/* * Routines to output progress information during a file transfer. * * Copyright (C) 1996-2000 Andrew Tridgell * Copyright (C) 1996 Paul Mackerras * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org> * Copyright (C) 2003-2009 Wayne Davison * * 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 3 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, visit the http://fsf.org website. */ #include "rsync.h" extern int am_server;extern int need_unsorted_flist;extern struct stats stats;extern struct file_list *cur_flist; #define PROGRESS_HISTORY_SECS 5 #ifdef GETPGRP_VOID#define GETPGRP_ARG#else#define GETPGRP_ARG 0#endif struct progress_history {	struct timeval time;	OFF_T ofs;}; int progress_is_active = 0; static struct progress_history ph_start;static struct progress_history ph_list[PROGRESS_HISTORY_SECS];static int newest_hpos, oldest_hpos;static int current_file_index; 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 rembuf[64], eol[128];	const char *units;	int pct = ofs == size ? 100 : (int) (100.0 * ofs / size);	unsigned long diff;	double rate, remain; 	if (is_last) {		/* Compute stats based on the starting info. */		if (!ph_start.time.tv_sec		    || !(diff = msdiff(&ph_start.time, now)))			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. */		if (!(diff = msdiff(&ph_list[oldest_hpos].time, now)))			diff = 1;		rate = (double) (ofs - ph_list[oldest_hpos].ofs) * 1000.0		     / diff / 1024.0;		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";	} 	if (remain < 0)		strlcpy(rembuf, "  ??:??:??", sizeof rembuf);	else {		snprintf(rembuf, sizeof rembuf, "%4d:%02d:%02d",			 (int) (remain / 3600.0),			 (int) (remain / 60.0) % 60,			 (int) remain % 60);	} 	if (is_last) {		snprintf(eol, sizeof eol, " (xfer#%d, to-check=%d/%d)\n",			stats.num_transferred_files,			stats.num_files - current_file_index - 1,			stats.num_files);	} else		strlcpy(eol, "\r", sizeof eol);	progress_is_active = 0;	rprintf(FCLIENT, "%12s %3d%% %7.2f%s %s%s",		human_num(ofs), pct, rate, units, rembuf, eol);	if (!is_last)		progress_is_active = 1;} void set_current_file_index(struct file_struct *file, int ndx){	if (need_unsorted_flist)		current_file_index = flist_find(cur_flist, file) + cur_flist->ndx_start;	else		current_file_index = ndx;	current_file_index -= cur_flist->flist_num;} 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 defined HAVE_GETPGRP && defined HAVE_TCGETPGRP	static pid_t pgrp = -1;	pid_t tc_pgrp;#endif 	if (am_server)		return; #if defined HAVE_GETPGRP && defined HAVE_TCGETPGRP	if (pgrp == -1)		pgrp = getpgrp(GETPGRP_ARG);#endif 	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;	} #if defined HAVE_GETPGRP && defined HAVE_TCGETPGRP	tc_pgrp = tcgetpgrp(STDOUT_FILENO);	if (tc_pgrp != pgrp && tc_pgrp != -1)		return;#endif 	rprint_progress(ofs, size, &now, False);}