server/server: Add ability to remove services
[openocd.git] / src / server / server.h
1 /***************************************************************************
2 * Copyright (C) 2005 by Dominic Rath *
3 * Dominic.Rath@gmx.de *
4 * *
5 * Copyright (C) 2007,2008 √ėyvind Harboe *
6 * oyvind.harboe@zylin.com *
7 * *
8 * Copyright (C) 2008 by Spencer Oliver *
9 * spen@spen-soft.co.uk *
10 * *
11 * This program is free software; you can redistribute it and/or modify *
12 * it under the terms of the GNU General Public License as published by *
13 * the Free Software Foundation; either version 2 of the License, or *
14 * (at your option) any later version. *
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, see <http://www.gnu.org/licenses/>. *
23 ***************************************************************************/
24
25 #ifndef OPENOCD_SERVER_SERVER_H
26 #define OPENOCD_SERVER_SERVER_H
27
28 #ifdef HAVE_CONFIG_H
29 #include "config.h"
30 #endif
31
32 #include <helper/log.h>
33
34 #ifdef HAVE_NETINET_IN_H
35 #include <netinet/in.h>
36 #endif
37
38 enum connection_type {
39 CONNECTION_TCP,
40 CONNECTION_PIPE,
41 CONNECTION_STDINOUT
42 };
43
44 #define CONNECTION_LIMIT_UNLIMITED (-1)
45
46 struct connection {
47 int fd;
48 int fd_out; /* When using pipes we're writing to a different fd */
49 struct sockaddr_in sin;
50 struct command_context *cmd_ctx;
51 struct service *service;
52 int input_pending;
53 void *priv;
54 struct connection *next;
55 };
56
57 typedef int (*new_connection_handler_t)(struct connection *connection);
58 typedef int (*input_handler_t)(struct connection *connection);
59 typedef int (*connection_closed_handler_t)(struct connection *connection);
60
61 struct service {
62 char *name;
63 enum connection_type type;
64 char *port;
65 unsigned short portnumber;
66 int fd;
67 struct sockaddr_in sin;
68 int max_connections;
69 struct connection *connections;
70 new_connection_handler_t new_connection;
71 input_handler_t input;
72 connection_closed_handler_t connection_closed;
73 void *priv;
74 struct service *next;
75 };
76
77 int add_service(char *name, const char *port,
78 int max_connections, new_connection_handler_t new_connection_handler,
79 input_handler_t in_handler, connection_closed_handler_t close_handler,
80 void *priv);
81 int remove_service(const char *name, const char *port);
82
83 int server_preinit(void);
84 int server_init(struct command_context *cmd_ctx);
85 int server_quit(void);
86 void server_free(void);
87 void exit_on_signal(int);
88
89 int server_loop(struct command_context *command_context);
90
91 int server_register_commands(struct command_context *context);
92
93 int connection_write(struct connection *connection, const void *data, int len);
94 int connection_read(struct connection *connection, void *data, int len);
95
96 /**
97 * Used by server_loop(), defined in server_stubs.c
98 */
99 void openocd_sleep_prelude(void);
100 /**
101 * Used by server_loop(), defined in server_stubs.c
102 */
103 void openocd_sleep_postlude(void);
104
105 /**
106 * Defines an extended command handler function declaration to enable
107 * access to (and manipulation of) the server port number.
108 * Call server_port like a normal COMMAND_HANDLER with an extra @a out parameter
109 * to receive the specified port number.
110 */
111 COMMAND_HELPER(server_pipe_command, char **out);
112
113 COMMAND_HELPER(server_port_command, unsigned short *out);
114
115 #define ERROR_SERVER_REMOTE_CLOSED (-400)
116 #define ERROR_CONNECTION_REJECTED (-401)
117
118 #endif /* OPENOCD_SERVER_SERVER_H */