/// <summary>
/// Opens a part stream for write-only access
/// </summary>
public PartStreamImpl(CompoundStream ownerStream, int index, int blockSize)
{
Index = index;
CanRead = false;
CanWrite = true;
m_ownerStream = ownerStream;
BlockSize = blockSize;
CurrentBlockWriteBufferStream = new MemoryStream();
}
/// <summary>
/// Opens a part stream for read-only access
/// </summary>
public PartStreamImpl(CompoundStream ownerStream, int index, int blockSize, long length, long[] blockStarts)
{
Index = index;
CanRead = true;
CanWrite = false;
m_ownerStream = ownerStream;
BlockSize = blockSize;
m_length = length;
m_blockStarts.AddRange(blockStarts);
}
public static PartStreamImpl ReadPartStream(CompoundStream compoundStream, int index, BuildXLReader reader)
{
var blockSize = reader.ReadInt32Compact();
var partLength = reader.ReadInt64Compact();
var blockCount = reader.ReadInt32Compact();
long[] blockStarts = new long[blockCount];
long lastBlockStart = 0;
for (int i = 0; i < blockCount; i++)
{
var blockStart = reader.ReadInt64Compact() + lastBlockStart;
blockStarts[i] = blockStart;
lastBlockStart = blockStart;
}
return(new PartStreamImpl(compoundStream, index, blockSize, partLength, blockStarts));
}
