Module grin_util::read_write

Custom impls of read_exact and write_all to work around async stream restrictions.

Functions

read_exact	The default implementation of read_exact is useless with an async stream (TcpStream) as it will return as soon as something has been read, regardless of whether the buffer has been filled (and then errors). This implementation will block until it has read exactly len bytes and returns them as a vec<u8>. Except for a timeout, this implementation will never return a partially filled buffer.
write_all	Same as read_exact but for writing.