libosmocore  0.9.3
Osmocom core library
include/osmocom/core/write_queue.h
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00001 /* Generic write queue implementation */
00002 /*
00003  * (C) 2010 by Holger Hans Peter Freyther
00004  * (C) 2010 by On-Waves
00005  *
00006  * All Rights Reserved
00007  *
00008  * This program is free software; you can redistribute it and/or modify
00009  * it under the terms of the GNU General Public License as published by
00010  * the Free Software Foundation; either version 2 of the License, or
00011  * (at your option) any later version.
00012  *
00013  * This program is distributed in the hope that it will be useful,
00014  * but WITHOUT ANY WARRANTY; without even the implied warranty of
00015  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
00016  * GNU General Public License for more details.
00017  *
00018  * You should have received a copy of the GNU General Public License along
00019  * with this program; if not, write to the Free Software Foundation, Inc.,
00020  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
00021  *
00022  */
00023 #pragma once
00024 
00032 #include <osmocom/core/select.h>
00033 #include <osmocom/core/msgb.h>
00034 
00036 struct osmo_wqueue {
00038         struct osmo_fd bfd;
00040         unsigned int max_length;
00042         unsigned int current_length;
00043 
00045         struct llist_head msg_queue;
00046 
00048         int (*read_cb)(struct osmo_fd *fd);
00050         int (*write_cb)(struct osmo_fd *fd, struct msgb *msg);
00052         int (*except_cb)(struct osmo_fd *fd);
00053 };
00054 
00055 void osmo_wqueue_init(struct osmo_wqueue *queue, int max_length);
00056 void osmo_wqueue_clear(struct osmo_wqueue *queue);
00057 int osmo_wqueue_enqueue(struct osmo_wqueue *queue, struct msgb *data);
00058 int osmo_wqueue_bfd_cb(struct osmo_fd *fd, unsigned int what);
00059