4.3BSD-Reno/src/sys/netiso/tp_meas.c

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		Copyright IBM Corporation 1987

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/*
 * ARGO Project, Computer Sciences Dept., University of Wisconsin - Madison
 */
/*
 * $Header: tp_meas.c,v 5.2 88/11/18 17:28:04 nhall Exp $
 * $Source: /usr/argo/sys/netiso/RCS/tp_meas.c,v $
 *	@(#)tp_meas.c	7.3 (Berkeley) 8/29/89 *
 * 
 * tp_meas.c : create a performance measurement event
 * in the circular buffer tp_Meas[]
 */

#ifndef lint
static char *rcsid = "$Header: tp_meas.c,v 5.2 88/11/18 17:28:04 nhall Exp $";
#endif lint

#include "types.h"
#include "time.h"
#include "argo_debug.h"
#include "tp_meas.h"

extern struct timeval time;

#ifdef TP_PERF_MEAS
int		tp_Measn = 0;
struct tp_Meas tp_Meas[TPMEASN];

/*
 * NAME:	 tpmeas()
 *
 * CALLED FROM: tp_emit(), tp_soisdisconecting(), tp_soisdisconnected()
 *	tp0_stash(), tp_stash(), tp_send(), tp_goodack(), tp_usrreq()
 *
 * FUNCTION and ARGUMENTS:
 *  stashes a performance-measurement event for the given reference (ref)
 *  (kind) tells which kind of event, timev is the time to be stored
 *  with this event, (seq), (win), and (size) are integers that usually
 *  refer to the sequence number, window number (on send) and 
 *  size of tpdu or window.
 *
 * RETURNS:		Nada
 *
 * SIDE EFFECTS:	
 *
 * NOTES:			
 */
void
Tpmeas(ref, kind, timev, seq, win, size)
	u_int 	ref;
	u_int	kind;
	struct 	timeval *timev;
	u_int	seq, win, size;
{
	register struct tp_Meas *tpm;
	static int mseq;

	tpm = &tp_Meas[tp_Measn++];
	tp_Measn %= TPMEASN;

	tpm->tpm_kind = kind;
	tpm->tpm_tseq = mseq++;
	tpm->tpm_ref = ref;
	if(kind == TPtime_from_ll)
		bcopy((caddr_t)timev, (caddr_t)&tpm->tpm_time, sizeof(struct timeval));
	else
		bcopy( (caddr_t)&time, 
			(caddr_t)&tpm->tpm_time, sizeof(struct timeval) );
	tpm->tpm_seq = seq;
	tpm->tpm_window = win;
	tpm->tpm_size = size;
}

#endif TP_PERF_MEAS