// 同步加载指定 id 的数据
protected override byte[] LoadImpl(IDType id)
{
string f = Path.Combine(dir, Utils1.MD5(id.ToString()));
if (File.Exists(f))
{
BinaryReader r = new BinaryReader(new FileStream(f, FileMode.Open));
byte[] data = r.ReadBytes((int)r.BaseStream.Length);
r.Close();
return(data);
}
else
{
return(null);
}
}
// 将缓冲同步落地保存
protected override void UpdateImpl(IDType id, T d, byte[] buff)
{
string f = Path.Combine(dir, Utils1.MD5(id.ToString()));
string tmpF = tmpF = f + ".tmp";
BinaryWriter w = new BinaryWriter(new FileStream(tmpF, FileMode.Create));
w.Write(buff, 0, buff.Length);
w.Close();
if (File.Exists(f))
{
File.Delete(f);
}
File.Move(tmpF, f);
}
// 同步删除指定 id 的数据
protected override void DeleteImpl(IDType id)
{
string f = Path.Combine(dir, Utils1.MD5(id.ToString()));
File.Delete(f);
}