support for huge files (patch 1002226)
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@29355 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
@@ -19,10 +19,79 @@
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#include "wx/list.h"
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#include "wx/arrstr.h"
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#ifndef __WXWINCE__
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#include <time.h>
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#ifdef __WXWINCE__
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#include "wx/msw/wince/time.h"
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#include "wx/msw/private.h"
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#else
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#include <time.h>
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#endif
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#ifdef __WXWINCE__
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// Nothing
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#elif !defined(__MWERKS__)
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#include <sys/types.h>
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#include <sys/stat.h>
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#else
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#ifdef __MACH__
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#include <sys/types.h>
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#include <utime.h>
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#include <sys/stat.h>
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#include <unistd.h>
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#else
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#include <stat.h>
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#include <unistd.h>
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#include <unix.h>
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#endif
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#endif
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#ifdef __OS2__
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// need to check for __OS2__ first since currently both
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// __OS2__ and __UNIX__ are defined.
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#include <process.h>
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#include "wx/os2/private.h"
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#include <io.h>
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#ifdef __EMX__
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#include <unistd.h>
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#endif
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#elif defined(__UNIX__)
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#include <unistd.h>
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#include <dirent.h>
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#endif
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#if defined(__WINDOWS__) && !defined(__WXMICROWIN__)
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#if !defined( __GNUWIN32__ ) && !defined( __MWERKS__ ) && !defined(__SALFORDC__) && !defined(__WXWINCE__)
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#include <direct.h>
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#include <dos.h>
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#include <io.h>
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#endif // __WINDOWS__
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#endif // native Win compiler
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#if defined(__DOS__)
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#ifdef __WATCOMC__
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#include <direct.h>
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#include <dos.h>
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#include <io.h>
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#endif
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#ifdef __DJGPP__
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#include <io.h>
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#include <unistd.h>
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#endif
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#endif
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#ifdef __BORLANDC__ // Please someone tell me which version of Borland needs
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// this (3.1 I believe) and how to test for it.
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// If this works for Borland 4.0 as well, then no worries.
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#include <dir.h>
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#endif
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#ifdef __SALFORDC__
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#include <dir.h>
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#include <unix.h>
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#endif
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#ifndef __WXWINCE__
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#include <fcntl.h> // O_RDONLY &c
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#endif
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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@@ -30,12 +99,12 @@
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#ifdef __WXWINCE__
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typedef long off_t;
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#else
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// define off_t
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#if !defined(__WXMAC__) || defined(__UNIX__) || defined(__MACH__)
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#include <sys/types.h>
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#else
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typedef long off_t;
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// define off_t
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#if !defined(__WXMAC__) || defined(__UNIX__) || defined(__MACH__)
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#include <sys/types.h>
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#else
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typedef long off_t;
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#endif
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#endif
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#if defined(__VISUALC__) || ( defined(__MWERKS__) && defined( __INTEL__) )
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@@ -46,8 +115,6 @@
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typedef long off_t;
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#endif
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#endif
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#if defined(__VISAGECPP__) && __IBMCPP__ >= 400
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//
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// VisualAge C++ V4.0 cannot have any external linkage const decs
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@@ -70,25 +137,103 @@ enum wxSeekMode
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// underscores to the usual names, some also have Unicode versions of them
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// ----------------------------------------------------------------------------
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// Wrappers around Win32 api functions like CreateFile, ReadFile and such
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// Implemented in filefnwce.cpp
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#if defined( __WINCE__)
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typedef __int64 wxFileOffset;
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#define wxFileOffsetFmtSpec _("I64")
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int wxOpen(const wxChar *filename, int oflag, int WXUNUSED(pmode));
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int wxAccess(const wxChar *name, int WXUNUSED(how));
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int wxClose(int fd);
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int wxFsync(int WXUNUSED(fd));
