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8ec569479f
Up until now, we've had a policy of only marking certain variables in the PostgreSQL header files with PGDLLIMPORT, but now we've decided to mark them all. This means that extensions running on Windows should no longer operate at a disadvantage as compared to extensions running on Linux: if the variable is present in a header file, it should be accessible. Discussion: http://postgr.es/m/CA+TgmoYanc1_FSfimhgiWSqVyP5KKmh5NP2BWNwDhO8Pg2vGYQ@mail.gmail.com
96 lines
2.5 KiB
C
96 lines
2.5 KiB
C
/*-------------------------------------------------------------------------
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* Logging framework for frontend programs
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*
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* Copyright (c) 2018-2022, PostgreSQL Global Development Group
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*
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* src/include/common/logging.h
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*
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*-------------------------------------------------------------------------
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*/
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#ifndef COMMON_LOGGING_H
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#define COMMON_LOGGING_H
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/*
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* Log levels are informational only. They do not affect program flow.
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*/
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enum pg_log_level
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{
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/*
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* Not initialized yet
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*/
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PG_LOG_NOTSET = 0,
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/*
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* Low level messages that are normally off by default.
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*/
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PG_LOG_DEBUG,
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/*
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* Any program messages that go to stderr, shown by default. (The
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* program's normal output should go to stdout and not use the logging
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* system.)
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*/
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PG_LOG_INFO,
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/*
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* Warnings and "almost" errors, depends on the program
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*/
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PG_LOG_WARNING,
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/*
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* Errors
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*/
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PG_LOG_ERROR,
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/*
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* Severe errors that cause program termination. (One-shot programs may
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* chose to label even fatal errors as merely "errors". The distinction
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* is up to the program.)
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*/
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PG_LOG_FATAL,
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/*
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* Turn all logging off.
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*/
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PG_LOG_OFF,
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};
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extern PGDLLIMPORT enum pg_log_level __pg_log_level;
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/*
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* Kind of a hack to be able to produce the psql output exactly as required by
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* the regression tests.
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*/
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#define PG_LOG_FLAG_TERSE 1
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void pg_logging_init(const char *argv0);
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void pg_logging_config(int new_flags);
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void pg_logging_set_level(enum pg_log_level new_level);
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void pg_logging_increase_verbosity(void);
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void pg_logging_set_pre_callback(void (*cb) (void));
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void pg_logging_set_locus_callback(void (*cb) (const char **filename, uint64 *lineno));
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void pg_log_generic(enum pg_log_level level, const char *pg_restrict fmt,...) pg_attribute_printf(2, 3);
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void pg_log_generic_v(enum pg_log_level level, const char *pg_restrict fmt, va_list ap) pg_attribute_printf(2, 0);
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#define pg_log_fatal(...) do { \
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if (likely(__pg_log_level <= PG_LOG_FATAL)) pg_log_generic(PG_LOG_FATAL, __VA_ARGS__); \
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} while(0)
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#define pg_log_error(...) do { \
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if (likely(__pg_log_level <= PG_LOG_ERROR)) pg_log_generic(PG_LOG_ERROR, __VA_ARGS__); \
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} while(0)
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#define pg_log_warning(...) do { \
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if (likely(__pg_log_level <= PG_LOG_WARNING)) pg_log_generic(PG_LOG_WARNING, __VA_ARGS__); \
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} while(0)
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#define pg_log_info(...) do { \
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if (likely(__pg_log_level <= PG_LOG_INFO)) pg_log_generic(PG_LOG_INFO, __VA_ARGS__); \
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} while(0)
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#define pg_log_debug(...) do { \
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if (unlikely(__pg_log_level <= PG_LOG_DEBUG)) pg_log_generic(PG_LOG_DEBUG, __VA_ARGS__); \
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} while(0)
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#endif /* COMMON_LOGGING_H */
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