Mercurial > hg > nginx-quic
view src/os/win32/ngx_errno.h @ 6536:f7849bfb6d21
Improved EPOLLRDHUP handling.
When it's known that the kernel supports EPOLLRDHUP, there is no need in
additional recv() call to get EOF or error when the flag is absent in the
event generated by the kernel. A special runtime test is done at startup
to detect if EPOLLRDHUP is actually supported by the kernel because
epoll_ctl() silently ignores unknown flags.
With this knowledge it's now possible to drop the "ready" flag for partial
read. Previously, the "ready" flag was kept until the recv() returned EOF
or error. In particular, this change allows the lingering close heuristics
(which relies on the "ready" flag state) to actually work on Linux, and not
wait for more data in most cases.
The "available" flag is now used in the read event with the semantics similar
to the corresponding counter in kqueue.
author | Valentin Bartenev <vbart@nginx.com> |
---|---|
date | Fri, 13 May 2016 17:19:23 +0300 |
parents | 7cdf612fd58c |
children |
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/* * Copyright (C) Igor Sysoev * Copyright (C) Nginx, Inc. */ #ifndef _NGX_ERRNO_H_INCLUDED_ #define _NGX_ERRNO_H_INCLUDED_ #include <ngx_config.h> #include <ngx_core.h> typedef DWORD ngx_err_t; #define ngx_errno GetLastError() #define ngx_set_errno(err) SetLastError(err) #define ngx_socket_errno WSAGetLastError() #define ngx_set_socket_errno(err) WSASetLastError(err) #define NGX_EPERM ERROR_ACCESS_DENIED #define NGX_ENOENT ERROR_FILE_NOT_FOUND #define NGX_ENOPATH ERROR_PATH_NOT_FOUND #define NGX_ENOMEM ERROR_NOT_ENOUGH_MEMORY #define NGX_EACCES ERROR_ACCESS_DENIED /* * there are two EEXIST error codes: * ERROR_FILE_EXISTS used by CreateFile(CREATE_NEW), * and ERROR_ALREADY_EXISTS used by CreateDirectory(); * MoveFile() uses both */ #define NGX_EEXIST ERROR_ALREADY_EXISTS #define NGX_EEXIST_FILE ERROR_FILE_EXISTS #define NGX_EXDEV ERROR_NOT_SAME_DEVICE #define NGX_ENOTDIR ERROR_PATH_NOT_FOUND #define NGX_EISDIR ERROR_CANNOT_MAKE #define NGX_ENOSPC ERROR_DISK_FULL #define NGX_EPIPE EPIPE #define NGX_EAGAIN WSAEWOULDBLOCK #define NGX_EINPROGRESS WSAEINPROGRESS #define NGX_ENOPROTOOPT WSAENOPROTOOPT #define NGX_EOPNOTSUPP WSAEOPNOTSUPP #define NGX_EADDRINUSE WSAEADDRINUSE #define NGX_ECONNABORTED WSAECONNABORTED #define NGX_ECONNRESET WSAECONNRESET #define NGX_ENOTCONN WSAENOTCONN #define NGX_ETIMEDOUT WSAETIMEDOUT #define NGX_ECONNREFUSED WSAECONNREFUSED #define NGX_ENAMETOOLONG ERROR_BAD_PATHNAME #define NGX_ENETDOWN WSAENETDOWN #define NGX_ENETUNREACH WSAENETUNREACH #define NGX_EHOSTDOWN WSAEHOSTDOWN #define NGX_EHOSTUNREACH WSAEHOSTUNREACH #define NGX_ENOMOREFILES ERROR_NO_MORE_FILES #define NGX_EILSEQ ERROR_NO_UNICODE_TRANSLATION #define NGX_ELOOP 0 #define NGX_EBADF WSAEBADF #define NGX_EALREADY WSAEALREADY #define NGX_EINVAL WSAEINVAL #define NGX_EMFILE WSAEMFILE #define NGX_ENFILE WSAEMFILE u_char *ngx_strerror(ngx_err_t err, u_char *errstr, size_t size); ngx_int_t ngx_strerror_init(void); #endif /* _NGX_ERRNO_H_INCLUDED_ */