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return a net.Error when opening streams

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net.Error.Temporary() will be true if no stream can be opened when the
peer's stream limit is reached.
This commit is contained in:
Marten Seemann 2019-01-06 17:18:43 +07:00
parent 8ac77be934
commit a2e48e204b
7 changed files with 85 additions and 37 deletions
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14
interface.go
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@ -120,20 +120,22 @@ type Session interface {
// AcceptUniStream returns the next unidirectional stream opened by the peer, blocking until one is available.
AcceptUniStream() (ReceiveStream, error)
// OpenStream opens a new bidirectional QUIC stream.
// It returns a special error when the peer's concurrent stream limit is reached.
// There is no signaling to the peer about new streams:
// The peer can only accept the stream after data has been sent on the stream.
// TODO(#1152): Enable testing for the special error
// If the error is non-nil, it satisfies the net.Error interface.
// When reaching the peer's stream limit, err.Temporary() will be true.
OpenStream() (Stream, error)
// OpenStreamSync opens a new bidirectional QUIC stream.
// It blocks until the peer's concurrent stream limit allows a new stream to be opened.
// It blocks until a new stream can be opened.
// If the error is non-nil, it satisfies the net.Error interface.
OpenStreamSync() (Stream, error)
// OpenUniStream opens a new outgoing unidirectional QUIC stream.
// It returns a special error when the peer's concurrent stream limit is reached.
// TODO(#1152): Enable testing for the special error
// If the error is non-nil, it satisfies the net.Error interface.
// When reaching the peer's stream limit, Temporary() will be true.
OpenUniStream() (SendStream, error)
// OpenUniStreamSync opens a new outgoing unidirectional QUIC stream.
// It blocks until the peer's concurrent stream limit allows a new stream to be opened.
// It blocks until a new stream can be opened.
// If the error is non-nil, it satisfies the net.Error interface.
OpenUniStreamSync() (SendStream, error)
// LocalAddr returns the local address.
LocalAddr() net.Addr