Annotation of embedaddon/rsync/progress.c, revision 1.1.1.1
1.1 misho 1: /*
2: * Routines to output progress information during a file transfer.
3: *
4: * Copyright (C) 1996-2000 Andrew Tridgell
5: * Copyright (C) 1996 Paul Mackerras
6: * Copyright (C) 2001, 2002 Martin Pool <mbp@samba.org>
7: * Copyright (C) 2003-2009 Wayne Davison
8: *
9: * This program is free software; you can redistribute it and/or modify
10: * it under the terms of the GNU General Public License as published by
11: * the Free Software Foundation; either version 3 of the License, or
12: * (at your option) any later version.
13: *
14: * This program is distributed in the hope that it will be useful,
15: * but WITHOUT ANY WARRANTY; without even the implied warranty of
16: * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17: * GNU General Public License for more details.
18: *
19: * You should have received a copy of the GNU General Public License along
20: * with this program; if not, visit the http://fsf.org website.
21: */
22:
23: #include "rsync.h"
24:
25: extern int am_server;
26: extern int need_unsorted_flist;
27: extern struct stats stats;
28: extern struct file_list *cur_flist;
29:
30: #define PROGRESS_HISTORY_SECS 5
31:
32: #ifdef GETPGRP_VOID
33: #define GETPGRP_ARG
34: #else
35: #define GETPGRP_ARG 0
36: #endif
37:
38: struct progress_history {
39: struct timeval time;
40: OFF_T ofs;
41: };
42:
43: int progress_is_active = 0;
44:
45: static struct progress_history ph_start;
46: static struct progress_history ph_list[PROGRESS_HISTORY_SECS];
47: static int newest_hpos, oldest_hpos;
48: static int current_file_index;
49:
50: static unsigned long msdiff(struct timeval *t1, struct timeval *t2)
51: {
52: return (t2->tv_sec - t1->tv_sec) * 1000L
53: + (t2->tv_usec - t1->tv_usec) / 1000;
54: }
55:
56:
57: /**
58: * @param ofs Current position in file
59: * @param size Total size of file
60: * @param is_last True if this is the last time progress will be
61: * printed for this file, so we should output a newline. (Not
62: * necessarily the same as all bytes being received.)
63: **/
64: static void rprint_progress(OFF_T ofs, OFF_T size, struct timeval *now,
65: int is_last)
66: {
67: char rembuf[64], eol[128];
68: const char *units;
69: int pct = ofs == size ? 100 : (int) (100.0 * ofs / size);
70: unsigned long diff;
71: double rate, remain;
72:
73: if (is_last) {
74: /* Compute stats based on the starting info. */
75: if (!ph_start.time.tv_sec
76: || !(diff = msdiff(&ph_start.time, now)))
77: diff = 1;
78: rate = (double) (ofs - ph_start.ofs) * 1000.0 / diff / 1024.0;
79: /* Switch to total time taken for our last update. */
80: remain = (double) diff / 1000.0;
81: } else {
82: /* Compute stats based on recent progress. */
83: if (!(diff = msdiff(&ph_list[oldest_hpos].time, now)))
84: diff = 1;
85: rate = (double) (ofs - ph_list[oldest_hpos].ofs) * 1000.0
86: / diff / 1024.0;
87: remain = rate ? (double) (size - ofs) / rate / 1000.0 : 0.0;
88: }
89:
90: if (rate > 1024*1024) {
91: rate /= 1024.0 * 1024.0;
92: units = "GB/s";
93: } else if (rate > 1024) {
94: rate /= 1024.0;
95: units = "MB/s";
96: } else {
97: units = "kB/s";
98: }
99:
100: if (remain < 0)
101: strlcpy(rembuf, " ??:??:??", sizeof rembuf);
102: else {
103: snprintf(rembuf, sizeof rembuf, "%4d:%02d:%02d",
104: (int) (remain / 3600.0),
105: (int) (remain / 60.0) % 60,
106: (int) remain % 60);
107: }
108:
109: if (is_last) {
110: snprintf(eol, sizeof eol, " (xfer#%d, to-check=%d/%d)\n",
111: stats.num_transferred_files,
112: stats.num_files - current_file_index - 1,
113: stats.num_files);
114: } else
115: strlcpy(eol, "\r", sizeof eol);
116: progress_is_active = 0;
117: rprintf(FCLIENT, "%12s %3d%% %7.2f%s %s%s",
118: human_num(ofs), pct, rate, units, rembuf, eol);
119: if (!is_last)
120: progress_is_active = 1;
121: }
122:
123: void set_current_file_index(struct file_struct *file, int ndx)
124: {
125: if (need_unsorted_flist)
126: current_file_index = flist_find(cur_flist, file) + cur_flist->ndx_start;
127: else
128: current_file_index = ndx;
129: current_file_index -= cur_flist->flist_num;
130: }
131:
132: void end_progress(OFF_T size)
133: {
134: if (!am_server) {
135: struct timeval now;
136: gettimeofday(&now, NULL);
137: rprint_progress(size, size, &now, True);
138: }
139: memset(&ph_start, 0, sizeof ph_start);
140: }
141:
142: void show_progress(OFF_T ofs, OFF_T size)
143: {
144: struct timeval now;
145: #if defined HAVE_GETPGRP && defined HAVE_TCGETPGRP
146: static pid_t pgrp = -1;
147: pid_t tc_pgrp;
148: #endif
149:
150: if (am_server)
151: return;
152:
153: #if defined HAVE_GETPGRP && defined HAVE_TCGETPGRP
154: if (pgrp == -1)
155: pgrp = getpgrp(GETPGRP_ARG);
156: #endif
157:
158: gettimeofday(&now, NULL);
159:
160: if (!ph_start.time.tv_sec) {
161: int i;
162:
163: /* Try to guess the real starting time when the sender started
164: * to send us data by using the time we last received some data
165: * in the last file (if it was recent enough). */
166: if (msdiff(&ph_list[newest_hpos].time, &now) <= 1500) {
167: ph_start.time = ph_list[newest_hpos].time;
168: ph_start.ofs = 0;
169: } else {
170: ph_start.time.tv_sec = now.tv_sec;
171: ph_start.time.tv_usec = now.tv_usec;
172: ph_start.ofs = ofs;
173: }
174:
175: for (i = 0; i < PROGRESS_HISTORY_SECS; i++)
176: ph_list[i] = ph_start;
177: }
178: else {
179: if (msdiff(&ph_list[newest_hpos].time, &now) < 1000)
180: return;
181:
182: newest_hpos = oldest_hpos;
183: oldest_hpos = (oldest_hpos + 1) % PROGRESS_HISTORY_SECS;
184: ph_list[newest_hpos].time.tv_sec = now.tv_sec;
185: ph_list[newest_hpos].time.tv_usec = now.tv_usec;
186: ph_list[newest_hpos].ofs = ofs;
187: }
188:
189: #if defined HAVE_GETPGRP && defined HAVE_TCGETPGRP
190: tc_pgrp = tcgetpgrp(STDOUT_FILENO);
191: if (tc_pgrp != pgrp && tc_pgrp != -1)
192: return;
193: #endif
194:
195: rprint_progress(ofs, size, &now, False);
196: }
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