QUIC QuicReceiveStream read() panics when peer disconnects

Deno panics when I'm waiting for a stream after the peer has disconnected.
The panic cannot be caught with a try/catch.

Code:

const reader = (await conn.incomingUnidirectionalStreams.getReader().read()).value.getReader();
while(true) {
  try {
    const msg = await reader.read();
  }catch(e) {
    console.error(e);
  }
}

const reader = (await conn.incomingUnidirectionalStreams.getReader().read()).value.getReader();
while(true) {
  try {
    const msg = await reader.read();
  }catch(e) {
    console.error(e);
  }
}

Output:

NotConnected: connection lost
    at async Object.pull (ext:deno_web/06_streams.js:941:27) {
  name: "NotConnected",
  code: "ENOTCONN"
}
error: Uncaught (in promise) Error: timed out

NotConnected: connection lost
    at async Object.pull (ext:deno_web/06_streams.js:941:27) {
  name: "NotConnected",
  code: "ENOTCONN"
}
error: Uncaught (in promise) Error: timed out

Many thanks in advance. I really appreciate the new feature!

Deno•14mo ago•

2 replies

Nop

QUIC QuicReceiveStream read() panics when peer disconnects

Deno panics when I'm waiting for a stream after the peer has disconnected.
The panic cannot be caught with a try/catch.

Code:

const reader = (await conn.incomingUnidirectionalStreams.getReader().read()).value.getReader();
while(true) {
  try {
    const msg = await reader.read();
  }catch(e) {
    console.error(e);
  }
}

const reader = (await conn.incomingUnidirectionalStreams.getReader().read()).value.getReader();
while(true) {
  try {
    const msg = await reader.read();
  }catch(e) {
    console.error(e);
  }
}

Output:

NotConnected: connection lost
    at async Object.pull (ext:deno_web/06_streams.js:941:27) {
  name: "NotConnected",
  code: "ENOTCONN"
}
error: Uncaught (in promise) Error: timed out

NotConnected: connection lost
    at async Object.pull (ext:deno_web/06_streams.js:941:27) {
  name: "NotConnected",
  code: "ENOTCONN"
}
error: Uncaught (in promise) Error: timed out

Many thanks in advance. I really appreciate the new feature!

QUIC QuicReceiveStream read() panics when peer disconnects

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