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Annotation of kernel/bsd/netiso/tp_meas.c, revision 1.1

1.1     ! root        1: /*
        !             2:  * Copyright (c) 1999 Apple Computer, Inc. All rights reserved.
        !             3:  *
        !             4:  * @APPLE_LICENSE_HEADER_START@
        !             5:  * 
        !             6:  * Portions Copyright (c) 1999 Apple Computer, Inc.  All Rights
        !             7:  * Reserved.  This file contains Original Code and/or Modifications of
        !             8:  * Original Code as defined in and that are subject to the Apple Public
        !             9:  * Source License Version 1.1 (the "License").  You may not use this file
        !            10:  * except in compliance with the License.  Please obtain a copy of the
        !            11:  * License at http://www.apple.com/publicsource and read it before using
        !            12:  * this file.
        !            13:  * 
        !            14:  * The Original Code and all software distributed under the License are
        !            15:  * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER
        !            16:  * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
        !            17:  * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
        !            18:  * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT.  Please see the
        !            19:  * License for the specific language governing rights and limitations
        !            20:  * under the License.
        !            21:  * 
        !            22:  * @APPLE_LICENSE_HEADER_END@
        !            23:  */
        !            24: 
        !            25: /*-
        !            26:  * Copyright (c) 1991, 1993
        !            27:  *     The Regents of the University of California.  All rights reserved.
        !            28:  *
        !            29:  * Redistribution and use in source and binary forms, with or without
        !            30:  * modification, are permitted provided that the following conditions
        !            31:  * are met:
        !            32:  * 1. Redistributions of source code must retain the above copyright
        !            33:  *    notice, this list of conditions and the following disclaimer.
        !            34:  * 2. Redistributions in binary form must reproduce the above copyright
        !            35:  *    notice, this list of conditions and the following disclaimer in the
        !            36:  *    documentation and/or other materials provided with the distribution.
        !            37:  * 3. All advertising materials mentioning features or use of this software
        !            38:  *    must display the following acknowledgement:
        !            39:  *     This product includes software developed by the University of
        !            40:  *     California, Berkeley and its contributors.
        !            41:  * 4. Neither the name of the University nor the names of its contributors
        !            42:  *    may be used to endorse or promote products derived from this software
        !            43:  *    without specific prior written permission.
        !            44:  *
        !            45:  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
        !            46:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
        !            47:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
        !            48:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
        !            49:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
        !            50:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
        !            51:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
        !            52:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
        !            53:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
        !            54:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
        !            55:  * SUCH DAMAGE.
        !            56:  *
        !            57:  *     @(#)tp_meas.c   8.1 (Berkeley) 6/10/93
        !            58:  */
        !            59: 
        !            60: /***********************************************************
        !            61:                Copyright IBM Corporation 1987
        !            62: 
        !            63:                       All Rights Reserved
        !            64: 
        !            65: Permission to use, copy, modify, and distribute this software and its 
        !            66: documentation for any purpose and without fee is hereby granted, 
        !            67: provided that the above copyright notice appear in all copies and that
        !            68: both that copyright notice and this permission notice appear in 
        !            69: supporting documentation, and that the name of IBM not be
        !            70: used in advertising or publicity pertaining to distribution of the
        !            71: software without specific, written prior permission.  
        !            72: 
        !            73: IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
        !            74: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
        !            75: IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
        !            76: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
        !            77: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
        !            78: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
        !            79: SOFTWARE.
        !            80: 
        !            81: ******************************************************************/
        !            82: 
        !            83: /*
        !            84:  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
        !            85:  */
        !            86: /*
        !            87:  * tp_meas.c : create a performance measurement event
        !            88:  * in the circular buffer tp_Meas[]
        !            89:  */
        !            90: 
        !            91: #include <sys/types.h>
        !            92: #include <sys/time.h>
        !            93: 
        !            94: #include <netiso/argo_debug.h>
        !            95: #include <netiso/tp_meas.h>
        !            96: 
        !            97: extern struct timeval time;
        !            98: 
        !            99: #ifdef TP_PERF_MEAS
        !           100: int            tp_Measn = 0;
        !           101: struct tp_Meas tp_Meas[TPMEASN];
        !           102: 
        !           103: /*
        !           104:  * NAME:        tpmeas()
        !           105:  *
        !           106:  * CALLED FROM: tp_emit(), tp_soisdisconecting(), tp_soisdisconnected()
        !           107:  *     tp0_stash(), tp_stash(), tp_send(), tp_goodack(), tp_usrreq()
        !           108:  *
        !           109:  * FUNCTION and ARGUMENTS:
        !           110:  *  stashes a performance-measurement event for the given reference (ref)
        !           111:  *  (kind) tells which kind of event, timev is the time to be stored
        !           112:  *  with this event, (seq), (win), and (size) are integers that usually
        !           113:  *  refer to the sequence number, window number (on send) and 
        !           114:  *  size of tpdu or window.
        !           115:  *
        !           116:  * RETURNS:            Nada
        !           117:  *
        !           118:  * SIDE EFFECTS:       
        !           119:  *
        !           120:  * NOTES:                      
        !           121:  */
        !           122: void
        !           123: Tpmeas(ref, kind, timev, seq, win, size)
        !           124:        u_int   ref;
        !           125:        u_int   kind;
        !           126:        struct  timeval *timev;
        !           127:        u_int   seq, win, size;
        !           128: {
        !           129:        register struct tp_Meas *tpm;
        !           130:        static int mseq;
        !           131: 
        !           132:        tpm = &tp_Meas[tp_Measn++];
        !           133:        tp_Measn %= TPMEASN;
        !           134: 
        !           135:        tpm->tpm_kind = kind;
        !           136:        tpm->tpm_tseq = mseq++;
        !           137:        tpm->tpm_ref = ref;
        !           138:        if(kind == TPtime_from_ll)
        !           139:                bcopy((caddr_t)timev, (caddr_t)&tpm->tpm_time, sizeof(struct timeval));
        !           140:        else
        !           141:                bcopy( (caddr_t)&time, 
        !           142:                        (caddr_t)&tpm->tpm_time, sizeof(struct timeval) );
        !           143:        tpm->tpm_seq = seq;
        !           144:        tpm->tpm_window = win;
        !           145:        tpm->tpm_size = size;
        !           146: }
        !           147: 
        !           148: #endif /* TP_PERF_MEAS */

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