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#pragma once
/***
This file is part of systemd.
Copyright 2011 Lennart Poettering
systemd is free software; you can redistribute it and/or modify it
under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation; either version 2.1 of the License, or
(at your option) any later version.
systemd is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public License
along with systemd; If not, see <http://www.gnu.org/licenses/>.
***/
#include <inttypes.h>
#include <stdbool.h>
#include <sys/types.h>
#include <systemd/sd-id128.h>
#include <systemd/sd-journal.h>
#include "systemd-basic/hashmap.h"
#include "systemd-basic/list.h"
#include "systemd-basic/set.h"
#include "journal-def.h"
#include "journal-file.h"
typedef struct Match Match;
typedef struct Location Location;
typedef struct Directory Directory;
typedef enum MatchType {
MATCH_DISCRETE,
MATCH_OR_TERM,
MATCH_AND_TERM
} MatchType;
struct Match {
MatchType type;
Match *parent;
LIST_FIELDS(Match, matches);
/* For concrete matches */
char *data;
size_t size;
le64_t le_hash;
/* For terms */
LIST_HEAD(Match, matches);
};
struct Location {
LocationType type;
bool seqnum_set;
bool realtime_set;
bool monotonic_set;
bool xor_hash_set;
uint64_t seqnum;
sd_id128_t seqnum_id;
uint64_t realtime;
uint64_t monotonic;
sd_id128_t boot_id;
uint64_t xor_hash;
};
struct Directory {
char *path;
int wd;
bool is_root;
};
struct sd_journal {
int toplevel_fd;
char *path;
char *prefix;
OrderedHashmap *files;
MMapCache *mmap;
Location current_location;
JournalFile *current_file;
uint64_t current_field;
Match *level0, *level1, *level2;
pid_t original_pid;
int inotify_fd;
unsigned current_invalidate_counter, last_invalidate_counter;
usec_t last_process_usec;
/* Iterating through unique fields and their data values */
char *unique_field;
JournalFile *unique_file;
uint64_t unique_offset;
/* Iterating through known fields */
JournalFile *fields_file;
uint64_t fields_offset;
uint64_t fields_hash_table_index;
char *fields_buffer;
size_t fields_buffer_allocated;
int flags;
bool on_network:1;
bool no_new_files:1;
bool no_inotify:1;
bool unique_file_lost:1; /* File we were iterating over got
removed, and there were no more
files, so sd_j_enumerate_unique
will return a value equal to 0. */
bool fields_file_lost:1;
bool has_runtime_files:1;
bool has_persistent_files:1;
size_t data_threshold;
Hashmap *directories_by_path;
Hashmap *directories_by_wd;
Hashmap *errors;
};
char *journal_make_match_string(sd_journal *j);
void journal_print_header(sd_journal *j);
#define JOURNAL_FOREACH_DATA_RETVAL(j, data, l, retval) \
for (sd_journal_restart_data(j); ((retval) = sd_journal_enumerate_data((j), &(data), &(l))) > 0; )
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