161 lines
6.5 KiB
C
161 lines
6.5 KiB
C
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/*
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* Copyright (C) Igor Sysoev
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* Copyright (C) NGINX, Inc.
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*/
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#ifndef _NXT_LOG_H_INCLUDED_
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#define _NXT_LOG_H_INCLUDED_
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#define NXT_LOG_EMERG 0
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#define NXT_LOG_ALERT 1
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#define NXT_LOG_CRIT 2
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#define NXT_LOG_ERR 3
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#define NXT_LOG_WARN 4
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#define NXT_LOG_NOTICE 5
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#define NXT_LOG_INFO 6
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#define NXT_LOG_DEBUG 7
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#define NXT_MAX_ERROR_STR 2048
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typedef void nxt_cdecl (*nxt_log_handler_t)(nxt_uint_t level, nxt_log_t *log,
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const char *fmt, ...);
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typedef u_char *(*nxt_log_ctx_handler_t)(void *ctx, u_char *pos, u_char *end);
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struct nxt_log_s {
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uint32_t level;
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uint32_t ident;
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nxt_log_handler_t handler;
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nxt_log_ctx_handler_t ctx_handler;
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void *ctx;
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};
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NXT_EXPORT void nxt_log_start(const char *name);
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NXT_EXPORT nxt_log_t *nxt_log_set_ctx(nxt_log_t *log,
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nxt_log_ctx_handler_t handler, void *ctx);
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NXT_EXPORT void nxt_cdecl nxt_log_handler(nxt_uint_t level, nxt_log_t *log,
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const char *fmt, ...);
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#define \
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nxt_log_level_enough(log, level) \
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((log)->level >= (level))
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#define \
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nxt_log_emerg(_log, ...) \
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do { \
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nxt_log_t *_log_ = (_log); \
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\
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_log_->handler(NXT_LOG_EMERG, _log_, __VA_ARGS__); \
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} while (0)
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#define \
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nxt_log_alert(_log, ...) \
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do { \
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nxt_log_t *_log_ = (_log); \
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\
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_log_->handler(NXT_LOG_ALERT, _log_, __VA_ARGS__); \
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} while (0)
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#define nxt_log(task, _level, ...) \
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do { \
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nxt_log_t *log = (task)->log; \
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nxt_uint_t _level_ = (_level); \
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\
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if (nxt_slow_path(log->level >= _level_)) { \
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log->handler(_level_, log, __VA_ARGS__); \
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} \
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} while (0)
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#define nxt_trace(task, ...) \
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do { \
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nxt_log_t *log = (task)->log; \
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\
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if (nxt_slow_path(log->level >= NXT_LOG_NOTICE || nxt_trace)) { \
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log->handler(NXT_LOG_NOTICE, log, __VA_ARGS__); \
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} \
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} while (0)
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#define \
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nxt_log_error(_level, _log, ...) \
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do { \
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nxt_log_t *_log_ = (_log); \
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nxt_uint_t _level_ = (_level); \
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\
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if (nxt_slow_path(_log_->level >= _level_)) { \
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_log_->handler(_level_, _log_, __VA_ARGS__); \
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} \
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} while (0)
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#if (NXT_DEBUG)
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#define nxt_debug(task, ...) \
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do { \
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nxt_log_t *log = (task)->log; \
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\
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if (nxt_slow_path(log->level == NXT_LOG_DEBUG || nxt_debug)) { \
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log->handler(NXT_LOG_DEBUG, log, __VA_ARGS__); \
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} \
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} while (0)
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#define \
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nxt_log_debug(_log, ...) \
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do { \
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nxt_log_t *_log_ = (_log); \
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\
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if (nxt_slow_path(_log_->level == NXT_LOG_DEBUG || nxt_debug)) { \
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_log_->handler(NXT_LOG_DEBUG, _log_, __VA_ARGS__); \
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} \
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} while (0)
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#else
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#define nxt_debug(...)
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#define \
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nxt_log_debug(...)
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#endif
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#define \
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nxt_main_log_emerg(...) \
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nxt_log_emerg(&nxt_main_log, __VA_ARGS__)
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#define \
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nxt_main_log_alert(...) \
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nxt_log_alert(&nxt_main_log, __VA_ARGS__)
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#define \
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nxt_main_log_error(level, ...) \
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nxt_log_error(level, &nxt_main_log, __VA_ARGS__)
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#define \
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nxt_main_log_debug(...) \
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nxt_log_debug(&nxt_main_log, __VA_ARGS__)
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NXT_EXPORT extern nxt_uint_t nxt_debug;
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NXT_EXPORT extern nxt_uint_t nxt_trace;
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NXT_EXPORT extern nxt_log_t nxt_main_log;
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NXT_EXPORT extern nxt_str_t nxt_log_levels[];
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#endif /* _NXT_LOG_H_INCLUDED_ */
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