/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_LOG_H_INCLUDED_ #define _NGX_LOG_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #define NGX_LOG_STDERR … #define NGX_LOG_EMERG … #define NGX_LOG_ALERT … #define NGX_LOG_CRIT … #define NGX_LOG_ERR … #define NGX_LOG_WARN … #define NGX_LOG_NOTICE … #define NGX_LOG_INFO … #define NGX_LOG_DEBUG … #define NGX_LOG_DEBUG_CORE … #define NGX_LOG_DEBUG_ALLOC … #define NGX_LOG_DEBUG_MUTEX … #define NGX_LOG_DEBUG_EVENT … #define NGX_LOG_DEBUG_HTTP … #define NGX_LOG_DEBUG_MAIL … #define NGX_LOG_DEBUG_STREAM … /* * do not forget to update debug_levels[] in src/core/ngx_log.c * after the adding a new debug level */ #define NGX_LOG_DEBUG_FIRST … #define NGX_LOG_DEBUG_LAST … #define NGX_LOG_DEBUG_CONNECTION … #define NGX_LOG_DEBUG_ALL … ngx_log_handler_pt; ngx_log_writer_pt; struct ngx_log_s { … }; #define NGX_MAX_ERROR_STR … /*********************************/ #if (NGX_HAVE_C99_VARIADIC_MACROS) #define NGX_HAVE_VARIADIC_MACROS … #define ngx_log_error(level, log, ...) … void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...); #define ngx_log_debug(level, log, ...) … /*********************************/ #elif (NGX_HAVE_GCC_VARIADIC_MACROS) #define NGX_HAVE_VARIADIC_MACROS … #define ngx_log_error … void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...); #define ngx_log_debug … /*********************************/ #else /* no variadic macros */ #define NGX_HAVE_VARIADIC_MACROS … void ngx_cdecl ngx_log_error(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, ...); void ngx_log_error_core(ngx_uint_t level, ngx_log_t *log, ngx_err_t err, const char *fmt, va_list args); void ngx_cdecl ngx_log_debug_core(ngx_log_t *log, ngx_err_t err, const char *fmt, ...); #endif /* variadic macros */ /*********************************/ #if (NGX_DEBUG) #if (NGX_HAVE_VARIADIC_MACROS) #define ngx_log_debug0 … #define ngx_log_debug1 … #define ngx_log_debug2 … #define ngx_log_debug3 … #define ngx_log_debug4 … #define ngx_log_debug5 … #define ngx_log_debug6 … #define ngx_log_debug7 … #define ngx_log_debug8 … #else /* no variadic macros */ #define ngx_log_debug0 … #define ngx_log_debug1 … #define ngx_log_debug2 … #define ngx_log_debug3 … #define ngx_log_debug4 … #define ngx_log_debug5 … #define ngx_log_debug6 … #define ngx_log_debug7 … #define ngx_log_debug8 … #endif #else /* !NGX_DEBUG */ #define ngx_log_debug0(level, log, err, fmt) … #define ngx_log_debug1(level, log, err, fmt, arg1) … #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) … #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) … #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) … #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) … #define ngx_log_debug6(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6) … #define ngx_log_debug7(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, \ arg6, arg7) … #define ngx_log_debug8(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5, \ arg6, arg7, arg8) … #endif /*********************************/ ngx_log_t *ngx_log_init(u_char *prefix, u_char *error_log); void ngx_cdecl ngx_log_abort(ngx_err_t err, const char *fmt, ...); void ngx_cdecl ngx_log_stderr(ngx_err_t err, const char *fmt, ...); u_char *ngx_log_errno(u_char *buf, u_char *last, ngx_err_t err); ngx_int_t ngx_log_open_default(ngx_cycle_t *cycle); ngx_int_t ngx_log_redirect_stderr(ngx_cycle_t *cycle); ngx_log_t *ngx_log_get_file_log(ngx_log_t *head); char *ngx_log_set_log(ngx_conf_t *cf, ngx_log_t **head); /* * ngx_write_stderr() cannot be implemented as macro, since * MSVC does not allow to use #ifdef inside macro parameters. * * ngx_write_fd() is used instead of ngx_write_console(), since * CharToOemBuff() inside ngx_write_console() cannot be used with * read only buffer as destination and CharToOemBuff() is not needed * for ngx_write_stderr() anyway. */ static ngx_inline void ngx_write_stderr(char *text) { … } static ngx_inline void ngx_write_stdout(char *text) { … } extern ngx_module_t ngx_errlog_module; extern ngx_uint_t ngx_use_stderr; #endif /* _NGX_LOG_H_INCLUDED_ */
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