Source file `stats.ml`

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(*
 * Copyright (c) 2010-2013 Anil Madhavapeddy <anil@recoil.org>
 * Copyright (c) 2014-2015 Citrix Inc
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 *)

open Mirage_net

(* XXX: should move to mirage-net (V1.Stats) *)

let create () = { rx_pkts=0l; rx_bytes=0L; tx_pkts=0l; tx_bytes=0L }

let rx t size =
  t.rx_pkts <- Int32.succ t.rx_pkts;
  t.rx_bytes <- Int64.add t.rx_bytes size

let tx t size =
  t.tx_pkts <- Int32.succ t.tx_pkts;
  t.tx_bytes <- Int64.add t.tx_bytes size

let reset t =
  t.rx_bytes <- 0L;
  t.rx_pkts  <- 0l;
  t.tx_bytes <- 0L;
  t.tx_pkts  <- 0l