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Handle closed report channel without panic #885

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Handle closed report channel without panic #885

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99 changes: 73 additions & 26 deletions src/client.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -1026,6 +1026,10 @@ pub(crate) fn is_cancel_error(res: &Result<RequestResult, ClientError>) -> bool
matches!(res, Err(ClientError::Deadline)) || is_too_many_open_files(res)
}

pub(crate) fn try_send_report<T>(report_tx: &kanal::Sender<T>, report: T) -> bool {
report_tx.send(report).is_ok()
}

/// Check error was "Too many open file"
fn is_too_many_open_files(res: &Result<RequestResult, ClientError>) -> bool {
res.as_ref()
Expand Down Expand Up @@ -1075,7 +1079,9 @@ async fn work_http2_once(
if let Some(start_latency_correction) = start_latency_correction {
set_start_latency_correction(&mut res, start_latency_correction);
}
report_tx.send(res).unwrap();
if !try_send_report(report_tx, res) {

@ahmed-mekky ahmed-mekky Jun 18, 2026 •
edited
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why didn't you just do

if !report_tx.send(res).is_ok() {

the function looks like an unneeded layer of abstraction here

return (true, is_reconnect);
}
(is_cancel, is_reconnect)
}

Expand Down Expand Up @@ -1220,7 +1226,9 @@ pub async fn work(
}
Err(err) => {
if counter.fetch_add(1, Ordering::Relaxed) < n_tasks {
report_tx.send(Err(err)).unwrap();
if !try_send_report(&report_tx, Err(err)) {
return;
}
} else {
return;
}
Expand All @@ -1245,7 +1253,9 @@ pub async fn work(
while counter.fetch_add(1, Ordering::Relaxed) < n_tasks {
let res = client.work_http1(&mut client_state).await;
let is_cancel = is_cancel_error(&res);
report_tx.send(res).unwrap();
if !try_send_report(&report_tx, res) {
break;
}
if is_cancel {
break;
}
Expand Down Expand Up @@ -1386,7 +1396,9 @@ pub async fn work_with_qps(
Err(err) => {
// Consume a task
if let Ok(()) = rx.recv().await {
report_tx.send(Err(err)).unwrap();
if !try_send_report(&report_tx, Err(err)) {
return;
}
} else {
return;
}
Expand All @@ -1413,7 +1425,9 @@ pub async fn work_with_qps(
while let Ok(()) = rx.recv().await {
let res = client.work_http1(&mut client_state).await;
let is_cancel = is_cancel_error(&res);
report_tx.send(res).unwrap();
if !try_send_report(&report_tx, res) {
break;
}
if is_cancel {
break;
}
Expand Down Expand Up @@ -1560,7 +1574,9 @@ pub async fn work_with_qps_latency_correction(
Err(err) => {
// Consume a task
if rx.recv().await.is_ok() {
report_tx.send(Err(err)).unwrap();
if !try_send_report(&report_tx, Err(err)) {
return;
}
} else {
return;
}
Expand Down Expand Up @@ -1588,7 +1604,9 @@ pub async fn work_with_qps_latency_correction(
let mut res = client.work_http1(&mut client_state).await;
set_start_latency_correction(&mut res, start);
let is_cancel = is_cancel_error(&res);
report_tx.send(res).unwrap();
if !try_send_report(&report_tx, res) {
break;
}
if is_cancel {
break;
}
Expand Down Expand Up @@ -1697,7 +1715,9 @@ pub async fn work_until(
}
}
_ = s.acquire() => {
report_tx.send(Err(ClientError::Deadline)).unwrap();
if !try_send_report(&report_tx, Err(ClientError::Deadline)) {
return;
}
connection_gone = true;
}
}
Expand All @@ -1708,7 +1728,9 @@ pub async fn work_until(
}

