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curl/lib/progress.c

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/*****************************************************************************
* _ _ ____ _
* Project ___| | | | _ \| |
* / __| | | | |_) | |
* | (__| |_| | _ <| |___
* \___|\___/|_| \_\_____|
*
* Copyright (C) 2000, Daniel Stenberg, <daniel@haxx.se>, et al.
*
* In order to be useful for every potential user, curl and libcurl are
* dual-licensed under the MPL and the MIT/X-derivate licenses.
*
* You may opt to use, copy, modify, merge, publish, distribute and/or sell
* copies of the Software, and permit persons to whom the Software is
* furnished to do so, under the terms of the MPL or the MIT/X-derivate
* licenses. You may pick one of these licenses.
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
* KIND, either express or implied.
*
* $Id$
*****************************************************************************/
#include "setup.h"
#include <string.h>
#if defined(WIN32) && !defined(__GNUC__) || defined(__MINGW32__)
#if defined(__MINGW32__)
#include <winsock.h>
#endif
#include <time.h>
#endif
/* 20000318 mgs
* later we use _scrsize to determine the screen width, this emx library
* function needs stdlib.h to be included */
#if defined(__EMX__)
#include <stdlib.h>
#endif
#include <curl/curl.h>
#include "urldata.h"
#include "sendf.h"
#include "progress.h"
static void time2str(char *r, int t)
{
int h = (t/3600);
int m = (t-(h*3600))/60;
int s = (t-(h*3600)-(m*60));
sprintf(r,"%2d:%02d:%02d",h,m,s);
}
/* The point of this function would be to return a string of the input data,
but never longer than 5 columns. Add suffix k, M, G when suitable... */
static char *max5data(double bytes, char *max5)
{
#define ONE_KILOBYTE 1024
#define ONE_MEGABYTE (1024*1024)
if(bytes < 100000) {
sprintf(max5, "%5d", (int)bytes);
return max5;
}
if(bytes < (9999*ONE_KILOBYTE)) {
sprintf(max5, "%4dk", (int)bytes/ONE_KILOBYTE);
return max5;
}
if(bytes < (100*ONE_MEGABYTE)) {
/* 'XX.XM' is good as long as we're less than 100 megs */
sprintf(max5, "%2.1fM", bytes/ONE_MEGABYTE);
return max5;
}
sprintf(max5, "%4dM", (int)bytes/ONE_MEGABYTE);
return max5;
}
/*
New proposed interface, 9th of February 2000:
pgrsStartNow() - sets start time
pgrsSetDownloadSize(x) - known expected download size
pgrsSetUploadSize(x) - known expected upload size
pgrsSetDownloadCounter() - amount of data currently downloaded
pgrsSetUploadCounter() - amount of data currently uploaded
pgrsUpdate() - show progress
pgrsDone() - transfer complete
*/
void Curl_pgrsDone(struct connectdata *conn)
{
struct UrlData *data = conn->data;
if(!(data->progress.flags & PGRS_HIDE)) {
data->progress.lastshow=0;
Curl_pgrsUpdate(conn); /* the final (forced) update */
if(!data->progress.callback)
/* only output if we don't use progress callback */
fprintf(data->err, "\n");
}
}
void Curl_pgrsTime(struct UrlData *data, timerid timer)
{
switch(timer) {
default:
case TIMER_NONE:
/* mistake filter */
break;
case TIMER_STARTSINGLE:
/* This is set at the start of a single fetch, there may be several
fetches within an operation, why we add all other times relative
to this one */
data->progress.t_startsingle = Curl_tvnow();
break;
case TIMER_NAMELOOKUP:
data->progress.t_nslookup += Curl_tvdiff(Curl_tvnow(),
data->progress.t_startsingle);
break;
case TIMER_CONNECT:
data->progress.t_connect += Curl_tvdiff(Curl_tvnow(),
data->progress.t_startsingle);
break;
case TIMER_PRETRANSFER:
data->progress.t_pretransfer += Curl_tvdiff(Curl_tvnow(),
data->progress.t_startsingle);
break;
case TIMER_POSTRANSFER:
/* this is the normal end-of-transfer thing */
break;
}
}
void Curl_pgrsStartNow(struct UrlData *data)
{
data->progress.speeder_c = 0; /* reset the progress meter display */
data->progress.start = Curl_tvnow();
}
void Curl_pgrsSetDownloadCounter(struct UrlData *data, double size)
{
data->progress.downloaded = size;
}
void Curl_pgrsSetUploadCounter(struct UrlData *data, double size)
{
data->progress.uploaded = size;
}
void Curl_pgrsSetDownloadSize(struct UrlData *data, double size)
{
if(size > 0) {
data->progress.size_dl = size;
data->progress.flags |= PGRS_DL_SIZE_KNOWN;
}
}
void Curl_pgrsSetUploadSize(struct UrlData *data, double size)
{
if(size > 0) {
data->progress.size_ul = size;
data->progress.flags |= PGRS_UL_SIZE_KNOWN;
}
}
/* EXAMPLE OUTPUT to follow:
% Total % Received % Xferd Average Speed Time Curr.
