Mercurial > hg > nginx-quic
view src/core/ngx_inet.h @ 7446:9234e8d61aa0
Win32: detection of connect() errors in select().
On Windows, connect() errors are only reported via exceptfds descriptor set
from select(). Previously exceptfds was set to NULL, and connect() errors
were not detected at all, so connects to closed ports were waiting till
a timeout occurred.
Since ongoing connect() means that there will be a write event active,
except descriptor set is copied from the write one. While it is possible
to construct except descriptor set as a concatenation of both read and write
descriptor sets, this looks unneeded.
With this change, connect() errors are properly detected now when using
select(). Note well that it is not possible to detect connect() errors with
WSAPoll() (see https://daniel.haxx.se/blog/2012/10/10/wsapoll-is-broken/).
author | Maxim Dounin <mdounin@mdounin.ru> |
---|---|
date | Thu, 24 Jan 2019 22:00:44 +0300 |
parents | beeac3302e45 |
children | 4f9b72a229c1 |
line wrap: on
line source
/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_INET_H_INCLUDED_ #define _NGX_INET_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> #define NGX_INET_ADDRSTRLEN (sizeof("255.255.255.255") - 1) #define NGX_INET6_ADDRSTRLEN \ (sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255") - 1) #define NGX_UNIX_ADDRSTRLEN \ (sizeof("unix:") - 1 + \ sizeof(struct sockaddr_un) - offsetof(struct sockaddr_un, sun_path)) #if (NGX_HAVE_UNIX_DOMAIN) #define NGX_SOCKADDR_STRLEN NGX_UNIX_ADDRSTRLEN #elif (NGX_HAVE_INET6) #define NGX_SOCKADDR_STRLEN (NGX_INET6_ADDRSTRLEN + sizeof("[]:65535") - 1) #else #define NGX_SOCKADDR_STRLEN (NGX_INET_ADDRSTRLEN + sizeof(":65535") - 1) #endif /* compatibility */ #define NGX_SOCKADDRLEN sizeof(ngx_sockaddr_t) typedef union { struct sockaddr sockaddr; struct sockaddr_in sockaddr_in; #if (NGX_HAVE_INET6) struct sockaddr_in6 sockaddr_in6; #endif #if (NGX_HAVE_UNIX_DOMAIN) struct sockaddr_un sockaddr_un; #endif } ngx_sockaddr_t; typedef struct { in_addr_t addr; in_addr_t mask; } ngx_in_cidr_t; #if (NGX_HAVE_INET6) typedef struct { struct in6_addr addr; struct in6_addr mask; } ngx_in6_cidr_t; #endif typedef struct { ngx_uint_t family; union { ngx_in_cidr_t in; #if (NGX_HAVE_INET6) ngx_in6_cidr_t in6; #endif } u; } ngx_cidr_t; typedef struct { struct sockaddr *sockaddr; socklen_t socklen; ngx_str_t name; } ngx_addr_t; typedef struct { ngx_str_t url; ngx_str_t host; ngx_str_t port_text; ngx_str_t uri; in_port_t port; in_port_t default_port; int family; unsigned listen:1; unsigned uri_part:1; unsigned no_resolve:1; unsigned no_port:1; unsigned wildcard:1; socklen_t socklen; ngx_sockaddr_t sockaddr; ngx_addr_t *addrs; ngx_uint_t naddrs; char *err; } ngx_url_t; in_addr_t ngx_inet_addr(u_char *text, size_t len); #if (NGX_HAVE_INET6) ngx_int_t ngx_inet6_addr(u_char *p, size_t len, u_char *addr); size_t ngx_inet6_ntop(u_char *p, u_char *text, size_t len); #endif size_t ngx_sock_ntop(struct sockaddr *sa, socklen_t socklen, u_char *text, size_t len, ngx_uint_t port); size_t ngx_inet_ntop(int family, void *addr, u_char *text, size_t len); ngx_int_t ngx_ptocidr(ngx_str_t *text, ngx_cidr_t *cidr); ngx_int_t ngx_cidr_match(struct sockaddr *sa, ngx_array_t *cidrs); ngx_int_t ngx_parse_addr(ngx_pool_t *pool, ngx_addr_t *addr, u_char *text, size_t len); ngx_int_t ngx_parse_addr_port(ngx_pool_t *pool, ngx_addr_t *addr, u_char *text, size_t len); ngx_int_t ngx_parse_url(ngx_pool_t *pool, ngx_url_t *u); ngx_int_t ngx_inet_resolve_host(ngx_pool_t *pool, ngx_url_t *u); ngx_int_t ngx_cmp_sockaddr(struct sockaddr *sa1, socklen_t slen1, struct sockaddr *sa2, socklen_t slen2, ngx_uint_t cmp_port); in_port_t ngx_inet_get_port(struct sockaddr *sa); void ngx_inet_set_port(struct sockaddr *sa, in_port_t port); #endif /* _NGX_INET_H_INCLUDED_ */