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 typedef struct cmd_attr {
45 static void hammer_do_history(const char *path, off_t off, long len);
46 static int parse_attr(const char *s, cmd_attr_t *ca);
47 static int parse_attr_path(const char *s, cmd_attr_t *ca);
48 static void dumpat(const char *path, off_t off, long len);
49 static const char *timestr32(uint32_t time32);
50 static __inline int test_strtol(int res, long val);
51 static __inline int test_strtoll(int res, long long val);
54 * history <file1> ... <fileN>
57 hammer_cmd_history(const char *offset_str, char **av, int ac)
63 bzero(&ca, sizeof(ca));
64 if (parse_attr(offset_str, &ca) == 0)
67 for (i = 0; i < ac; ++i) {
69 parse_attr_path(av[i], &ca);
71 ca.path = strdup(av[i]);
72 hammer_do_history(ca.path, ca.offset, ca.length);
79 hammer_do_history(const char *path, off_t off, long len)
81 struct hammer_ioc_history hist;
87 fd = open(path, O_RDONLY);
89 printf("%s\n", strerror(errno));
92 bzero(&hist, sizeof(hist));
93 hist.beg_tid = HAMMER_MIN_TID;
94 hist.end_tid = HAMMER_MAX_TID;
97 hist.head.flags |= HAMMER_IOC_HISTORY_ATKEY;
99 hist.nxt_key = off + 1;
103 if (ioctl(fd, HAMMERIOC_GETHISTORY, &hist) < 0) {
104 printf("%s\n", strerror(errno));
108 status = ((hist.head.flags & HAMMER_IOC_HISTORY_UNSYNCED) ?
110 printf("%016jx %s {\n", (uintmax_t)hist.obj_id, status);
112 for (i = 0; i < hist.count; ++i) {
113 char *hist_path = NULL;
115 asprintf(&hist_path, "%s@@0x%016jx",
116 path, (uintmax_t)hist.hist_ary[i].tid);
118 (uintmax_t)hist.hist_ary[i].tid,
119 timestr32(hist.hist_ary[i].time32));
123 dumpat(hist_path, off, len);
129 if (hist.head.flags & HAMMER_IOC_HISTORY_EOF)
131 if (hist.head.flags & HAMMER_IOC_HISTORY_NEXT_KEY)
133 if ((hist.head.flags & HAMMER_IOC_HISTORY_NEXT_TID) == 0)
135 hist.beg_tid = hist.nxt_tid;
136 if (ioctl(fd, HAMMERIOC_GETHISTORY, &hist) < 0) {
137 printf(" error: %s\n", strerror(errno));
146 parse_attr(const char *s, cmd_attr_t *ca)
152 ca->offset = -1; /* Don't use offset as a key */
153 ca->length = 32; /* Default dump size */
156 return(-1); /* not parsed */
158 errno = 0; /* clear */
159 offset = strtoll(s + 1, &rptr, 0);
160 if (test_strtoll(errno, offset)) {
161 *rptr = '\0'; /* side effect */
167 errno = 0; /* clear */
168 length = strtol(rptr + 1, NULL, 0);
169 if (test_strtol(errno, length))
179 parse_attr_path(const char *s, cmd_attr_t *ca)
187 if (stat(s, &st) == 0)
188 return(-1); /* real path */
191 if (p == NULL || p == s)
192 return(-1); /* no attr specified */
194 ret = parse_attr(p, ca);
197 ca->path = calloc(1, length);
198 strncpy(ca->path, s, length - 1);
204 dumpat(const char *path, off_t off, long len)
211 fd = open(path, O_RDONLY);
216 n = (len > (int)sizeof(buf)) ? (int)sizeof(buf) : len;
217 r = read(fd, buf, n);
221 for (n = 0; n < r; ++n) {
223 putc(buf[n], stdout);
232 * Return a human-readable timestamp
235 timestr32(uint32_t time32)
237 static char timebuf[64];
238 time_t t = (time_t)time32;
242 strftime(timebuf, sizeof(timebuf), "%d-%b-%Y %H:%M:%S", tp);
247 * Return non-zero on either overflow or underflow
250 test_strtol(int res, long val)
252 return(res == ERANGE && (val == LONG_MIN || val == LONG_MAX));
256 test_strtoll(int res, long long val)
258 return(res == ERANGE && (val == LLONG_MIN || val == LLONG_MAX));