/* GNU Mailutils -- a suite of utilities for electronic mail Copyright (C) 1999-2001, 2004-2005, 2007-2008, 2010-2012, 2014-2017 Free Software Foundation, Inc. This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 3 of the License, or (at your option) any later version. This library 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 Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library. If not, see <http://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif #include <stdlib.h> #include <mailutils/sys/list.h> #include <mailutils/errno.h> int _mu_list_insert_item (mu_list_t list, struct list_data *current, void *new_item, int insert_before) { int status; struct list_data *ldata = calloc (sizeof (*ldata), 1); if (ldata == NULL) status = ENOMEM; else { ldata->item = new_item; _mu_list_insert_sublist (list, current, ldata, ldata, 1, insert_before); status = 0; } return status; } int mu_list_insert (mu_list_t list, void *item, void *new_item, int insert_before) { struct list_data *current; mu_list_comparator_t comp; int status = MU_ERR_NOENT; if (list == NULL) return EINVAL; comp = list->comp ? list->comp : _mu_list_ptr_comparator; mu_monitor_wrlock (list->monitor); for (current = list->head.next; current != &list->head; current = current->next) { if (comp (current->item, item) == 0) { status = _mu_list_insert_item (list, current, new_item, insert_before); break; } } mu_monitor_unlock (list->monitor); return status; }