/usr/include/gpac/list.h is in libgpac-dev 0.5.0+svn4288~dfsg1-4ubuntu1.
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* GPAC - Multimedia Framework C SDK
*
* Authors: Jean Le Feuvre
* Copyright (c) Telecom ParisTech 2000-2012
* All rights reserved
*
* This file is part of GPAC / common tools sub-project
*
* GPAC 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 2, or (at your option)
* any later version.
*
* GPAC 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; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef _GF_LIST_H_
#define _GF_LIST_H_
#ifdef __cplusplus
extern "C" {
#endif
/*!
* \file <gpac/list.h>
* \brief list functions.
*/
/*!
* \addtogroup list_grp list
* \ingroup utils_grp
* \brief List object
*
* This section documents the list object of the GPAC framework.
* @{
*/
#include <gpac/tools.h>
typedef struct _tag_array GF_List;
/*!
* \brief list constructor
*
* Constructs a new list object
* \return new list object
*/
GF_List *gf_list_new();
/*!
* \brief list destructor
*
* Destructs a list object
* \param ptr list object to destruct
* \note It is the caller responsability to destroy the content of the list if needed
*/
void gf_list_del(GF_List *ptr);
/*!
* \brief get count
*
* Returns number of items in the list
* \param ptr target list object
* \return number of items in the list
*/
u32 gf_list_count(const GF_List *ptr);
/*!
* \brief add item
*
* Adds an item at the end of the list
* \param ptr target list object
* \param item item to add
*/
GF_Err gf_list_add(GF_List *ptr, void* item);
/*!
* \brief inserts item
*
* Insert an item in the list
* \param ptr target list object
* \param item item to add
* \param position insertion position. It is expressed between 0 and gf_list_count-1, and any bigger value is equivalent to gf_list_add
*/
GF_Err gf_list_insert(GF_List *ptr, void *item, u32 position);
/*!
* \brief removes item
*
* Removes an item from the list given its position
* \param ptr target list object
* \param position position of the item to remove. It is expressed between 0 and gf_list_count-1.
* \note It is the caller responsability to destroy the content of the list if needed
*/
GF_Err gf_list_rem(GF_List *ptr, u32 position);
/*!
* \brief gets item
*
* Gets an item from the list given its position
* \param ptr target list object
* \param position position of the item to get. It is expressed between 0 and gf_list_count-1.
*/
void *gf_list_get(GF_List *ptr, u32 position);
/*!
* \brief finds item
*
* Finds an item in the list
* \param ptr target list object.
* \param item the item to find.
* \return 0-based item position in the list, or -1 if the item could not be found.
*/
s32 gf_list_find(GF_List *ptr, void *item);
/*!
* \brief deletes item
*
* Deletes an item from the list
* \param ptr target list object.
* \param item the item to find.
* \return 0-based item position in the list before removal, or -1 if the item could not be found.
*/
s32 gf_list_del_item(GF_List *ptr, void *item);
/*!
* \brief resets list
*
* Resets the content of the list
* \param ptr target list object.
* \note It is the caller responsability to destroy the content of the list if needed
*/
void gf_list_reset(GF_List *ptr);
/*!
* \brief gets last item
*
* Gets last item o fthe list
* \param ptr target list object
*/
void *gf_list_last(GF_List *ptr);
/*!
* \brief removes last item
*
* Removes the last item of the list
* \param ptr target list object
* \note It is the caller responsability to destroy the content of the list if needed
*/
GF_Err gf_list_rem_last(GF_List *ptr);
/*!
* \brief list enumerator
*
* Retrieves given list item and increment current position
* \param ptr target list object
* \param pos target item position. The position is automatically incremented regardless of the return value
* \note A typical enumeration will start with a value of 0 until NULL is returned.
*/
void *gf_list_enum(GF_List *ptr, u32 *pos);
/*!
* \brief list swap
*
* Swaps content of two lists
* \param l1 first list object
* \param l2 second list object
*/
GF_Err gf_list_swap(GF_List *l1, GF_List *l2);
/*! @} */
#ifdef __cplusplus
}
#endif
#endif /*_GF_LIST_H_*/
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