mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-17 10:26:15 +00:00
121 lines
3.7 KiB
C
121 lines
3.7 KiB
C
/* hv.h
|
|
*
|
|
* Copyright (c) 1991-1999, 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.
|
|
*
|
|
*/
|
|
|
|
typedef struct he HE;
|
|
typedef struct hek HEK;
|
|
|
|
struct he {
|
|
HE *hent_next;
|
|
HEK *hent_hek;
|
|
SV *hent_val;
|
|
};
|
|
|
|
struct hek {
|
|
U32 hek_hash;
|
|
I32 hek_len;
|
|
char hek_key[1];
|
|
};
|
|
|
|
/* This structure must match the beginning of struct xpvmg in sv.h. */
|
|
struct xpvhv {
|
|
char * xhv_array; /* pointer to malloced string */
|
|
STRLEN xhv_fill; /* how full xhv_array currently is */
|
|
STRLEN xhv_max; /* subscript of last element of xhv_array */
|
|
IV xhv_keys; /* how many elements in the array */
|
|
double xnv_nv; /* numeric value, if any */
|
|
MAGIC* xmg_magic; /* magic for scalar array */
|
|
HV* xmg_stash; /* class package */
|
|
|
|
I32 xhv_riter; /* current root of iterator */
|
|
HE *xhv_eiter; /* current entry of iterator */
|
|
PMOP *xhv_pmroot; /* list of pm's for this package */
|
|
char *xhv_name; /* name, if a symbol table */
|
|
};
|
|
|
|
#define PERL_HASH(hash,str,len) \
|
|
STMT_START { \
|
|
register char *s_PeRlHaSh = str; \
|
|
register I32 i_PeRlHaSh = len; \
|
|
register U32 hash_PeRlHaSh = 0; \
|
|
while (i_PeRlHaSh--) \
|
|
hash_PeRlHaSh = hash_PeRlHaSh * 33 + *s_PeRlHaSh++; \
|
|
(hash) = hash_PeRlHaSh; \
|
|
} STMT_END
|
|
|
|
|
|
/* these hash entry flags ride on hent_klen (for use only in magic/tied HVs) */
|
|
#define HEf_SVKEY -2 /* hent_key is a SV* */
|
|
|
|
|
|
#define Nullhv Null(HV*)
|
|
#define HvARRAY(hv) ((HE**)((XPVHV*) SvANY(hv))->xhv_array)
|
|
#define HvFILL(hv) ((XPVHV*) SvANY(hv))->xhv_fill
|
|
#define HvMAX(hv) ((XPVHV*) SvANY(hv))->xhv_max
|
|
#define HvKEYS(hv) ((XPVHV*) SvANY(hv))->xhv_keys
|
|
#define HvRITER(hv) ((XPVHV*) SvANY(hv))->xhv_riter
|
|
#define HvEITER(hv) ((XPVHV*) SvANY(hv))->xhv_eiter
|
|
#define HvPMROOT(hv) ((XPVHV*) SvANY(hv))->xhv_pmroot
|
|
#define HvNAME(hv) ((XPVHV*) SvANY(hv))->xhv_name
|
|
|
|
#define HvSHAREKEYS(hv) (SvFLAGS(hv) & SVphv_SHAREKEYS)
|
|
#define HvSHAREKEYS_on(hv) (SvFLAGS(hv) |= SVphv_SHAREKEYS)
|
|
#define HvSHAREKEYS_off(hv) (SvFLAGS(hv) &= ~SVphv_SHAREKEYS)
|
|
|
|
#define HvLAZYDEL(hv) (SvFLAGS(hv) & SVphv_LAZYDEL)
|
|
#define HvLAZYDEL_on(hv) (SvFLAGS(hv) |= SVphv_LAZYDEL)
|
|
#define HvLAZYDEL_off(hv) (SvFLAGS(hv) &= ~SVphv_LAZYDEL)
|
|
|
|
#ifdef OVERLOAD
|
|
|
|
/* Maybe amagical: */
|
|
/* #define HV_AMAGICmb(hv) (SvFLAGS(hv) & (SVpgv_badAM | SVpgv_AM)) */
|
|
|
|
#define HV_AMAGIC(hv) (SvFLAGS(hv) & SVpgv_AM)
|
|
#define HV_AMAGIC_on(hv) (SvFLAGS(hv) |= SVpgv_AM)
|
|
#define HV_AMAGIC_off(hv) (SvFLAGS(hv) &= ~SVpgv_AM)
|
|
|
|
/*
|
|
#define HV_AMAGICbad(hv) (SvFLAGS(hv) & SVpgv_badAM)
|
|
#define HV_badAMAGIC_on(hv) (SvFLAGS(hv) |= SVpgv_badAM)
|
|
#define HV_badAMAGIC_off(hv) (SvFLAGS(hv) &= ~SVpgv_badAM)
|
|
*/
|
|
|
|
#endif /* OVERLOAD */
|
|
|
|
#define Nullhe Null(HE*)
|
|
#define HeNEXT(he) (he)->hent_next
|
|
#define HeKEY_hek(he) (he)->hent_hek
|
|
#define HeKEY(he) HEK_KEY(HeKEY_hek(he))
|
|
#define HeKEY_sv(he) (*(SV**)HeKEY(he))
|
|
#define HeKLEN(he) HEK_LEN(HeKEY_hek(he))
|
|
#define HeVAL(he) (he)->hent_val
|
|
#define HeHASH(he) HEK_HASH(HeKEY_hek(he))
|
|
#define HePV(he,lp) ((HeKLEN(he) == HEf_SVKEY) ? \
|
|
SvPV(HeKEY_sv(he),lp) : \
|
|
(((lp = HeKLEN(he)) >= 0) ? \
|
|
HeKEY(he) : Nullch))
|
|
|
|
#define HeSVKEY(he) ((HeKEY(he) && \
|
|
HeKLEN(he) == HEf_SVKEY) ? \
|
|
HeKEY_sv(he) : Nullsv)
|
|
|
|
#define HeSVKEY_force(he) (HeKEY(he) ? \
|
|
((HeKLEN(he) == HEf_SVKEY) ? \
|
|
HeKEY_sv(he) : \
|
|
sv_2mortal(newSVpv(HeKEY(he), \
|
|
HeKLEN(he)))) : \
|
|
&PL_sv_undef)
|
|
#define HeSVKEY_set(he,sv) ((HeKLEN(he) = HEf_SVKEY), (HeKEY_sv(he) = sv))
|
|
|
|
#define Nullhek Null(HEK*)
|
|
#define HEK_BASESIZE STRUCT_OFFSET(HEK, hek_key[0])
|
|
#define HEK_HASH(hek) (hek)->hek_hash
|
|
#define HEK_LEN(hek) (hek)->hek_len
|
|
#define HEK_KEY(hek) (hek)->hek_key
|