driver.xst

Astercon2 开源软交换 2.2.0

    CODE:
    D_imp_xxh(h);
    /* dbd_take_imp_data() returns &sv_no (or other defined but false value)
     * to indicate "preparations complete, now call SUPER::take_imp_data" for me.
     * Anything else is returned to the caller via sv_2mortal(sv), typically that
     * would be &sv_undef for error or an SV holding the imp_data.
     */
    SV *sv = dbd_take_imp_data(h, imp_xxh, NULL);
    ST(0) = (SvOK(sv) && !SvTRUE(sv))
	? dbixst_bounce_method("DBD::~DRIVER~::db::SUPER::take_imp_data", items)
	: sv_2mortal(sv);

#endif

#ifdef dbd_db_data_sources

void
data_sources(dbh, attr = Nullsv)
    SV *dbh
    SV *attr
    PPCODE:
    {
	D_imp_dbh(dbh);
	AV *av = dbd_db_data_sources(dbh, imp_dbh, attr);
	if (av) {
	    int i;
	    int n = AvFILL(av)+1;
	    EXTEND(sp, n);
	    for (i = 0; i < n; ++i) {
		PUSHs(AvARRAY(av)[i]);
	    }
	}
    }

#endif

# -- end of DBD::~DRIVER~::db

# ------------------------------------------------------------
# statement interface
# ------------------------------------------------------------
MODULE = DBD::~DRIVER~    PACKAGE = DBD::~DRIVER~::st


void
_prepare(sth, statement, attribs=Nullsv)
    SV *	sth
    SV *	statement
    SV *	attribs
    CODE:
    {
    D_imp_sth(sth);
    DBD_ATTRIBS_CHECK("_prepare", sth, attribs);
#ifdef dbd_st_prepare_sv
    ST(0) = dbd_st_prepare_sv(sth, imp_sth, statement, attribs) ? &sv_yes : &sv_no;
#else
    ST(0) = dbd_st_prepare(sth, imp_sth, SvPV_nolen(statement), attribs) ? &sv_yes : &sv_no;
#endif
    }


#ifdef dbd_st_rows

void
rows(sth)
    SV *	sth
    CODE:
    D_imp_sth(sth);
    XST_mIV(0, dbd_st_rows(sth, imp_sth));

#endif /* dbd_st_rows */


#ifdef dbd_st_bind_col

void
bind_col(sth, col, ref, attribs=Nullsv)
    SV *	sth
    SV *	col
    SV *	ref
    SV *	attribs
    CODE:
    {
    IV sql_type = 0;
    D_imp_sth(sth);
    if (SvGMAGICAL(ref))
	mg_get(ref);
    if (attribs) {
	if (SvNIOK(attribs)) {
	    sql_type = SvIV(attribs);
	    attribs = Nullsv;
	}
	else {
	    SV **svp;
	    DBD_ATTRIBS_CHECK("bind_col", sth, attribs);
	    /* XXX we should perhaps complain if TYPE is not SvNIOK */
	    DBD_ATTRIB_GET_IV(attribs, "TYPE",4, svp, sql_type);
	}
    }
    switch(dbd_st_bind_col(sth, imp_sth, col, ref, sql_type, attribs)) {
    case 2:	ST(0) = &sv_yes;	/* job done completely */
		break;
    case 1:	/* fallback to DBI default */
		ST(0) = (DBIc_DBISTATE(imp_sth)->bind_col(sth, col, ref, attribs))
		    ? &sv_yes : &sv_no;
		break;
    default:	ST(0) = &sv_no;		/* dbd_st_bind_col has called set_err */
		break;
    }
    }

