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);
42 static __inline int test_strtol(int res, long val);
43 static __inline int test_strtoll(int res, long long val);
46 * history <file1> ... <fileN>
49 hammer_cmd_history(const char *offset_str, char **av, int ac)
57 if (*offset_str == '@') {
58 errno = 0; /* clear */
59 off = strtoll(offset_str + 1, &rptr, 0);
60 if (test_strtoll(errno, off)) {
61 *rptr = '\0'; /* side effect */
62 printf("%s: %s\n", strerror(errno), offset_str);
66 errno = 0; /* clear */
67 len = strtol(rptr + 1, NULL, 0);
68 if (test_strtol(errno, len)) {
69 printf("%s: %s\n", strerror(errno), rptr);
79 for (i = 0; i < ac; ++i)
80 hammer_do_history(av[i], (off_t)off, (int)len);
84 hammer_do_history(const char *path, off_t off, int len)
86 struct hammer_ioc_history hist;
92 fd = open(path, O_RDONLY);
94 printf("%s\n", strerror(errno));
97 bzero(&hist, sizeof(hist));
98 hist.beg_tid = HAMMER_MIN_TID;
99 hist.end_tid = HAMMER_MAX_TID;
102 hist.head.flags |= HAMMER_IOC_HISTORY_ATKEY;
104 hist.nxt_key = off + 1;
108 if (ioctl(fd, HAMMERIOC_GETHISTORY, &hist) < 0) {
109 printf("%s\n", strerror(errno));
113 status = ((hist.head.flags & HAMMER_IOC_HISTORY_UNSYNCED) ?
115 printf("%016jx %s {\n", (uintmax_t)hist.obj_id, status);
117 for (i = 0; i < hist.count; ++i) {
118 char *hist_path = NULL;
120 asprintf(&hist_path, "%s@@0x%016jx",
121 path, (uintmax_t)hist.hist_ary[i].tid);
123 (uintmax_t)hist.hist_ary[i].tid,
124 timestr32(hist.hist_ary[i].time32));
128 dumpat(hist_path, off, len);
135 if (hist.head.flags & HAMMER_IOC_HISTORY_EOF)
137 if (hist.head.flags & HAMMER_IOC_HISTORY_NEXT_KEY)
139 if ((hist.head.flags & HAMMER_IOC_HISTORY_NEXT_TID) == 0)
141 hist.beg_tid = hist.nxt_tid;
142 if (ioctl(fd, HAMMERIOC_GETHISTORY, &hist) < 0) {
143 printf(" error: %s\n", strerror(errno));
152 dumpat(const char *path, off_t off, int len)
159 fd = open(path, O_RDONLY);
164 n = (len > (int)sizeof(buf)) ? (int)sizeof(buf) : len;
165 r = read(fd, buf, n);
169 for (n = 0; n < r; ++n) {
171 putc(buf[n], stdout);
180 * Return a human-readable timestamp
183 timestr32(u_int32_t time32)
185 static char timebuf[64];
186 time_t t = (time_t)time32;
190 strftime(timebuf, sizeof(timebuf), "%d-%b-%Y %H:%M:%S", tp);
195 * Return non-zero on either overflow or underflow
198 test_strtol(int res, long val)
200 return(res == ERANGE && (val == LONG_MIN || val == LONG_MAX));
204 test_strtoll(int res, long long val)
206 return(res == ERANGE && (val == LLONG_MIN || val == LLONG_MAX));