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57 lines
1.9 KiB
C
57 lines
1.9 KiB
C
/* list.h -- CoAP list structures
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*
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* Copyright (C) 2010 Olaf Bergmann <bergmann@tzi.org>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (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
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*/
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#ifndef _COAP_LIST_H_
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#define _COAP_LIST_H_
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struct coap_linkedlistnode {
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struct coap_linkedlistnode *next;
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void *data;
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/**
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* Callback function that is called from coap_delete to release
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* additional memory allocated by data Set to NULL if you do not
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* need this. Note that data is free'd automatically. */
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void (*delete)(void *);
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};
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typedef struct coap_linkedlistnode coap_list_t;
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/**
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* Adds node to given queue, ordered by specified order function. Returns 1
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* when insert was successful, 0 otherwise.
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*/
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int coap_insert(coap_list_t **queue, coap_list_t *node,
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int (*order)(void *, void *) );
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/* destroys specified node */
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int coap_delete(coap_list_t *node);
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/* removes all items from given queue and frees the allocated storage */
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void coap_delete_list(coap_list_t *queue);
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/**
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* Creates a new list node and adds the given data object. The memory allocated
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* by data will be released by coap_delete() with the new node. Returns the
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* new list node.
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*/
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coap_list_t *coap_new_listnode(void *data, void (*delete)(void *) );
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#endif /* _COAP_LIST_H_ */
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