168 lines
3.4 KiB
C
168 lines
3.4 KiB
C
/* wmem_slist.c
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* Wireshark Memory Manager Singly-Linked List
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* Copyright 2012, Evan Huus <eapache@gmail.com>
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*
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* $Id$
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*
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* Wireshark - Network traffic analyzer
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* By Gerald Combs <gerald@wireshark.org>
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* Copyright 1998 Gerald Combs
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include <string.h>
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#include <glib.h>
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#include "wmem_core.h"
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#include "wmem_slist.h"
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struct _wmem_slist_frame_t {
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struct _wmem_slist_frame_t *next;
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void *data;
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};
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struct _wmem_slist_t {
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guint count;
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wmem_slist_frame_t *front;
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wmem_allocator_t *allocator;
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};
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guint
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wmem_slist_count(const wmem_slist_t *slist)
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{
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return slist->count;
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}
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wmem_slist_frame_t *
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wmem_slist_front(const wmem_slist_t *slist)
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{
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return slist->front;
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}
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wmem_slist_frame_t *
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wmem_slist_frame_next(const wmem_slist_frame_t *frame)
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{
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return frame->next;
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}
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void *
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wmem_slist_frame_data(const wmem_slist_frame_t *frame)
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{
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return frame->data;
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}
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static wmem_slist_frame_t **
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wmem_slist_tail(wmem_slist_t *slist)
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{
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wmem_slist_frame_t **cur;
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cur = &(slist->front);
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while (*cur) {
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cur = &((*cur)->next);
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}
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return cur;
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}
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static wmem_slist_frame_t **
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wmem_slist_find(wmem_slist_t *slist, void *data)
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{
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wmem_slist_frame_t **cur;
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cur = &(slist->front);
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while (*cur && (*cur)->data != data) {
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cur = &((*cur)->next);
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}
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return cur;
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}
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void
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wmem_slist_remove(wmem_slist_t *slist, void *data)
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{
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wmem_slist_frame_t *frame;
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wmem_slist_frame_t **link;
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link = wmem_slist_find(slist, data);
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frame = *link;
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if (frame == NULL) {
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return;
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}
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*link = frame->next;
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slist->count--;
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wmem_free(slist->allocator, frame);
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}
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void
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wmem_slist_prepend(wmem_slist_t *slist, void *data)
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{
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wmem_slist_frame_t *new_frame;
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new_frame = wmem_new(slist->allocator, wmem_slist_frame_t);
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new_frame->data = data;
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new_frame->next = slist->front;
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slist->front = new_frame;
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slist->count++;
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}
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void
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wmem_slist_append(wmem_slist_t *slist, void *data)
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{
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wmem_slist_frame_t *new_frame, **tail;
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tail = wmem_slist_tail(slist);
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new_frame = wmem_new(slist->allocator, wmem_slist_frame_t);
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new_frame->data = data;
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new_frame->next = NULL;
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*tail = new_frame;
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slist->count++;
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}
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wmem_slist_t *
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wmem_slist_new(wmem_allocator_t *allocator)
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{
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wmem_slist_t *slist;
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slist = wmem_new(allocator, wmem_slist_t);
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slist->count = 0;
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slist->front = NULL;
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slist->allocator = allocator;
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return slist;
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}
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/*
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* Editor modelines - http://www.wireshark.org/tools/modelines.html
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*
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* Local variables:
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* c-basic-offset: 4
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* tab-width: 8
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* indent-tabs-mode: nil
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* End:
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*
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* vi: set shiftwidth=4 tabstop=8 expandtab:
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* :indentSize=4:tabSize=8:noTabs=true:
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*/
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