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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 | |
5430f7f2 LP |
9 | under the terms of the GNU Lesser General Public License as published by |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
87d2c1ff LP |
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 | |
5430f7f2 | 16 | Lesser General Public License for more details. |
87d2c1ff | 17 | |
5430f7f2 | 18 | You should have received a copy of the GNU Lesser General Public License |
87d2c1ff LP |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. |
20 | ***/ | |
21 | ||
87d2c1ff | 22 | #include <unistd.h> |
87d2c1ff | 23 | |
8580d1f7 | 24 | #include "sd-daemon.h" |
cf0fbc49 | 25 | #include "sd-messages.h" |
81527be1 | 26 | |
cf0fbc49 | 27 | #include "formats-util.h" |
89fef990 | 28 | #include "journal-authenticate.h" |
ef63833d | 29 | #include "journald-kmsg.h" |
cf0fbc49 | 30 | #include "journald-server.h" |
35e2e347 | 31 | #include "journald-syslog.h" |
fa6ac760 LP |
32 | #include "sigbus.h" |
33 | ||
87d2c1ff LP |
34 | int main(int argc, char *argv[]) { |
35 | Server server; | |
36 | int r; | |
37 | ||
87d2c1ff LP |
38 | if (argc > 1) { |
39 | log_error("This program does not take arguments."); | |
40 | return EXIT_FAILURE; | |
41 | } | |
42 | ||
a6903061 | 43 | log_set_target(LOG_TARGET_SAFE); |
3eff4208 | 44 | log_set_facility(LOG_SYSLOG); |
87d2c1ff LP |
45 | log_parse_environment(); |
46 | log_open(); | |
47 | ||
48 | umask(0022); | |
49 | ||
fa6ac760 LP |
50 | sigbus_install(); |
51 | ||
87d2c1ff LP |
52 | r = server_init(&server); |
53 | if (r < 0) | |
54 | goto finish; | |
55 | ||
8580d1f7 | 56 | server_vacuum(&server, false, false); |
e6960940 | 57 | server_flush_to_var(&server); |
51abe64c | 58 | server_flush_dev_kmsg(&server); |
e6960940 | 59 | |
de0671ee | 60 | log_debug("systemd-journald running as pid "PID_FMT, getpid()); |
8a03c9ef ZJS |
61 | server_driver_message(&server, SD_MESSAGE_JOURNAL_START, |
62 | LOG_MESSAGE("Journal started"), | |
63 | NULL); | |
87d2c1ff | 64 | |
87d2c1ff | 65 | for (;;) { |
3a43da28 | 66 | usec_t t = USEC_INFINITY, n; |
87d2c1ff | 67 | |
565a9388 LP |
68 | r = sd_event_get_state(server.event); |
69 | if (r < 0) | |
70 | goto finish; | |
71 | if (r == SD_EVENT_FINISHED) | |
72 | break; | |
73 | ||
fb0951b0 | 74 | n = now(CLOCK_REALTIME); |
89fef990 | 75 | |
fb0951b0 | 76 | if (server.max_retention_usec > 0 && server.oldest_file_usec > 0) { |
89fef990 | 77 | |
fb0951b0 LP |
78 | /* The retention time is reached, so let's vacuum! */ |
79 | if (server.oldest_file_usec + server.max_retention_usec < n) { | |
80 | log_info("Retention time reached."); | |
81 | server_rotate(&server); | |
8580d1f7 | 82 | server_vacuum(&server, false, false); |
fb0951b0 LP |
83 | continue; |
84 | } | |
89fef990 | 85 | |
fb0951b0 | 86 | /* Calculate when to rotate the next time */ |
f9a810be | 87 | t = server.oldest_file_usec + server.max_retention_usec - n; |
fb0951b0 LP |
88 | } |
89 | ||
90 | #ifdef HAVE_GCRYPT | |
91 | if (server.system_journal) { | |
92 | usec_t u; | |
93 | ||
94 | if (journal_file_next_evolve_usec(server.system_journal, &u)) { | |
95 | if (n >= u) | |
96 | t = 0; | |
97 | else | |
f9a810be | 98 | t = MIN(t, u - n); |
fb0951b0 LP |
99 | } |
100 | } | |
89fef990 | 101 | #endif |
89fef990 | 102 | |
f9a810be | 103 | r = sd_event_run(server.event, t); |
87d2c1ff | 104 | if (r < 0) { |
da927ba9 | 105 | log_error_errno(r, "Failed to run event loop: %m"); |
87d2c1ff | 106 | goto finish; |
89fef990 | 107 | } |
87d2c1ff | 108 | |
99add6fd | 109 | server_maybe_append_tags(&server); |
178cc770 | 110 | server_maybe_warn_forward_syslog_missed(&server); |
87d2c1ff LP |
111 | } |
112 | ||
de0671ee | 113 | log_debug("systemd-journald stopped as pid "PID_FMT, getpid()); |
8a03c9ef ZJS |
114 | server_driver_message(&server, SD_MESSAGE_JOURNAL_STOP, |
115 | LOG_MESSAGE("Journal stopped"), | |
116 | NULL); | |
fe652127 | 117 | |
87d2c1ff | 118 | finish: |
87d2c1ff LP |
119 | server_done(&server); |
120 | ||
121 | return r < 0 ? EXIT_FAILURE : EXIT_SUCCESS; | |
122 | } |