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mariadb/include/config-win.h
Vladislav Vaintroub 716099e07c This is the downport of 
Bug#24509 - 2048 file descriptor limit on windows needs increasing, also 
WL#3049 - improved Windows I/O
                        
The patch replaces the use of the POSIX I/O interfaces in mysys on Windows with 
the Win32 API calls (CreateFile, WriteFile, etc). The Windows HANDLE for the open 
file is stored in the my_file_info struct, along with a flag for append mode 
because the Windows API does not support opening files in append mode in all cases)
The default max open files has been increased to 16384 and can be increased further
by setting --max-open-files=<value> during the server start.
                              
Another major change in this patch that almost all Windows specific file IO code
has been moved to a new file my_winfile.c, greatly reducing the amount of code 
in #ifdef blocks within mysys, thus improving readability.
                               
                                    
Minor enhancements:
- my_(f)stat() is changed to use __stati64 structure with  64 file size
and timestamps. It will return correct file size now (C runtime implementation
used to report outdated information)
- my_lock on Windows is prepared to handle additional timeout parameter
- after review : changed __WIN__ to _WIN32 in the new and changed code.

client/mysqlbinlog.cc:
  fileno -> my_fileno
client/readline.cc:
  fileno -> my_fileno
include/config-win.h:
  Increase OS_FILE_LIMIT for Windows.
  Remove O_SHARE - Windows does not support it. Its definition conflicts with
  O_SHORT_LIVED, that has different semantics.
include/my_dir.h:
  Use stat64 for stat() family of functions on Windows, because of 64 bit file size.
include/my_global.h:
  Increased default value for open file limit to 16K
include/my_sys.h:
  - my_file_info got new structure members - file handle and open flags
  - 2 new Windows-only mysys functions : my_get_osfhandle and my_osmaperr,
    modelled after Windows C runtime functions _get_osfhandle and _dosmaperr
libmysql/CMakeLists.txt:
  new files my_winfile.c and my_winerr.c
mysql-test/suite/large_tests/r/lock_tables_big.result:
  test for more then 2048 open file descriptors on Windows
mysql-test/suite/large_tests/t/lock_tables_big.test:
  test for more then 2048 open file descriptors on Windows
mysys/CMakeLists.txt:
  new files my_winfile.c and my_winerr.c
mysys/Makefile.am:
  new files my_winfile.c and my_winerr.c
mysys/default_modify.c:
  fileno -> my_fileno
mysys/my_chsize.c:
  implementation of chsize on Windows now moved to my_winfile.c
mysys/my_create.c:
  - my_sopen->my_win_open
  - close open file before removing (won't generally work on Windows otherwise)
mysys/my_file.c:
  On Windows, files returned by my_open will not start with 0, but 2048 
  (making it simple to detect incompatible mix of CRT and mysys  io functions)
mysys/my_fopen.c:
  fileno->my_win_fileno , fclose->my_win_fclose, fdopen->my_win_fdopen
  Check for legal filename is done by my_win_[f]open functions
mysys/my_fstream.c:
  fileno->my_fileno
mysys/my_lib.c:
  Windows stat() functions are moved to my_winfile.c
mysys/my_lock.c:
  Move Windows code under #ifdef to a separate function win_lock().
