libosmocore  0.6.3
Osmocom core library
write_queue.h
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1 /* Generic write queue implementation */
2 /*
3  * (C) 2010 by Holger Hans Peter Freyther
4  * (C) 2010 by On-Waves
5  *
6  * All Rights Reserved
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License as published by
10  * the Free Software Foundation; either version 2 of the License, or
11  * (at your option) any later version.
12  *
13  * This program is distributed in the hope that it will be useful,
14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16  * GNU General Public License for more details.
17  *
18  * You should have received a copy of the GNU General Public License along
19  * with this program; if not, write to the Free Software Foundation, Inc.,
20  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
21  *
22  */
23 #ifndef OSMO_WQUEUE_H
24 #define OSMO_WQUEUE_H
25 
33 #include <osmocom/core/select.h>
34 #include <osmocom/core/msgb.h>
35 
37 struct osmo_wqueue {
39  struct osmo_fd bfd;
41  unsigned int max_length;
43  unsigned int current_length;
44 
47 
49  int (*read_cb)(struct osmo_fd *fd);
51  int (*write_cb)(struct osmo_fd *fd, struct msgb *msg);
53  int (*except_cb)(struct osmo_fd *fd);
54 };
55 
56 void osmo_wqueue_init(struct osmo_wqueue *queue, int max_length);
57 void osmo_wqueue_clear(struct osmo_wqueue *queue);
58 int osmo_wqueue_enqueue(struct osmo_wqueue *queue, struct msgb *data);
59 int osmo_wqueue_bfd_cb(struct osmo_fd *fd, unsigned int what);
60 
63 #endif