Make idev, hlink and file_struct + strings use allocation

[rsync/rsync.git] / progress.c

/*  -*- c-file-style: "linux" -*-
 *
 * Copyright (C) 1996-2000 by Andrew Tridgell
 * Copyright (C) Paul Mackerras 1996
 * Copyright (C) 2001, 2002 by Martin Pool <mbp@samba.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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

#include "rsync.h"

extern struct stats stats;
extern int am_server;

static OFF_T  last_ofs;
static struct timeval print_time;
static struct timeval start_time;
static OFF_T  start_ofs;

static unsigned long msdiff(struct timeval *t1, struct timeval *t2)
{
	return (t2->tv_sec - t1->tv_sec) * 1000
	     + (t2->tv_usec - t1->tv_usec) / 1000;
}


/**
 * @param ofs Current position in file
 * @param size Total size of file
 * @param is_last True if this is the last time progress will be
 * printed for this file, so we should output a newline.  (Not
 * necessarily the same as all bytes being received.)
 **/
static void rprint_progress(OFF_T ofs, OFF_T size, struct timeval *now,
			    int is_last)
{
	char eol[256];
	int pct = (ofs == size) ? 100 : (int)((100.0*ofs)/size);
	unsigned long diff = msdiff(&start_time, now);
	double rate = diff ? (double) (ofs-start_ofs) * 1000.0 / diff / 1024.0 : 0;
	const char *units;
	/* If we've finished transferring this file, show the time taken;
	 * otherwise show expected time to complete.  That's kind of
	 * inconsistent, but people can probably cope.  Hopefully we'll
	 * get more consistent and complete progress reporting soon. --
	 * mbp */
	double remain = is_last ? (double) diff / 1000.0
	              : rate ? (double) (size-ofs) / rate / 1000.0 : 0.0;
	int remain_h, remain_m, remain_s;

	if (rate > 1024*1024) {
		rate /= 1024.0 * 1024.0;
		units = "GB/s";
	} else if (rate > 1024) {
		rate /= 1024.0;
		units = "MB/s";
	} else {
		units = "kB/s";
	}

	remain_s = (int) remain % 60;
	remain_m = (int) (remain / 60.0) % 60;
	remain_h = (int) (remain / 3600.0);

	if (is_last) {
		snprintf(eol, sizeof eol, "  (%d, %.1f%% of %d)\n",
			stats.num_transferred_files,
			(float)((stats.current_file_index+1) * 100)
				/ stats.num_files,
			stats.num_files);
	} else
		strcpy(eol, "\r");
	rprintf(FINFO, "%12.0f %3d%% %7.2f%s %4d:%02d:%02d%s",
		(double) ofs, pct, rate, units,
		remain_h, remain_m, remain_s, eol);
}

void end_progress(OFF_T size)
{
	if (!am_server) {
		struct timeval now;
		gettimeofday(&now, NULL);
		rprint_progress(size, size, &now, True);
	}
	last_ofs = 0;
	start_ofs = 0;
	print_time.tv_sec = print_time.tv_usec = 0;
	start_time.tv_sec = start_time.tv_usec = 0;
}

void show_progress(OFF_T ofs, OFF_T size)
{
	struct timeval now;

	if (!start_time.tv_sec) {
		gettimeofday(&now, NULL);
		start_time.tv_sec = now.tv_sec;
		start_time.tv_usec = now.tv_usec;
		start_ofs = ofs;
		if (am_server)
			return;
	}
	else {
		if (am_server)
			return;
		gettimeofday(&now, NULL);
	}

	if (ofs > last_ofs + 1000 && msdiff(&print_time, &now) > 250) {
		rprint_progress(ofs, size, &now, False);
		last_ofs = ofs;
		print_time.tv_sec = now.tv_sec;
		print_time.tv_usec = now.tv_usec;
	}
}