Method StreamFile

src/IECore/FileIndexedIO.cpp:72–148

};

FileIndexedIO::StreamFile::StreamFile( const std::string &filename, IndexedIO::OpenMode mode ) : StreamIndexedIO::StreamFile(mode), m_filename( filename ), m_endPosition(0)
{
	if (mode & IndexedIO::Write)
	{
		std::fstream *f = new std::fstream(filename.c_str(), std::ios::trunc | std::ios::binary | std::ios::in | std::ios::out);

		if (! f->is_open() )
		{
			throw IOException( "FileIndexedIO: Cannot open '" + filename + "' for writing" );
		}
		setInput( f, true, "");
	}
	else if (mode & IndexedIO::Append)
	{
		if (!fs::exists( filename.c_str() ) )
		{
			/// Create new file
			std::fstream *f = new std::fstream(filename.c_str(), std::ios::trunc | std::ios::binary | std::ios::in | std::ios::out );

			if (! f->is_open() )
			{
				throw IOException( "FileIndexedIO: Cannot open '" + filename + "' for append" );
			}
			setInput( f, true, "" );
		}
		else
		{
			/// Read existing file
			std::fstream *f = new std::fstream(filename.c_str(), std::ios::binary | std::ios::in | std::ios::out );

			if (! f->is_open() )
			{
				throw IOException( "FileIndexedIO: Cannot open '" + filename + "' for read " );
			}

			try
			{
				setInput( f, false, filename);
			}
			catch ( Exception &e )
			{
				e.prepend( "Opening file \"" + filename + "\" : " );
				throw;
			}
			catch (...)
			{
				throw IOException( "FileIndexedIO: Caught error reading file '" + filename + "'" );
			}

		}
	}
	else
	{
		assert( mode & IndexedIO::Read );
		std::fstream *f = new std::fstream(filename.c_str(), std::ios::binary | std::ios::in );

		if (! f->is_open() )
		{