-/**
- * The post select hook for client commands.
- *
- * \param s Pointer to the scheduler.
- * \param t Pointer to the task struct for this command.
- *
- * Depending on the current state of the connection and the status of the read
- * and write fd sets of \a s, this function performs the necessary steps to
- * authenticate the connection, to send the command given by \a t->private_data
- * and to receive para_server's output, if any.
+/*
+ * This function reads or writes to the socket file descriptor which
+ * corresponds to an established connection between the client and the server.
+ * It depends on the current state of the connection and on the readiness of
+ * the socket file descriptor which type of I/O is going to be performed.
+ * Besides the initial handshake and authentication, the function sends the
+ * server command and receives the output from the server, if any.