Systemd/src/journal/journal-internal.h
Lennart Poettering 14bf2c9d37 util: allow trailing semicolons on define_trivial_cleanup_func lines
Emacs C indenting really gets confused by these lines if they carry no
trailing semicolon, hence let's make this nicer for good old emacs. The
other macros which define functions already do this too, so let's copy
the scheme here.

Also, let's use an uppercase name for the macro. So far our rough rule
was that macros that are totally not function-like (like this ones,
which define a function) are uppercase. (Well, admittedly it is a rough
rule only, for example function and variable decorators are all
lower-case SINCE THE CONSTANT YELLING IN THE SOURCES WOULD SUCK, and
also they at least got underscore prefixes.) Also, the macros that
define functions that we already have are all uppercase, so let's do the
same here...
2013-10-14 06:11:19 +02:00

143 lines
3.3 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);
DEFINE_TRIVIAL_CLEANUP_FUNC(sd_journal*, sd_journal_close);
#define _cleanup_journal_close_ _cleanup_(sd_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; )