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472433e2c7
Auxiliary classes StdObjMgt_ReadData::Object and StdObjMgt_WriteData::Object are renamed to "ObjectSentry" (to better reflect their nature); constructor is made explicit to ensure that such objects are always created intentionally. These objects are instantiated explicitly in the body of relevant functions, instead of implicit creation as temporary objects when function requires such object as argument. Variable used to get char from stream is nullified in several places in FSD_File and other classes, to avoid possible usage of uninitialized memory in case if stream is bad.
405 lines
11 KiB
C++
405 lines
11 KiB
C++
// Copyright (c) 1998-1999 Matra Datavision
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// Copyright (c) 1999-2017 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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#include <FSD_CmpFile.hxx>
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#include <OSD_OpenFile.hxx>
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#include <Storage_StreamFormatError.hxx>
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#include <Storage_StreamTypeMismatchError.hxx>
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#include <Storage_StreamWriteError.hxx>
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const Standard_CString MAGICNUMBER = "CMPFILE";
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//=======================================================================
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//function : FSD_CmpFile
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//purpose :
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//=======================================================================
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FSD_CmpFile::FSD_CmpFile()
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{}
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//=======================================================================
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//function : IsGoodFileType
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//purpose : INFO SECTION
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// write
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//=======================================================================
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Storage_Error FSD_CmpFile::IsGoodFileType(const TCollection_AsciiString& aName)
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{
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FSD_CmpFile f;
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Storage_Error s;
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s = f.Open(aName, Storage_VSRead);
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if (s == Storage_VSOk) {
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TCollection_AsciiString l;
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Standard_Size len = strlen(FSD_CmpFile::MagicNumber());
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f.ReadChar(l, len);
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f.Close();
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if (strncmp(FSD_CmpFile::MagicNumber(), l.ToCString(), len) != 0) {
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s = Storage_VSFormatError;
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}
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}
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return s;
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}
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//=======================================================================
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//function : Open
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//purpose :
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//=======================================================================
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Storage_Error FSD_CmpFile::Open(const TCollection_AsciiString& aName, const Storage_OpenMode aMode)
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{
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Storage_Error result = Storage_VSOk;
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SetName(aName);
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if (OpenMode() == Storage_VSNone) {
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std::ios_base::openmode anOpenMode = std::ios_base::openmode(0);
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switch (aMode)
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{
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case Storage_VSNone:
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{
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break;
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}
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case Storage_VSRead:
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{
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// ios::nocreate is not portable
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#if !defined(IRIX) && !defined(DECOSF1)
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anOpenMode = ios::in | ios::binary;
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#else
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anOpenMode = ios::in;
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#endif
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break;
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}
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case Storage_VSWrite:
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{
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#if !defined(IRIX) && !defined(DECOSF1)
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anOpenMode = ios::out | ios::binary;
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#else
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anOpenMode = ios::out;
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#endif
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break;
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}
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case Storage_VSReadWrite:
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{
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#if !defined(IRIX) && !defined(DECOSF1)
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anOpenMode = ios::in | ios::out | ios::binary;
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#else
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anOpenMode = ios::in | ios::out;
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#endif
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break;
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}
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}
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if (anOpenMode != 0)
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{
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OSD_OpenStream(myStream, aName, anOpenMode);
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}
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if (myStream.fail()) {
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result = Storage_VSOpenError;
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}
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else {
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myStream.precision(17);
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myStream.imbue(std::locale::classic()); // use always C locale
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SetOpenMode(aMode);
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}
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}
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else {
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result = Storage_VSAlreadyOpen;
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}
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return result;
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}
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//=======================================================================
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//function : MagicNumber
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//purpose : ------------------ PROTECTED
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//=======================================================================
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Standard_CString FSD_CmpFile::MagicNumber()
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{
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return MAGICNUMBER;
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}
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//=======================================================================
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//function : ReadLine
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//purpose : read from the current position to the end of line.
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//=======================================================================
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void FSD_CmpFile::ReadLine(TCollection_AsciiString& buffer)
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{
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buffer.Clear();
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TCollection_AsciiString aBuf('\0');
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FSD_File::ReadLine(aBuf);
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for (Standard_Integer lv = aBuf.Length(); lv >= 1 && (aBuf.Value(lv) == '\r' || (aBuf.Value(lv) == '\n')); lv--)
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aBuf.SetValue(lv, '\0');
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buffer = aBuf;
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}
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//=======================================================================
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//function : WriteExtendedLine
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//purpose : write from the current position to the end of line.
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//=======================================================================
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void FSD_CmpFile::WriteExtendedLine(const TCollection_ExtendedString& buffer)
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{
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#if 0
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Standard_ExtString extBuffer;
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Standard_Integer i, c, d;
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extBuffer = buffer.ToExtString();
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for (i = 0; i < buffer.Length(); i++) {
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c = (extBuffer[i] & 0x0000FF00) >> 8;
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d = extBuffer[i] & 0x000000FF;
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myStream << (char)c << (char)d;
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}
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myStream << (char)0 << "\n";
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#endif
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Standard_ExtString extBuffer;
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Standard_Integer i;
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extBuffer = buffer.ToExtString();
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PutInteger(buffer.Length());
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for (i = 0; i < buffer.Length(); i++) {
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PutExtCharacter(extBuffer[i]);
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}
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myStream << "\n";
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}
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//=======================================================================
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//function : ReadExtendedLine
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//purpose :
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//=======================================================================
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void FSD_CmpFile::ReadExtendedLine(TCollection_ExtendedString& buffer)
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{
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Standard_ExtCharacter c;
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Standard_Integer i;
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GetInteger(i);
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for (i = 0; i < buffer.Length(); i++) {
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GetExtCharacter(c);
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buffer += c;
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}
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FlushEndOfLine();
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}
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//=======================================================================
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//function : ReadString
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//purpose : read from the first none space character position to the end of line.
