/// <summary>Clean direct buffer pool</summary>
private void CleanBufferPool()
{
ByteBuffer buf;
while ((buf = bufferPool.Poll()) != null)
{
CryptoStreamUtils.FreeDB(buf);
}
}
/// <exception cref="System.IO.IOException"/>
public CryptoInputStream(InputStream @in, CryptoCodec codec, int bufferSize, byte
[] key, byte[] iv, long streamOffset)
: base(@in)
{
// Underlying stream offset.
CryptoStreamUtils.CheckCodec(codec);
this.bufferSize = CryptoStreamUtils.CheckBufferSize(codec, bufferSize);
this.codec = codec;
this.key = key.MemberwiseClone();
this.initIV = iv.MemberwiseClone();
this.iv = iv.MemberwiseClone();
this.streamOffset = streamOffset;
isByteBufferReadable = @in is ByteBufferReadable;
isReadableByteChannel = @in is ReadableByteChannel;
inBuffer = ByteBuffer.AllocateDirect(this.bufferSize);
outBuffer = ByteBuffer.AllocateDirect(this.bufferSize);
decryptor = GetDecryptor();
ResetStreamOffset(streamOffset);
}
/// <exception cref="System.IO.IOException"/>
public CryptoOutputStream(OutputStream @out, CryptoCodec codec, int bufferSize, byte
[] key, byte[] iv, long streamOffset)
: base(@out)
{
// Underlying stream offset.
CryptoStreamUtils.CheckCodec(codec);
this.bufferSize = CryptoStreamUtils.CheckBufferSize(codec, bufferSize);
this.codec = codec;
this.key = key.MemberwiseClone();
this.initIV = iv.MemberwiseClone();
this.iv = iv.MemberwiseClone();
inBuffer = ByteBuffer.AllocateDirect(this.bufferSize);
outBuffer = ByteBuffer.AllocateDirect(this.bufferSize);
this.streamOffset = streamOffset;
try
{
encryptor = codec.CreateEncryptor();
}
catch (GeneralSecurityException e)
{
throw new IOException(e);
}
UpdateEncryptor();
}
/// <exception cref="System.IO.IOException"/>
public CryptoInputStream(InputStream @in, CryptoCodec codec, int bufferSize, byte
[] key, byte[] iv)
: this(@in, codec, bufferSize, key, iv, CryptoStreamUtils.GetInputStreamOffset(@in
))
{
}
/// <summary>Forcibly free the direct buffers.</summary>
private void FreeBuffers()
{
CryptoStreamUtils.FreeDB(inBuffer);
CryptoStreamUtils.FreeDB(outBuffer);
CleanBufferPool();
}
/// <exception cref="System.IO.IOException"/>
public CryptoInputStream(InputStream @in, CryptoCodec codec, byte[] key, byte[] iv
)
: this(@in, codec, CryptoStreamUtils.GetBufferSize(codec.GetConf()), key, iv)
{
}
/// <exception cref="System.IO.IOException"/>
public CryptoOutputStream(OutputStream @out, CryptoCodec codec, byte[] key, byte[]
iv, long streamOffset)
: this(@out, codec, CryptoStreamUtils.GetBufferSize(codec.GetConf()), key, iv, streamOffset
)
{
}
