427 строки
15 KiB
C
427 строки
15 KiB
C
/***************************************************************************
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* _ _ ____ _
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* Project ___| | | | _ \| |
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* / __| | | | |_) | |
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* | (__| |_| | _ <| |___
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* \___|\___/|_| \_\_____|
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*
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* Copyright (C) 1998 - 2004, Daniel Stenberg, <daniel@haxx.se>, et al.
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*
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* This software is licensed as described in the file COPYING, which
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* you should have received as part of this distribution. The terms
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* are also available at http://curl.haxx.se/docs/copyright.html.
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*
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* You may opt to use, copy, modify, merge, publish, distribute and/or sell
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* copies of the Software, and permit persons to whom the Software is
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* furnished to do so, under the terms of the COPYING file.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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* $Id$
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***************************************************************************/
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#include "setup.h"
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#include <string.h>
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#include <time.h>
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#if defined(__EMX__)
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#include <stdlib.h>
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#endif
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#include <curl/curl.h>
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#include "urldata.h"
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#include "sendf.h"
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#include "progress.h"
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#define _MPRINTF_REPLACE /* use our functions only */
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#include <curl/mprintf.h>
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/* Provide a string that is 2 + 1 + 2 + 1 + 2 = 8 letters long (plus the zero
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byte) */
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static void time2str(char *r, long t)
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{
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long h;
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if(!t) {
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strcpy(r, "--:--:--");
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return;
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}
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h = (t/3600);
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if(h <= 99) {
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long m = (t-(h*3600))/60;
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long s = (t-(h*3600)-(m*60));
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snprintf(r, 9, "%2ld:%02ld:%02ld",h,m,s);
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}
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else {
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/* this equals to more than 99 hours, switch to a more suitable output
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format to fit within the limits. */
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if(h/24 <= 999)
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snprintf(r, 9, "%3ldd %02ldh", h/24, h-(h/24)*24);
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else
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snprintf(r, 9, "%7ldd", h/24);
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}
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}
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/* The point of this function would be to return a string of the input data,
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but never longer than 5 columns (+ one zero byte).
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Add suffix k, M, G when suitable... */
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static char *max5data(curl_off_t bytes, char *max5)
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{
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#define ONE_KILOBYTE 1024
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#define ONE_MEGABYTE (1024* ONE_KILOBYTE)
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#define ONE_GIGABYTE (1024* ONE_MEGABYTE)
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#define ONE_TERRABYTE ((curl_off_t)1024* ONE_GIGABYTE)
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#define ONE_PETABYTE ((curl_off_t)1024* ONE_TERRABYTE)
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if(bytes < 100000) {
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snprintf(max5, 6, "%5" FORMAT_OFF_T, bytes);
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}
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else if(bytes < (10000*ONE_KILOBYTE)) {
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snprintf(max5, 6, "%4" FORMAT_OFF_T "k", (curl_off_t)(bytes/ONE_KILOBYTE));
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}
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else if(bytes < (100*ONE_MEGABYTE)) {
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/* 'XX.XM' is good as long as we're less than 100 megs */
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snprintf(max5, 6, "%2d.%0dM",
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(int)(bytes/ONE_MEGABYTE),
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(int)(bytes%ONE_MEGABYTE)/(ONE_MEGABYTE/10) );
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}
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#if SIZEOF_CURL_OFF_T > 4
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else if(bytes < ( (curl_off_t)10000*ONE_MEGABYTE))
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/* 'XXXXM' is good until we're at 10000MB or above */
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snprintf(max5, 6, "%4" FORMAT_OFF_T "M", (curl_off_t)(bytes/ONE_MEGABYTE));
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else if(bytes < (curl_off_t)100*ONE_GIGABYTE)
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/* 10000 MB - 100 GB, we show it as XX.XG */
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snprintf(max5, 6, "%2d.%0dG",
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(int)(bytes/ONE_GIGABYTE),
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(int)(bytes%ONE_GIGABYTE)/(ONE_GIGABYTE/10) );
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else if(bytes < (curl_off_t)10000 * ONE_GIGABYTE)
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/* up to 10000GB, display without decimal: XXXXG */
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snprintf(max5, 6, "%4dG", (int)(bytes/ONE_GIGABYTE));
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else if(bytes < (curl_off_t)10000 * ONE_TERRABYTE)
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/* up to 10000TB, display without decimal: XXXXT */
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snprintf(max5, 6, "%4dT", (int)(bytes/ONE_TERRABYTE));
