
incremented.
|
|
|
|
=cut
|
|
*/
|
|
|
|
#define newRV_inc(sv) newRV(sv)
|
|
|
|
/* the following macros update any magic values this sv is associated with */
|
|
|
|
/*
|
|
=for apidoc Am|void|SvGETMAGIC|SV* sv
|
|
Invokes C<mg_get> on an SV if it has 'get' magic. This macro evaluates its
|
|
argument more than once.
|
|
|
|
=for apidoc Am|void|SvSETMAGIC|SV* sv
|
|
Invokes C<mg_set> on an SV if it has 'set' magic. This macro evaluates its
|
|
argument more than once.
|
|
|
|
=for apidoc Am|void|SvSetSV|SV* dsb|SV* ssv
|
|
Calls C<sv_setsv> if dsv is not the same as ssv. May evaluate arguments
|
|
more than once.
|
|
|
|
=for apidoc Am|void|SvSetSV_nosteal|SV* dsv|SV* ssv
|
|
Calls a non-destructive version of C<sv_setsv> if dsv is not the same as
|
|
ssv. May evaluate arguments more than once.
|
|
|
|
=for apidoc Am|void|SvGROW|SV* sv|STRLEN len
|
|
Expands the character buffer in the SV so that it has room for the
|
|
indicated number of bytes (remember to reserve space for an extra trailing
|
|
NUL character). Calls C<sv_grow> to perform the expansion if necessary.
|
|
Returns a pointer to the character buffer.
|
|
|
|
=cut
|
|
*/
|
|
|
|
#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))
|
|
|
|
#ifdef DEBUGGING
|
|
#define SvPEEK(sv) sv_peek(sv)
|
|
#else
|
|
#define SvPEEK(sv) ""
|
|
#endif
|
|
|
|
#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)
|
|
|
|
#define SvGROW(sv,len) (SvLEN(sv) < (len) ? sv_grow(sv,len) : SvPVX(sv))
|
|
#define Sv_Grow sv_grow
|