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/* SPDX-License-Identifier: GPL-3.0-or-later */
/*
* Copyright (C) 2018 - David Oberhollenzer
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
#ifndef LOGFILE_H
#define LOGFILE_H
#include "proto.h"
enum {
/*
Rotate log data in a way that we still generate a continuous stream
of log data. E.g. in the case of log files, move the current log file
to one suffixed with a timestamp. We don't lose any log data.
*/
LOG_ROTATE_CONTINUOUS = 0x00,
/*
Rotate log data by overwriting old data with more recent data.
E.g. in the case of log files, move the current log file to one
with a constant prefix, overwriting any existing data.
*/
LOG_ROTATE_OVERWRITE = 0x01,
/*
Automatically do a log rotatation if a log stream reaches a preset
size limit.
*/
LOG_ROTATE_SIZE_LIMIT = 0x10,
};
typedef struct log_backend_t {
int (*init)(struct log_backend_t *log, int flags, size_t sizelimit);
void (*cleanup)(struct log_backend_t *log);
int (*write)(struct log_backend_t *log, const syslog_msg_t *msg);
void (*rotate)(struct log_backend_t *log);
} log_backend_t;
extern log_backend_t *logmgr;
#endif /* LOGFILE_H */
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