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else {
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/* up to 10000PB, display without decimal: XXXXP */
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snprintf(max5, 6, "%4dP", (int)(bytes/ONE_PETABYTE));
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/* 16384 petabytes (16 exabytes) is maximum a 64 bit number can hold,
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but this type is signed so 8192PB will be max.*/
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}
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#else
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else
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snprintf(max5, 6, "%4" FORMAT_OFF_T "M", (curl_off_t)(bytes/ONE_MEGABYTE));
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#endif
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return max5;
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}
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/*
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New proposed interface, 9th of February 2000:
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pgrsStartNow() - sets start time
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pgrsSetDownloadSize(x) - known expected download size
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pgrsSetUploadSize(x) - known expected upload size
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pgrsSetDownloadCounter() - amount of data currently downloaded
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pgrsSetUploadCounter() - amount of data currently uploaded
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pgrsUpdate() - show progress
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pgrsDone() - transfer complete
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*/
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void Curl_pgrsDone(struct connectdata *conn)
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{
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struct SessionHandle *data = conn->data;
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data->progress.lastshow=0;
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Curl_pgrsUpdate(conn); /* the final (forced) update */
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if(!(data->progress.flags & PGRS_HIDE) &&
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!data->progress.callback)
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/* only output if we don't use a progress callback and we're not hidden */
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fprintf(data->set.err, "\n");
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}
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/* reset all times except redirect */
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void Curl_pgrsResetTimes(struct SessionHandle *data)
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{
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data->progress.t_nslookup = 0.0;
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data->progress.t_connect = 0.0;
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data->progress.t_pretransfer = 0.0;
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data->progress.t_starttransfer = 0.0;
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}
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void Curl_pgrsTime(struct SessionHandle *data, timerid timer)
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{
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switch(timer) {
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default:
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case TIMER_NONE:
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/* mistake filter */
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break;
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case TIMER_STARTSINGLE:
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/* This is set at the start of a single fetch */
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data->progress.t_startsingle = Curl_tvnow();
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break;
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case TIMER_NAMELOOKUP:
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data->progress.t_nslookup =
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Curl_tvdiff_secs(Curl_tvnow(), data->progress.t_startsingle);
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break;
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case TIMER_CONNECT:
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data->progress.t_connect =
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Curl_tvdiff_secs(Curl_tvnow(), data->progress.t_startsingle);
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break;
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case TIMER_PRETRANSFER:
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data->progress.t_pretransfer =
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Curl_tvdiff_secs(Curl_tvnow(), data->progress.t_startsingle);
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break;
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case TIMER_STARTTRANSFER:
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data->progress.t_starttransfer =
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Curl_tvdiff_secs(Curl_tvnow(), data->progress.t_startsingle);
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break;
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case TIMER_POSTRANSFER:
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/* this is the normal end-of-transfer thing */
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break;
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case TIMER_REDIRECT:
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data->progress.t_redirect =
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Curl_tvdiff_secs(Curl_tvnow(), data->progress.start);
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break;
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}
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}
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void Curl_pgrsStartNow(struct SessionHandle *data)
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{
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data->progress.speeder_c = 0; /* reset the progress meter display */
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data->progress.start = Curl_tvnow();
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}
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void Curl_pgrsSetDownloadCounter(struct SessionHandle *data, curl_off_t size)
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{
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data->progress.downloaded = size;
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}
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void Curl_pgrsSetUploadCounter(struct SessionHandle *data, curl_off_t size)
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{
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data->progress.uploaded = size;
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}
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void Curl_pgrsSetDownloadSize(struct SessionHandle *data, curl_off_t size)
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{
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data->progress.size_dl = size;
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if(size > 0)
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data->progress.flags |= PGRS_DL_SIZE_KNOWN;
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else
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data->progress.flags &= ~PGRS_DL_SIZE_KNOWN;
