mirror of
https://github.com/nginx/nginx.git
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119 lines
3.0 KiB
C
119 lines
3.0 KiB
C
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#ifndef _NGX_LOG_H_INCLUDED_
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#define _NGX_LOG_H_INCLUDED_
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#include <ngx_errno.h>
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typedef enum {
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NGX_LOG_EMERG = 0,
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NGX_LOG_ALERT,
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NGX_LOG_CRIT,
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NGX_LOG_ERR,
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NGX_LOG_WARN,
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NGX_LOG_NOTICE,
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NGX_LOG_INFO,
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NGX_LOG_DEBUG
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} ngx_log_e;
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/*
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"... while ", action = "reading client request headers"
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"... while reading client request headers"
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"... while ", action = "reading client request headers"
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context: pop3 user account
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"... while reading client command for 'john_doe'"
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*/
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typedef struct {
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int log_level;
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char *action;
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char *context;
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/* char *func(ngx_log_t *log); */
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} ngx_log_t;
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#define MAX_ERROR_STR 2048
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#define _ ,
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#if (HAVE_GCC_VARIADIC_MACROS)
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#define HAVE_VARIADIC_MACROS 1
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#define ngx_log_error(level, log, args...) \
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if (log->log_level >= level) ngx_log_error_core(level, log, args)
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#ifdef NGX_DEBUG
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#define ngx_log_debug(log, args...) \
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if (log->log_level == NGX_LOG_DEBUG) \
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ngx_log_error_core(NGX_LOG_DEBUG, log, 0, args)
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#else
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#define ngx_log_debug(log, args...)
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#endif
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#define ngx_assert(assert, fallback, log, args...) \
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if (!(assert)) { \
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if (log->log_level >= NGX_LOG_ALERT) \
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ngx_log_error_core(NGX_LOG_ALERT, log, 0, args); \
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fallback; \
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}
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void ngx_log_error_core(int level, ngx_log_t *log, ngx_err_t err,
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const char *fmt, ...);
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#elif (HAVE_C99_VARIADIC_MACROS)
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#define HAVE_VARIADIC_MACROS 1
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#define ngx_log_error(level, log, ...) \
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if (log->log_level >= level) ngx_log_error_core(level, log, __VA_ARGS__)
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#ifdef NGX_DEBUG
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#define ngx_log_debug(log, ...) \
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if (log->log_level == NGX_LOG_DEBUG) \
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ngx_log_error_core(NGX_LOG_DEBUG, log, 0, __VA_ARGS__)
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#else
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#define ngx_log_debug(log, ...)
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#endif
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#define ngx_assert(assert, fallback, log, ...) \
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if (!(assert)) { \
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if (log->log_level >= NGX_LOG_ALERT) \
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ngx_log_error_core(NGX_LOG_ALERT, log, 0, __VA_ARGS__); \
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fallback; \
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}
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void ngx_log_error_core(int level, ngx_log_t *log, ngx_err_t err,
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const char *fmt, ...);
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#else /* NO VARIADIC MACROS */
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#include <stdarg.h>
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#ifdef NGX_DEBUG
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#define ngx_log_debug(log, text) \
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if (log->log_level == NGX_LOG_DEBUG) \
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ngx_log_debug_core(log, text)
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#else
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#define ngx_log_debug(log, text)
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#endif
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#define ngx_assert(assert, fallback, log, text) \
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if (!(assert)) { \
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if (log->log_level >= NGX_LOG_ALERT) \
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ngx_assert_core(log, text); \
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fallback; \
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}
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void ngx_log_error(int level, ngx_log_t *log, ngx_err_t err,
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const char *fmt, ...);
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void ngx_log_error_core(int level, ngx_log_t *log, ngx_err_t err,
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const char *fmt, va_list args);
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void ngx_log_debug_core(ngx_log_t *log, const char *fmt, ...);
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void ngx_assert_core(ngx_log_t *log, const char *fmt, ...);
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#endif /* VARIADIC MACROS */
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#endif /* _NGX_LOG_H_INCLUDED_ */
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