This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / net / dccp / ccids / lib / loss_interval.h

diff --git a/net/dccp/ccids/lib/loss_interval.h b/net/dccp/ccids/lib/loss_interval.h
new file mode 100644 (file)
index 0000000..417d9d8
--- /dev/null
+++ b/net/dccp/ccids/lib/loss_interval.h
@@ -0,0 +1,61 @@
+#ifndef _DCCP_LI_HIST_
+#define _DCCP_LI_HIST_
+/*
+ *  net/dccp/ccids/lib/loss_interval.h
+ *
+ *  Copyright (c) 2005 The University of Waikato, Hamilton, New Zealand.
+ *  Copyright (c) 2005 Ian McDonald <iam4@cs.waikato.ac.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/config.h>
+#include <linux/list.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+
+#define DCCP_LI_HIST_IVAL_F_LENGTH  8
+
+struct dccp_li_hist {
+       kmem_cache_t *dccplih_slab;
+};
+
+extern struct dccp_li_hist *dccp_li_hist_new(const char *name);
+extern void dccp_li_hist_delete(struct dccp_li_hist *hist);
+
+struct dccp_li_hist_entry {
+       struct list_head dccplih_node;
+       u64              dccplih_seqno:48,
+                        dccplih_win_count:4;
+       u32              dccplih_interval;
+};
+
+static inline struct dccp_li_hist_entry *
+               dccp_li_hist_entry_new(struct dccp_li_hist *hist,
+                                      const gfp_t prio)
+{
+       return kmem_cache_alloc(hist->dccplih_slab, prio);
+}
+
+static inline void dccp_li_hist_entry_delete(struct dccp_li_hist *hist,
+                                            struct dccp_li_hist_entry *entry)
+{
+       if (entry != NULL)
+               kmem_cache_free(hist->dccplih_slab, entry);
+}
+
+extern void dccp_li_hist_purge(struct dccp_li_hist *hist,
+                              struct list_head *list);
+
+extern u32 dccp_li_hist_calc_i_mean(struct list_head *list);
+
+extern struct dccp_li_hist_entry *
+                       dccp_li_hist_interval_new(struct dccp_li_hist *hist,
+                                                 struct list_head *list,
+                                                 const u64 seq_loss,
+                                                 const u8 win_loss);
+#endif /* _DCCP_LI_HIST_ */