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Fixed MTP to work with TWRP

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awab228 2018-06-19 23:16:04 +02:00
commit f6dfaef42e
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73
net/dccp/ccids/lib/loss_interval.h Normal file
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#ifndef _DCCP_LI_HIST_
#define _DCCP_LI_HIST_
/*
* Copyright (c) 2007 The University of Aberdeen, Scotland, UK
* Copyright (c) 2005-7 The University of Waikato, Hamilton, New Zealand.
* Copyright (c) 2005-7 Ian McDonald <ian.mcdonald@jandi.co.nz>
* Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
*
* 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.
*/
#include <linux/ktime.h>
#include <linux/list.h>
#include <linux/slab.h>
/*
* Number of loss intervals (RFC 4342, 8.6.1). The history size is one more than
* NINTERVAL, since the `open' interval I_0 is always stored as the first entry.
*/
#define NINTERVAL 8
#define LIH_SIZE (NINTERVAL + 1)
/**
* tfrc_loss_interval - Loss history record for TFRC-based protocols
* @li_seqno: Highest received seqno before the start of loss
* @li_ccval: The CCVal belonging to @li_seqno
* @li_is_closed: Whether @li_seqno is older than 1 RTT
* @li_length: Loss interval sequence length
*/
struct tfrc_loss_interval {
u64 li_seqno:48,
li_ccval:4,
li_is_closed:1;
u32 li_length;
};
/**
* tfrc_loss_hist - Loss record database
* @ring: Circular queue managed in LIFO manner
* @counter: Current count of entries (can be more than %LIH_SIZE)
* @i_mean: Current Average Loss Interval [RFC 3448, 5.4]
*/
struct tfrc_loss_hist {
struct tfrc_loss_interval *ring[LIH_SIZE];
u8 counter;
u32 i_mean;
};
static inline void tfrc_lh_init(struct tfrc_loss_hist *lh)
{
memset(lh, 0, sizeof(struct tfrc_loss_hist));
}
static inline u8 tfrc_lh_is_initialised(struct tfrc_loss_hist *lh)
{
return lh->counter > 0;
}
static inline u8 tfrc_lh_length(struct tfrc_loss_hist *lh)
{
return min(lh->counter, (u8)LIH_SIZE);
}
struct tfrc_rx_hist;
int tfrc_lh_interval_add(struct tfrc_loss_hist *, struct tfrc_rx_hist *,
u32 (*first_li)(struct sock *), struct sock *);
u8 tfrc_lh_update_i_mean(struct tfrc_loss_hist *lh, struct sk_buff *);
void tfrc_lh_cleanup(struct tfrc_loss_hist *lh);
#endif /* _DCCP_LI_HIST_ */