  Add a parameter for lock wait timeout
mysys/my_mmap.c:
   _get_osfhandle->my_get_osfhandle
mysys/my_open.c:
  my_sopen->my_win_open (simpler interface)
mysys/my_pread.c:
  moved most windows specific code to my_win_file.c
  Use my_win_pread
mysys/my_quick.c:
  Use my_win_read/my_win_write
mysys/my_read.c:
  Moved most of windows specific code to my_win_file.c
  Use my_win_read()
mysys/my_seek.c:
  On Windows, use my_win_lseek() in my_seek()/my_tell()
  Removed dead code (synchronization of lseeks)
  Improved DBUG tracing (file position is ulonglong, not ulong)
mysys/my_static.c:
  Removed array initialization. my_file_info_default is global variable
  thus it is initialized with all zeros anyway
mysys/my_sync.c:
  _commit->my_win_fsync
mysys/my_winerr.c:
  New file my_winerr.c
  Exports my_osmaperr modelled after undocumented C runtime
  function _dosmaperr(). The problem with _dosmaperr() used previously is that 
  1) it is nowhere documented and thus code relying on it is not guaranteed to work
     in subsequent releases on the C runtime
  2) it is present only in static C runtime (mysqld does not link if compiled with
    /MD)
mysys/my_winfile.c:
  New file my_winfile.c
  Implements ANSI/Posix file IO routines, when possible using native Windows IO, without
  C runtime (C runtime dropped because of the 2048 file descriptor limit).
mysys/my_write.c:
  write->my_win_write
mysys/mysys_priv.h:
  Declaration of Windows Posix functions (private to mysys, shall not be visible
  outside)
storage/innobase/handler/ha_innodb.cc:
  mysys native Windows IO : correct innodb tmp file handling
  mysql_tmpfile does not return valid CRT file descriptor, thus
  it is not possible to dup() it. Instead, the native file handle has 
  to be duplicated and then converted to CRT descriptor.
storage/myisam/mi_locking.c:
  _commit->my_sync
2009-09-11 22:26:35 +02:00

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/* Copyright 2000-2008 MySQL AB, 2008 Sun Microsystems, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; version 2 of the License.
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 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
/* Defines for Win32 to make it compatible for MySQL */
#define BIG_TABLES
#if defined(_MSC_VER) && _MSC_VER >= 1400
/* Avoid endless warnings about sprintf() etc. being unsafe. */
#define _CRT_SECURE_NO_DEPRECATE 1
#endif
#include <sys/locking.h>
#include <winsock2.h>
#include <fcntl.h>
#include <io.h>
#include <malloc.h>
#define HAVE_SMEM 1
#if defined(_WIN64) || defined(WIN64)
#define SYSTEM_TYPE "Win64"
#elif defined(_WIN32) || defined(WIN32)
#define SYSTEM_TYPE "Win32"
#else
#define SYSTEM_TYPE "Windows"
#endif
#if defined(_M_IA64)
#define MACHINE_TYPE "ia64"
#elif defined(_M_IX86)
#define MACHINE_TYPE "ia32"
#elif defined(_M_ALPHA)
#define MACHINE_TYPE "axp"
#else
#define MACHINE_TYPE "unknown" /* Define to machine type name */
#endif
#if !(defined(_WIN64) || defined(WIN64))
#ifndef _WIN32
#define _WIN32 /* Compatible with old source */
