view src/os/win32/ngx_errno.h @ 7892:2096b21fcd10

gRPC: RST_STREAM(NO_ERROR) handling (ticket #1792). As per https://tools.ietf.org/html/rfc7540#section-8.1, : A server can send a complete response prior to the client : sending an entire request if the response does not depend on : any portion of the request that has not been sent and : received. When this is true, a server MAY request that the : client abort transmission of a request without error by : sending a RST_STREAM with an error code of NO_ERROR after : sending a complete response (i.e., a frame with the : END_STREAM flag). Clients MUST NOT discard responses as a : result of receiving such a RST_STREAM, though clients can : always discard responses at their discretion for other : reasons. Previously, RST_STREAM(NO_ERROR) received from upstream after a frame with the END_STREAM flag was incorrectly treated as an error. Now, a single RST_STREAM(NO_ERROR) is properly handled. This fixes problems observed with modern grpc-c [1], as well as with the Go gRPC module. [1] https://github.com/grpc/grpc/pull/1661
author Ruslan Ermilov <ru@nginx.com>
date Thu, 23 Apr 2020 15:10:24 +0300
parents 7cdf612fd58c
children
line wrap: on
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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_ */