more docs for stream fncs (#183)

mux/mux.go

@@ -28,6 +28,13 @@ type MuxedStream interface {
 	//
 	// Close may be asynchronous and _does not_ guarantee receipt of the
 	// data.
+	//
+	// Close closes the stream for both reading and writing.
+	// Close is equivalent to calling `CloseRead` and `CloseWrite`. Importantly, Close will not wait for any form of acknowledgment.
+	// If acknowledgment is required, the caller must call `CloseWrite`, then wait on the stream for a response (or an EOF),
+	// then call Close() to free the stream object.
+	//
+	// When done with a stream, the user must call either Close() or `Reset()` to discard the stream, even after calling `CloseRead` and/or `CloseWrite`.
 	io.Closer
 
 	// CloseWrite closes the stream for writing but leaves it open for
@@ -40,6 +47,11 @@ type MuxedStream interface {
 	// CloseRead closes the stream for reading but leaves it open for
 	// writing.
 	//
+	// When CloseRead is called, all in-progress Read calls are interrupted with a non-EOF error and
+	// no further calls to Read will succeed.
+	//
+	// The handling of new incoming data on the stream after calling this function is implementation defined.
+	//
 	// CloseRead does not free the stream, users must still call Close or
 	// Reset.
 	CloseRead() error