diff options
Diffstat (limited to 'app/nginx/src/core/ngx_log.h')
| -rw-r--r-- | app/nginx/src/core/ngx_log.h | 268 |
1 files changed, 268 insertions, 0 deletions
diff --git a/app/nginx/src/core/ngx_log.h b/app/nginx/src/core/ngx_log.h new file mode 100644 index 0000000..afb73bf --- /dev/null +++ b/app/nginx/src/core/ngx_log.h @@ -0,0 +1,268 @@ + +/* + * 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_STREAM 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_STREAM +#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); +typedef void (*ngx_log_writer_pt) (ngx_log_t *log, ngx_uint_t level, + 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; + + time_t disk_full_time; + + ngx_log_handler_pt handler; + void *data; + + ngx_log_writer_pt writer; + void *wdata; + + /* + * 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 /* !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); +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) +{ + (void) ngx_write_fd(ngx_stderr, text, ngx_strlen(text)); +} + + +static ngx_inline void +ngx_write_stdout(char *text) +{ + (void) ngx_write_fd(ngx_stdout, text, ngx_strlen(text)); +} + + +extern ngx_module_t ngx_errlog_module; +extern ngx_uint_t ngx_use_stderr; + + +#endif /* _NGX_LOG_H_INCLUDED_ */ |