Annotation of embedaddon/rsync/progress.c, revision 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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