]>
Commit | Line | Data |
---|---|---|
87d2c1ff LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2011 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU General Public License as published by | |
10 | the Free Software Foundation; either version 2 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <fcntl.h> | |
23 | #include <errno.h> | |
24 | #include <stddef.h> | |
3fbf9cbb LP |
25 | #include <string.h> |
26 | #include <stdio.h> | |
27 | #include <unistd.h> | |
28 | #include <stdlib.h> | |
50f20cfd | 29 | #include <sys/poll.h> |
87d2c1ff | 30 | |
3fbf9cbb LP |
31 | #include "sd-journal.h" |
32 | #include "log.h" | |
250d54b5 | 33 | |
50f20cfd LP |
34 | static bool arg_follow = true; |
35 | ||
87d2c1ff | 36 | int main(int argc, char *argv[]) { |
50f20cfd | 37 | int r, i, fd; |
3fbf9cbb LP |
38 | sd_journal *j = NULL; |
39 | ||
40 | log_set_max_level(LOG_DEBUG); | |
41 | log_set_target(LOG_TARGET_CONSOLE); | |
87d2c1ff LP |
42 | |
43 | log_parse_environment(); | |
44 | log_open(); | |
45 | ||
3fbf9cbb | 46 | r = sd_journal_open(&j); |
87d2c1ff LP |
47 | if (r < 0) { |
48 | log_error("Failed to open journal: %s", strerror(-r)); | |
3fbf9cbb | 49 | goto finish; |
87d2c1ff LP |
50 | } |
51 | ||
de7b95cd LP |
52 | for (i = 1; i < argc; i++) { |
53 | r = sd_journal_add_match(j, argv[i], strlen(argv[i])); | |
54 | if (r < 0) { | |
55 | log_error("Failed to add match: %s", strerror(-r)); | |
56 | goto finish; | |
57 | } | |
58 | } | |
59 | ||
50f20cfd LP |
60 | fd = sd_journal_get_fd(j); |
61 | if (fd < 0) { | |
62 | log_error("Failed to get wakeup fd: %s", strerror(-fd)); | |
63 | goto finish; | |
64 | } | |
8725d60a | 65 | |
50f20cfd LP |
66 | r = sd_journal_seek_head(j); |
67 | if (r < 0) { | |
68 | log_error("Failed to seek to head: %s", strerror(-r)); | |
69 | goto finish; | |
70 | } | |
87d2c1ff | 71 | |
50f20cfd LP |
72 | for (;;) { |
73 | struct pollfd pollfd; | |
74 | ||
75 | while (sd_journal_next(j) > 0) { | |
76 | const void *data; | |
77 | size_t length; | |
78 | char *cursor; | |
79 | uint64_t realtime = 0, monotonic = 0; | |
80 | ||
81 | r = sd_journal_get_cursor(j, &cursor); | |
82 | if (r < 0) { | |
83 | log_error("Failed to get cursor: %s", strerror(-r)); | |
84 | goto finish; | |
85 | } | |
86 | ||
87 | printf("entry: %s\n", cursor); | |
88 | free(cursor); | |
89 | ||
90 | sd_journal_get_realtime_usec(j, &realtime); | |
91 | sd_journal_get_monotonic_usec(j, &monotonic, NULL); | |
92 | printf("realtime: %llu\n" | |
93 | "monotonic: %llu\n", | |
94 | (unsigned long long) realtime, | |
95 | (unsigned long long) monotonic); | |
96 | ||
97 | SD_JOURNAL_FOREACH_DATA(j, data, length) | |
98 | printf("\t%.*s\n", (int) length, (const char*) data); | |
87d2c1ff LP |
99 | } |
100 | ||
50f20cfd LP |
101 | if (!arg_follow) |
102 | break; | |
103 | ||
104 | zero(pollfd); | |
105 | pollfd.fd = fd; | |
106 | pollfd.events = POLLIN; | |
87d2c1ff | 107 | |
50f20cfd LP |
108 | if (poll(&pollfd, 1, -1) < 0) { |
109 | if (errno == EINTR) | |
110 | break; | |
c2373f84 | 111 | |
50f20cfd LP |
112 | log_error("poll(): %m"); |
113 | r = -errno; | |
114 | goto finish; | |
115 | } | |
8725d60a | 116 | |
50f20cfd LP |
117 | r = sd_journal_process(j); |
118 | if (r < 0) { | |
119 | log_error("Failed to process: %s", strerror(-r)); | |
120 | goto finish; | |
121 | } | |
de190aef | 122 | } |
87d2c1ff LP |
123 | |
124 | finish: | |
3fbf9cbb LP |
125 | if (j) |
126 | sd_journal_close(j); | |
87d2c1ff | 127 | |
3fbf9cbb | 128 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; |
87d2c1ff | 129 | } |