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//=======================================================================
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void FSD_CmpFile::ReadString(TCollection_AsciiString& buffer)
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{
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buffer.Clear();
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TCollection_AsciiString aBuf('\0');
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FSD_File::ReadString(aBuf);
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for (Standard_Integer lv = aBuf.Length(); lv >= 1 && (aBuf.Value(lv) == '\r' || (aBuf.Value(lv) == '\n')); lv--)
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aBuf.SetValue(lv, '\0');
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buffer = aBuf;
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}
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//=======================================================================
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//function : Destroy
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//purpose :
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//=======================================================================
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void FSD_CmpFile::Destroy()
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{
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if (OpenMode() != Storage_VSNone) {
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Close();
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}
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}
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//=======================================================================
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//function : BeginWriteInfoSection
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//purpose : -------------------------- INFO : WRITE
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//=======================================================================
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Storage_Error FSD_CmpFile::BeginWriteInfoSection()
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{
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myStream << FSD_CmpFile::MagicNumber() << '\n';
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myStream << "BEGIN_INFO_SECTION\n";
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if (myStream.bad()) throw Storage_StreamWriteError();
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return Storage_VSOk;
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}
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//=======================================================================
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//function : BeginReadInfoSection
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//purpose :
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//=======================================================================
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Storage_Error FSD_CmpFile::BeginReadInfoSection()
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{
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Storage_Error s;
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TCollection_AsciiString l;
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Standard_Size len = strlen(FSD_CmpFile::MagicNumber());
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ReadChar(l, len);
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if (strncmp(FSD_CmpFile::MagicNumber(), l.ToCString(), len) != 0) {
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s = Storage_VSFormatError;
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}
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else {
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s = FindTag("BEGIN_INFO_SECTION");
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}
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return s;
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}
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//=======================================================================
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//function : WritePersistentObjectHeader
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//purpose :
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//=======================================================================
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void FSD_CmpFile::WritePersistentObjectHeader(const Standard_Integer aRef,
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const Standard_Integer aType)
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{
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myStream << "\n#" << aRef << "%" << aType << " ";
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if (myStream.bad()) throw Storage_StreamWriteError();
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}
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//=======================================================================
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//function : BeginWritePersistentObjectData
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//purpose :
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//=======================================================================
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void FSD_CmpFile::BeginWritePersistentObjectData()
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{
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if (myStream.bad()) throw Storage_StreamWriteError();
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}
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//=======================================================================
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//function : BeginWriteObjectData
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//purpose :
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//=======================================================================
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void FSD_CmpFile::BeginWriteObjectData()
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{
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if (myStream.bad()) throw Storage_StreamWriteError();
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}
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//=======================================================================
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//function : EndWriteObjectData
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//purpose :
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//=======================================================================
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void FSD_CmpFile::EndWriteObjectData()
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{
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if (myStream.bad()) throw Storage_StreamWriteError();
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}
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//=======================================================================
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//function : EndWritePersistentObjectData
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//purpose :
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//=======================================================================
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void FSD_CmpFile::EndWritePersistentObjectData()
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{
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if (myStream.bad()) throw Storage_StreamWriteError();
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}
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//=======================================================================
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//function : ReadPersistentObjectHeader
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//purpose :
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//=======================================================================
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void FSD_CmpFile::ReadPersistentObjectHeader(Standard_Integer& aRef,
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Standard_Integer& aType)
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{
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char c = '\0';
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myStream.get(c);
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while (c != '#') {
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if (IsEnd() || (c != ' ') || (c == '\r') || (c == '\n')) {
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throw Storage_StreamFormatError();
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}
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myStream.get(c);
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}
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if (!(myStream >> aRef)) throw Storage_StreamTypeMismatchError();
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myStream.get(c);
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while (c != '%') {
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if (IsEnd() || (c != ' ') || (c == '\r') || (c == '\n')) {
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throw Storage_StreamFormatError();
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}
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myStream.get(c);
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}
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if (!(myStream >> aType)) throw Storage_StreamTypeMismatchError();
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// cout << "REF:" << aRef << " TYPE:"<< aType << endl;
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}
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//=======================================================================
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//function : BeginReadPersistentObjectData
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//purpose :
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//=======================================================================
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void FSD_CmpFile::BeginReadPersistentObjectData()
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{
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//cout << "BeginReadPersistentObjectData" << endl;
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}
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//=======================================================================
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//function : BeginReadObjectData
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//purpose :
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//=======================================================================
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void FSD_CmpFile::BeginReadObjectData()
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{
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// cout << "BeginReadObjectData" << endl;
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}
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//=======================================================================
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//function : EndReadObjectData
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//purpose :
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//=======================================================================
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void FSD_CmpFile::EndReadObjectData()
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{
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// cout << "EndReadObjectData" << endl;
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}
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//=======================================================================
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//function : EndReadPersistentObjectData
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//purpose :
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//=======================================================================
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void FSD_CmpFile::EndReadPersistentObjectData()
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{
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char c = '\0';
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myStream.get(c);
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while (c != '\n' && (c != '\r')) {
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if (IsEnd() || (c != ' ')) {
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throw Storage_StreamFormatError();
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}
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myStream.get(c);
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}
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if (c == '\r') {
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myStream.get(c);
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}
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// cout << "EndReadPersistentObjectData" << endl;
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}
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