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modbus_set_socket()					     modbus_set_socket()

Name
     modbus_set_socket - set socket of the context

Synopsis
     int modbus_set_socket(modbus_t *ctx, int s);

Description
     The modbus_set_socket() function shall set the socket or file descriptor in
     the libmodbus context. This function is useful for managing multiple client
     connections to the same server.

Return value
     The function shall return 0 if successful. Otherwise it shall return -1 and
     set errno.

Example
     ctx = modbus_new_tcp("127.0.0.1", 502);
     server_socket = modbus_tcp_listen(ctx, NB_CONNECTION);

     FD_ZERO(&rdset);
     FD_SET(server_socket, &rdset);

     /* .... */

     if (FD_ISSET(master_socket, &rdset)) {
	 modbus_set_socket(ctx, master_socket);
	 rc = modbus_receive(ctx, query);
	 if (rc != -1) {
	     modbus_reply(ctx, query, rc, mb_mapping);
	 }
     }

See also
     * modbus_get_socket <modbus_get_socket.md>

							     modbus_set_socket()

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