\param[in] len bytes will be removed from the output side of the buffer

\param[in] buffer is the content to write to the TestFD

connect socket to a specified peer address \param[in] address is the peer's Address

\note If `mtu` is too small to hold the received datagram, this method throws a std::runtime_error

shut down a socket in the specified way \param[in] how can be `SHUT_RD`, `SHUT_WR`, or `SHUT_RDWR`; see [shutdown(2)](\ref man2::shutdown)

\param[in] ms_since_last_tick the number of milliseconds since the last call to this method

\param[in] timeout_ms is the timeout value passed to [poll(2)](\ref man2::poll); `wait_next_event` returns Result::Timeout if no fd is ready after the

Serialize a TCP segment and send it as the payload of a UDP datagram. \param[in] seg is the TCP segment to write

accept a new incoming connection \returns a new TCPSocket connected to the peer. \note This function blocks until a new connection is available

\param ackno The remote receiver's ackno (acknowledgment number) \param window_size The remote receiver's advertised window size

in SYN_SENT, send ACK and maybe RST

bind socket to a specified local address (usually to listen/accept) \param[in] address is a local Address to bind

underlying descriptor number

mark the socket as listening for incoming connections \param[in] backlog is the number of waiting connections to queue (see [listen(2)](\ref man2::lis

\brief Build a `struct addrinfo` containing hints for [getaddrinfo(3)](\ref man3::getaddrinfo) \param[in] ai_flags is the value of the `ai_flags` fiel

\brief relative seqno for the next byte to be sent

\details This function first attempts to parse a TCP segment from the next UDP payload recv()d from the socket. If this succeeds, it then checks that

\param[in] seqno is the sequence number of the segment \param[in] ackno is the acknowledgment number of the segment \param[in] begin is an iterator to

\brief Size of the string

\brief Call [socketpair](\ref man2::socketpair) and return connected Unix-domain sockets of specified type \param[in] type is the type of AF_UNIX sock

\param[in] ms_since_last_tick the number of milliseconds since the last call to this method

\returns the number of milliseconds since the program started

\param[in] seg the TCPSegment to send

closed flag state

\brief Make a copy to a new std::string

\returns a copy of this FileDescriptor

number of reads

\brief Set the listening flag \param[in] l is the new value for the flag

allow local address to be reused sooner, at the cost of some robustness \note Using `SO_REUSEADDR` may reduce the robustness of your application

number of writes

\param[in] addr points to a raw socket address \param[in] size is `addr`'s length

Construct from a NetworkInterface

BufferEmpty