Systemd/src/basic/journal-importer.h
Zbigniew Jędrzejewski-Szmek c0b6ada757 journal-remote: parse the _BOOT_ID field and use the value when writing entries
The boot id is stored twice, and different code paths use either one or the
other. So we need to store it both in the header and as a field for full
compatibility.
2018-05-31 14:32:39 +02:00

62 lines
1.7 KiB
C

/* SPDX-License-Identifier: LGPL-2.1+ */
/***
This file is part of systemd.
Copyright 2016 Zbigniew Jędrzejewski-Szmek
***/
#pragma once
#include <stddef.h>
#include <stdbool.h>
#include <sys/uio.h>
#include "sd-id128.h"
#include "time-util.h"
/* Make sure not to make this smaller than the maximum coredump size.
* See COREDUMP_MAX in coredump.c */
#define ENTRY_SIZE_MAX (1024*1024*770u)
#define DATA_SIZE_MAX (1024*1024*768u)
#define LINE_CHUNK 8*1024u
struct iovec_wrapper {
struct iovec *iovec;
size_t size_bytes;
size_t count;
};
size_t iovw_size(struct iovec_wrapper *iovw);
typedef struct JournalImporter {
int fd;
bool passive_fd;
char *name;
char *buf;
size_t size; /* total size of the buffer */
size_t offset; /* offset to the beginning of live data in the buffer */
size_t scanned; /* number of bytes since the beginning of data without a newline */
size_t filled; /* total number of bytes in the buffer */
size_t field_len; /* used for binary fields: the field name length */
size_t data_size; /* and the size of the binary data chunk being processed */
struct iovec_wrapper iovw;
int state;
dual_timestamp ts;
sd_id128_t boot_id;
} JournalImporter;
void journal_importer_cleanup(JournalImporter *);
int journal_importer_process_data(JournalImporter *);
int journal_importer_push_data(JournalImporter *, const char *data, size_t size);
void journal_importer_drop_iovw(JournalImporter *);
bool journal_importer_eof(const JournalImporter *);
static inline size_t journal_importer_bytes_remaining(const JournalImporter *imp) {
return imp->filled;
}