a65f06bb27
A few asserts are replaced with 'return -EINVAL'. I think that assert should not be used to check argument in public functions. Fields in struct sd_journal are rearranged to make it less swiss-cheesy.
146 lines
3.4 KiB
C
146 lines
3.4 KiB
C
/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
|
|
|
|
#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 <sys/types.h>
|
|
#include <inttypes.h>
|
|
#include <stdbool.h>
|
|
|
|
#include <systemd/sd-id128.h>
|
|
|
|
#include "journal-def.h"
|
|
#include "list.h"
|
|
#include "hashmap.h"
|
|
#include "set.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);
|
|
};
|
|
|
|
typedef enum LocationType {
|
|
/* The first and last entries, resp. */
|
|
LOCATION_HEAD,
|
|
LOCATION_TAIL,
|
|
|
|
/* We already read the entry we currently point to, and the
|
|
* next one to read should probably not be this one again. */
|
|
LOCATION_DISCRETE,
|
|
|
|
/* We should seek to the precise location specified, and
|
|
* return it, as we haven't read it yet. */
|
|
LOCATION_SEEK
|
|
} LocationType;
|
|
|
|
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 {
|
|
char *path;
|
|
|
|
Hashmap *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;
|
|
|
|
char *unique_field;
|
|
JournalFile *unique_file;
|
|
uint64_t unique_offset;
|
|
|
|
int flags;
|
|
|
|
bool on_network;
|
|
bool no_new_files;
|
|
|
|
size_t data_threshold;
|
|
|
|
Hashmap *directories_by_path;
|
|
Hashmap *directories_by_wd;
|
|
|
|
Set *errors;
|
|
};
|
|
|
|
char *journal_make_match_string(sd_journal *j);
|
|
void journal_print_header(sd_journal *j);
|
|
|
|
static inline void journal_closep(sd_journal **j) {
|
|
sd_journal_close(*j);
|
|
}
|
|
|
|
#define _cleanup_journal_close_ _cleanup_(journal_closep)
|
|
|
|
#define JOURNAL_FOREACH_DATA_RETVAL(j, data, l, retval) \
|
|
for (sd_journal_restart_data(j); ((retval) = sd_journal_enumerate_data((j), &(data), &(l))) > 0; )
|