spandsp  3.0.0
socket_dgram_harness.h
1 /*
2  * SpanDSP - a series of DSP components for telephony
3  *
4  * socket_dgram_harness.h
5  *
6  * Written by Steve Underwood <steveu@coppice.org>
7  *
8  * Copyright (C) 2012, 2022 Steve Underwood
9  *
10  * All rights reserved.
11  *
12  * This program is free software; you can redistribute it and/or modify
13  * it under the terms of the GNU General Public License version 2, as
14  * published by the Free Software Foundation.
15  *
16  * This program 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 General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
24  */
25 
26 #include <sys/socket.h>
27 #include <sys/un.h>
28 
29 typedef int (*termio_update_func_t)(void *user_data, struct termios *termios);
30 
31 typedef int (*put_msg_free_space_func_t)(void *user_data);
32 
33 typedef void (*span_timer_handler_t)(void *user_data);
34 
36 {
37  void *user_data;
38 
39  span_put_msg_func_t terminal_callback;
40  termio_update_func_t termios_callback;
41  span_modem_status_func_t hangup_callback;
42  put_msg_free_space_func_t terminal_free_space_callback;
43 
44  span_put_msg_func_t rx_callback;
45  span_get_msg_func_t tx_callback;
46  span_timer_handler_t timer_callback;
47 
48  int net_fd;
49  int pty_fd;
50  logging_state_t logging;
51  struct termios termios;
52 
53  struct sockaddr_un local_addr;
54  socklen_t local_addr_len;
55  struct sockaddr_un far_addr;
56  socklen_t far_addr_len;
57 
58  unsigned int delay;
59  unsigned int started;
60  unsigned pty_closed;
61  unsigned close_count;
62 
65 
66 extern span_timestamp_t socket_dgram_harness_timer;
67 
68 span_timestamp_t now_us(void);
69 
70 int socket_dgram_harness_run(socket_dgram_harness_state_t *s);
71 
72 int socket_dgram_harness_terminal_write(void *user_data, const uint8_t *buf, size_t len);
73 
74 int socket_dgram_harness_set_user_data(socket_dgram_harness_state_t *s, void *user_data);
75 
77  const char *local_socket_name,
78  const char *far_socket_name,
79  const char *tag,
80  int caller,
81  span_put_msg_func_t terminal_callback,
82  termio_update_func_t termios_callback,
83  span_modem_status_func_t hangup_callback,
84  put_msg_free_space_func_t terminal_free_space_callback,
85  span_put_msg_func_t rx_callback,
86  span_get_msg_func_t tx_callback,
87  span_timer_handler_t timer_callback,
88  void *user_data);
89 
90 int socket_dgram_harness_release(socket_dgram_harness_state_t *s);
91 
92 int socket_dgram_harness_free(socket_dgram_harness_state_t *s);
Definition: socket_dgram_harness.h:35
int(* span_get_msg_func_t)(void *user_data, uint8_t *msg, int max_len)
Definition: async.h:111
void(* span_modem_status_func_t)(void *user_data, int status)
Definition: async.h:131
void(* span_put_msg_func_t)(void *user_data, const uint8_t *msg, int len)
Definition: async.h:107
Definition: private/logging.h:33
Definition: pseudo_terminals.h:33