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Diffstat (limited to 'VES5.0/evel/evel-library/code/evel_library/double_list.h')
-rw-r--r-- | VES5.0/evel/evel-library/code/evel_library/double_list.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/VES5.0/evel/evel-library/code/evel_library/double_list.h b/VES5.0/evel/evel-library/code/evel_library/double_list.h new file mode 100644 index 00000000..e8bdd742 --- /dev/null +++ b/VES5.0/evel/evel-library/code/evel_library/double_list.h @@ -0,0 +1,70 @@ +#ifndef DOUBLE_LIST_INCLUDED +#define DOUBLE_LIST_INCLUDED + +/**************************************************************************//** + * @file + * A simple double-linked list. + * + * @note No thread protection so you will need to use appropriate + * synchronization if use spans multiple threads. + * + * License + * ------- + * + * Copyright(c) <2016>, AT&T Intellectual Property. All other rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are met: + * + * 1. Redistributions of source code must retain the above copyright notice, + * this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright notice, + * this list of conditions and the following disclaimer in the documentation + * and/or other materials provided with the distribution. + * 3. All advertising materials mentioning features or use of this software + * must display the following acknowledgement: This product includes + * software developed by the AT&T. + * 4. Neither the name of AT&T nor the names of its contributors may be used to + * endorse or promote products derived from this software without specific + * prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY AT&T INTELLECTUAL PROPERTY ''AS IS'' AND ANY + * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED + * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL AT&T INTELLECTUAL PROPERTY BE LIABLE FOR ANY + * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES + * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; + * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND + * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF + * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. +*****************************************************************************/ + +typedef struct dlist_item +{ + struct dlist_item * previous; + struct dlist_item * next; + void * item; +} DLIST_ITEM; + +/**************************************************************************//** + * Double-linked list structure + *****************************************************************************/ +typedef struct dlist +{ + DLIST_ITEM * head; + DLIST_ITEM * tail; +} DLIST; + + +void dlist_initialize(DLIST * list); +void * dlist_pop_last(DLIST * list); +void dlist_push_first(DLIST * list, void * item); +void dlist_push_last(DLIST * list, void * item); +DLIST_ITEM * dlist_get_first(DLIST * list); +DLIST_ITEM * dlist_get_last(DLIST * list); +DLIST_ITEM * dlist_get_next(DLIST_ITEM * item); +int dlist_is_empty(DLIST * list); +int dlist_count(DLIST * list); + +#endif |