You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
202 lines
6.1 KiB
202 lines
6.1 KiB
5 months ago
|
/*
|
||
|
|
Copyright (c) 2016, 2017, Oracle and/or its affiliates. All rights reserved.
|
||
|
|
|
||
|
|
This program is free software; you can redistribute it and/or modify
|
||
|
|
it under the terms of the GNU General Public License, version 2.0,
|
||
|
|
as published by the Free Software Foundation.
|
||
|
|
|
||
|
|
This program is also distributed with certain software (including
|
||
|
|
but not limited to OpenSSL) that is licensed under separate terms,
|
||
|
|
as designated in a particular file or component or in included license
|
||
|
|
documentation. The authors of MySQL hereby grant you an additional
|
||
|
|
permission to link the program and your derivative works with the
|
||
|
|
separately licensed software that they have included with MySQL.
|
||
|
|
|
||
|
|
This program is distributed in the hope that it will be useful,
|
||
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||
|
|
GNU General Public License, version 2.0, for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU General Public License
|
||
|
|
along with this program; if not, write to the Free Software
|
||
|
|
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
|
||
|
|
|
||
|
|
#ifndef MY_IO_INCLUDED
|
||
|
|
#define MY_IO_INCLUDED 1
|
||
|
|
|
||
|
|
/**
|
||
|
|
@file include/my_io.h
|
||
|
|
Common \#defines and includes for file and socket I/O.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <mysql/components/services/my_io_bits.h>
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
|
||
|
|
/* Define missing access() modes. */
|
||
|
|
#define F_OK 0
|
||
|
|
#define W_OK 2
|
||
|
|
#define R_OK 4 /* Test for read permission. */
|
||
|
|
|
||
|
|
/* Define missing file locking constants. */
|
||
|
|
#define F_RDLCK 1
|
||
|
|
#define F_WRLCK 2
|
||
|
|
#define F_UNLCK 3
|
||
|
|
|
||
|
|
#define O_NONBLOCK 1 /* For emulation of fcntl() */
|
||
|
|
|
||
|
|
/*
|
||
|
|
SHUT_RDWR is called SD_BOTH in windows and
|
||
|
|
is defined to 2 in winsock2.h
|
||
|
|
#define SD_BOTH 0x02
|
||
|
|
*/
|
||
|
|
#define SHUT_RDWR 0x02
|
||
|
|
|
||
|
|
#endif // _WIN32
|
||
|
|
|
||
|
|
/* file create flags */
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
/* Only for my_fopen() - _O_BINARY is set by default for my_open() */
|
||
|
|
#define MY_FOPEN_BINARY _O_BINARY
|
||
|
|
#else
|
||
|
|
#define MY_FOPEN_BINARY 0 /* Ignore on non-Windows */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
#define O_NOFOLLOW 0 /* Ignore on Windows */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* additional file share flags for win32 */
|
||
|
|
#ifdef _WIN32
|
||
|
|
#define _SH_DENYRWD 0x110 /* deny read/write mode & delete */
|
||
|
|
#define _SH_DENYWRD 0x120 /* deny write mode & delete */
|
||
|
|
#define _SH_DENYRDD 0x130 /* deny read mode & delete */
|
||
|
|
#define _SH_DENYDEL 0x140 /* deny delete only */
|
||
|
|
#endif /* _WIN32 */
|
||
|
|
|
||
|
|
/* General constants */
|
||
|
|
#define FN_LEN 256 /* Max file name len */
|
||
|
|
#define FN_HEADLEN 253 /* Max length of filepart of file name */
|
||
|
|
#define FN_EXTLEN 20 /* Max length of extension (part of FN_LEN) */
|
||
|
|
#define FN_REFLEN 512 /* Max length of full path-name */
|
||
|
|
#define FN_REFLEN_SE 4000 /* Max length of full path-name in SE */
|
||
|
|
#define FN_EXTCHAR '.'
|
||
|
|
#define FN_HOMELIB '~' /* ~/ is used as abbrev for home dir */
|
||
|
|
#define FN_CURLIB '.' /* ./ is used as abbrev for current dir */
|
||
|
|
#define FN_PARENTDIR ".." /* Parent directory; Must be a string */
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
#define FN_LIBCHAR '\\'
|
||
|
|
#define FN_LIBCHAR2 '/'
|
||
|
|
#define FN_DIRSEP "/\\" /* Valid directory separators */
|
||
|
|
#define FN_EXEEXT ".exe"
|
||
|
|
#define FN_SOEXT ".dll"
|
||
|
|
#define FN_ROOTDIR "\\"
|
||
|
|
#define FN_DEVCHAR ':'
|
||
|
|
#define FN_NETWORK_DRIVES /* Uses \\ to indicate network drives */
|
||
|
|
#else
|
||
|
|
#define FN_LIBCHAR '/'
|
||
|
|
/*
|
||
|
|
FN_LIBCHAR2 is not defined on !Windows. Use is_directory_separator().
