61 lines
1.7 KiB
C
61 lines
1.7 KiB
C
#ifndef _DCCP_LI_HIST_
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#define _DCCP_LI_HIST_
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/*
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* net/dccp/ccids/lib/loss_interval.h
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*
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* Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
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* Copyright (c) 2005 Ian McDonald <ian.mcdonald@jandi.co.nz>
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* Copyright (c) 2005 Arnaldo Carvalho de Melo <acme@conectiva.com.br>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <linux/list.h>
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#include <linux/slab.h>
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#include <linux/time.h>
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#define DCCP_LI_HIST_IVAL_F_LENGTH 8
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struct dccp_li_hist {
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kmem_cache_t *dccplih_slab;
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};
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extern struct dccp_li_hist *dccp_li_hist_new(const char *name);
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extern void dccp_li_hist_delete(struct dccp_li_hist *hist);
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struct dccp_li_hist_entry {
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struct list_head dccplih_node;
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u64 dccplih_seqno:48,
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dccplih_win_count:4;
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u32 dccplih_interval;
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};
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static inline struct dccp_li_hist_entry *
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dccp_li_hist_entry_new(struct dccp_li_hist *hist,
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const gfp_t prio)
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{
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return kmem_cache_alloc(hist->dccplih_slab, prio);
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}
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static inline void dccp_li_hist_entry_delete(struct dccp_li_hist *hist,
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struct dccp_li_hist_entry *entry)
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{
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if (entry != NULL)
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kmem_cache_free(hist->dccplih_slab, entry);
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}
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extern void dccp_li_hist_purge(struct dccp_li_hist *hist,
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struct list_head *list);
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extern u32 dccp_li_hist_calc_i_mean(struct list_head *list);
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extern struct dccp_li_hist_entry *
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dccp_li_hist_interval_new(struct dccp_li_hist *hist,
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struct list_head *list,
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const u64 seq_loss,
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const u8 win_loss);
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#endif /* _DCCP_LI_HIST_ */
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