110 lines
2.9 KiB
C
110 lines
2.9 KiB
C
/* wmem_allocator_glib.c
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* Wireshark Memory Manager GLib-Based Allocator
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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_allocator.h"
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/* In this trivial allocator, we just store a GSList of g_malloc()ed
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* blocks in the private_data pointer. */
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typedef struct _wmem_glib_allocator_t {
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GSList *block_list;
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} wmem_glib_allocator_t;
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static void *
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wmem_glib_alloc(void *private_data, size_t size)
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{
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void *buf;
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wmem_glib_allocator_t *allocator = (wmem_glib_allocator_t*) private_data;
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buf = g_malloc(size);
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allocator->block_list = g_slist_prepend(allocator->block_list, buf);
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return buf;
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}
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static void
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wmem_glib_free_all(void *private_data)
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{
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wmem_glib_allocator_t *allocator = (wmem_glib_allocator_t*) private_data;
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GSList *tmp;
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/* We can't use g_slist_free_full() as it was only introduced in GLIB 2.28
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* while we support way back to 2.14. So loop through and manually free
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* each block, then call g_slist_free(). */
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tmp = allocator->block_list;
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while (tmp) {
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g_free(tmp->data);
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tmp = tmp->next;
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}
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g_slist_free(allocator->block_list);
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allocator->block_list = NULL;
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}
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static void
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wmem_destroy_glib_allocator(wmem_allocator_t *allocator)
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{
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g_free(allocator->private_data);
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g_free(allocator);
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}
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wmem_allocator_t *
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wmem_create_glib_allocator(void)
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{
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wmem_allocator_t *allocator;
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wmem_glib_allocator_t *glib_allocator;
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allocator = g_new(wmem_allocator_t, 1);
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glib_allocator = g_new(wmem_glib_allocator_t, 1);
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allocator->alloc = &wmem_glib_alloc;
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allocator->free_all = &wmem_glib_free_all;
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allocator->destroy = &wmem_destroy_glib_allocator;
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allocator->private_data = (void*) glib_allocator;
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glib_allocator->block_list = NULL;
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return allocator;
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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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