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}
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void Curl_pgrsSetUploadSize(struct SessionHandle *data, curl_off_t size)
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{
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data->progress.size_ul = size;
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if(size > 0)
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data->progress.flags |= PGRS_UL_SIZE_KNOWN;
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else
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data->progress.flags &= ~PGRS_UL_SIZE_KNOWN;
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}
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int Curl_pgrsUpdate(struct connectdata *conn)
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{
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struct timeval now;
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int result;
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char max5[6][10];
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int dlpercen=0;
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int ulpercen=0;
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int total_percen=0;
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curl_off_t total_transfer;
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curl_off_t total_expected_transfer;
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long timespent;
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struct SessionHandle *data = conn->data;
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int nowindex = data->progress.speeder_c% CURR_TIME;
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int checkindex;
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int countindex; /* amount of seconds stored in the speeder array */
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char time_left[10];
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char time_total[10];
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char time_spent[10];
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long ulestimate=0;
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long dlestimate=0;
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long total_estimate;
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if(data->progress.flags & PGRS_HIDE)
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; /* We do enter this function even if we don't wanna see anything, since
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this is were lots of the calculations are being made that will be used
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even when not displayed! */
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else if(!(data->progress.flags & PGRS_HEADERS_OUT)) {
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if (!data->progress.callback) {
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if(conn->resume_from)
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fprintf(data->set.err,
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"** Resuming transfer from byte position %" FORMAT_OFF_T
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"\n",
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conn->resume_from);
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fprintf(data->set.err,
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" %% Total %% Received %% Xferd Average Speed Time Time Time Current\n"
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" Dload Upload Total Spent Left Speed\n");
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}
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data->progress.flags |= PGRS_HEADERS_OUT; /* headers are shown */
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}
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now = Curl_tvnow(); /* what time is it */
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/* The time spent so far (from the start) */
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data->progress.timespent = Curl_tvdiff_secs(now, data->progress.start);
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timespent = (long)data->progress.timespent;
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/* The average download speed this far */
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data->progress.dlspeed = (curl_off_t)
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((double)data->progress.downloaded/
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(data->progress.timespent>0?data->progress.timespent:1));
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/* The average upload speed this far */
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data->progress.ulspeed = (curl_off_t)
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((double)data->progress.uploaded/
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(data->progress.timespent>0?data->progress.timespent:1));
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if(data->progress.lastshow == Curl_tvlong(now))
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return 0; /* never update this more than once a second if the end isn't
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reached */
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data->progress.lastshow = now.tv_sec;
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/* Let's do the "current speed" thing, which should use the fastest
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of the dl/ul speeds. Store the fasted speed at entry 'nowindex'. */
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data->progress.speeder[ nowindex ] =
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data->progress.downloaded>data->progress.uploaded?
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data->progress.downloaded:data->progress.uploaded;
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/* remember the exact time for this moment */
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data->progress.speeder_time [ nowindex ] = now;
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/* advance our speeder_c counter, which is increased every time we get
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here and we expect it to never wrap as 2^32 is a lot of seconds! */
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data->progress.speeder_c++;
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/* figure out how many index entries of data we have stored in our speeder
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array. With N_ENTRIES filled in, we have about N_ENTRIES-1 seconds of
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transfer. Imagine, after one second we have filled in two entries,
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after two seconds we've filled in three entries etc. */
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countindex = ((data->progress.speeder_c>=CURR_TIME)?
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CURR_TIME:data->progress.speeder_c) - 1;
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/* first of all, we don't do this if there's no counted seconds yet */
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if(countindex) {
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long span_ms;
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/* Get the index position to compare with the 'nowindex' position.
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Get the oldest entry possible. While we have less than CURR_TIME
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entries, the first entry will remain the oldest. */
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checkindex = (data->progress.speeder_c>=CURR_TIME)?