#endif
#ifndef __WIN32__
#define __WIN32__
#endif
#endif /* _WIN64 */
#ifndef __WIN__
#define __WIN__ /* To make it easier in VC++ */
#endif
#ifndef MAX_INDEXES
#define MAX_INDEXES 64
#endif
/* File and lock constants */
#ifdef __BORLANDC__
#define F_RDLCK LK_NBLCK /* read lock */
#define F_WRLCK LK_NBRLCK /* write lock */
#define F_UNLCK LK_UNLCK /* remove lock(s) */
#else
#define F_RDLCK _LK_NBLCK /* read lock */
#define F_WRLCK _LK_NBRLCK /* write lock */
#define F_UNLCK _LK_UNLCK /* remove lock(s) */
#endif
#define F_EXCLUSIVE 1 /* We have only exclusive locking */
#define F_TO_EOF (INT_MAX32/2) /* size for lock of all file */
#define F_OK 0 /* parameter to access() */
#define W_OK 2
#define S_IROTH S_IREAD /* for my_lib */
#ifdef __BORLANDC__
#define FILE_BINARY O_BINARY /* my_fopen in binary mode */
#define O_TEMPORARY 0
#define O_SHORT_LIVED 0
#define SH_DENYNO _SH_DENYNO
#else
#define O_BINARY _O_BINARY /* compability with older style names */
#define FILE_BINARY _O_BINARY /* my_fopen in binary mode */
#define O_TEMPORARY _O_TEMPORARY
#define O_SHORT_LIVED _O_SHORT_LIVED
#define SH_DENYNO _SH_DENYNO
#endif
#define NO_OPEN_3 /* For my_create() */
#define SIGQUIT SIGTERM /* No SIGQUIT */
#undef _REENTRANT /* Crashes something for win32 */
#undef SAFE_MUTEX /* Can't be used on windows */
#if defined(_MSC_VER) && _MSC_VER >= 1310
#define LL(A) A##ll
#define ULL(A) A##ull
#else
#define LL(A) ((__int64) A)
#define ULL(A) ((unsigned __int64) A)
#endif
#define LONGLONG_MIN LL(0x8000000000000000)
#define LONGLONG_MAX LL(0x7FFFFFFFFFFFFFFF)
#define ULONGLONG_MAX ULL(0xFFFFFFFFFFFFFFFF)
/* Type information */
#if !defined(HAVE_UINT)
#undef HAVE_UINT
#define HAVE_UINT
typedef unsigned short ushort;
typedef unsigned int uint;
#endif /* !defined(HAVE_UINT) */
typedef unsigned __int64 ulonglong; /* Microsofts 64 bit types */
typedef __int64 longlong;
#ifndef HAVE_SIGSET_T
typedef int sigset_t;
#endif
#define longlong_defined
/*
off_t should not be __int64 because of conflicts in header files;
Use my_off_t or os_off_t instead
*/
#ifndef HAVE_OFF_T
typedef long off_t;
#endif
typedef __int64 os_off_t;
#ifdef _WIN64
typedef UINT_PTR rf_SetTimer;
#else
#ifndef HAVE_SIZE_T
typedef unsigned int size_t;
#endif
typedef uint rf_SetTimer;
#endif
#define Socket_defined
#define my_socket SOCKET
#define SIGPIPE SIGINT
#define RETQSORTTYPE void
#define QSORT_TYPE_IS_VOID
#define RETSIGTYPE void
#define SOCKET_SIZE_TYPE int
#define my_socket_defined
#define byte_defined
#define HUGE_PTR
#define STDCALL __stdcall /* Used by libmysql.dll */
#define isnan(X) _isnan(X)
#define finite(X) _finite(X)
#ifndef UNDEF_THREAD_HACK
#define THREAD
#endif
#define VOID_SIGHANDLER
#define SIZEOF_CHAR 1
#define SIZEOF_INT 4
#define SIZEOF_LONG 4
#define SIZEOF_LONG_LONG 8
#define SIZEOF_OFF_T 8
#ifdef _WIN64
#define SIZEOF_CHARP 8
#else
#define SIZEOF_CHARP 4
#endif
#define HAVE_BROKEN_NETINET_INCLUDES
#ifdef __NT__
#define HAVE_NAMED_PIPE /* We can only create pipes on NT */
