view src/os/win32/ngx_errno.h @ 9299:2706b60dc225 default tip

Core: error logging rate limiting. With this change, error logging to files can be rate-limited with the "rate=" parameter. The parameter specifies allowed log messages rate to a particular file (per worker), in messages per second (m/s). By default, "rate=1000m/s" is used. Rate limiting is implemented using the "leaky bucket" method, similarly to the limit_req module. Maximum burst size is set to the number of log messages per second for each severity level, so "error" messages are logged even if the rate limit is hit by "info" messages (but not vice versa). When the limit is reached for a particular level, the "too many log messages, limiting" message is logged at this level. If debug logging is enabled, either for the particular log file or for the particular connection, rate limiting is not used.
author Maxim Dounin <mdounin@mdounin.ru>
date Tue, 25 Jun 2024 22:58:56 +0300
parents 37ef53ecd6b0
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_EMSGSIZE               WSAEMSGSIZE
#define NGX_ENOBUFS                WSAENOBUFS

#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_ */