src/server/server.h

   1 /***************************************************************************
   2  *   Copyright (C) 2005 by Dominic Rath                                    *
   3  *   Dominic.Rath@gmx.de                                                   *
   4  *                                                                         *
   5  *   Copyright (C) 2007,2008 Øyvind 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, write to the                         *
  23  *   Free Software Foundation, Inc.,                                       *
  24  *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.           *
  25  ***************************************************************************/
  26
  27 #ifndef SERVER_H
  28 #define SERVER_H
  29
  30 #include <helper/log.h>
  31
  32 #ifdef HAVE_NETINET_IN_H
  33 #include <netinet/in.h>
  34 #endif
  35
  36 enum connection_type {
  37         CONNECTION_TCP,
  38         CONNECTION_PIPE,
  39         CONNECTION_STDINOUT
  40 };
  41
  42 struct connection {
  43         int fd;
  44         int fd_out;     /* When using pipes we're writing to a different fd */
  45         struct sockaddr_in sin;
  46         struct command_context *cmd_ctx;
  47         struct service *service;
  48         int input_pending;
  49         void *priv;
  50         struct connection *next;
  51 };
  52
  53 typedef int (*new_connection_handler_t)(struct connection *connection);
  54 typedef int (*input_handler_t)(struct connection *connection);
  55 typedef int (*connection_closed_handler_t)(struct connection *connection);
  56
  57 struct service {
  58         const char *name;
  59         enum connection_type type;
  60         const char *port;
  61         unsigned short portnumber;
  62         int fd;
  63         struct sockaddr_in sin;
  64         int max_connections;
  65         struct connection *connections;
  66         new_connection_handler_t new_connection;
  67         input_handler_t input;
  68         connection_closed_handler_t connection_closed;
  69         void *priv;
  70         struct service *next;
  71 };
  72
  73 int add_service(char *name, const char *port,
  74                 int max_connections, new_connection_handler_t new_connection_handler,
  75                 input_handler_t in_handler, connection_closed_handler_t close_handler,
  76                 void *priv);
  77
  78 int server_preinit(void);
  79 int server_init(struct command_context *cmd_ctx);
  80 int server_quit(void);
  81
  82 int server_loop(struct command_context *command_context);
  83
  84 int server_register_commands(struct command_context *context);
  85
  86 int connection_write(struct connection *connection, const void *data, int len);
  87 int connection_read(struct connection *connection, void *data, int len);
  88
  89 /**
  90  * Used by server_loop(), defined in server_stubs.c
  91  */
  92 void openocd_sleep_prelude(void);
  93 /**
  94  * Used by server_loop(), defined in server_stubs.c
  95  */
  96 void openocd_sleep_postlude(void);
  97
  98 /**
  99  * Defines an extended command handler function declaration to enable
 100  * access to (and manipulation of) the server port number.
 101  * Call server_port like a normal COMMAND_HANDLER with an extra @a out parameter
 102  * to receive the specified port number.
 103  */
 104 #define SERVER_PIPE_COMMAND() \
 105         COMMAND_HELPER(server_pipe_command, const char **out)
 106 SERVER_PIPE_COMMAND();
 107
 108 #define SERVER_PORT_COMMAND() \
 109         COMMAND_HELPER(server_port_command, unsigned short *out)
 110
 111 SERVER_PORT_COMMAND();
 112
 113 #define ERROR_SERVER_REMOTE_CLOSED              (-400)
 114 #define ERROR_CONNECTION_REJECTED               (-401)
 115
 116 #endif  /* SERVER_H */