#endif
/* ERROR is defined in wingdi.h */
#undef ERROR
/* We need to close files to break connections on shutdown */
#ifndef SIGNAL_WITH_VIO_CLOSE
#define SIGNAL_WITH_VIO_CLOSE
#endif
/* All windows servers should support .sym files */
#undef USE_SYMDIR
#define USE_SYMDIR
/* If LOAD DATA LOCAL INFILE should be enabled by default */
#define ENABLED_LOCAL_INFILE 1
/* If query profiling should be enabled by default */
#define ENABLED_PROFILING 1
/* Convert some simple functions to Posix */
#define my_sigset(A,B) signal((A),(B))
#define finite(A) _finite(A)
#define sleep(A) Sleep((A)*1000)
#define popen(A,B) _popen((A),(B))
#define pclose(A) _pclose(A)
#ifndef __BORLANDC__
#define access(A,B) _access(A,B)
#endif
#if !defined(__cplusplus)
#define inline __inline
#endif /* __cplusplus */
#ifdef _WIN64
#define ulonglong2double(A) ((double) (ulonglong) (A))
#define my_off_t2double(A) ((double) (my_off_t) (A))
#else
inline double ulonglong2double(ulonglong value)
{
longlong nr=(longlong) value;
if (nr >= 0)
return (double) nr;
return (18446744073709551616.0 + (double) nr);
}
#define my_off_t2double(A) ulonglong2double(A)
#endif /* _WIN64 */
inline ulonglong double2ulonglong(double d)
{
double t= d - (double) 0x8000000000000000ULL;
if (t >= 0)
return ((ulonglong) t) + 0x8000000000000000ULL;
return (ulonglong) d;
}
#if SIZEOF_OFF_T > 4
#define lseek(A,B,C) _lseeki64((A),(longlong) (B),(C))
#define tell(A) _telli64(A)
#endif
#define STACK_DIRECTION -1
/* Difference between GetSystemTimeAsFileTime() and now() */
#define OFFSET_TO_EPOCH ULL(116444736000000000)
#define HAVE_PERROR
#define HAVE_VFPRINT
#define HAVE_RENAME /* Have rename() as function */
#define HAVE_BINARY_STREAMS /* Have "b" flag in streams */
#define HAVE_LONG_JMP /* Have long jump function */
#define HAVE_LOCKING /* have locking() call */
#define HAVE_ERRNO_AS_DEFINE /* errno is a define */
#define HAVE_STDLIB /* everything is include in this file */
#define HAVE_MEMCPY
#define HAVE_MEMMOVE
#define HAVE_GETCWD
#define HAVE_TELL
#define HAVE_TZNAME
#define HAVE_PUTENV
#define HAVE_SELECT
#define HAVE_SETLOCALE
#define HAVE_SOCKET /* Giangi */
#define HAVE_FLOAT_H
#define HAVE_LIMITS_H
#define HAVE_STDDEF_H
#define NO_FCNTL_NONBLOCK /* No FCNTL */
#define HAVE_ALLOCA
#define HAVE_STRPBRK
#define HAVE_STRSTR
#define HAVE_COMPRESS
#define HAVE_CREATESEMAPHORE
#define HAVE_ISNAN
#define HAVE_FINITE
#define HAVE_QUERY_CACHE
#define SPRINTF_RETURNS_INT
#define HAVE_SETFILEPOINTER
#define HAVE_VIO_READ_BUFF
#if defined(_MSC_VER) && _MSC_VER >= 1400
/* strnlen() appeared in Studio 2005 */
#define HAVE_STRNLEN
#endif
#define HAVE_WINSOCK2
#define strcasecmp stricmp
#define strncasecmp strnicmp
#ifndef __NT__
#undef FILE_SHARE_DELETE
#define FILE_SHARE_DELETE 0 /* Not implemented on Win 98/ME */
#endif
#ifdef NOT_USED
#define HAVE_SNPRINTF /* Gave link error */
#define _snprintf snprintf
#endif
#ifdef _MSC_VER
#define HAVE_LDIV /* The optimizer breaks in zortech for ldiv */
#define HAVE_ANSI_INCLUDE
