1 /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
7 This file is part of systemd.
9 Copyright 2011 Lennart Poettering
11 systemd is free software; you can redistribute it and/or modify it
12 under the terms of the GNU General Public License as published by
13 the Free Software Foundation; either version 2 of the License, or
14 (at your option) any later version.
16 systemd is distributed in the hope that it will be useful, but
17 WITHOUT ANY WARRANTY; without even the implied warranty of
18 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 General Public License for more details.
21 You should have received a copy of the GNU General Public License
22 along with systemd; If not, see <http://www.gnu.org/licenses/>.
26 #include <sys/types.h>
31 #include <systemd/sd-id128.h>
38 int sd_journal_print(int piority, const char *format, ...) __attribute__ ((format (printf, 2, 3)));
39 int sd_journal_printv(int priority, const char *format, va_list ap);
40 int sd_journal_send(const char *format, ...) __attribute__((sentinel));
41 int sd_journal_sendv(const struct iovec *iov, int n);
43 /* Used by the macros below */
44 int sd_journal_print_with_location(int priority, const char *file, const char *line, const char *func, const char *format, ...) __attribute__ ((format (printf, 5, 6)));
45 int sd_journal_printv_with_location(int priority, const char *file, const char *line, const char *func, const char *format, va_list ap);
46 int sd_journal_send_with_location(const char *file, const char *line, const char *func, const char *format, ...) __attribute__((sentinel));
47 int sd_journal_sendv_with_location(const char *file, const char *line, const char *func, const struct iovec *iov, int n);
49 /* implicitly add code location to messages sent, if this is enabled */
50 #ifndef SD_JOURNAL_SUPPRESS_LOCATION
52 #define _sd_XSTRINGIFY(x) #x
53 #define _sd_STRINGIFY(x) _sd_XSTRINGIFY(x)
55 #define sd_journal_print(priority, ...) sd_journal_print_with_location(priority, "CODE_FILE=" __FILE__, "CODE_LINE=" _sd_STRINGIFY(__LINE__), __func__, __VA_ARGS__)
56 #define sd_journal_printv(priority, format, ap) sd_journal_printv_with_location(priority, "CODE_FILE=" __FILE__, "CODE_LINE=" _sd_STRINGIFY(__LINE__), __func__, format, ap)
57 #define sd_journal_send(...) sd_journal_send_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _sd_STRINGIFY(__LINE__), __func__, __VA_ARGS__)
58 #define sd_journal_sendv(iovec, n) sd_journal_sendv_with_location("CODE_FILE=" __FILE__, "CODE_LINE=" _sd_STRINGIFY(__LINE__), __func__, iovec, n)
62 int sd_journal_stream_fd(const char *identifier, int priority, int level_prefix);
64 /* Browse journal stream */
66 typedef struct sd_journal sd_journal;
69 SD_JOURNAL_LOCAL_ONLY = 1,
70 SD_JOURNAL_RUNTIME_ONLY = 2,
71 SD_JOURNAL_SYSTEM_ONLY = 4
74 int sd_journal_open(sd_journal **ret, int flags);
75 void sd_journal_close(sd_journal *j);
77 int sd_journal_previous(sd_journal *j);
78 int sd_journal_next(sd_journal *j);
80 int sd_journal_previous_skip(sd_journal *j, uint64_t skip);
81 int sd_journal_next_skip(sd_journal *j, uint64_t skip);
83 int sd_journal_get_realtime_usec(sd_journal *j, uint64_t *ret);
84 int sd_journal_get_monotonic_usec(sd_journal *j, uint64_t *ret, sd_id128_t *ret_boot_id);
85 int sd_journal_get_data(sd_journal *j, const char *field, const void **data, size_t *l);
86 int sd_journal_enumerate_data(sd_journal *j, const void **data, size_t *l);
87 void sd_journal_restart_data(sd_journal *j);
89 int sd_journal_add_match(sd_journal *j, const void *data, size_t size);
90 void sd_journal_flush_matches(sd_journal *j);
92 int sd_journal_seek_head(sd_journal *j);
93 int sd_journal_seek_tail(sd_journal *j);
94 int sd_journal_seek_monotonic_usec(sd_journal *j, sd_id128_t boot_id, uint64_t usec);
95 int sd_journal_seek_realtime_usec(sd_journal *j, uint64_t usec);
96 int sd_journal_seek_cursor(sd_journal *j, const char *cursor);
98 int sd_journal_get_cursor(sd_journal *j, char **cursor);
100 /* int sd_journal_query_unique(sd_journal *j, const char *field); /\* missing *\/ */
101 /* int sd_journal_enumerate_unique(sd_journal *j, const void **data, size_t *l); /\* missing *\/ */
102 /* void sd_journal_restart_unique(sd_journal *j); /\* missing *\/ */
107 SD_JOURNAL_INVALIDATE_ADD,
108 SD_JOURNAL_INVALIDATE_REMOVE
111 int sd_journal_get_fd(sd_journal *j);
112 int sd_journal_process(sd_journal *j);
114 #define SD_JOURNAL_FOREACH(j) \
115 if (sd_journal_seek_head(j) >= 0) \
116 while (sd_journal_next(j) > 0)
118 #define SD_JOURNAL_FOREACH_BACKWARDS(j) \
119 if (sd_journal_seek_tail(j) >= 0) \
120 while (sd_journal_previous(j) > 0)
122 #define SD_JOURNAL_FOREACH_DATA(j, data, l) \
123 for (sd_journal_restart_data(j); sd_journal_enumerate_data((j), &(data), &(l)) > 0; )
125 #define SD_JOURNAL_FOREACH_UNIQUE(j, data, l) \
126 for (sd_journal_restart_unique(j); sd_journal_enumerate_data((j), &(data), &(l)) > 0; )