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data->progress.speeder_c%CURR_TIME:0;
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/* Figure out the exact time for the time span */
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span_ms = Curl_tvdiff(now,
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data->progress.speeder_time[checkindex]);
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if(0 == span_ms)
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span_ms=1; /* at least one millisecond MUST have passed */
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/* Calculate the average speed the last 'span_ms' milliseconds */
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{
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curl_off_t amount = data->progress.speeder[nowindex]-
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data->progress.speeder[checkindex];
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if(amount > 4294967 /* 0xffffffff/1000 */)
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/* the 'amount' value is bigger than would fit in 32 bits if
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multiplied with 1000, so we use the double math for this */
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data->progress.current_speed = (curl_off_t)
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((double)amount/((double)span_ms/1000.0));
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else
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/* the 'amount' value is small enough to fit within 32 bits even
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when multiplied with 1000 */
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data->progress.current_speed = amount*1000/span_ms;
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}
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}
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else
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/* the first second we use the main average */
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data->progress.current_speed =
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(data->progress.ulspeed>data->progress.dlspeed)?
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data->progress.ulspeed:data->progress.dlspeed;
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if(data->progress.flags & PGRS_HIDE)
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return 0;
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else if(data->set.fprogress) {
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/* There's a callback set, so we call that instead of writing
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anything ourselves. This really is the way to go. */
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result= data->set.fprogress(data->set.progress_client,
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(double)data->progress.size_dl,
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(double)data->progress.downloaded,
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(double)data->progress.size_ul,
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(double)data->progress.uploaded);
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if(result)
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failf(data, "Callback aborted");
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return result;
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}
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/* Figure out the estimated time of arrival for the upload */
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if((data->progress.flags & PGRS_UL_SIZE_KNOWN) &&
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(data->progress.ulspeed>0) &&
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(data->progress.size_ul > 100) ) {
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ulestimate = (long)(data->progress.size_ul / data->progress.ulspeed);
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ulpercen = (int)(100*(data->progress.uploaded/100) /
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(data->progress.size_ul/100) );
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}
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/* ... and the download */
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if((data->progress.flags & PGRS_DL_SIZE_KNOWN) &&
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(data->progress.dlspeed>0) &&
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(data->progress.size_dl>100)) {
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dlestimate = (long)(data->progress.size_dl / data->progress.dlspeed);
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dlpercen = (int)(100*(data->progress.downloaded/100) /
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(data->progress.size_dl/100));
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}
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/* Now figure out which of them that is slower and use for the for
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total estimate! */
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total_estimate = ulestimate>dlestimate?ulestimate:dlestimate;
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/* create the three time strings */
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time2str(time_left, total_estimate > 0?(total_estimate - timespent):0);
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time2str(time_total, total_estimate);
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time2str(time_spent, timespent);
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/* Get the total amount of data expected to get transfered */
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total_expected_transfer =
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(data->progress.flags & PGRS_UL_SIZE_KNOWN?
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data->progress.size_ul:data->progress.uploaded)+
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(data->progress.flags & PGRS_DL_SIZE_KNOWN?
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data->progress.size_dl:data->progress.downloaded);
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/* We have transfered this much so far */
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total_transfer = data->progress.downloaded + data->progress.uploaded;
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/* Get the percentage of data transfered so far */
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if(total_expected_transfer > 100)
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total_percen=(int)(100*(total_transfer/100) /
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(total_expected_transfer/100) );
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fprintf(data->set.err,
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"\r%3d %s %3d %s %3d %s %s %s %s %s %s %s",
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total_percen, /* 3 letters */ /* total % */
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max5data(total_expected_transfer, max5[2]), /* total size */
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dlpercen, /* 3 letters */ /* rcvd % */
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max5data(data->progress.downloaded, max5[0]), /* rcvd size */
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ulpercen, /* 3 letters */ /* xfer % */
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max5data(data->progress.uploaded, max5[1]), /* xfer size */
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max5data(data->progress.dlspeed, max5[3]), /* avrg dl speed */
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max5data(data->progress.ulspeed, max5[4]), /* avrg ul speed */
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time_total, /* 8 letters */ /* total time */
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time_spent, /* 8 letters */ /* time spent */
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time_left, /* 8 letters */ /* time left */
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max5data(data->progress.current_speed, max5[5]) /* current speed */
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);
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/* we flush the output stream to make it appear as soon as possible */
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fflush(data->set.err);
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return 0;
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}
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