Dload Upload Total Current Left Speed
100 12345 100 12345 100 12345 12345 12345 12:12:12 12:12:12 12:12:12 12345
*/
int Curl_pgrsUpdate(struct connectdata *conn)
{
struct timeval now;
int result;
char max5[6][10];
double dlpercen=0;
double ulpercen=0;
double total_percen=0;
double total_transfer;
double total_expected_transfer;
struct UrlData *data = conn->data;
int nowindex = data->progress.speeder_c% CURR_TIME;
int checkindex;
int count;
char time_left[10];
char time_total[10];
char time_current[10];
double ulestimate=0;
double dlestimate=0;
double total_estimate;
if(data->progress.flags & PGRS_HIDE)
; /* We do enter this function even if we don't wanna see anything, since
this is were lots of the calculations are being made that will be used
even when not displayed! */
else if(!(data->progress.flags & PGRS_HEADERS_OUT)) {
if (!data->progress.callback) {
if(conn->resume_from)
fprintf(data->err, "** Resuming transfer from byte position %d\n",
conn->resume_from);
fprintf(data->err,
" %% Total %% Received %% Xferd Average Speed Time Curr.\n"
" Dload Upload Total Current Left Speed\n");
}
data->progress.flags |= PGRS_HEADERS_OUT; /* headers are shown */
}
now = Curl_tvnow(); /* what time is it */
/* The exact time spent so far */
data->progress.timespent = Curl_tvdiff (now, data->progress.start);
if(data->progress.lastshow == Curl_tvlong(now))
return 0; /* never update this more than once a second if the end isn't
reached */
data->progress.lastshow = now.tv_sec;
/* The average download speed this far */
data->progress.dlspeed = data->progress.downloaded/(data->progress.timespent!=0.0?data->progress.timespent:1.0);
/* The average upload speed this far */
data->progress.ulspeed = data->progress.uploaded/(data->progress.timespent!=0.0?data->progress.timespent:1.0);
/* Let's do the "current speed" thing, which should use the fastest
of the dl/ul speeds */
data->progress.speeder[ nowindex ] =
data->progress.downloaded>data->progress.uploaded?
data->progress.downloaded:data->progress.uploaded;
data->progress.speeder_c++; /* increase */
count = ((data->progress.speeder_c>=CURR_TIME)?
CURR_TIME:data->progress.speeder_c) - 1;
checkindex = (data->progress.speeder_c>=CURR_TIME)?
data->progress.speeder_c%CURR_TIME:0;
/* find out the average speed the last CURR_TIME seconds */
data->progress.current_speed =
(data->progress.speeder[nowindex]-
data->progress.speeder[checkindex])/(count?count:1);
if(data->progress.flags & PGRS_HIDE)
return 0;
else if(data->fprogress) {
result= data->fprogress(data->progress_client,
data->progress.size_dl,
data->progress.downloaded,
data->progress.size_ul,
data->progress.uploaded);
if(result)
failf(data, "Callback aborted");
return result;
}
/* Figure out the estimated time of arrival for the upload */
if((data->progress.flags & PGRS_UL_SIZE_KNOWN) && data->progress.ulspeed){
ulestimate = data->progress.size_ul / data->progress.ulspeed;
ulpercen = (data->progress.uploaded / data->progress.size_ul)*100;
}
/* ... and the download */
if((data->progress.flags & PGRS_DL_SIZE_KNOWN) && data->progress.dlspeed) {
dlestimate = data->progress.size_dl / data->progress.dlspeed;
dlpercen = (data->progress.downloaded / data->progress.size_dl)*100;
}
/* Now figure out which of them that is slower and use for the for
total estimate! */
total_estimate = ulestimate>dlestimate?ulestimate:dlestimate;
/* If we have a total estimate, we can display that and the expected
time left */
if(total_estimate) {
time2str(time_left, total_estimate-(int) data->progress.timespent);
time2str(time_total, total_estimate);
}
else {
/* otherwise we blank those times */
strcpy(time_left, "--:--:--");
strcpy(time_total, "--:--:--");
}
/* The time spent so far is always known */
time2str(time_current, data->progress.timespent);
/* Get the total amount of data expected to get transfered */
total_expected_transfer =
(data->progress.flags & PGRS_UL_SIZE_KNOWN?
data->progress.size_ul:data->progress.uploaded)+
(data->progress.flags & PGRS_DL_SIZE_KNOWN?
data->progress.size_dl:data->progress.downloaded);
/* We have transfered this much so far */
total_transfer = data->progress.downloaded + data->progress.uploaded;
/* Get the percentage of data transfered so far */
if(total_expected_transfer)
total_percen=(double)(total_transfer/total_expected_transfer)*100;
fprintf(data->err,
"\r%3d %s %3d %s %3d %s %s %s %s %s %s %s",
(int)total_percen, /* total % */
max5data(total_expected_transfer, max5[2]), /* total size */
(int)dlpercen, /* rcvd % */
max5data(data->progress.downloaded, max5[0]), /* rcvd size */
(int)ulpercen, /* xfer % */
max5data(data->progress.uploaded, max5[1]), /* xfer size */
max5data(data->progress.dlspeed, max5[3]), /* avrg dl speed */
max5data(data->progress.ulspeed, max5[4]), /* avrg ul speed */
time_total, /* total time */
time_current, /* current time */
time_left, /* time left */
max5data(data->progress.current_speed, max5[5]) /* current speed */
);
return 0;
}
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