115 lines
3.2 KiB
C
115 lines
3.2 KiB
C
/*
|
|
* This file Copyright (C) 2007-2014 Mnemosyne LLC
|
|
*
|
|
* It may be used under the GNU GPL versions 2 or 3
|
|
* or any future license endorsed by Mnemosyne LLC.
|
|
*
|
|
* $Id$
|
|
*/
|
|
|
|
#ifndef __TRANSMISSION__
|
|
#error only libtransmission should #include this header.
|
|
#endif
|
|
|
|
#ifndef TR_LIST_H
|
|
#define TR_LIST_H
|
|
|
|
/**
|
|
* @addtogroup utils Utilities
|
|
* @{
|
|
*/
|
|
|
|
#include "transmission.h" /* inline */
|
|
|
|
/** @brief simple list structure similar to glib's GList */
|
|
typedef struct tr_list
|
|
{
|
|
void * data;
|
|
struct tr_list * next;
|
|
struct tr_list * prev;
|
|
}
|
|
tr_list;
|
|
|
|
typedef int (*TrListCompareFunc)(const void * a, const void * b);
|
|
typedef void (*TrListForeachFunc)(void *);
|
|
|
|
/**
|
|
* @brief return the number of items in the list
|
|
* @return the number of items in the list
|
|
*/
|
|
int tr_list_size (const tr_list * list);
|
|
|
|
/**
|
|
* @brief free the specified list and set its pointer to NULL
|
|
* @param list pointer to the list to be freed
|
|
* @param func optional function to invoke on each item in the list
|
|
*/
|
|
void tr_list_free (tr_list ** list, TrListForeachFunc data_free_func);
|
|
|
|
/**
|
|
* @brief append an item to the specified list
|
|
* @param list pointer to the list
|
|
* @param item the item to append
|
|
*/
|
|
void tr_list_append (tr_list ** list, void * data);
|
|
|
|
/**
|
|
* @brief prepend an item to the specified list
|
|
* @param list pointer to the list
|
|
* @param item the item to prepend
|
|
*/
|
|
void tr_list_prepend (tr_list ** list, void * data);
|
|
|
|
/**
|
|
* @brief remove the next item in the list
|
|
* @return the next item in the list, or NULL if the list is empty
|
|
* @param list pointer to the list
|
|
*/
|
|
void* tr_list_pop_front (tr_list ** list);
|
|
|
|
/**
|
|
* @brief remove the list's node that contains the specified data pointer
|
|
* @param list pointer to the list
|
|
* @param data data to remove
|
|
* @return the removed data pointer, or NULL if no match was found
|
|
*/
|
|
void* tr_list_remove_data (tr_list ** list, const void * data);
|
|
|
|
/**
|
|
* @brief remove the list's node that compares equal to "b" when compared with "compare_func"
|
|
* @param list pointer to the list
|
|
* @param b the comparison key
|
|
* @param compare_func the comparison function. The arguments passed to it will be the list's pointers and the comparison key "b"
|
|
* @return the removed data pointer, or NULL if no match was found
|
|
*/
|
|
void* tr_list_remove (tr_list ** list,
|
|
const void * b,
|
|
TrListCompareFunc compare_func);
|
|
|
|
/**
|
|
* @brief find the list node whose data that compares equal to "b" when compared with "compare_func"
|
|
* @param list pointer to the list
|
|
* @param b the comparison key
|
|
* @param compare_func the comparison function. The arguments passed to it will be the list's pointers and the comparison key "b"
|
|
* @return the matching list node, or NULL if not match was found
|
|
*/
|
|
tr_list* tr_list_find (tr_list * list,
|
|
const void * b,
|
|
TrListCompareFunc compare_func);
|
|
|
|
/**
|
|
* @brief Insert in an ordered list
|
|
* @param list pointer to the list
|
|
* @param item the item to be inserted
|
|
* @param compare the comparison function.
|
|
*/
|
|
void tr_list_insert_sorted (tr_list ** list,
|
|
void * data,
|
|
TrListCompareFunc compare);
|
|
|
|
|
|
|
|
/* @} */
|
|
#endif /* TR_LIST_H */
|
|
|