public Stream CreateFile(string file, CompressionHint hint, DateTime lastWrite)
{
if (string.IsNullOrEmpty(file))
{
throw new ArgumentNullException(nameof(file));
}
if (m_writer == null)
{
throw new InvalidOperationException(Strings.SevenZipCompression.NoWriterError);
}
var entry = new WriterEntry(file, lastWrite);
if (hint != CompressionHint.Noncompressible)
{
if (m_lzma2Encoder == null)
{
if (m_lowOverheadMode)
{
m_lzma2Encoder = new ManagedLzma.LZMA.Master.SevenZip.ArchiveWriter.LzmaEncoder();
}
else
{
m_lzma2Encoder = new ManagedLzma.LZMA.Master.SevenZip.ArchiveWriter.Lzma2Encoder(m_threadCount, m_encoderProps);
}
m_lzma2Encoder.OnOutputThresholdReached += mLzma2Encoder_OnOutputThresholdReached;
m_lzma2Encoder.SetOutputThreshold(kStreamThreshold);
}
return(m_lzma2Encoder.BeginWriteFile(entry));
}
else
{
if (m_copyEncoder == null)
{
m_copyEncoder = new ManagedLzma.LZMA.Master.SevenZip.ArchiveWriter.PlainEncoder();
}
if (m_lzma2Encoder != null && m_lzma2Encoder == m_writer.CurrentEncoder)
{
m_lzma2Encoder.SetOutputThreshold(kStreamThreshold); // rearm threshold so we can switch back
}
if (m_writer.CurrentEncoder != m_copyEncoder)
{
m_writer.ConnectEncoder(m_copyEncoder);
}
return(m_copyEncoder.BeginWriteFile(entry));
}
}
public void Dispose()
{
if (m_archive != null)
{
m_archive = null;
}
if (m_reader != null)
{
try { m_reader.Close(); }
finally { m_reader = null; }
}
if (m_writer != null)
{
try
{
if (m_copyEncoder != null)
{
try
{
m_writer.ConnectEncoder(m_copyEncoder);
m_copyEncoder.Dispose();
}
finally { m_copyEncoder = null; }
}
if (m_lzma2Encoder != null)
{
try
{
m_writer.ConnectEncoder(m_lzma2Encoder);
m_lzma2Encoder.Dispose();
}
finally { m_lzma2Encoder = null; }
}
m_writer.WriteFinalHeader();
}
finally { m_writer = null; }
}
if (m_stream != null)
{
try { m_stream.Dispose(); }
finally { m_stream = null; }
}
}
public void Dispose()
{
if(m_archive != null)
m_archive = null;
if(m_reader != null)
try { m_reader.Close(); }
finally { m_reader = null; }
if(m_writer != null)
{
try
{
if(m_copyEncoder != null)
try
{
m_writer.ConnectEncoder(m_copyEncoder);
m_copyEncoder.Dispose();
}
finally { m_copyEncoder = null; }
if(m_lzma2Encoder != null)
try
{
m_writer.ConnectEncoder(m_lzma2Encoder);
m_lzma2Encoder.Dispose();
}
finally { m_lzma2Encoder = null; }
m_writer.WriteFinalHeader();
}
finally { m_writer = null; }
}
if(m_file != null)
try { m_file.Dispose(); }
finally { m_file = null; }
}
public Stream CreateFile(string file, CompressionHint hint, DateTime lastWrite)
{
if(string.IsNullOrEmpty(file))
throw new ArgumentNullException("file");
if(m_writer == null)
throw new InvalidOperationException(Strings.SevenZipCompression.NoWriterError);
var entry = new WriterEntry(file, lastWrite);
if(hint != CompressionHint.Noncompressible)
{
if(m_lzma2Encoder == null)
{
if(m_lowOverheadMode)
m_lzma2Encoder = new ManagedLzma.LZMA.Master.SevenZip.ArchiveWriter.LzmaEncoder();
else
m_lzma2Encoder = new ManagedLzma.LZMA.Master.SevenZip.ArchiveWriter.Lzma2Encoder(m_threadCount);
m_lzma2Encoder.OnOutputThresholdReached += mLzma2Encoder_OnOutputThresholdReached;
m_lzma2Encoder.SetOutputThreshold(kStreamThreshold);
}
return m_lzma2Encoder.BeginWriteFile(entry);
}
else
{
if(m_copyEncoder == null)
m_copyEncoder = new ManagedLzma.LZMA.Master.SevenZip.ArchiveWriter.PlainEncoder();
if(m_lzma2Encoder != null && m_lzma2Encoder == m_writer.CurrentEncoder)
m_lzma2Encoder.SetOutputThreshold(kStreamThreshold); // rearm threshold so we can switch back
if(m_writer.CurrentEncoder != m_copyEncoder)
m_writer.ConnectEncoder(m_copyEncoder);
return m_copyEncoder.BeginWriteFile(entry);
}
}
