Mercurial > hg > nginx-quic
view src/core/ngx_log.h @ 6755:e2f13011343e stable-1.10
HTTP/2: fixed the "http request count is zero" alert.
When the stream is terminated the HEADERS frame can still wait in the output
queue. This frame can't be removed and must be sent to the client anyway,
since HTTP/2 uses stateful compression for headers. So in order to postpone
closing and freeing memory of such stream the special close stream handler
is set to the write event. After the HEADERS frame is sent the write event
is called and the stream will be finally closed.
Some events like receiving a RST_STREAM can trigger the read handler of such
stream in closing state and cause unexpected processing that can result in
another attempt to finalize the request. To prevent it the read handler is
now set to ngx_http_empty_handler.
Thanks to Amazon.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Thu, 16 Jun 2016 20:55:11 +0300 |
parents | 4b420f9c4c5d |
children | f18db38a9826 |
line wrap: on
line source
/* * 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_ */