|
||
|
|
*/
|
||
|
|
#define FN_DIRSEP "/" /* Valid directory separators */
|
||
|
|
#define FN_EXEEXT ""
|
||
|
|
#define FN_SOEXT ".so"
|
||
|
|
#define FN_ROOTDIR "/"
|
||
|
|
#endif
|
||
|
|
|
||
|
|
static inline int is_directory_separator(char c) {
|
||
|
|
#ifdef _WIN32
|
||
|
|
return c == FN_LIBCHAR || c == FN_LIBCHAR2;
|
||
|
|
#else
|
||
|
|
return c == FN_LIBCHAR;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
MY_FILE_MIN is Windows speciality and is used to quickly detect
|
||
|
|
the mismatch of CRT and mysys file IO usage on Windows at runtime.
|
||
|
|
CRT file descriptors can be in the range 0-2047, whereas descriptors
|
||
|
|
returned by my_open() will start with 2048. If a file descriptor with value
|
||
|
|
less then MY_FILE_MIN is passed to mysys IO function, chances are it stemms
|
||
|
|
from open()/fileno() and not my_open()/my_fileno.
|
||
|
|
|
||
|
|
For Posix, mysys functions are light wrappers around libc, and MY_FILE_MIN
|
||
|
|
is logically 0.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#ifdef _WIN32
|
||
|
|
#define MY_FILE_MIN 2048
|
||
|
|
#else
|
||
|
|
#define MY_FILE_MIN 0
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/*
|
||
|
|
MY_NFILE is the default size of my_file_info array.
|
||
|
|
|
||
|
|
It is larger on Windows, because it all file handles are stored in
|
||
|
|
my_file_info Default size is 16384 and this should be enough for most cases.If
|
||
|
|
it is not enough, --max-open-files with larger value can be used.
|
||
|
|
|
||
|
|
For Posix , my_file_info array is only used to store filenames for
|
||
|
|
error reporting and its size is not a limitation for number of open files.
|
||
|
|
*/
|
||
|
|
#ifdef _WIN32
|
||
|
|
#define MY_NFILE (16384 + MY_FILE_MIN)
|
||
|
|
#else
|
||
|
|
#define MY_NFILE 64
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define OS_FILE_LIMIT UINT_MAX
|
||
|
|
|
||
|
|
/*
|
||
|
|
Io buffer size; Must be a power of 2 and a multiple of 512. May be
|
||
|
|
smaller what the disk page size. This influences the speed of the
|
||
|
|
isam btree library. eg to big to slow.
|
||
|
|
*/
|
||
|
|
#define IO_SIZE 4096
|
||
|
|
|
||
|
|
#if defined(_WIN32)
|
||
|
|
#define socket_errno WSAGetLastError()
|
||
|
|
#define SOCKET_EINTR WSAEINTR
|
||
|
|
#define SOCKET_EAGAIN WSAEINPROGRESS
|
||
|
|
#define SOCKET_EWOULDBLOCK WSAEWOULDBLOCK
|
||
|
|
#define SOCKET_EADDRINUSE WSAEADDRINUSE
|
||
|
|
#define SOCKET_ETIMEDOUT WSAETIMEDOUT
|
||
|
|
#define SOCKET_ECONNRESET WSAECONNRESET
|
||
|
|
#define SOCKET_ENFILE ENFILE
|
||
|
|
#define SOCKET_EMFILE EMFILE
|
||
|
|
#else /* Unix */
|
||
|
|
#define socket_errno errno
|
||
|
|
#define closesocket(A) close(A)
|
||
|
|
#define SOCKET_EINTR EINTR
|
||
|
|
#define SOCKET_EAGAIN EAGAIN
|
||
|
|
#define SOCKET_EWOULDBLOCK EWOULDBLOCK
|
||
|
|
#define SOCKET_EADDRINUSE EADDRINUSE
|
||
|
|
#define SOCKET_ETIMEDOUT ETIMEDOUT
|
||
|
|
#define SOCKET_ECONNRESET ECONNRESET
|
||
|
|
#define SOCKET_ENFILE ENFILE
|
||
|
|
#define SOCKET_EMFILE EMFILE
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#ifndef _WIN32
|
||
|
|
#define INVALID_SOCKET -1
|
||
|
|
#endif /* _WIN32 */
|
||
|
|
|
||
|
|
/* File permissions */
|
||
|
|
#define USER_READ (1L << 0)
|
||
|
|
#define USER_WRITE (1L << 1)
|
||
|
|
#define USER_EXECUTE (1L << 2)
|
||
|
|
#define GROUP_READ (1L << 3)
|
||
|
|
#define GROUP_WRITE (1L << 4)
|
||
|
|
#define GROUP_EXECUTE (1L << 5)
|
||
|
|
#define OTHERS_READ (1L << 6)
|
||
|
|
#define OTHERS_WRITE (1L << 7)
|
||
|
|
#define OTHERS_EXECUTE (1L << 8)
|
||
|
|
#define USER_RWX USER_READ | USER_WRITE | USER_EXECUTE
|
||
|
|
#define GROUP_RWX GROUP_READ | GROUP_WRITE | GROUP_EXECUTE
|
||
|
|
#define OTHERS_RWX OTHERS_READ | OTHERS_WRITE | OTHERS_EXECUTE
|
||
|
|
|
||
|
|
#endif // MY_IO_INCLUDED
|