sys/netiso/tp_meas.c

   1 /*      $NetBSD: tp_meas.c,v 1.15 2009/03/18 17:06:53 cegger Exp $      */
   2
   3 /*-
   4  * Copyright (c) 1991, 1993
   5  *      The Regents of the University of California.  All rights reserved.
   6  *
   7  * Redistribution and use in source and binary forms, with or without
   8  * modification, are permitted provided that the following conditions
   9  * are met:
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  * 2. Redistributions in binary form must reproduce the above copyright
  13  *    notice, this list of conditions and the following disclaimer in the
  14  *    documentation and/or other materials provided with the distribution.
  15  * 3. Neither the name of the University nor the names of its contributors
  16  *    may be used to endorse or promote products derived from this software
  17  *    without specific prior written permission.
  18  *
  19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
  20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
  23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  29  * SUCH DAMAGE.
  30  *
  31  *      @(#)tp_meas.c   8.1 (Berkeley) 6/10/93
  32  */
  33
  34 /***********************************************************
  35                 Copyright IBM Corporation 1987
  36
  37                       All Rights Reserved
  38
  39 Permission to use, copy, modify, and distribute this software and its
  40 documentation for any purpose and without fee is hereby granted,
  41 provided that the above copyright notice appear in all copies and that
  42 both that copyright notice and this permission notice appear in
  43 supporting documentation, and that the name of IBM not be
  44 used in advertising or publicity pertaining to distribution of the
  45 software without specific, written prior permission.
  46
  47 IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
  48 ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
  49 IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
  50 ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
  51 WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
  52 ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
  53 SOFTWARE.
  54
  55 ******************************************************************/
  56
  57 /*
  58  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
  59  */
  60 /*
  61  * tp_meas.c : create a performance measurement event
  62  * in the circular buffer tp_Meas[]
  63  */
  64
  65 #include <sys/cdefs.h>
  66 __KERNEL_RCSID(0, "$NetBSD: tp_meas.c,v 1.15 2009/03/18 17:06:53 cegger Exp $");
  67
  68 #include <sys/types.h>
  69 #include <sys/time.h>
  70
  71 #include <netiso/argo_debug.h>
  72 #include <netiso/tp_meas.h>
  73
  74 #ifdef TP_PERF_MEAS
  75 int             tp_Measn = 0;
  76 struct tp_Meas  tp_Meas[TPMEASN];
  77
  78 /*
  79  * NAME:         tpmeas()
  80  *
  81  * CALLED FROM: tp_emit(), tp_soisdisconecting(), tp_soisdisconnected()
  82  *      tp0_stash(), tp_stash(), tp_send(), tp_goodack(), tp_usrreq()
  83  *
  84  * FUNCTION and ARGUMENTS:
  85  *  stashes a performance-measurement event for the given reference (ref)
  86  *  (kind) tells which kind of event, timev is the time to be stored
  87  *  with this event, (seq), (win), and (size) are integers that usually
  88  *  refer to the sequence number, window number (on send) and
  89  *  size of tpdu or window.
  90  *
  91  * RETURNS:             Nada
  92  *
  93  * SIDE EFFECTS:
  94  *
  95  * NOTES:
  96  */
  97 void
  98 Tpmeas(u_int ref, u_int kind, struct timeval *timev, u_int seq, u_int win,
  99         u_int size)
 100 {
 101         struct tp_Meas *tpm;
 102         static int      mseq;
 103
 104         tpm = &tp_Meas[tp_Measn++];
 105         tp_Measn %= TPMEASN;
 106
 107         tpm->tpm_kind = kind;
 108         tpm->tpm_tseq = mseq++;
 109         tpm->tpm_ref = ref;
 110         if (kind == TPtime_from_ll)
 111                 memcpy((void *) & tpm->tpm_time, (void *) timev, sizeof(struct timeval));
 112         else
 113                 getmicrotime(& tpm->tpm_time);
 114         tpm->tpm_seq = seq;
 115         tpm->tpm_window = win;
 116         tpm->tpm_size = size;
 117 }
 118
 119 #endif                          /* TP_PERF_MEAS */