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our TCP listener is nonblocking so we *must* set the accepted stream to blocking explicitly... (#3154)

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Antioch Peverell 2019-11-30 23:56:23 +00:00 committed by hashmap
parent c46343f279
commit 7f7d51a748
1 changed files with 8 additions and 0 deletions
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8
p2p/src/serv.rs
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@ -84,6 +84,14 @@ impl Server {
match listener.accept() {
Ok((stream, peer_addr)) => {
// We want out TCP stream to be in blocking mode.
// The TCP listener is in nonblocking mode so we *must* explicitly
// move the accepted TCP stream into blocking mode (or all kinds of
// bad things can and will happen).
// A nonblocking TCP listener will accept nonblocking TCP streams which
// we do not want.
stream.set_nonblocking(false)?;
let peer_addr = PeerAddr(peer_addr);
if self.check_undesirable(&stream) {