modbus_set_socket(3) debian man page | unix.com

MODBUS_SET_SOCKET(3)						 Libmodbus Manual					      MODBUS_SET_SOCKET(3)

NAME
       modbus_set_socket - set socket of the context

SYNOPSIS
       void modbus_set_socket(modbus_t *ctx, int socket);

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
       There is no return values.

EXAMPLE
	   ctx = modbus_new_tcp("127.0.0.1", 1502);
	   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(3)

AUTHORS
       The libmodbus documentation was written by Stephane Raimbault <stephane.raimbault@gmail.com[1]>

NOTES
	1. stephane.raimbault@gmail.com
	   mailto:stephane.raimbault@gmail.com

libmodbus 3.0.3 						    05/26/2012						      MODBUS_SET_SOCKET(3)