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https://git.dev.opencascade.org/repos/occt.git
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718d07fe5e
OSD_OpenFileDescriptor(), added truncating flag to fopen() flags for std::ios_base::out, since truncating is implied by C++ output flag. This fixes misbehavior of OSD_OpenStream() on MinGW-w64 platform.
143 lines
3.9 KiB
C++
143 lines
3.9 KiB
C++
// Copyright (c) 2014 OPEN CASCADE SAS
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//
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// This file is part of Open CASCADE Technology software library.
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//
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// This library is free software; you can redistribute it and/or modify it under
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// the terms of the GNU Lesser General Public License version 2.1 as published
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// by the Free Software Foundation, with special exception defined in the file
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// OCCT_LGPL_EXCEPTION.txt. Consult the file LICENSE_LGPL_21.txt included in OCCT
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// distribution for complete text of the license and disclaimer of any warranty.
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//
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// Alternatively, this file may be used under the terms of Open CASCADE
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// commercial license or contractual agreement.
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#ifdef _WIN32
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#include <windows.h>
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#include <share.h>
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#endif
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#include <OSD_OpenFile.hxx>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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//! Auxiliary function converting C++ ios open mode flags to C fopen() flags.
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static int OSD_OpenFile_iosMode2FileFlags (::std::ios_base::openmode theMode)
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{
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int aFlags = 0;
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if (theMode & ::std::ios_base::in)
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{
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aFlags |= O_RDONLY;
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}
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if (theMode & ::std::ios_base::out)
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{
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aFlags |= O_WRONLY;
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aFlags |= O_CREAT;
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aFlags |= O_TRUNC;
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if (theMode & ::std::ios_base::app)
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{
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aFlags |= O_APPEND;
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}
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}
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#ifdef _WIN32
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if (theMode & ::std::ios_base::binary)
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{
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aFlags |= O_BINARY;
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}
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else
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{
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aFlags |= O_TEXT;
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}
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#endif
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return aFlags;
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}
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// ==============================================
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// function : OSD_OpenFile
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// purpose : Opens file
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// ==============================================
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int OSD_OpenFileDescriptor (const TCollection_ExtendedString& theName,
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::std::ios_base::openmode theMode)
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{
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int aFileDesc = -1;
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const int aFlags = OSD_OpenFile_iosMode2FileFlags (theMode);
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#if defined(_WIN32)
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const errno_t anErrCode = _wsopen_s (&aFileDesc, theName.ToWideString(), aFlags, _SH_DENYNO, _S_IREAD | _S_IWRITE);
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if (anErrCode != 0)
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{
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return -1;
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}
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#else
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NCollection_Utf8String aString (theName.ToExtString());
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aFileDesc = open (aString.ToCString(), aFlags);
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#endif
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return aFileDesc;
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}
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// ==============================================
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// function : OSD_OpenFile
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// purpose : Opens file
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// ==============================================
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FILE* OSD_OpenFile(const char* theName,
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const char* theMode)
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{
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FILE* aFile = 0;
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#if defined(_WIN32)
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// file name is treated as UTF-8 string and converted to UTF-16 one
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const TCollection_ExtendedString aFileNameW (theName, Standard_True);
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const TCollection_ExtendedString aFileModeW (theMode, Standard_True);
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aFile = ::_wfopen (aFileNameW.ToWideString(),
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aFileModeW.ToWideString());
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#else
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aFile = ::fopen (theName, theMode);
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#endif
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return aFile;
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}
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// ==============================================
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// function : OSD_OpenFile
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// purpose : Opens file
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// ==============================================
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FILE* OSD_OpenFile(const TCollection_ExtendedString& theName,
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const char* theMode)
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{
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FILE* aFile = 0;
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#if defined(_WIN32)
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const TCollection_ExtendedString aFileModeW (theMode, Standard_True);
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aFile = ::_wfopen (theName.ToWideString(),
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aFileModeW.ToWideString());
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#else
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// conversion in UTF-8 for linux
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NCollection_Utf8String aString (theName.ToExtString());
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aFile = ::fopen (aString.ToCString(),theMode);
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#endif
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return aFile;
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}
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// ==============================================
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// function : OSD_FileStatCTime
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// purpose :
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// ==============================================
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Standard_Time OSD_FileStatCTime (const char* theName)
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{
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Standard_Time aTime = 0;
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#if defined(_WIN32)
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// file name is treated as UTF-8 string and converted to UTF-16 one
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const TCollection_ExtendedString aFileNameW (theName, Standard_True);
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struct __stat64 aStat;
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if (_wstat64 (aFileNameW.ToWideString(), &aStat) == 0)
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{
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aTime = (Standard_Time )aStat.st_ctime;
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}
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#else
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struct stat aStat;
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if (stat (theName, &aStat) == 0)
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{
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aTime = (Standard_Time )aStat.st_ctime;
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}
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#endif
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return aTime;
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}
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