modbus_flush

Name

modbus_flush - flush non-transmitted data

Synopsis
    int modbus_flush(modbus_t *ctx);

Description

The modbus_flush() function shall discard data received but not read to the socket or file descriptor associated to the context 'ctx'.

Return value

The function shall return 0 or the number of flushed bytes if successful. Otherwise it shall return -1 and set errno.