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/*
* Copyright (C) 2002 Red Hat, Inc.
*
* This 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 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 Library General Public
* License along with this program; if not, write to the Free Software
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
/* The interfaces in this file are subject to change at any time. */
#ifndef vte_ring_h_included
#define vte_ring_h_included
#ident "$Id$"
#include <glib.h>
G_BEGIN_DECLS
typedef struct _VteRing VteRing;
typedef void (*VteRingFreeFunc)(gpointer freeing, gpointer data);
struct _VteRing {
VteRingFreeFunc free;
gpointer user_data;
gpointer *array;
glong delta, length, max;
};
#define vte_ring_contains(__ring, __position) \
((__position >= (__ring)->delta) && \
(__position < (__ring)->delta + (__ring)->length))
#define vte_ring_delta(__ring) ((__ring)->delta)
#define vte_ring_length(__ring) ((__ring)->length)
#define vte_ring_next(__ring) ((__ring)->delta + (__ring)->length)
#define vte_ring_max(__ring) ((__ring)->max)
#define vte_ring_at(__ring, __position) \
((__ring)->array[__position % (__ring)->max] ? \
(__ring)->array[__position % (__ring)->max] : \
(g_error("NULL at %ld(->%ld) delta %ld, length %ld, max %ld next %ld" \
" at %d\n", \
__position, __position % (__ring)->max, \
(__ring)->delta, (__ring)->length, (__ring)->max, \
(__ring)->delta + (__ring)->length, \
__LINE__), NULL))
#define vte_ring_index(__ring, __cast, __position) \
(__cast) vte_ring_at(__ring, __position)
VteRing *vte_ring_new(glong max_elements,
VteRingFreeFunc free,
gpointer data);
VteRing *vte_ring_new_with_delta(glong max_elements, glong delta,
VteRingFreeFunc free, gpointer data);
void vte_ring_insert(VteRing *ring, glong position, gpointer data);
void vte_ring_remove(VteRing *ring, glong position, gboolean free_element);
void vte_ring_append(VteRing *ring, gpointer data);
void vte_ring_free(VteRing *ring, gboolean free_elements);
G_END_DECLS
#endif
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