nginx http 处理流程

ngx_epoll_process_events

epoll_wait

rev->handler(rev);

ngx_event_accept

ls->handler(c);

ngx_http_init_connection

rev->handler = ngx_http_wait_request_handler;

goto ngx_epoll_process_events

ngx_http_wait_request_handler

c->data = ngx_http_create_request(c);

rev->handler = ngx_http_process_request_line; ngx_http_process_request_line(rev);

n = ngx_http_read_request_header(r);

ngx_http_process_request_uri

rev->handler = ngx_http_process_request_headers; ngx_http_process_request_headers(rev);

loop

ngx_http_read_request_header

ngx_http_parse_header_line

ngx_http_process_request_header

ngx_http_process_request

ngx_http_handler

r->write_event_handler = ngx_http_core_run_phases; ngx_http_core_run_phases(r);

ngx_http_run_posted_requests