int RECORD_LAYER_read_pending(RECORD_LAYER *rl);
int RECORD_LAYER_write_pending(RECORD_LAYER *rl);
int RECORD_LAYER_set_data(RECORD_LAYER *rl, const unsigned char *buf, int len);
int RECORD_LAYER_read_pending(RECORD_LAYER *rl);
int RECORD_LAYER_write_pending(RECORD_LAYER *rl);
int RECORD_LAYER_set_data(RECORD_LAYER *rl, const unsigned char *buf, int len);