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int wxRead(int fd, void *buf, unsigned int count);
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int wxWrite(int fd, const void *buf, unsigned int count);
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int wxEof(int fd);
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wxFileOffset wxSeek(int fd, wxFileOffset offset, int origin);
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#define wxLSeek wxSeek
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wxFileOffset wxTell(int fd);
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#if wxUSE_UNICODE
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#if wxUSE_UNICODE_MSLU
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#define wxMkDir wxMSLU__wmkdir
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#define wxRmDir wxMSLU__wrmdir
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#define wxStat wxMSLU__wstat
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#else
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#define wxMkDir _wmkdir
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#define wxRmDir _wrmdir
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#define wxStat _wstat
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#endif
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#else // !wxUSE_UNICODE
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#define wxMkDir _mkdir
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#ifdef __WATCOMC__
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#define wxRmDir rmdir
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#else
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#define wxRmDir _rmdir
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#endif
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#define wxStat _stat
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#endif
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#define wxStructStat struct _stat
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// Microsoft compiler loves underscores, feed them to it
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#if defined( __VISUALC__ ) \
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#elif defined( __VISUALC__ ) \
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|| ( defined(__MINGW32__) && !defined(__WINE__) && wxCHECK_W32API_VERSION( 0, 5 ) ) \
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|| ( defined(__MWERKS__) && defined(__WXMSW__) ) \
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|| ( defined(__DMC__) && defined(__WXMSW__) ) \
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|| ( defined(__WATCOMC__) && defined(__WXMSW__) )
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// Not all of the Win32 compilers do have huge file support, for example
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// the Digitalmars compiler does not have huge file size support
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#undef __HUGEFILES_SUPPORTED
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#if _INTEGRAL_MAX_BITS >= 64 && !defined(__DMC__)
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#define __HUGEFILES_SUPPORTED 1
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#else
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#define __HUGEFILES_SUPPORTED 0
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#endif
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// functions
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#if defined(__BORLANDC__) || defined(__WATCOMC__)
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#define _tell tell
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#endif
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#if defined(__BORLANDC__) || defined(__WATCOMC__)
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#define _tell tell
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#endif
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#if __HUGEFILES_SUPPORTED
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typedef wxLongLong_t wxFileOffset;
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#define wxFileOffsetFmtSpec wxLongLongFmtSpec
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#else
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typedef int wxFileOffset;
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#define wxFileOffsetFmtSpec _("")
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#endif
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#define wxClose _close
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#define wxRead _read
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#define wxWrite _write
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#define wxLseek _lseek
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#if defined(__MWERKS__)
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#if __MSL__ >= 0x6000
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#define wxRead _read(fd, (void *)buf, nCount)
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#define wxWrite _write(fd, (void *)buf, nCount)
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#else
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#define wxRead _read(fd, (const char *)buf, nCount)
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#define wxWrite _write(fd, (const char *)buf, nCount)
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#endif
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#else
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#ifdef __DMC__
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#define wxRead ::read
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#define wxWrite ::write
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#else
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#define wxRead _read
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#define wxWrite _write
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#endif
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#endif
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#if __HUGEFILES_SUPPORTED
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#define wxSeek _lseeki64
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#define wxLseek _lseeki64
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#define wxTell _telli64
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#else
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#define wxSeek _lseek
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#define wxLseek _lseek
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#define wxTell _tell
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#endif
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#define wxFsync _commit
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#define wxEof _eof
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#define wxTell _tell
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#if wxUSE_UNICODE
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#if wxUSE_UNICODE_MSLU
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#define wxOpen wxMSLU__wopen
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@@ -96,36 +241,56 @@ enum wxSeekMode
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#define wxAccess wxMSLU__waccess
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#define wxMkDir wxMSLU__wmkdir
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#define wxRmDir wxMSLU__wrmdir
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#define wxStat wxMSLU__wstat
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#if __HUGEFILES_SUPPORTED
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#define wxStat wxMSLU__wstati64
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#else
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#define wxStat wxMSLU__wstat
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#endif
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#else
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#define wxOpen _wopen
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#define wxAccess _waccess
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#define wxMkDir _wmkdir
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#define wxRmDir _wrmdir
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#define wxStat _wstat
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#if __HUGEFILES_SUPPORTED
