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Annotation of 43BSDReno/sys/netiso/tp_meas.c, revision 1.1

1.1     ! root        1: /***********************************************************
        !             2:                Copyright IBM Corporation 1987
        !             3: 
        !             4:                       All Rights Reserved
        !             5: 
        !             6: Permission to use, copy, modify, and distribute this software and its 
        !             7: documentation for any purpose and without fee is hereby granted, 
        !             8: provided that the above copyright notice appear in all copies and that
        !             9: both that copyright notice and this permission notice appear in 
        !            10: supporting documentation, and that the name of IBM not be
        !            11: used in advertising or publicity pertaining to distribution of the
        !            12: software without specific, written prior permission.  
        !            13: 
        !            14: IBM DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, INCLUDING
        !            15: ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL
        !            16: IBM BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR
        !            17: ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
        !            18: WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
        !            19: ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS
        !            20: SOFTWARE.
        !            21: 
        !            22: ******************************************************************/
        !            23: 
        !            24: /*
        !            25:  * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
        !            26:  */
        !            27: /*
        !            28:  * $Header: tp_meas.c,v 5.2 88/11/18 17:28:04 nhall Exp $
        !            29:  * $Source: /usr/argo/sys/netiso/RCS/tp_meas.c,v $
        !            30:  *     @(#)tp_meas.c   7.3 (Berkeley) 8/29/89 *
        !            31:  * 
        !            32:  * tp_meas.c : create a performance measurement event
        !            33:  * in the circular buffer tp_Meas[]
        !            34:  */
        !            35: 
        !            36: #ifndef lint
        !            37: static char *rcsid = "$Header: tp_meas.c,v 5.2 88/11/18 17:28:04 nhall Exp $";
        !            38: #endif lint
        !            39: 
        !            40: #include "types.h"
        !            41: #include "time.h"
        !            42: #include "argo_debug.h"
        !            43: #include "tp_meas.h"
        !            44: 
        !            45: extern struct timeval time;
        !            46: 
        !            47: #ifdef TP_PERF_MEAS
        !            48: int            tp_Measn = 0;
        !            49: struct tp_Meas tp_Meas[TPMEASN];
        !            50: 
        !            51: /*
        !            52:  * NAME:        tpmeas()
        !            53:  *
        !            54:  * CALLED FROM: tp_emit(), tp_soisdisconecting(), tp_soisdisconnected()
        !            55:  *     tp0_stash(), tp_stash(), tp_send(), tp_goodack(), tp_usrreq()
        !            56:  *
        !            57:  * FUNCTION and ARGUMENTS:
        !            58:  *  stashes a performance-measurement event for the given reference (ref)
        !            59:  *  (kind) tells which kind of event, timev is the time to be stored
        !            60:  *  with this event, (seq), (win), and (size) are integers that usually
        !            61:  *  refer to the sequence number, window number (on send) and 
        !            62:  *  size of tpdu or window.
        !            63:  *
        !            64:  * RETURNS:            Nada
        !            65:  *
        !            66:  * SIDE EFFECTS:       
        !            67:  *
        !            68:  * NOTES:                      
        !            69:  */
        !            70: void
        !            71: Tpmeas(ref, kind, timev, seq, win, size)
        !            72:        u_int   ref;
        !            73:        u_int   kind;
        !            74:        struct  timeval *timev;
        !            75:        u_int   seq, win, size;
        !            76: {
        !            77:        register struct tp_Meas *tpm;
        !            78:        static int mseq;
        !            79: 
        !            80:        tpm = &tp_Meas[tp_Measn++];
        !            81:        tp_Measn %= TPMEASN;
        !            82: 
        !            83:        tpm->tpm_kind = kind;
        !            84:        tpm->tpm_tseq = mseq++;
        !            85:        tpm->tpm_ref = ref;
        !            86:        if(kind == TPtime_from_ll)
        !            87:                bcopy((caddr_t)timev, (caddr_t)&tpm->tpm_time, sizeof(struct timeval));
        !            88:        else
        !            89:                bcopy( (caddr_t)&time, 
        !            90:                        (caddr_t)&tpm->tpm_time, sizeof(struct timeval) );
        !            91:        tpm->tpm_seq = seq;
        !            92:        tpm->tpm_window = win;
        !            93:        tpm->tpm_size = size;
        !            94: }
        !            95: 
        !            96: #endif TP_PERF_MEAS

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