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https://github.com/EnterpriseDB/repmgr.git
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ae84041a4e
There are a few places where additional hints are written as log output, usually LOG_NOTICE. Create an explicit function to provide hints in a standardized manner; by storing the log level of the previous logger call, we can ensure the hint is only displayed when the log message itself would be. Part of an ongoing effort to better control repmgr's logging output.
128 lines
3.9 KiB
C
128 lines
3.9 KiB
C
/*
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* log.h
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* Copyright (c) 2ndQuadrant, 2010-2015
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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 <http://www.gnu.org/licenses/>.
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*
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*/
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#ifndef _REPMGR_LOG_H_
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#define _REPMGR_LOG_H_
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#include "repmgr.h"
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#define REPMGR_SYSLOG 1
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#define REPMGR_STDERR 2
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void
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stderr_log_with_level(const char *level_name, int level, const char *fmt,...)
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__attribute__((format(PG_PRINTF_ATTRIBUTE, 3, 4)));
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/* Standard error logging */
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#define stderr_log_debug(...) stderr_log_with_level("DEBUG", LOG_DEBUG, __VA_ARGS__)
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#define stderr_log_info(...) stderr_log_with_level("INFO", LOG_INFO, __VA_ARGS__)
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#define stderr_log_notice(...) stderr_log_with_level("NOTICE", LOG_NOTICE, __VA_ARGS__)
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#define stderr_log_warning(...) stderr_log_with_level("WARNING", LOG_WARNING, __VA_ARGS__)
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#define stderr_log_err(...) stderr_log_with_level("ERROR", LOG_ERR, __VA_ARGS__)
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#define stderr_log_crit(...) stderr_log_with_level("CRITICAL", LOG_CRIT, __VA_ARGS__)
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#define stderr_log_alert(...) stderr_log_with_level("ALERT", LOG_ALERT, __VA_ARGS__)
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#define stderr_log_emerg(...) stderr_log_with_level("EMERGENCY", LOG_EMERG, __VA_ARGS__)
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#ifdef HAVE_SYSLOG
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#include <syslog.h>
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#define log_debug(...) \
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if (log_type == REPMGR_SYSLOG) \
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syslog(LOG_DEBUG, __VA_ARGS__); \
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else \
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stderr_log_debug(__VA_ARGS__);
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#define log_info(...) \
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{ \
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if (log_type == REPMGR_SYSLOG) syslog(LOG_INFO, __VA_ARGS__); \
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else stderr_log_info(__VA_ARGS__); \
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}
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#define log_notice(...) \
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{ \
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if (log_type == REPMGR_SYSLOG) syslog(LOG_NOTICE, __VA_ARGS__); \
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else stderr_log_notice(__VA_ARGS__); \
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}
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#define log_warning(...) \
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{ \
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if (log_type == REPMGR_SYSLOG) syslog(LOG_WARNING, __VA_ARGS__); \
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else stderr_log_warning(__VA_ARGS__); \
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}
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#define log_err(...) \
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{ \
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if (log_type == REPMGR_SYSLOG) syslog(LOG_ERR, __VA_ARGS__); \
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else stderr_log_err(__VA_ARGS__); \
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}
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#define log_crit(...) \
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{ \
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if (log_type == REPMGR_SYSLOG) syslog(LOG_CRIT, __VA_ARGS__); \
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else stderr_log_crit(__VA_ARGS__); \
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}
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#define log_alert(...) \
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{ \
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if (log_type == REPMGR_SYSLOG) syslog(LOG_ALERT, __VA_ARGS__); \
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else stderr_log_alert(__VA_ARGS__); \
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}
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#define log_emerg(...) \
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{ \
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if (log_type == REPMGR_SYSLOG) syslog(LOG_ALERT, __VA_ARGS__); \
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else stderr_log_alert(__VA_ARGS__); \
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}
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#else
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#define LOG_EMERG 0 /* system is unusable */
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#define LOG_ALERT 1 /* action must be taken immediately */
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#define LOG_CRIT 2 /* critical conditions */
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#define LOG_ERR 3 /* error conditions */
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#define LOG_WARNING 4 /* warning conditions */
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#define LOG_NOTICE 5 /* normal but significant condition */
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#define LOG_INFO 6 /* informational */
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#define LOG_DEBUG 7 /* debug-level messages */
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#define log_debug(...) stderr_log_debug(__VA_ARGS__)
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#define log_info(...) stderr_log_info(__VA_ARGS__)
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#define log_notice(...) stderr_log_notice(__VA_ARGS__)
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#define log_warning(...) stderr_log_warning(__VA_ARGS__)
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#define log_err(...) stderr_log_err(__VA_ARGS__)
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#define log_crit(...) stderr_log_crit(__VA_ARGS__)
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#define log_alert(...) stderr_log_alert(__VA_ARGS__)
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#define log_emerg(...) stderr_log_emerg(__VA_ARGS__)
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#endif
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/* Logger initialisation and shutdown */
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bool logger_shutdown(void);
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bool logger_init(t_configuration_options * opts, const char *ident,
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const char *level, const char *facility);
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void logger_min_verbose(int minimum);
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void log_hint(const char *fmt, ...);
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extern int log_type;
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extern int log_level;
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#endif
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