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/*
Copyright (C) 1994 W. Schelter
This file is part of GNU Common Lisp, herein referred to as GCL
GCL is free software; you can redistribute it and/or modify it under
the terms of the GNU LIBRARY GENERAL PUBLIC LICENSE as published by
the Free Software Foundation; either version 2, or (at your option)
any later version.
GCL is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public
License for more details.
*/
#ifdef HAVE_XDR
#ifdef AIX3
#include <sys/select.h>
#endif
#include <rpc/rpc.h>
extern short aet_sizes[];
static object
FFN(siGxdr_open)(f)
object f;
{ XDR *xdrs;
object ar= alloc_simple_string(sizeof(XDR));
array_allocself(ar,1,0);
xdrs= (XDR *) ar->a.a_self;
if (f->sm.sm_fp == 0) FEerror("stream not ok for xdr io",0);
xdrstdio_create(xdrs, f->sm.sm_fp,
(f->sm.sm_mode == smm_input ? XDR_DECODE :
f->sm.sm_mode == smm_output ? XDR_ENCODE :
(FEerror("stream not input or output",0),XDR_ENCODE)))
;
return ar;
}
static object
FFN(siGxdr_write)(object str,object elt) {
XDR *xdrp= (XDR *) str->ust.ust_self;
xdrproc_t e;
switch (type_of(elt)) {
case t_fixnum:
if(!xdr_long(xdrp,(long *)&fix(elt))) goto error;
break;
case t_longfloat:
if(!xdr_double(xdrp,&lf(elt))) goto error;
break;
case t_shortfloat:
if(!xdr_float(xdrp,&sf(elt))) goto error;
break;
case t_vector:
switch(elt->v.v_elttype) {
case aet_lf:
e=(xdrproc_t)xdr_double;
break;
case aet_sf:
e=(xdrproc_t)xdr_float;
break;
case aet_fix:
e=(xdrproc_t)xdr_long;
break;
case aet_short:
e=(xdrproc_t)xdr_short;
break;
default:
FEerror("unsupported xdr size",0);
goto error;
break;
}
{
u_int tmp=elt->v.v_fillp;
if (tmp!=elt->v.v_fillp)
goto error;
if(!xdr_array(xdrp,(void *)&elt->v.v_self,
&tmp,
elt->v.v_dim,
aet_sizes[elt->v.v_elttype],
e))
goto error;
}
break;
default:
FEerror("unsupported xdr ~a",1,elt);
break;
}
return elt;
error:
FEerror("bad xdr read",0);
return elt;
}
static object
FFN(siGxdr_read)(object str,object elt) {
XDR *xdrp= (XDR *) str->ust.ust_self;
xdrproc_t e;
switch (type_of(elt)) {
case t_fixnum:
{fixnum l;
if(!xdr_long(xdrp,(long *)&l)) goto error;
return make_fixnum(l);}
break;
case t_longfloat:
{double x;
if(!xdr_double(xdrp,&x)) goto error;
return make_longfloat(x);}
case t_shortfloat:
{float x;
if(!xdr_float(xdrp,&x)) goto error;
return make_shortfloat(x);}
case t_vector:
switch(elt->v.v_elttype) {
case aet_lf:
e=(xdrproc_t)xdr_double;
break;
case aet_sf:
e=(xdrproc_t)xdr_float;
break;
case aet_fix:
e=(xdrproc_t)xdr_long;
break;
case aet_short:
e=(xdrproc_t)xdr_short;
break;
default:
FEerror("unsupported xdr size",0);
goto error;
break;
}
{
u_int tmp=elt->v.v_fillp;
if (tmp!=elt->v.v_fillp)
goto error;
if(!xdr_array(xdrp,(void *)&elt->v.v_self,
&tmp,
elt->v.v_dim,
aet_sizes[elt->v.v_elttype],
e))
goto error;
}
return elt;
break;
default:
FEerror("unsupported xdr ~a",1,elt);
return elt;
break;
}
error:
FEerror("bad xdr read",0);
return elt;
}
static void
gcl_init_xdrfuns()
{ make_si_sfun("XDR-WRITE",siGxdr_write,
ARGTYPE2(f_object,f_object)|RESTYPE(f_object));
make_si_sfun("XDR-READ",siGxdr_read,
ARGTYPE2(f_object,f_object)|RESTYPE(f_object));
make_si_sfun("XDR-OPEN",siGxdr_open,
ARGTYPE1(f_object)|RESTYPE(f_object));
}
#else
static void gcl_init_xdrfuns(void) {;}
#endif
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