#endif /* dbd_st_bind_col */

void
bind_param(sth, param, value, attribs=Nullsv)
    SV *	sth
    SV *	param
    SV *	value
    SV *	attribs
    CODE:
    {
    IV sql_type = 0;
    D_imp_sth(sth);
    if (SvGMAGICAL(value))
	mg_get(value);
    if (attribs) {
	if (SvNIOK(attribs)) {
	    sql_type = SvIV(attribs);
	    attribs = Nullsv;
	}
	else {
	    SV **svp;
	    DBD_ATTRIBS_CHECK("bind_param", sth, attribs);
	    /* XXX we should perhaps complain if TYPE is not SvNIOK */
	    DBD_ATTRIB_GET_IV(attribs, "TYPE",4, svp, sql_type);
	}
    }
    ST(0) = dbd_bind_ph(sth, imp_sth, param, value, sql_type, attribs, FALSE, 0)
		? &sv_yes : &sv_no;
    }


void
bind_param_inout(sth, param, value_ref, maxlen, attribs=Nullsv)
    SV *	sth
    SV *	param
    SV *	value_ref
    IV 		maxlen
    SV *	attribs
    CODE:
    {
    IV sql_type = 0;
    D_imp_sth(sth);
    SV *value;
    if (!SvROK(value_ref) || SvTYPE(SvRV(value_ref)) > SVt_PVMG)
	croak("bind_param_inout needs a reference to a scalar value");
    value = SvRV(value_ref);
    if (SvREADONLY(value))
	croak("Modification of a read-only value attempted");
    if (SvGMAGICAL(value))
	mg_get(value);
    if (attribs) {
	if (SvNIOK(attribs)) {
	    sql_type = SvIV(attribs);
	    attribs = Nullsv;
	}
	else {
	    SV **svp;
	    DBD_ATTRIBS_CHECK("bind_param", sth, attribs);
	    DBD_ATTRIB_GET_IV(attribs, "TYPE",4, svp, sql_type);
	}
    }
    ST(0) = dbd_bind_ph(sth, imp_sth, param, value, sql_type, attribs, TRUE, maxlen)
		? &sv_yes : &sv_no;
    }


void
execute(sth, ...)
    SV *	sth
    CODE:
    D_imp_sth(sth);
    int retval;
    if (items > 1) {	/* need to bind params */
	if (!dbdxst_bind_params(sth, imp_sth, items, ax) ) {
	    XSRETURN_UNDEF;
	}
    }
    /* XXX this code is duplicated in selectrow_arrayref above	*/
    if (DBIc_ROW_COUNT(imp_sth) > 0) /* reset for re-execute */
	DBIc_ROW_COUNT(imp_sth) = 0;
    retval = dbd_st_execute(sth, imp_sth);
    /* remember that dbd_st_execute must return <= -2 for error	*/
    if (retval == 0)		/* ok with no rows affected	*/
	XST_mPV(0, "0E0");	/* (true but zero)		*/
    else if (retval < -1)	/* -1 == unknown number of rows	*/
	XST_mUNDEF(0);		/* <= -2 means error   		*/
    else
	XST_mIV(0, retval);	/* typically 1, rowcount or -1	*/


#ifdef dbd_st_execute_for_fetch

void
execute_for_fetch(sth, fetch_tuple_sub, tuple_status = Nullsv)
    SV *	sth
    SV *	fetch_tuple_sub
    SV *	tuple_status
    CODE:
    {
    D_imp_sth(sth);
    ST(0) = dbd_st_execute_for_fetch(sth, imp_sth, fetch_tuple_sub, tuple_status);
    }

#endif



void
fetchrow_arrayref(sth)
    SV *	sth
    ALIAS:
	fetch = 1
    CODE:
    D_imp_sth(sth);
    AV *av;
    if (0) ix = ix;	/* avoid unused variable warning */
    av = dbd_st_fetch(sth, imp_sth);
    ST(0) = (av) ? sv_2mortal(newRV((SV *)av)) : &PL_sv_undef;


void
fetchrow_array(sth)
    SV *	sth
    ALIAS:
	fetchrow = 1
    PPCODE:
    D_imp_sth(sth);
    AV *av;
    av = dbd_st_fetch(sth, imp_sth);
    if (av) {
	int i;
	int num_fields = AvFILL(av)+1;
	EXTEND(sp, num_fields);
	for(i=0; i < num_fields; ++i) {
	    PUSHs(AvARRAY(av)[i]);
	}
	if (0) ix = ix;	/* avoid unused variable warning */
    }


void
fetchall_arrayref(sth, slice=&PL_sv_undef, batch_row_count=&PL_sv_undef)
    SV *	sth
    SV *	slice
    SV *	batch_row_count
    CODE:
    if (SvOK(slice)) {  /* fallback to perl implementation */
        ST(0) = dbixst_bounce_method("DBD::~DRIVER~::st::SUPER::fetchall_arrayref", 3);
    }
    else {
	ST(0) = dbdxst_fetchall_arrayref(sth, slice, batch_row_count);
    }


