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/*
* 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) 2003-2007 Wayne Davison
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
* 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.,
* 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.
*/
#include "rsync.h"
extern struct stats stats;
extern int am_server;
#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;
};
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. */
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";
}
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, " (xfer#%d, to-check=%d/%d)\n",
stats.num_transferred_files,
stats.num_files - stats.current_file_index - 1,
stats.num_files);
} else
strlcpy(eol, "\r", sizeof eol);
rprintf(FCLIENT, "%12s %3d%% %7.2f%s %4d:%02d:%02d%s",
human_num(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 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);
}
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