/*  -*- 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; #define PROGRESS_HISTORY_SECS 5 struct progress_history {	struct timeval time;	OFF_T ofs;}; static struct progress_history ph_start;static struct progress_history ph_list[PROGRESS_HISTORY_SECS];static int newest_hpos, oldest_hpos; static unsigned long msdiff(struct timeval *t1, struct timeval *t2){	return (t2->tv_sec - t1->tv_sec) * 1000L	     + (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];	const char *units;	int pct = ofs == size ? 100 : (int) (100.0 * ofs / size);	unsigned long diff;	double rate, remain;	int remain_h, remain_m, remain_s; 	if (is_last) {		/* Compute stats based on the starting info. */		diff = msdiff(&ph_start.time, now);		if (!diff)			diff = 1;		rate = (double) (ofs - ph_start.ofs) * 1000.0 / diff / 1024.0;		/* Switch to total time taken for our last update. */		remain = (double) diff / 1000.0;	} else {		/* Compute stats based on recent progress. */		diff = msdiff(&ph_list[oldest_hpos].time, now);		rate = diff ? (double) (ofs - ph_list[oldest_hpos].ofs) * 1000.0		    / diff / 1024.0 : 0;		remain = rate ? (double) (size - ofs) / rate / 1000.0 : 0.0;	} 	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);	}	memset(&ph_start, 0, sizeof ph_start);} void show_progress(OFF_T ofs, OFF_T size){	struct timeval now; 	if (am_server)		return; 	gettimeofday(&now, NULL); 	if (!ph_start.time.tv_sec) {		int i; 		/* Try to guess the real starting time when the sender started		 * to send us data by using the time we last received some data		 * in the last file (if it was recent enough). */		if (msdiff(&ph_list[newest_hpos].time, &now) <= 1500) {			ph_start.time = ph_list[newest_hpos].time;			ph_start.ofs = 0;		} else {			ph_start.time.tv_sec = now.tv_sec;			ph_start.time.tv_usec = now.tv_usec;			ph_start.ofs = ofs;		} 		for (i = 0; i < PROGRESS_HISTORY_SECS; i++)			ph_list[i] = ph_start;	}	else {		if (msdiff(&ph_list[newest_hpos].time, &now) < 1000)			return; 		newest_hpos = oldest_hpos;		oldest_hpos = (oldest_hpos + 1) % PROGRESS_HISTORY_SECS;		ph_list[newest_hpos].time.tv_sec = now.tv_sec;		ph_list[newest_hpos].time.tv_usec = now.tv_usec;		ph_list[newest_hpos].ofs = ofs;	} 	rprint_progress(ofs, size, &now, False);}