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client/network: Remove option to disable yamux flow control (#7358)

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With the `OnRead` flow control option yamux "send[s] window updates only
when data is read on the receiving end" and not as soon as "a Stream's
receive window drops to 0".

Yamux flow control has proven itself. This commit removes the feature
flag. Yamux flow control is now always enabled.
This commit is contained in:
Max Inden
2020-10-19 21:43:32 +02:00
committed by GitHub
parent 9f61b5b9f4
commit bd2dbc055c
6 changed files with 8 additions and 23 deletions
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substrate/client/network/src/transport.rs
+3 -7
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@@ -41,7 +41,6 @@ pub fn build_transport(
keypair: identity::Keypair,
memory_only: bool,
wasm_external_transport: Option<wasm_ext::ExtTransport>,
use_yamux_flow_control: bool
) -> (Boxed<(PeerId, StreamMuxerBox), io::Error>, Arc<BandwidthSinks>) {
// Build the base layer of the transport.
let transport = if let Some(t) = wasm_external_transport {
@@ -109,12 +108,9 @@ pub fn build_transport(
mplex_config.max_buffer_len(usize::MAX);
let mut yamux_config = libp2p::yamux::Config::default();
if use_yamux_flow_control {
// Enable proper flow-control: window updates are only sent when
// buffered data has been consumed.
yamux_config.set_window_update_mode(libp2p::yamux::WindowUpdateMode::OnRead);
}
// Enable proper flow-control: window updates are only sent when
// buffered data has been consumed.
yamux_config.set_window_update_mode(libp2p::yamux::WindowUpdateMode::OnRead);
core::upgrade::SelectUpgrade::new(yamux_config, mplex_config)
.map_inbound(move |muxer| core::muxing::StreamMuxerBox::new(muxer))