mirror of
https://github.com/FEX-Emu/linux.git
synced 2024-12-24 02:18:54 +00:00
b1c00fe3cf
This patch starts a less problematic naming convention for CCID structs.
The old naming convention used 'hc{tx,rx}->ccid?hc{tx,rx}->...' as
recurring prefixes, which made the code
* hard to write (not easy to fit into 80 characters);
* hard to read (most of the space is occupied by prefixes).
The new naming scheme:
* struct entries for the TX socket are prefixed by 'tx_';
* and those for the RX socket are prefixed by 'rx_'.
The identifiers then remain distinguishable when grep-ing through the tree:
(a) RX/TX sockets are distinguished by the naming scheme,
(b) individual CCIDs are distinguished by filename (ccid{2,3,4}.{c,h}).
This first patch implements the scheme for CCID-2.
Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
83 lines
2.3 KiB
C
83 lines
2.3 KiB
C
/*
|
|
* Copyright (c) 2005 Andrea Bittau <a.bittau@cs.ucl.ac.uk>
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
*/
|
|
#ifndef _DCCP_CCID2_H_
|
|
#define _DCCP_CCID2_H_
|
|
|
|
#include <linux/dccp.h>
|
|
#include <linux/timer.h>
|
|
#include <linux/types.h>
|
|
#include "../ccid.h"
|
|
/* NUMDUPACK parameter from RFC 4341, p. 6 */
|
|
#define NUMDUPACK 3
|
|
|
|
struct sock;
|
|
|
|
struct ccid2_seq {
|
|
u64 ccid2s_seq;
|
|
unsigned long ccid2s_sent;
|
|
int ccid2s_acked;
|
|
struct ccid2_seq *ccid2s_prev;
|
|
struct ccid2_seq *ccid2s_next;
|
|
};
|
|
|
|
#define CCID2_SEQBUF_LEN 1024
|
|
#define CCID2_SEQBUF_MAX 128
|
|
|
|
/**
|
|
* struct ccid2_hc_tx_sock - CCID2 TX half connection
|
|
* @tx_{cwnd,ssthresh,pipe}: as per RFC 4341, section 5
|
|
* @tx_packets_acked: Ack counter for deriving cwnd growth (RFC 3465)
|
|
* @tx_lastrtt: time RTT was last measured
|
|
* @tx_rpseq: last consecutive seqno
|
|
* @tx_rpdupack: dupacks since rpseq
|
|
*/
|
|
struct ccid2_hc_tx_sock {
|
|
u32 tx_cwnd;
|
|
u32 tx_ssthresh;
|
|
u32 tx_pipe;
|
|
u32 tx_packets_acked;
|
|
struct ccid2_seq *tx_seqbuf[CCID2_SEQBUF_MAX];
|
|
int tx_seqbufc;
|
|
struct ccid2_seq *tx_seqh;
|
|
struct ccid2_seq *tx_seqt;
|
|
long tx_rto;
|
|
long tx_srtt;
|
|
long tx_rttvar;
|
|
unsigned long tx_lastrtt;
|
|
struct timer_list tx_rtotimer;
|
|
u64 tx_rpseq;
|
|
int tx_rpdupack;
|
|
unsigned long tx_last_cong;
|
|
u64 tx_high_ack;
|
|
};
|
|
|
|
struct ccid2_hc_rx_sock {
|
|
int rx_data;
|
|
};
|
|
|
|
static inline struct ccid2_hc_tx_sock *ccid2_hc_tx_sk(const struct sock *sk)
|
|
{
|
|
return ccid_priv(dccp_sk(sk)->dccps_hc_tx_ccid);
|
|
}
|
|
|
|
static inline struct ccid2_hc_rx_sock *ccid2_hc_rx_sk(const struct sock *sk)
|
|
{
|
|
return ccid_priv(dccp_sk(sk)->dccps_hc_rx_ccid);
|
|
}
|
|
#endif /* _DCCP_CCID2_H_ */
|