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#define wxStat _wstati64
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#else
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#define wxStat _wstat
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#endif
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#endif
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#else // !wxUSE_UNICODE
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#ifdef __BORLANDC__
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#define wxOpen open
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#else
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#define wxOpen _open
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#endif
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#ifdef __BORLANDC__
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#define wxOpen open
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#else
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#define wxOpen _open
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#endif
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#define wxAccess _access
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#define wxMkDir _mkdir
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#ifdef __WATCOMC__
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#define wxRmDir rmdir
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#else
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#define wxRmDir _rmdir
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#endif
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#define wxStat _stat
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#ifdef __WATCOMC__
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#define wxRmDir rmdir
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#else
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#define wxRmDir _rmdir
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#endif
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#if __HUGEFILES_SUPPORTED
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#define wxStat _stati64
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#else
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#define wxStat _stat
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#endif
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#endif
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// types
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#if defined(__WATCOMC__)&& wxUSE_UNICODE
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#define wxStructStat struct _wstat
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#else
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#define wxStructStat struct _stat
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#endif
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#if __HUGEFILES_SUPPORTED
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#if wxUSE_UNICODE
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#define wxStructStat struct _wstati64
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#else
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#define wxStructStat struct _stati64
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#endif
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#else
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#if wxUSE_UNICODE
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#define wxStructStat struct _wstat
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#else
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#define wxStructStat struct _stat
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#endif
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#endif
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// constants (unless already defined by the user code)
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#if !defined(O_RDONLY) && !defined(__BORLANDC__) && !defined(__WATCOMC__)
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@@ -142,12 +307,22 @@ enum wxSeekMode
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#define S_IFDIR _S_IFDIR
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#define S_IFREG _S_IFREG
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#endif // O_RDONLY
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// It's a private define, undefine it so nobody gets tempted to use it
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#undef __HUGEFILES_SUPPORTED
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#else
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typedef off_t wxFileOffset;
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#ifdef _LARGE_FILES
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#define wxFileOffsetFmtSpec wxLongLongFmtSpec
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#else
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#define wxFileOffsetFmtSpec _T("")
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#endif
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// functions
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#define wxClose close
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#define wxRead read
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#define wxWrite write
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#define wxRead ::read
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#define wxWrite ::write
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#define wxLseek lseek
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#define wxSeek lseek
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#define wxFsync commit
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#define wxEof eof
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@@ -158,22 +333,19 @@ enum wxSeekMode
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#define wxStructStat struct stat
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#if wxUSE_UNICODE
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# define wxNEED_WX_UNISTD_H
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#if defined(__MWERKS__) && defined(macintosh)
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#include <sys/stat.h>
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#endif
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#if defined(__DMC__)
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typedef unsigned long mode_t;
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#endif
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WXDLLIMPEXP_BASE int wxStat( const wxChar *file_name, wxStructStat *buf );
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WXDLLIMPEXP_BASE int wxAccess( const wxChar *pathname, int mode );
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WXDLLIMPEXP_BASE int wxOpen( const wxChar *pathname, int flags, mode_t mode );
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#else
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#define wxOpen open
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#define wxStat stat
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#define wxAccess access
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#endif
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#if wxUSE_UNICODE
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#define wxNEED_WX_UNISTD_H
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#if defined(__DMC__)
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typedef unsigned long mode_t;
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#endif
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WXDLLIMPEXP_BASE int wxStat( const wxChar *file_name, wxStructStat *buf );
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WXDLLIMPEXP_BASE int wxAccess( const wxChar *pathname, int mode );
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WXDLLIMPEXP_BASE int wxOpen( const wxChar *pathname, int flags, mode_t mode );
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#else
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#define wxOpen open
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#define wxStat stat
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#define wxAccess access
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#endif
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#endif // VC++
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