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/* alist.h
*
* Associate atoms with objects (or functions) .
*
*/
/* lsh, an implementation of the ssh protocol
*
* Copyright (C) 1998 Niels Mller
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of the
* License, or (at your option) any later version.
*
* This program 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
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#ifndef LSH_ALIST_H_INCLUDED
#define LSH_ALIST_H_INCLUDED
#include <stdarg.h>
#include "lsh.h"
/* Forward declaration */
struct alist;
#define GABA_DECLARE
#include "alist.h.x"
#undef GABA_DECLARE
/* Abstract interface allows for multiple implementations ("real"
* alists, linear tables, hash tables */
/* GABA:
(meta
(name alist)
(methods
"struct lsh_object * (*get)(struct alist *self, int atom)"
"void (*set)(struct alist *self, int atom, struct lsh_object *value)"))
*/
/* GABA:
(class
(name alist)
(meta alist)
(vars
(size . unsigned))
; Only subclasses has methods
(methods NULL NULL))
*/
#define ALIST_CLASS(l) ((struct alist_meta *) ((l)->super.isa))
#define ALIST_GET(alist, atom) \
(ALIST_CLASS(alist)->get((alist), (atom)))
#define ALIST_SET(alist, atom, value) \
(ALIST_CLASS(alist)->set((alist), (atom), (value)))
struct alist *alist_addv(struct alist *a, unsigned n, va_list args);
/* n is the number of pairs. The argument list should be terminated
* with -1, for sanity checks. */
struct alist *make_linear_alist(unsigned n, ...);
struct alist *make_linked_alist(unsigned n, ...);
#define make_alist make_linear_alist
unsigned
alist_select(struct alist *dst, struct alist *src,
struct int_list *names);
unsigned
alist_select_l(struct alist *dst, struct alist *src,
unsigned n, ...);
#endif /* LSH_ALIST_H_INCLUDED */
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