@[Link("ipc")]
lib LibIPC
  enum EventType
    Error         # Self explanatory.
    Connection    # New user.
    Disconnection # User disconnected.
    MessageRx     # Message received.
    MessageTx     # Message sent.
    Timer         # Timeout in the poll(2) function.
    External      # Message received from a non IPC socket.
    SwitchRx      # Switch subsystem: message received.
    SwitchTx      # Switch subsystem: message send.
  end

  fun init = ipc_context_init(Void**) : LibC::Int
  fun deinit = ipc_context_deinit(Void**) : Void

  fun service_init = ipc_service_init(Void*, LibC::Int*, LibC::Char*, LibC::UInt16T) : LibC::Int
  fun connect_service = ipc_connect_service(Void*, LibC::Int*, LibC::Char*, LibC::UInt16T) : LibC::Int

  # Context EventType index fd buffer buflen
  fun wait = ipc_wait_event(Void*, UInt8*, LibC::UInt64T*, LibC::Int*, UInt8*, LibC::UInt64T*) : LibC::Int

  # Sending a message NOW.
  # WARNING: doesn't wait the fd to become available.
  fun write = ipc_write(Void*, LibC::Int, UInt8*, LibC::UInt64T) : LibC::Int
  # Sending a message (will wait the fd to become available for IO operations).
  fun schedule = ipc_schedule(Void*, LibC::Int, UInt8*, LibC::UInt64T) : LibC::Int

  fun read = ipc_read_fd(Void*, LibC::Int, UInt8*, LibC::UInt64T*)
  fun timer = ipc_context_timer(Void*, LibC::Int)

  # Closing connections.
  fun close = ipc_close(Void*, LibC::UInt64T) : LibC::Int
  fun close_fd = ipc_close_fd(Void*, LibC::Int) : LibC::Int
  fun close_all = ipc_close_all(Void*) : LibC::Int
end