/// <summary>
/// 读取或写入区块
/// </summary>
/// <param name="BlockIndex">区块序号</param>
public FileBlock this[int BlockIndex]
{
get
{
FileBlock output;
if (_EnabledIOBuffer)
{
bool IsInBuf;
lock (_IOBuffer)
IsInBuf = _IOBuffer.TryGetValue(BlockIndex, out output);
if (IsInBuf)
{
return(output);
}
else
{
output = new FileBlock(_task, BlockIndex, true);
BeginFillIOBuffer(BlockIndex + 1, null, null);
}
}
else
{
output = new FileBlock(_task, BlockIndex, true);
}
return(output);
}
set
{
if (BlockIndex != value.Index)
{
throw new FileBlockException("Bad Index!", FileBlockException.ErrorCode.BadIndex);
}
Write(value);
}
}
/// <summary>
/// 写入区块
/// </summary>
/// <param name="value">区块对象</param>
public void Write(FileBlock value)
{
if (_EnabledIOBuffer)
{
if (_IOBuffer.Count >= _IOBufferSize)
{
WriteAllBlock();
}
lock (_IOBuffer)
_IOBuffer.Add(value.Index, value);
}
else
{
value.Write();
}
}