/// <inheritdoc/>
public byte ReadByte(long index)
{
streamsLock.EnterReadLock();
try
{
IDataStreamHelpers.ReadByteArgsCheck(this, index);
int i = 0;
while (index >= 0)
{
var stream = streams[i++];
if (index >= stream.Length)
{
index -= stream.Length;
}
else
{
return(stream.ReadByte(index));
}
}
// unreachable code
throw new ArgumentOutOfRangeException();
}
finally
{
streamsLock.ExitReadLock();
}
}
/// <inheritdoc />
/// <remarks>Assumes nearly sequential access.</remarks>
public byte ReadByte(long index)
{
IDataStreamHelpers.ReadByteArgsCheck(this, index);
byte ret;
lock (cacheLock)
{
if (!cache.TryReadByte(index, out ret))
{
ByteCache.FillCache callback = delegate(byte[] buffer, out long cacheStart, out int cacheLength)
{
using (var reader = log.ReaderPool.Get())
{
// the file is more likely to be read from the beginning to the end
cacheStart = Math.Max(0, index - 32);
cacheLength = (int)Math.Min(buffer.Length, Math.Min(int.MaxValue, length - cacheStart));
reader.ReadFileDataToBuffer(hint, buffer, cacheStart, cacheLength, 0);
ret = buffer[index - cacheStart];
}
};
cache.Cache(callback);
}
}
return(ret);
}
/// <inheritdoc/>
public byte ReadByte(long index)
{
IDataStreamHelpers.ReadByteArgsCheck(this, index);
lock (streamLock)
{
stream.Position = index;
return((byte)stream.ReadByte());
}
}
/// <inheritdoc/>
public byte ReadByte(long index)
{
IDataStreamHelpers.ReadByteArgsCheck(this, index);
byte ret;
lock (dataLock)
{
if (cache.TryReadByte(index, out ret))
{
return(ret);
}
seekToPosition(index);
cache.TryReadByte(index, out ret);
return(ret);
}
}
/// <inheritdoc/>
public byte ReadByte(long index)
{
IDataStreamHelpers.ReadByteArgsCheck(this, index);
return(stream.ReadByte(offset + index));
}
/// <inheritdoc/>
public byte ReadByte(long index)
{
IDataStreamHelpers.ReadByteArgsCheck(this, index);
return arr[index];
}
