WAND Trace processing  4.0.5
deque.h
1 /*
2  *
3  * Copyright (c) 2007-2016 The University of Waikato, Hamilton, New Zealand.
4  * All rights reserved.
5  *
6  * This file is part of libtrace.
7  *
8  * This code has been developed by the University of Waikato WAND
9  * research group. For further information please see http://www.wand.net.nz/
10  *
11  * libtrace is free software; you can redistribute it and/or modify
12  * it under the terms of the GNU Lesser General Public License as published by
13  * the Free Software Foundation; either version 3 of the License, or
14  * (at your option) any later version.
15  *
16  * libtrace is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19  * GNU Lesser General Public License for more details.
20  *
21  * You should have received a copy of the GNU Lesser General Public License
22  * along with this program. If not, see <http://www.gnu.org/licenses/>.
23  *
24  *
25  */
26 #include <pthread.h>
27 #include "../libtrace.h"
28 
29 #ifndef LIBTRACE_DEQUE_H
30 #define LIBTRACE_DEQUE_H
31 
32 typedef struct list_node list_node_t;
33 typedef void (*deque_data_fn)(void *data);
34 typedef struct libtrace_queue {
35  list_node_t * head;
36  list_node_t * tail;
37  pthread_mutex_t lock;
38  size_t size;
39  size_t element_size;
41 
42 DLLEXPORT void libtrace_deque_init(libtrace_queue_t * q, size_t element_size);
43 DLLEXPORT void libtrace_deque_push_back(libtrace_queue_t *q, void *d);
44 DLLEXPORT void libtrace_deque_push_front(libtrace_queue_t *q, void *d);
45 DLLEXPORT size_t libtrace_deque_get_size(libtrace_queue_t *q);
46 
47 DLLEXPORT int libtrace_deque_peek_front(libtrace_queue_t *q, void *d);
48 DLLEXPORT int libtrace_deque_peek_tail(libtrace_queue_t *q, void *d);
49 DLLEXPORT int libtrace_deque_pop_front(libtrace_queue_t *q, void *d);
50 DLLEXPORT int libtrace_deque_pop_tail(libtrace_queue_t *q, void *d);
51 DLLEXPORT void libtrace_zero_deque(libtrace_queue_t *q);
52 
53 // Apply a given function to every data item, while keeping the entire
54 // structure locked from external modifications
55 DLLEXPORT void libtrace_deque_apply_function(libtrace_queue_t *q, deque_data_fn fn);
56 
57 #endif
Definition: deque.h:34