mirror of
https://github.com/outbackdingo/UltraGrid.git
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81fabcb61b
Currently it is intended rather only for simple filters that do not change format much (especially tiling mode). When combining filters that change video properties some issues may occur.
89 lines
3.4 KiB
C
89 lines
3.4 KiB
C
/**
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* @file utils/list.h
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* @author Martin Pulec <martin.pulec@cesnet.cz>
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*/
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/*
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* Copyright (c) 2013-2016 CESNET, z. s. p. o.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, is permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* 3. Neither the name of CESNET nor the names of its contributors may be
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* used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESSED OR IMPLIED WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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* AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
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* OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef SIMPLE_LINKED_LIST_H_
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#define SIMPLE_LINKED_LIST_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct simple_linked_list;
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struct simple_linked_list *simple_linked_list_init(void);
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void simple_linked_list_destroy(struct simple_linked_list *);
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void simple_linked_list_append(struct simple_linked_list *, void *data);
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void *simple_linked_list_pop(struct simple_linked_list *);
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int simple_linked_list_size(struct simple_linked_list *);
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void *simple_linked_list_first(struct simple_linked_list *); ///< returns first element of list, UB if empty
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void *simple_linked_list_last(struct simple_linked_list *); ///< returns last element of list, UB if empty
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/** iterator
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*
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* usage:
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* for(void *it = simple_linked_list_it_init(list); it != NULL; ) {
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* o-type *inst = simple_linked_list_it_next(&it);
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* process(inst);
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* if (something_why_to_leave_the_loop) {
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* simple_linked_list_it_destroy(it);
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* break;
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* }
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* }
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*/
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void *simple_linked_list_it_init(struct simple_linked_list *);
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void *simple_linked_list_it_next(void **it);
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void *simple_linked_list_it_peek_next(const void *it); ///< return next item without actually incrementing iterator, UB if item is last (it == NULL)
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///< @returns item
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void simple_linked_list_it_destroy(void *it); ///< Should be used when it != NULL, eg. when leaving the loop before the end
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/**
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* @retval TRUE if removed
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* @retval FALSE if not found
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*/
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int simple_linked_list_remove(struct simple_linked_list *, void *);
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/**
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* @retval pointer pointer to removed value
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* @retval NULL if not found
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*/
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void *simple_linked_list_remove_index(struct simple_linked_list *, int index);
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#ifdef __cplusplus
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}
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#endif
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#endif// SIMPLE_LINKED_LIST_H_
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