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29e4fc5607
- Add more fine grained control over how log rotation is supposed to behave - Add command line option processing to usyslogd - Expose log rotation control via command line switches - Add default values to usyslogd service for pygos use case Signed-off-by: David Oberhollenzer <david.oberhollenzer@tele2.at>
59 lines
1.7 KiB
C
59 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-3.0-or-later */
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/*
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* Copyright (C) 2018 - David Oberhollenzer
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef LOGFILE_H
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#define LOGFILE_H
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#include "proto.h"
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enum {
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/*
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Rotate log data in a way that we still generate a continuous stream
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of log data. E.g. in the case of log files, move the current log file
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to one suffixed with a timestamp. We don't lose any log data.
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*/
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LOG_ROTATE_CONTINUOUS = 0x00,
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/*
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Rotate log data by overwriting old data with more recent data.
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E.g. in the case of log files, move the current log file to one
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with a constant prefix, overwriting any existing data.
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*/
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LOG_ROTATE_OVERWRITE = 0x01,
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/*
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Automatically do a log rotatation if a log stream reaches a preset
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size limit.
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*/
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LOG_ROTATE_SIZE_LIMIT = 0x10,
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};
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typedef struct log_backend_t {
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int (*init)(struct log_backend_t *log, int flags, size_t sizelimit);
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void (*cleanup)(struct log_backend_t *log);
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int (*write)(struct log_backend_t *log, const syslog_msg_t *msg);
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void (*rotate)(struct log_backend_t *log);
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} log_backend_t;
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extern log_backend_t *logmgr;
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#endif /* LOGFILE_H */
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