internal void AppendAll(List <Block> blocks, bool ignoreCheckPointing = false)
{
lock (Flock)
{
var blockHeight = GetLastBlock().BlockNumber;
var f = File.Open(Node.NetParams.BlockChainFileName, FileMode.OpenOrCreate, FileAccess.ReadWrite);
var fi = File.Open(Node.NetParams.BlockChainFileName + ".index", FileMode.OpenOrCreate, FileAccess.ReadWrite);
using (var br = new BinaryReader(fi))
{
int count;
var size = 0;
if (fi.Length == 0)
{
count = 0;
}
else
{
count = br.ReadInt32();
size = br.ReadInt32();
br.ReadUInt64(); // Padding
}
using (var iw = new BinaryWriter(fi, Encoding.Default, true))
{
fi.Position = 0;
iw.Write(count);
iw.Write(size);
iw.Write((ulong)0);
foreach (var block in blocks)
{
if (block.BlockNumber != 0 || blockHeight > 0)
{
if (block.BlockNumber <= blockHeight)
{
continue;
}
}
if (!block.BlockIsValid())
{
return;
}
f.Position = f.Length;
fi.Position = fi.Length;
var pos = f.Position;
block.SaveToStream(f);
iw.Write(block.BlockNumber);
iw.Write(pos);
iw.Write((uint)(f.Position - pos));
iw.BaseStream.Position = 0;
count++;
iw.Write(count);
iw.Write(fi.Length);
if (!ignoreCheckPointing)
{
CheckPoints.AppendBlock(block);
}
}
}
}
f.Dispose();
}
}
internal bool Append(Block t)
{
lock (Flock)
{
var blockHeight = GetLastBlock().BlockNumber + 1;
var fi = File.Open(Node.NetParams.BlockChainFileName + ".index", FileMode.OpenOrCreate, FileAccess.ReadWrite);
try
{
var f = File.Open(Node.NetParams.BlockChainFileName, FileMode.OpenOrCreate, FileAccess.ReadWrite);
try
{
using (var br = new BinaryReader(fi, Encoding.Default, true))
{
int count;
if (fi.Length == 0)
{
count = 0;
}
else
{
count = br.ReadInt32();
var size = br.ReadInt64();
}
if (HasBlockChain(fi))
{
if (blockHeight < t.BlockNumber - 1)
{
return(false);
}
else if (blockHeight > t.BlockNumber)
{
return(true);
}
}
using (var iw = new BinaryWriter(fi, Encoding.Default, true))
{
iw.BaseStream.Position = iw.BaseStream.Length;
fi.Position = 0;
if (HasBlockChain(fi))
{
iw.Write(count + 1);
}
else
{
iw.Write(0);
}
f.Position = f.Length;
fi.Position = fi.Length;
var pos = f.Position;
t.SaveToStream(f);
if (HasBlockChain(fi))
{
iw.Write(t.BlockNumber);
}
else
{
iw.Write(0);
}
iw.Write(pos);
iw.Write((uint)(f.Position - pos));
}
CheckPoints.AppendBlock(t);
return(true);
}
}
finally
{
f.Dispose();
}
}
finally
{
fi.Dispose();
}
}
}
