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1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ | |
2 | ||
3 | #pragma once | |
4 | ||
5 | /*** | |
6 | This file is part of systemd. | |
7 | ||
8 | Copyright 2011 Lennart Poettering | |
9 | ||
10 | systemd is free software; you can redistribute it and/or modify it | |
11 | under the terms of the GNU Lesser General Public License as published by | |
12 | the Free Software Foundation; either version 2.1 of the License, or | |
13 | (at your option) any later version. | |
14 | ||
15 | systemd is distributed in the hope that it will be useful, but | |
16 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
17 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
18 | Lesser General Public License for more details. | |
19 | ||
20 | You should have received a copy of the GNU Lesser General Public License | |
21 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
22 | ***/ | |
23 | ||
24 | #include <inttypes.h> | |
25 | #include <stdbool.h> | |
26 | #include <sys/types.h> | |
27 | ||
28 | #include "sd-id128.h" | |
29 | #include "sd-journal.h" | |
30 | ||
31 | #include "hashmap.h" | |
32 | #include "journal-def.h" | |
33 | #include "journal-file.h" | |
34 | #include "list.h" | |
35 | #include "set.h" | |
36 | ||
37 | typedef struct Match Match; | |
38 | typedef struct Location Location; | |
39 | typedef struct Directory Directory; | |
40 | ||
41 | typedef enum MatchType { | |
42 | MATCH_DISCRETE, | |
43 | MATCH_OR_TERM, | |
44 | MATCH_AND_TERM | |
45 | } MatchType; | |
46 | ||
47 | struct Match { | |
48 | MatchType type; | |
49 | Match *parent; | |
50 | LIST_FIELDS(Match, matches); | |
51 | ||
52 | /* For concrete matches */ | |
53 | char *data; | |
54 | size_t size; | |
55 | le64_t le_hash; | |
56 | ||
57 | /* For terms */ | |
58 | LIST_HEAD(Match, matches); | |
59 | }; | |
60 | ||
61 | struct Location { | |
62 | LocationType type; | |
63 | ||
64 | bool seqnum_set; | |
65 | bool realtime_set; | |
66 | bool monotonic_set; | |
67 | bool xor_hash_set; | |
68 | ||
69 | uint64_t seqnum; | |
70 | sd_id128_t seqnum_id; | |
71 | ||
72 | uint64_t realtime; | |
73 | ||
74 | uint64_t monotonic; | |
75 | sd_id128_t boot_id; | |
76 | ||
77 | uint64_t xor_hash; | |
78 | }; | |
79 | ||
80 | struct Directory { | |
81 | char *path; | |
82 | int wd; | |
83 | bool is_root; | |
84 | }; | |
85 | ||
86 | struct sd_journal { | |
87 | char *path; | |
88 | char *prefix; | |
89 | ||
90 | OrderedHashmap *files; | |
91 | MMapCache *mmap; | |
92 | ||
93 | Location current_location; | |
94 | ||
95 | JournalFile *current_file; | |
96 | uint64_t current_field; | |
97 | ||
98 | Match *level0, *level1, *level2; | |
99 | ||
100 | pid_t original_pid; | |
101 | ||
102 | int inotify_fd; | |
103 | unsigned current_invalidate_counter, last_invalidate_counter; | |
104 | usec_t last_process_usec; | |
105 | ||
106 | char *unique_field; | |
107 | JournalFile *unique_file; | |
108 | uint64_t unique_offset; | |
109 | ||
110 | int flags; | |
111 | ||
112 | bool on_network; | |
113 | bool no_new_files; | |
114 | bool unique_file_lost; /* File we were iterating over got | |
115 | removed, and there were no more | |
116 | files, so sd_j_enumerate_unique | |
117 | will return a value equal to 0. */ | |
118 | ||
119 | size_t data_threshold; | |
120 | ||
121 | Hashmap *directories_by_path; | |
122 | Hashmap *directories_by_wd; | |
123 | ||
124 | Hashmap *errors; | |
125 | }; | |
126 | ||
127 | char *journal_make_match_string(sd_journal *j); | |
128 | void journal_print_header(sd_journal *j); | |
129 | ||
130 | #define JOURNAL_FOREACH_DATA_RETVAL(j, data, l, retval) \ | |
131 | for (sd_journal_restart_data(j); ((retval) = sd_journal_enumerate_data((j), &(data), &(l))) > 0; ) |