Bittorrent, peer handshake response is painfully slow. #ca4

Challenges
8

Okai, i also tried using:

var a = try reader.readBytesNoEof(@sizeOf(HandShake));
const resp_handshake = HandShake.createFromBuffer(&a);

and seems to also work, so the problem had to be:

const response: []u8 = try reader.readAllAlloc(allocator, std.math.maxInt(usize));

which might be allocating to many wasted memory.