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/*
**********************************************************************************
*
* Project : Imagine
* File : perfos.c
* Version : $Id$
* Author : Patrick LECOANET
* Created On :
* Purpose : Implementation of perf.
*
**********************************************************************************
*/
/*
*----------------- Distribution and Copyright --------------------------
*
* This software is copyright by the CENA/DGAC/FRANCE
* All rights reserved.
*
* No part of the material protected by this copyright notice
* may be reproduced or utilized for commercial use in any form
* without written permission of the copyright owner.
*
* It may be reproduced or utilized for R&D use in Non Profit
* Organization.
*
*-----------------------------------------------------------------------
*/
/*
*----------------- Disclaimer ------------------------------------------
*
* This software and its documentation are provided "AS IS" and
* without any expressed or implied warranties whatsoever.
* No warranties as to performance, merchantability, or fitness
* for a particular purpose exist.
*
* Because of the diversity of conditions and hardware under
* which this software may be used, no warranty of fitness for
* a particular purpose is offered. The user is advised to
* test the software thoroughly before relying on it. The user
* must assume the entire risk and liability of using this
* software.
*
* In no event shall any person or organization of people be
* held responsible for any direct, indirect, consequential
* or inconsequential damages or lost profits.
*
*-----------------------------------------------------------------------
*/
/*
**********************************************************************************
*
* Incuded files.
*
**********************************************************************************
*/
#include "perfos.h"
#include "List.h"
/*
**********************************************************************************
*
* Constants.
*
**********************************************************************************
*/
static const char rcsid[] = "$Id$";
#ifdef PERFOS
static ZnList Chronos = NULL;
/*
**********************************************************************************
*
* HardwareSynchronize - Synchronise Xwindow.
*
**********************************************************************************
*/
static void
HardwareSynchronize(Display *test_display, Drawable test_window)
{
XImage *image;
/* Synchronize yourself with the drawing engine by sending a
XGetImage one pixel square. */
image = XGetImage(test_display, test_window, 0, 0, 1, 1, ~0, ZPixmap);
XDestroyImage(image);
}
/*
**********************************************************************************
*
* GetUCTime - Return machine time. This is the sum of user and system
* times for the process so far.
*
**********************************************************************************
*/
static long
GetUCTime(void)
{
struct tms time;
times(&time);
return time.tms_utime + time.tms_stime;
}
/*
**********************************************************************************
*
* GetCurrentTime - Return current time.
*
**********************************************************************************
*/
static long
GetCurrentTime(void)
{
struct timeval start;
gettimeofday(&start, NULL);
return((start.tv_sec * 100) + (start.tv_usec / 10000));
}
/*
**********************************************************************************
*
* XGetCurrentTime - return current time after Xwindow synchronize.
*
**********************************************************************************
*/
static long
XGetCurrentTime(Display *display, Drawable window)
{
HardwareSynchronize(display, window);
return(GetCurrentTime());
}
/*
**********************************************************************************
*
* XCorrectionValue - Evaluate the correction value to apply
* to counter the client-server round trip
* time.
*
**********************************************************************************
*/
static long
XCorrectionValue(Display *display, Drawable window)
{
int i;
long start, stop;
start = GetCurrentTime();
for (i = 0; i < 5; i++) {
HardwareSynchronize(display, window);
}
stop = GetCurrentTime();
return((stop - start) / 5);
}
/*
**********************************************************************************
*
* XStartChrono - Start a perf chrono with X synchronize.
*
**********************************************************************************
*/
void
XStartChrono(Chrono chrono, Display *display, Drawable window)
{
chrono->current_correction = XCorrectionValue(display, window);
chrono->current_delay = XGetCurrentTime(display, window);
}
/*
**********************************************************************************
*
* XStopChrono - Stop a perf chrono with X synchronize.
*
**********************************************************************************
*/
void
XStopChrono(Chrono chrono, Display *display, Drawable window)
{
chrono->total_delay = chrono->total_delay +
(XGetCurrentTime(display, window) -
chrono->current_delay - chrono->current_correction);
chrono->actions++;
}
/*
**********************************************************************************
*
* StartChrono - Start a perf chrono in user time.
*
**********************************************************************************
*/
void
StartChrono(Chrono chrono)
{
chrono->current_delay = GetCurrentTime();
}
/*
**********************************************************************************
*
* StopChrono - Stop a perf chrono in user time.
*
**********************************************************************************
*/
void
StopChrono(Chrono chrono)
{
chrono->total_delay = chrono->total_delay + (GetCurrentTime() - chrono->current_delay);
chrono->actions++;
}
/*
**********************************************************************************
*
* StartUCChrono - Start a perf chrono in uc time.
*
**********************************************************************************
*/
void
StartUCChrono(Chrono chrono)
{
chrono->current_delay = GetUCTime();
}
/*
**********************************************************************************
*
* StopUCChrono - Stop a perf chrono in uc time.
*
**********************************************************************************
*/
void
StopUCChrono(Chrono chrono)
{
chrono->total_delay = chrono->total_delay + (GetUCTime() - chrono->current_delay);
chrono->actions++;
}
/*
**********************************************************************************
*
* PrintChronos - Print the currently available stats on all
* chronos registered so far.
*
**********************************************************************************
*/
void
PrintChronos(void)
{
int i, cnt;
Chrono *chrs;
cnt = ZnListSize(Chronos);
chrs = (Chrono *) ZnListArray(Chronos);
for (i = 0; i < cnt; i++) {
if (chrs[i]->actions != 0) {
printf("%s : %d ms on %d times\n",
chrs[i]->message,
chrs[i]->total_delay * 10 / chrs[i]->actions,
chrs[i]->actions);
}
}
}
/*
**********************************************************************************
*
* ResetChronos - Reset all chronos registered so far.
*
**********************************************************************************
*/
void
RazChronos(void)
{
int i, cnt;
Chrono *chrs;
cnt = ZnListSize(Chronos);
chrs = (Chrono *) ZnListArray(Chronos);
for (i = 0; i < cnt; i++) {
chrs[i]->actions = 0;
chrs[i]->total_delay = 0;
}
}
/*
**********************************************************************************
*
* NewChrono - Return a new initialized chrono associated with
* message.
*
**********************************************************************************
*/
Chrono
NewChrono(char *message)
{
Chrono new;
if (!Chronos) {
Chronos = ZnListNew(8, sizeof(Chrono));
}
new = (Chrono) malloc(sizeof(ChronoRec));
new->actions = 0;
new->total_delay = 0;
new->message = message;
ZnListAdd(Chronos, &new, ZnListTail);
return new;
}
/*
**********************************************************************************
*
* FreeChrono - Free the resources of a chrono.
*
**********************************************************************************
*/
void
FreeChrono(Chrono chrono)
{
free(chrono);
ZnListDelete(Chronos, ZnListHead, &chrono);
}
#endif /* PERFOS */
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