2 * Copyright (c) 2008 The DragonFly Project. All rights reserved.
4 * This code is derived from software contributed to The DragonFly Project
5 * by Matthew Dillon <dillon@backplane.com>
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * 3. Neither the name of The DragonFly Project nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific, prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
24 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
25 * COPYRIGHT HOLDERS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
26 * INCIDENTAL, SPECIAL, EXEMPLARY OR CONSEQUENTIAL DAMAGES (INCLUDING,
27 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
28 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
29 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
30 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
31 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
34 * $DragonFly: src/sbin/hammer/cmd_history.c,v 1.4 2008/06/24 17:40:21 dillon Exp $
39 static void hammer_do_history(const char *path, off_t off, int len);
40 static void dumpat(const char *path, off_t off, int len);
41 static const char *timestr32(u_int32_t time32);
44 * history <file1> ... <fileN>
47 hammer_cmd_history(const char *offset_str, char **av, int ac)
55 if (*offset_str == '@') {
56 off = strtoll(offset_str + 1, &rptr, 0);
58 len = strtol(rptr + 1, NULL, 0);
63 for (i = 0; i < ac; ++i)
64 hammer_do_history(av[i], off, len);
68 hammer_do_history(const char *path, off_t off, int len)
70 struct hammer_ioc_history hist;
76 fd = open(path, O_RDONLY);
78 printf("%s\n", strerror(errno));
81 bzero(&hist, sizeof(hist));
82 hist.beg_tid = HAMMER_MIN_TID;
83 hist.end_tid = HAMMER_MAX_TID;
86 hist.head.flags |= HAMMER_IOC_HISTORY_ATKEY;
88 hist.nxt_key = off + 1;
92 if (ioctl(fd, HAMMERIOC_GETHISTORY, &hist) < 0) {
93 printf("%s\n", strerror(errno));
97 status = ((hist.head.flags & HAMMER_IOC_HISTORY_UNSYNCED) ?
99 printf("%016jx %s {\n", (uintmax_t)hist.obj_id, status);
101 for (i = 0; i < hist.count; ++i) {
102 char *hist_path = NULL;
104 asprintf(&hist_path, "%s@@0x%016jx",
105 path, (uintmax_t)hist.hist_ary[i].tid);
107 (uintmax_t)hist.hist_ary[i].tid,
108 timestr32(hist.hist_ary[i].time32));
112 dumpat(hist_path, off, len);
119 if (hist.head.flags & HAMMER_IOC_HISTORY_EOF)
121 if (hist.head.flags & HAMMER_IOC_HISTORY_NEXT_KEY)
123 if ((hist.head.flags & HAMMER_IOC_HISTORY_NEXT_TID) == 0)
125 hist.beg_tid = hist.nxt_tid;
126 if (ioctl(fd, HAMMERIOC_GETHISTORY, &hist) < 0) {
127 printf(" error: %s\n", strerror(errno));
136 dumpat(const char *path, off_t off, int len)
143 fd = open(path, O_RDONLY);
148 n = (len > (int)sizeof(buf)) ? (int)sizeof(buf) : len;
149 r = read(fd, buf, n);
153 for (n = 0; n < r; ++n) {
155 putc(buf[n], stdout);
163 * Return a human-readable timestamp
166 timestr32(u_int32_t time32)
168 static char timebuf[64];
169 time_t t = (time_t)time32;
173 strftime(timebuf, sizeof(timebuf), "%d-%b-%Y %H:%M:%S", tp);