void
finish(sth)
    SV *	sth
    CODE:
    D_imp_sth(sth);
    D_imp_dbh_from_sth;
    if (!DBIc_ACTIVE(imp_sth)) {
	/* No active statement to finish	*/
	XSRETURN_YES;
    }
    if (!DBIc_ACTIVE(imp_dbh)) {
	/* Either an explicit disconnect() or global destruction	*/
	/* has disconnected us from the database. Finish is meaningless	*/
	DBIc_ACTIVE_off(imp_sth);
	XSRETURN_YES;
    }
#ifdef dbd_st_finish3
    ST(0) = dbd_st_finish3(sth, imp_sth, 0) ? &sv_yes : &sv_no;
#else
    ST(0) = dbd_st_finish(sth, imp_sth) ? &sv_yes : &sv_no;
#endif


void
blob_read(sth, field, offset, len, destrv=Nullsv, destoffset=0)
    SV *        sth
    int field
    long        offset
    long        len
    SV *        destrv
    long        destoffset
    CODE:
    {
    D_imp_sth(sth);
    if (!destrv)
        destrv = sv_2mortal(newRV(sv_2mortal(newSV(0))));
    if (dbd_st_blob_read(sth, imp_sth, field, offset, len, destrv, destoffset))
         ST(0) = SvRV(destrv);
    else ST(0) = &PL_sv_undef;
    }


void
STORE(sth, keysv, valuesv)
    SV *	sth
    SV *	keysv
    SV *	valuesv
    CODE:
    D_imp_sth(sth);
    if (SvGMAGICAL(valuesv))
	mg_get(valuesv);
    ST(0) = &sv_yes;
    if (!dbd_st_STORE_attrib(sth, imp_sth, keysv, valuesv))
	if (!DBIc_DBISTATE(imp_sth)->set_attr(sth, keysv, valuesv))
	    ST(0) = &sv_no;


# FETCH renamed and ALIAS'd to avoid case clash on VMS :-(
void
FETCH_attrib(sth, keysv)
    SV *	sth
    SV *	keysv
    ALIAS:
    FETCH = 1
    CODE:
    D_imp_sth(sth);
    SV *valuesv;
    if (0) ix = ix;	/* avoid unused variable warning */
    valuesv = dbd_st_FETCH_attrib(sth, imp_sth, keysv);
    if (!valuesv)
	valuesv = DBIc_DBISTATE(imp_sth)->get_attr(sth, keysv);
    ST(0) = valuesv;	/* dbd_st_FETCH_attrib did sv_2mortal	*/


void
DESTROY(sth)
    SV *	sth
    PPCODE:
    D_imp_sth(sth);
    ST(0) = &sv_yes;
    if (!DBIc_IMPSET(imp_sth)) {	/* was never fully set up	*/
	STRLEN lna;
	if (DBIc_WARN(imp_sth) && !dirty && DBIc_DBISTATE(imp_sth)->debug >= 2)
	     PerlIO_printf(DBIc_LOGPIO(imp_sth),
		"         DESTROY for %s ignored - handle not initialised\n",
		    SvPV(sth,lna));
    }
    else {
        if (DBIc_IADESTROY(imp_sth)) { /* want's ineffective destroy    */
            DBIc_ACTIVE_off(imp_sth);
	    if (DBIc_DBISTATE(imp_sth)->debug)
		 PerlIO_printf(DBIc_LOGPIO(imp_sth), "         DESTROY %s skipped due to InactiveDestroy\n", SvPV_nolen(sth));
        }
	if (DBIc_ACTIVE(imp_sth)) {
	    D_imp_dbh_from_sth;
	    if (!dirty && DBIc_ACTIVE(imp_dbh)) {
#ifdef dbd_st_finish3
		dbd_st_finish3(sth, imp_sth, 1);
#else
		dbd_st_finish(sth, imp_sth);
#endif
	    }
	    else {
		DBIc_ACTIVE_off(imp_sth);
	    }
	}
	dbd_st_destroy(sth, imp_sth);
    }

# end of ~DRIVER~.xst