| |
| /* |
| * 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 0 |
| #define NGX_LOG_EMERG 1 |
| #define NGX_LOG_ALERT 2 |
| #define NGX_LOG_CRIT 3 |
| #define NGX_LOG_ERR 4 |
| #define NGX_LOG_WARN 5 |
| #define NGX_LOG_NOTICE 6 |
| #define NGX_LOG_INFO 7 |
| #define NGX_LOG_DEBUG 8 |
| |
| #define NGX_LOG_DEBUG_CORE 0x010 |
| #define NGX_LOG_DEBUG_ALLOC 0x020 |
| #define NGX_LOG_DEBUG_MUTEX 0x040 |
| #define NGX_LOG_DEBUG_EVENT 0x080 |
| #define NGX_LOG_DEBUG_HTTP 0x100 |
| #define NGX_LOG_DEBUG_MAIL 0x200 |
| #define NGX_LOG_DEBUG_MYSQL 0x400 |
| |
| /* |
| * 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 NGX_LOG_DEBUG_CORE |
| #define NGX_LOG_DEBUG_LAST NGX_LOG_DEBUG_MYSQL |
| #define NGX_LOG_DEBUG_CONNECTION 0x80000000 |
| #define NGX_LOG_DEBUG_ALL 0x7ffffff0 |
| |
| |
| typedef u_char *(*ngx_log_handler_pt) (ngx_log_t *log, u_char *buf, size_t len); |
| |
| |
| struct ngx_log_s { |
| ngx_uint_t log_level; |
| ngx_open_file_t *file; |
| |
| ngx_atomic_uint_t connection; |
| |
| ngx_log_handler_pt handler; |
| void *data; |
| |
| /* |
| * we declare "action" as "char *" because the actions are usually |
| * the static strings and in the "u_char *" case we have to override |
| * their types all the time |
| */ |
| |
| char *action; |
| |
| ngx_log_t *next; |
| }; |
| |
| |
| #define NGX_MAX_ERROR_STR 2048 |
| |
| |
| /*********************************/ |
| |
| #if (NGX_HAVE_C99_VARIADIC_MACROS) |
| |
| #define NGX_HAVE_VARIADIC_MACROS 1 |
| |
| #define ngx_log_error(level, log, ...) \ |
| if ((log)->log_level >= level) ngx_log_error_core(level, log, __VA_ARGS__) |
| |
| 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, ...) \ |
| if ((log)->log_level & level) \ |
| ngx_log_error_core(NGX_LOG_DEBUG, log, __VA_ARGS__) |
| |
| /*********************************/ |
| |
| #elif (NGX_HAVE_GCC_VARIADIC_MACROS) |
| |
| #define NGX_HAVE_VARIADIC_MACROS 1 |
| |
| #define ngx_log_error(level, log, args...) \ |
| if ((log)->log_level >= level) ngx_log_error_core(level, log, args) |
| |
| 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, args...) \ |
| if ((log)->log_level & level) \ |
| ngx_log_error_core(NGX_LOG_DEBUG, log, args) |
| |
| /*********************************/ |
| |
| #else /* NO VARIADIC MACROS */ |
| |
| #define NGX_HAVE_VARIADIC_MACROS 0 |
| |
| 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(level, log, err, fmt) \ |
| ngx_log_debug(level, log, err, fmt) |
| |
| #define ngx_log_debug1(level, log, err, fmt, arg1) \ |
| ngx_log_debug(level, log, err, fmt, arg1) |
| |
| #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \ |
| ngx_log_debug(level, log, err, fmt, arg1, arg2) |
| |
| #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \ |
| ngx_log_debug(level, log, err, fmt, arg1, arg2, arg3) |
| |
| #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \ |
| ngx_log_debug(level, log, err, fmt, arg1, arg2, arg3, arg4) |
| |
| #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \ |
| ngx_log_debug(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) |
| |
| #define ngx_log_debug6(level, log, err, fmt, \ |
| arg1, arg2, arg3, arg4, arg5, arg6) \ |
| ngx_log_debug(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) \ |
| ngx_log_debug(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) \ |
| ngx_log_debug(level, log, err, fmt, \ |
| arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) |
| |
| |
| #else /* NO VARIADIC MACROS */ |
| |
| #define ngx_log_debug0(level, log, err, fmt) \ |
| if ((log)->log_level & level) \ |
| ngx_log_debug_core(log, err, fmt) |
| |
| #define ngx_log_debug1(level, log, err, fmt, arg1) \ |
| if ((log)->log_level & level) \ |
| ngx_log_debug_core(log, err, fmt, arg1) |
| |
| #define ngx_log_debug2(level, log, err, fmt, arg1, arg2) \ |
| if ((log)->log_level & level) \ |
| ngx_log_debug_core(log, err, fmt, arg1, arg2) |
| |
| #define ngx_log_debug3(level, log, err, fmt, arg1, arg2, arg3) \ |
| if ((log)->log_level & level) \ |
| ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3) |
| |
| #define ngx_log_debug4(level, log, err, fmt, arg1, arg2, arg3, arg4) \ |
| if ((log)->log_level & level) \ |
| ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4) |
| |
| #define ngx_log_debug5(level, log, err, fmt, arg1, arg2, arg3, arg4, arg5) \ |
| if ((log)->log_level & level) \ |
| ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5) |
| |
| #define ngx_log_debug6(level, log, err, fmt, \ |
| arg1, arg2, arg3, arg4, arg5, arg6) \ |
| if ((log)->log_level & level) \ |
| ngx_log_debug_core(log, err, fmt, arg1, arg2, arg3, arg4, arg5, arg6) |
| |
| #define ngx_log_debug7(level, log, err, fmt, \ |
| arg1, arg2, arg3, arg4, arg5, arg6, arg7) \ |
| if ((log)->log_level & level) \ |
| ngx_log_debug_core(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) \ |
| if ((log)->log_level & level) \ |
| ngx_log_debug_core(log, err, fmt, \ |
| arg1, arg2, arg3, arg4, arg5, arg6, arg7, arg8) |
| |
| #endif |
| |
| #else /* NO 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); |
| 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); |
| 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) |
| { |
| (void) ngx_write_fd(ngx_stderr, text, strlen(text)); |
| } |
| |
| |
| extern ngx_module_t ngx_errlog_module; |
| extern ngx_uint_t ngx_use_stderr; |
| |
| |
| #endif /* _NGX_LOG_H_INCLUDED_ */ |