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/*
* downloadprog.c
*
* Copyright (c) 2002-2006 by Judd Vinet <jvinet@zeroflux.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
* USA.
*/
#include "config.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/time.h>
#include <math.h>
#include <alpm.h>
/* pacman */
#include "downloadprog.h"
#include "util.h"
#include "log.h"
#include "conf.h"
/* progress bar */
static float rate_last;
static int xfered_last;
static struct timeval initial_time;
/* pacman options */
extern config_t *config;
#define FILENAME_TRIM_LEN 23
void log_progress(const char *filename, int xfered, int total)
{
const int infolen = 50;
char *fname, *p;
float rate = 0.0, timediff = 0.0, f_xfered = 0.0;
unsigned int eta_h = 0, eta_m = 0, eta_s = 0;
int percent;
char rate_size = 'K', xfered_size = 'K';
if(config->noprogressbar) {
return;
}
/* XXX: big fat hack: due to the fact that we switch out printf/pm_fprintf,
* not everything honors our 'neednl' newline hackery. This forces a newline
* if we need one before drawing the progress bar */
MSG(NL,NULL);
/* this is basically a switch on xferred: 0, total, and anything else */
if(xfered == 0) {
/* set default starting values */
gettimeofday(&initial_time, NULL);
xfered_last = 0;
rate_last = 0.0;
timediff = get_update_timediff(1);
rate = 0.0;
eta_s = 0;
set_output_padding(1); /* we need padding from pm_fprintf output */
} else if(xfered == total) {
/* compute final values */
struct timeval current_time;
float diff_sec, diff_usec;
gettimeofday(¤t_time, NULL);
diff_sec = current_time.tv_sec - initial_time.tv_sec;
diff_usec = current_time.tv_usec - initial_time.tv_usec;
timediff = diff_sec + (diff_usec / 1000000.0);
rate = (float)total / (timediff * 1024.0);
/* round elapsed time to the nearest second */
eta_s = (int)floorf(timediff + 0.5);
set_output_padding(0); /* shut off padding */
} else {
/* compute current average values */
timediff = get_update_timediff(0);
if(timediff < UPDATE_SPEED_SEC) {
/* return if the calling interval was too short */
return;
}
rate = (float)(xfered - xfered_last) / (timediff * 1024.0);
/* average rate to reduce jumpiness */
rate = (float)(rate + 2*rate_last) / 3;
eta_s = (unsigned int)(total - xfered) / (rate * 1024.0);
rate_last = rate;
xfered_last = xfered;
}
percent = (int)((float)xfered) / ((float)total) * 100;
/* fix up time for display */
eta_h = eta_s / 3600;
eta_s -= eta_h * 3600;
eta_m = eta_s / 60;
eta_s -= eta_m * 60;
fname = strdup(filename);
/* strip extension if it's there
* NOTE: in the case of package files, only the pkgname is sent now */
if((p = strstr(fname, PM_EXT_PKG)) || (p = strstr(fname, PM_EXT_DB))) {
*p = '\0';
}
if(strlen(fname) > FILENAME_TRIM_LEN) {
strcpy(fname + FILENAME_TRIM_LEN -3,"...");
}
/* Awesome formatting for progress bar. We need a mess of Kb->Mb->Gb stuff
* here. We'll use limit of 2048 for each until we get some empirical */
/* rate_size = 'K'; was set above */
if(rate > 2048.0) {
rate /= 1024.0;
rate_size = 'M';
if(rate > 2048.0) {
rate /= 1024.0;
rate_size = 'G';
/* we should not go higher than this for a few years (9999.9 Gb/s?)*/
}
}
f_xfered = (float) xfered / 1024.0; /* convert to K by default */
/* xfered_size = 'K'; was set above */
if(f_xfered > 2048.0) {
f_xfered /= 1024.0;
xfered_size = 'M';
if(f_xfered > 2048.0) {
f_xfered /= 1024.0;
xfered_size = 'G';
/* I should seriously hope that archlinux packages never break
* the 9999.9GB mark... we'd have more serious problems than the progress
* bar in pacman */
}
}
printf(" %-*s %6.1f%c %#6.1f%c/s %02u:%02u:%02u", FILENAME_TRIM_LEN, fname,
f_xfered, xfered_size, rate, rate_size, eta_h, eta_m, eta_s);
free(fname);
fill_progress(percent, getcols() - infolen);
return;
}
/* vim: set ts=2 sw=2 noet: */
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