#define HAVE_SYS_UTIME_H
#define HAVE_STRTOUL
#endif
#define my_reinterpret_cast(A) reinterpret_cast <A>
#define my_const_cast(A) const_cast<A>
/* MYSQL OPTIONS */
#ifdef _CUSTOMCONFIG_
#include <custom_conf.h>
#else
#ifndef CMAKE_CONFIGD
#define DEFAULT_MYSQL_HOME "c:\\mysql"
#define MYSQL_DATADIR "c:\\mysql\\data"
#define PACKAGE "mysql"
#define DEFAULT_BASEDIR "C:\\"
#define SHAREDIR "share"
#define DEFAULT_CHARSET_HOME "C:/mysql/"
#endif
#endif
#ifndef DEFAULT_HOME_ENV
#define DEFAULT_HOME_ENV MYSQL_HOME
#endif
#ifndef DEFAULT_GROUP_SUFFIX_ENV
#define DEFAULT_GROUP_SUFFIX_ENV MYSQL_GROUP_SUFFIX
#endif
/* File name handling */
#define FN_LIBCHAR '\\'
#define FN_ROOTDIR "\\"
#define FN_DEVCHAR ':'
#define FN_NETWORK_DRIVES /* Uses \\ to indicate network drives */
#define FN_NO_CASE_SENCE /* Files are not case-sensitive */
#define OS_FILE_LIMIT UINT_MAX /* No limit*/
#define DO_NOT_REMOVE_THREAD_WRAPPERS
#define thread_safe_increment(V,L) InterlockedIncrement((long*) &(V))
#define thread_safe_decrement(V,L) InterlockedDecrement((long*) &(V))
/* The following is only used for statistics, so it should be good enough */
#ifdef __NT__ /* This should also work on Win98 but .. */
#define thread_safe_add(V,C,L) InterlockedExchangeAdd((long*) &(V),(C))
#define thread_safe_sub(V,C,L) InterlockedExchangeAdd((long*) &(V),-(long) (C))
#endif
#define shared_memory_buffer_length 16000
#define default_shared_memory_base_name "MYSQL"
#define HAVE_SPATIAL 1
#define HAVE_RTREE_KEYS 1
#define HAVE_OPENSSL 1
#define HAVE_YASSL 1
#define COMMUNITY_SERVER 1
#define ENABLED_PROFILING 1
/*
Our Windows binaries include all character sets which MySQL supports.
Any changes to the available character sets must also go into
config/ac-macros/character_sets.m4
*/
#define MYSQL_DEFAULT_CHARSET_NAME "latin1"
#define MYSQL_DEFAULT_COLLATION_NAME "latin1_swedish_ci"
#define USE_MB 1
#define USE_MB_IDENT 1
#define USE_STRCOLL 1
#define HAVE_CHARSET_armscii8
#define HAVE_CHARSET_ascii
#define HAVE_CHARSET_big5 1
#define HAVE_CHARSET_cp1250 1
#define HAVE_CHARSET_cp1251
#define HAVE_CHARSET_cp1256
#define HAVE_CHARSET_cp1257
#define HAVE_CHARSET_cp850
#define HAVE_CHARSET_cp852
#define HAVE_CHARSET_cp866
#define HAVE_CHARSET_cp932 1
#define HAVE_CHARSET_dec8
#define HAVE_CHARSET_eucjpms 1
#define HAVE_CHARSET_euckr 1
#define HAVE_CHARSET_gb2312 1
#define HAVE_CHARSET_gbk 1
#define HAVE_CHARSET_geostd8
#define HAVE_CHARSET_greek
#define HAVE_CHARSET_hebrew
#define HAVE_CHARSET_hp8
#define HAVE_CHARSET_keybcs2
#define HAVE_CHARSET_koi8r
#define HAVE_CHARSET_koi8u
#define HAVE_CHARSET_latin1 1
#define HAVE_CHARSET_latin2 1
#define HAVE_CHARSET_latin5
#define HAVE_CHARSET_latin7
#define HAVE_CHARSET_macce
#define HAVE_CHARSET_macroman
#define HAVE_CHARSET_sjis 1
#define HAVE_CHARSET_swe7
#define HAVE_CHARSET_tis620 1
#define HAVE_CHARSET_ucs2 1
#define HAVE_CHARSET_ujis 1
#define HAVE_CHARSET_utf8 1
#define HAVE_UCA_COLLATIONS 1
#define HAVE_BOOL 1
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