summaryrefslogtreecommitdiff
path: root/src/libsystemd/libsystemd-journal-internal/journal-internal.h
diff options
context:
space:
mode:
Diffstat (limited to 'src/libsystemd/libsystemd-journal-internal/journal-internal.h')
-rw-r--r--src/libsystemd/libsystemd-journal-internal/journal-internal.h140
1 files changed, 140 insertions, 0 deletions
diff --git a/src/libsystemd/libsystemd-journal-internal/journal-internal.h b/src/libsystemd/libsystemd-journal-internal/journal-internal.h
new file mode 100644
index 0000000000..8f21544ae1
--- /dev/null
+++ b/src/libsystemd/libsystemd-journal-internal/journal-internal.h
@@ -0,0 +1,140 @@
+#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 "hashmap.h"
+#include "journal-def.h"
+#include "journal-file.h"
+#include "list.h"
+#include "set.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 {
+ 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 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; )