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files >> //proc/self/root/usr/lib64/perl5/vendor_perl/auto/DBI/Driver_xst.h
/* # $Id$ # Copyright (c) 2002 Tim Bunce Ireland # # You may distribute under the terms of either the GNU General Public # License or the Artistic License, as specified in the Perl README file. */ /* This is really just a workaround for SUPER:: not working right for XS code. * It would be better if we setup perl's context so SUPER:: did the right thing * (borrowing the relevant magic from pp_entersub in perl pp_hot.c). * Then we could just use call_method("SUPER::foo") instead. * XXX remember to call SPAGAIN in the calling code after calling this! */ static SV * dbixst_bounce_method(char *methname, int params) { dTHX; /* XXX this 'magic' undoes the dMARK embedded in the dXSARGS of our caller */ /* so that the dXSARGS below can set things up as they were for our caller */ void *xxx = PL_markstack_ptr++; dXSARGS; /* declares sp, ax, mark, items */ int i; SV *sv; int debug = 0; D_imp_xxh(ST(0)); if (debug >= 3) { PerlIO_printf(DBIc_LOGPIO(imp_xxh), " -> %s (trampoline call with %d (%ld) params)\n", methname, params, (long)items); PERL_UNUSED_VAR(xxx); } EXTEND(SP, params); PUSHMARK(SP); for (i=0; i < params; ++i) { sv = (i >= items) ? &PL_sv_undef : ST(i); PUSHs(sv); } PUTBACK; i = call_method(methname, G_SCALAR); SPAGAIN; sv = (i) ? POPs : &PL_sv_undef; PUTBACK; if (debug >= 3) PerlIO_printf(DBIc_LOGPIO(imp_xxh), " <- %s= %s (trampoline call return)\n", methname, neatsvpv(sv,0)); return sv; } static int dbdxst_bind_params(SV *sth, imp_sth_t *imp_sth, I32 items, I32 ax) { /* Handle binding supplied values to placeholders. */ /* items = one greater than the number of params */ /* ax = ax from calling sub, maybe adjusted to match items */ dTHX; int i; SV *idx; if (items-1 != DBIc_NUM_PARAMS(imp_sth) && DBIc_NUM_PARAMS(imp_sth) != DBIc_NUM_PARAMS_AT_EXECUTE ) { char errmsg[99]; /* clear any previous ParamValues before error is generated */ SV **svp = hv_fetch((HV*)DBIc_MY_H(imp_sth),"ParamValues",11,FALSE); if (svp && SvROK(*svp) && SvTYPE(SvRV(*svp)) == SVt_PVHV) { HV *hv = (HV*)SvRV(*svp); hv_clear(hv); } sprintf(errmsg,"called with %d bind variables when %d are needed", (int)items-1, DBIc_NUM_PARAMS(imp_sth)); DBIh_SET_ERR_CHAR(sth, (imp_xxh_t*)imp_sth, "-1", -1, errmsg, Nullch, Nullch); return 0; } idx = sv_2mortal(newSViv(0)); for(i=1; i < items ; ++i) { SV* value = ST(i); if (SvGMAGICAL(value)) mg_get(value); /* trigger magic to FETCH the value */ sv_setiv(idx, i); if (!dbd_bind_ph(sth, imp_sth, idx, value, 0, Nullsv, FALSE, 0)) { return 0; /* dbd_bind_ph already registered error */ } } return 1; } #ifndef dbd_fetchall_arrayref static SV * dbdxst_fetchall_arrayref(SV *sth, SV *slice, SV *batch_row_count) { dTHX; D_imp_sth(sth); SV *rows_rvav; if (SvOK(slice)) { /* should never get here */ char errmsg[99]; sprintf(errmsg,"slice param not supported by XS version of fetchall_arrayref"); DBIh_SET_ERR_CHAR(sth, (imp_xxh_t*)imp_sth, "-1", -1, errmsg, Nullch, Nullch); return &PL_sv_undef; } else { IV maxrows = SvOK(batch_row_count) ? SvIV(batch_row_count) : -1; AV *fetched_av; AV *rows_av = newAV(); if ( !DBIc_ACTIVE(imp_sth) && maxrows>0 ) { /* to simplify application logic we return undef without an error */ /* if we've fetched all the rows and called with a batch_row_count */ return &PL_sv_undef; } av_extend(rows_av, (maxrows>0) ? maxrows : 31); while ( (maxrows < 0 || maxrows-- > 0) && (fetched_av = dbd_st_fetch(sth, imp_sth)) ) { AV *copy_row_av = av_make(AvFILL(fetched_av)+1, AvARRAY(fetched_av)); av_push(rows_av, newRV_noinc((SV*)copy_row_av)); } rows_rvav = sv_2mortal(newRV_noinc((SV *)rows_av)); } return rows_rvav; } #endif
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