Mercurial > hg > nginx
view src/os/unix/ngx_os.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 | 3a50ccd94333 |
children | 56fc55e32f23 |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_OS_H_INCLUDED_ #define _NGX_OS_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #define NGX_IO_SENDFILE 1 typedef ssize_t (*ngx_recv_pt)(ngx_connection_t *c, u_char *buf, size_t size); typedef ssize_t (*ngx_recv_chain_pt)(ngx_connection_t *c, ngx_chain_t *in, off_t limit); typedef ssize_t (*ngx_send_pt)(ngx_connection_t *c, u_char *buf, size_t size); typedef ngx_chain_t *(*ngx_send_chain_pt)(ngx_connection_t *c, ngx_chain_t *in, off_t limit); typedef struct { ngx_recv_pt recv; ngx_recv_chain_pt recv_chain; ngx_recv_pt udp_recv; ngx_send_pt send; ngx_send_pt udp_send; ngx_send_chain_pt send_chain; ngx_uint_t flags; } ngx_os_io_t; ngx_int_t ngx_os_init(ngx_log_t *log); void ngx_os_status(ngx_log_t *log); ngx_int_t ngx_os_specific_init(ngx_log_t *log); void ngx_os_specific_status(ngx_log_t *log); ngx_int_t ngx_daemon(ngx_log_t *log); ngx_int_t ngx_os_signal_process(ngx_cycle_t *cycle, char *sig, ngx_pid_t pid); ssize_t ngx_unix_recv(ngx_connection_t *c, u_char *buf, size_t size); ssize_t ngx_readv_chain(ngx_connection_t *c, ngx_chain_t *entry, off_t limit); ssize_t ngx_udp_unix_recv(ngx_connection_t *c, u_char *buf, size_t size); ssize_t ngx_unix_send(ngx_connection_t *c, u_char *buf, size_t size); ngx_chain_t *ngx_writev_chain(ngx_connection_t *c, ngx_chain_t *in, off_t limit); ssize_t ngx_udp_unix_send(ngx_connection_t *c, u_char *buf, size_t size); #if (IOV_MAX > 64) #define NGX_IOVS_PREALLOCATE 64 #else #define NGX_IOVS_PREALLOCATE IOV_MAX #endif typedef struct { struct iovec *iovs; ngx_uint_t count; size_t size; ngx_uint_t nalloc; } ngx_iovec_t; ngx_chain_t *ngx_output_chain_to_iovec(ngx_iovec_t *vec, ngx_chain_t *in, size_t limit, ngx_log_t *log); ssize_t ngx_writev(ngx_connection_t *c, ngx_iovec_t *vec); extern ngx_os_io_t ngx_os_io; extern ngx_int_t ngx_ncpu; extern ngx_int_t ngx_max_sockets; extern ngx_uint_t ngx_inherited_nonblocking; extern ngx_uint_t ngx_tcp_nodelay_and_tcp_nopush; #if (NGX_FREEBSD) #include <ngx_freebsd.h> #elif (NGX_LINUX) #include <ngx_linux.h> #elif (NGX_SOLARIS) #include <ngx_solaris.h> #elif (NGX_DARWIN) #include <ngx_darwin.h> #endif #endif /* _NGX_OS_H_INCLUDED_ */