ngx_http_request_s

/* 
罗剑锋老师的注释参考：
https://github.com/chronolaw/annotated_nginx/blob/master/nginx/src/http/ngx_http_request.h
*/struct ngx_http_request_s {uint32_t                          signature;         /* "HTTP" */ngx_connection_t                 *connection;void                            **ctx;void                            **main_conf;void                            **srv_conf;void                            **loc_conf;ngx_http_event_handler_pt         read_event_handler;ngx_http_event_handler_pt         write_event_handler;#if (NGX_HTTP_CACHE)ngx_http_cache_t                 *cache;
#endifngx_http_upstream_t              *upstream;ngx_array_t                      *upstream_states;/* of ngx_http_upstream_state_t */ngx_pool_t                       *pool;ngx_buf_t                        *header_in;ngx_http_headers_in_t             headers_in;ngx_http_headers_out_t            headers_out;ngx_http_request_body_t          *request_body;time_t                            lingering_time;time_t                            start_sec;ngx_msec_t                        start_msec;ngx_uint_t                        method;ngx_uint_t                        http_version;ngx_str_t                         request_line;ngx_str_t                         uri;ngx_str_t                         args;ngx_str_t                         exten;ngx_str_t                         unparsed_uri;ngx_str_t                         method_name;ngx_str_t                         http_protocol;ngx_str_t                         schema;ngx_str_t                         charset;ngx_str_t						  cookie_self;ngx_str_t						  user_name;ngx_chain_t                      *out;ngx_http_request_t               *main;ngx_http_request_t               *parent;ngx_http_postponed_request_t     *postponed;ngx_http_post_subrequest_t       *post_subrequest;ngx_http_posted_request_t        *posted_requests;ngx_int_t                         phase_handler;ngx_http_handler_pt               content_handler;ngx_uint_t                        access_code;ngx_http_variable_value_t        *variables;#if (NGX_PCRE)ngx_uint_t                        ncaptures;int                              *captures;u_char                           *captures_data;
#endifsize_t                            limit_rate;size_t                            limit_rate_after;/* used to learn the Apache compatible response length without a header */size_t                            header_size;off_t                             request_length;ngx_uint_t                        err_status;ngx_http_connection_t            *http_connection;ngx_http_v2_stream_t             *stream;ngx_http_log_handler_pt           log_handler;ngx_http_cleanup_t               *cleanup;unsigned                          count:16;unsigned                          subrequests:8;unsigned                          blocked:8;unsigned                          aio:1;unsigned                          http_state:4;/* URI with "/." and on Win32 with "//" */unsigned                          complex_uri:1;/* URI with "%" */unsigned                          quoted_uri:1;/* URI with "+" */unsigned                          plus_in_uri:1;/* URI with empty path */unsigned                          empty_path_in_uri:1;unsigned                          invalid_header:1;unsigned                          add_uri_to_alias:1;unsigned                          valid_location:1;unsigned                          valid_unparsed_uri:1;unsigned                          uri_changed:1;unsigned                          uri_changes:4;unsigned                          request_body_in_single_buf:1;unsigned                          request_body_in_file_only:1;unsigned                          request_body_in_persistent_file:1;unsigned                          request_body_in_clean_file:1;unsigned                          request_body_file_group_access:1;unsigned                          request_body_file_log_level:3;unsigned                          request_body_no_buffering:1;unsigned                          subrequest_in_memory:1;unsigned                          waited:1;#if (NGX_HTTP_CACHE)unsigned                          cached:1;
#endif#if (NGX_HTTP_GZIP)unsigned                          gzip_tested:1;unsigned                          gzip_ok:1;unsigned                          gzip_vary:1;
#endif#if (NGX_PCRE)unsigned                          realloc_captures:1;
#endifunsigned                          proxy:1;unsigned                          bypass_cache:1;unsigned                          no_cache:1;/** instead of using the request context data in* ngx_http_limit_conn_module and ngx_http_limit_req_module* we use the bit fields in the request structure*/unsigned                          limit_conn_status:2;unsigned                          limit_req_status:3;unsigned                          limit_rate_set:1;unsigned                          limit_rate_after_set:1;#if 0unsigned                          cacheable:1;
#endifunsigned                          pipeline:1;unsigned                          chunked:1;unsigned                          header_only:1;unsigned                          expect_trailers:1;unsigned                          keepalive:1;unsigned                          lingering_close:1;unsigned                          discard_body:1;unsigned                          reading_body:1;unsigned                          internal:1;unsigned                          error_page:1;unsigned                          filter_finalize:1;unsigned                          post_action:1;unsigned                          request_complete:1;unsigned                          request_output:1;unsigned                          header_sent:1;unsigned                          expect_tested:1;unsigned                          root_tested:1;unsigned                          done:1;unsigned                          logged:1;unsigned                          buffered:4;unsigned                          main_filter_need_in_memory:1;unsigned                          filter_need_in_memory:1;unsigned                          filter_need_temporary:1;unsigned                          preserve_body:1;unsigned                          allow_ranges:1;unsigned                          subrequest_ranges:1;unsigned                          single_range:1;unsigned                          disable_not_modified:1;unsigned                          stat_reading:1;unsigned                          stat_writing:1;unsigned                          stat_processing:1;unsigned                          background:1;unsigned                          health_check:1;/* used to parse HTTP headers */ngx_uint_t                        state;ngx_uint_t                        header_hash;ngx_uint_t                        lowcase_index;u_char                            lowcase_header[NGX_HTTP_LC_HEADER_LEN];u_char                           *header_name_start;u_char                           *header_name_end;u_char                           *header_start;u_char                           *header_end;/** a memory that can be reused after parsing a request line* via ngx_http_ephemeral_t*/u_char                           *uri_start;u_char                           *uri_end;u_char                           *uri_ext;u_char                           *args_start;u_char                           *request_start;u_char                           *request_end;u_char                           *method_end;u_char                           *schema_start;u_char                           *schema_end;u_char                           *host_start;u_char                           *host_end;u_char                           *port_start;u_char                           *port_end;unsigned                          http_minor:16;unsigned                          http_major:16;
};

ngx_http_headers_out_t 

/* 
罗剑锋老师的注释参考：
https://github.com/chronolaw/annotated_nginx/blob/master/nginx/src/http/ngx_http_request.h
*/typedef struct {ngx_list_t                        headers;ngx_list_t                        trailers;ngx_uint_t                        status;ngx_str_t                         status_line;ngx_table_elt_t                  *server;ngx_table_elt_t                  *date;ngx_table_elt_t                  *content_length;ngx_table_elt_t                  *content_encoding;ngx_table_elt_t                  *location;ngx_table_elt_t                  *refresh;ngx_table_elt_t                  *last_modified;ngx_table_elt_t                  *content_range;ngx_table_elt_t                  *accept_ranges;ngx_table_elt_t                  *www_authenticate;ngx_table_elt_t                  *expires;ngx_table_elt_t                  *etag;ngx_str_t                        *override_charset;size_t                            content_type_len;ngx_str_t                         content_type;ngx_str_t                         charset;u_char                           *content_type_lowcase;ngx_uint_t                        content_type_hash;ngx_array_t                       cache_control;ngx_array_t                       link;off_t                             content_length_n;off_t                             content_offset;time_t                            date_time;time_t                            last_modified_time;
} ngx_http_headers_out_t;

ngx_list_t

typedef struct {ngx_list_part_t  *last;ngx_list_part_t   part;size_t            size;ngx_uint_t        nalloc;ngx_pool_t       *pool;
} ngx_list_t;