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 $
40 static void hammer_do_history(const char *path, off_t off, int len);
41 static void dumpat(const char *path, off_t off, int len);
42 static const char *timestr32(u_int32_t time32);
43 static __inline int test_strtol(int res, long val);
44 static __inline int test_strtoll(int res, long long val);
47 * history <file1> ... <fileN>
50 hammer_cmd_history(const char *offset_str, char **av, int ac)
58 if (*offset_str == '@') {
59 errno = 0; /* clear */
60 off = strtoll(offset_str + 1, &rptr, 0);
61 if (test_strtoll(errno, off)) {
62 *rptr = '\0'; /* side effect */
63 printf("%s: %s\n", strerror(errno), offset_str);
67 errno = 0; /* clear */
68 len = strtol(rptr + 1, NULL, 0);
69 if (test_strtol(errno, len)) {
70 printf("%s: %s\n", strerror(errno), rptr);
80 for (i = 0; i < ac; ++i)
81 hammer_do_history(av[i], (off_t)off, (int)len);
85 hammer_do_history(const char *path, off_t off, int len)
87 struct hammer_ioc_history hist;
93 fd = open(path, O_RDONLY);
95 printf("%s\n", strerror(errno));
98 bzero(&hist, sizeof(hist));
99 hist.beg_tid = HAMMER_MIN_TID;
100 hist.end_tid = HAMMER_MAX_TID;
103 hist.head.flags |= HAMMER_IOC_HISTORY_ATKEY;
105 hist.nxt_key = off + 1;
109 if (ioctl(fd, HAMMERIOC_GETHISTORY, &hist) < 0) {
110 printf("%s\n", strerror(errno));
114 status = ((hist.head.flags & HAMMER_IOC_HISTORY_UNSYNCED) ?
116 printf("%016jx %s {\n", (uintmax_t)hist.obj_id, status);
118 for (i = 0; i < hist.count; ++i) {
119 char *hist_path = NULL;
121 asprintf(&hist_path, "%s@@0x%016jx",
122 path, (uintmax_t)hist.hist_ary[i].tid);
124 (uintmax_t)hist.hist_ary[i].tid,
125 timestr32(hist.hist_ary[i].time32));
129 dumpat(hist_path, off, len);
136 if (hist.head.flags & HAMMER_IOC_HISTORY_EOF)
138 if (hist.head.flags & HAMMER_IOC_HISTORY_NEXT_KEY)
140 if ((hist.head.flags & HAMMER_IOC_HISTORY_NEXT_TID) == 0)
142 hist.beg_tid = hist.nxt_tid;
143 if (ioctl(fd, HAMMERIOC_GETHISTORY, &hist) < 0) {
144 printf(" error: %s\n", strerror(errno));
153 dumpat(const char *path, off_t off, int len)
160 fd = open(path, O_RDONLY);
165 n = (len > (int)sizeof(buf)) ? (int)sizeof(buf) : len;
166 r = read(fd, buf, n);
170 for (n = 0; n < r; ++n) {
172 putc(buf[n], stdout);
181 * Return a human-readable timestamp
184 timestr32(u_int32_t time32)
186 static char timebuf[64];
187 time_t t = (time_t)time32;
191 strftime(timebuf, sizeof(timebuf), "%d-%b-%Y %H:%M:%S", tp);
196 * Return non-zero on either overflow or underflow
199 test_strtol(int res, long val)
201 return(res == ERANGE && (val == LONG_MIN || val == LONG_MAX));
205 test_strtoll(int res, long long val)
207 return(res == ERANGE && (val == LLONG_MIN || val == LLONG_MAX));