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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) 2003-2014 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"
#include "inums.h"
extern int am_server;
extern int flist_eof;
extern int need_unsorted_flist;
extern int output_needs_newline;
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;
};
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;
unsigned long diff;
double rate, remain;
int pct;
if (is_last) {
int len = snprintf(eol, sizeof eol,
" (xfr#%d, %s-chk=%d/%d)\n",
stats.xferred_files, flist_eof ? "to" : "ir",
stats.num_files - current_file_index - 1,
stats.num_files);
if (INFO_GTE(PROGRESS, 2)) {
static int last_len = 0;
/* Drop \n and pad with spaces if line got shorter. */
if (last_len < --len)
last_len = len;
eol[last_len] = '\0';
while (last_len > len)
eol[--last_len] = ' ';
is_last = 0;
}
/* 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 {
strlcpy(eol, " ", sizeof eol);
/* 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);
}
output_needs_newline = 0;
pct = ofs == size ? 100 : (int) (100.0 * ofs / size);
rprintf(FCLIENT, "\r%15s %3d%% %7.2f%s %s%s",
human_num(ofs), pct, rate, units, rembuf, eol);
if (!is_last) {
output_needs_newline = 1;
rflush(FCLIENT);
}
}
void set_current_file_index(struct file_struct *file, int ndx)
{
if (!file)
current_file_index = cur_flist->used + cur_flist->ndx_start - 1;
else 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);
if (INFO_GTE(PROGRESS, 2)) {
rprint_progress(stats.total_transferred_size,
stats.total_size, &now, True);
} else {
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
if (INFO_GTE(PROGRESS, 2)) {
rprint_progress(stats.total_transferred_size,
stats.total_size, &now, False);
} else
rprint_progress(ofs, size, &now, False);
}
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