Err(err) => {
report_tx.send(Err(err)).unwrap();
if !try_send_report(&report_tx, Err(err)) {
break;
}
if s.is_closed() {
break;
}
Expand Down Expand Up @@ -1739,7 +1761,9 @@ pub async fn work_until(
loop {
let res = client.work_http1(&mut client_state).await;
let is_cancel = is_cancel_error(&res);
report_tx.send(res).unwrap();
if !try_send_report(&report_tx, res) {
break;
}
if is_cancel || is_end.load(Relaxed) {
break;
}
Expand All @@ -1760,8 +1784,9 @@ pub async fn work_until(
f.abort();
if let Err(e) = f.await
&& e.is_cancelled()
&& !try_send_report(&report_tx, Err(ClientError::Deadline))
{
report_tx.send(Err(ClientError::Deadline)).unwrap();
break;
}
}
}
Expand Down Expand Up @@ -1901,7 +1926,9 @@ pub async fn work_until_with_qps(
}
}
_ = s.acquire() => {
report_tx.send(Err(ClientError::Deadline)).unwrap();
if !try_send_report(&report_tx, Err(ClientError::Deadline)) {
return;
}
connection_gone = true;
}
}
Expand All @@ -1913,7 +1940,9 @@ pub async fn work_until_with_qps(
Err(err) => {
// Consume a task
if rx.recv().await.is_ok() {
report_tx.send(Err(err)).unwrap();
if !try_send_report(&report_tx, Err(err)) {
return;
}
} else {
return;
}
Expand Down Expand Up @@ -1949,7 +1978,9 @@ pub async fn work_until_with_qps(
while let Ok(()) = rx.recv().await {
let res = client.work_http1(&mut client_state).await;
let is_cancel = is_cancel_error(&res);
report_tx.send(res).unwrap();
if !try_send_report(&report_tx, res) {
break;
}
if is_cancel || is_end.load(Relaxed) {
break;
}
Expand All @@ -1970,8 +2001,9 @@ pub async fn work_until_with_qps(
f.abort();
if let Err(e) = f.await
&& e.is_cancelled()
&& !try_send_report(&report_tx, Err(ClientError::Deadline))
{
report_tx.send(Err(ClientError::Deadline)).unwrap();
break;
}
}
}
Expand Down Expand Up @@ -2109,7 +2141,9 @@ pub async fn work_until_with_qps_latency_correction(
}
}
_ = s.acquire() => {
report_tx.send(Err(ClientError::Deadline)).unwrap();
if !try_send_report(&report_tx, Err(ClientError::Deadline)) {
return;
}
connection_gone = true;
}
}
Expand All @@ -2121,7 +2155,9 @@ pub async fn work_until_with_qps_latency_correction(

Err(err) => {
if rx.recv().await.is_ok() {
report_tx.send(Err(err)).unwrap();
if !try_send_report(&report_tx, Err(err)) {
return;
}
} else {
return;
}
Expand Down Expand Up @@ -2158,7 +2194,9 @@ pub async fn work_until_with_qps_latency_correction(
let mut res = client.work_http1(&mut client_state).await;
set_start_latency_correction(&mut res, start);
let is_cancel = is_cancel_error(&res);
report_tx.send(res).unwrap();
if !try_send_report(&report_tx, res) {
break;
}
if is_cancel || is_end.load(Relaxed) {
break;
}
Expand All @@ -2179,8 +2217,9 @@ pub async fn work_until_with_qps_latency_correction(
f.abort();
if let Err(e) = f.await
&& e.is_cancelled()
&& !try_send_report(&report_tx, Err(ClientError::Deadline))
{
report_tx.send(Err(ClientError::Deadline)).unwrap();
break;
}
}
}
Expand All @@ -2200,7 +2239,7 @@ pub mod fast {
use crate::{
client::{
ClientError, ClientStateHttp1, ClientStateHttp2, HttpWorkType, is_cancel_error,
is_hyper_error, set_connection_time, setup_http2,
is_hyper_error, set_connection_time, setup_http2, try_send_report,
},
pcg64si::Pcg64Si,
result_data::ResultData,
Expand Down Expand Up @@ -2330,7 +2369,13 @@ pub mod fast {
}
};

report_tx.send(result_data).unwrap();
let sent = try_send_report(
&report_tx,
result_data,
);
if !sent {
return true;
}
is_cancel
})
})
Expand Down Expand Up @@ -2366,7 +2411,7 @@ pub mod fast {
}
}
if has_err {
report_tx.send(result_data_err).unwrap();
let _sent = try_send_report(&report_tx, result_data_err);
}
}));
}
Expand Down Expand Up @@ -2412,7 +2457,7 @@ pub mod fast {
}
} => {}
}
report_tx.send(result_data).unwrap();
let _sent = try_send_report(&report_tx, result_data);
}));
}
rt.block_on(local);
Expand Down Expand Up @@ -2547,7 +2592,9 @@ pub mod fast {
}
};

report_tx.send(result_data).unwrap();
if !try_send_report(&report_tx, result_data) {
return true;
}
is_cancel
})
})
Expand Down Expand Up @@ -2582,7 +2629,7 @@ pub mod fast {
}
}
if has_err {
report_tx.send(result_data_err).unwrap();
let _sent = try_send_report(&report_tx, result_data_err);
}
}));
}
Expand Down Expand Up @@ -2633,7 +2680,7 @@ pub mod fast {
result_data.push(Err(ClientError::Deadline));
}
}
report_tx.send(result_data).unwrap();
let _sent = try_send_report(&report_tx, result_data);
}));
}
rt.block_on(local);
Expand Down
20 changes: 14 additions & 6 deletions src/client_h3.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -41,7 +41,7 @@ pub enum Http3Error {
use crate::client::QueryLimit;
use crate::client::{
Client, ClientError, ConnectionTime, RequestResult, Stream, is_cancel_error,
set_connection_time, set_start_latency_correction,
set_connection_time, set_start_latency_correction, try_send_report,
};
use crate::pcg64si::Pcg64Si;
use crate::result_data::ResultData;
Expand Down Expand Up @@ -341,7 +341,9 @@ async fn create_and_load_up_single_connection_http3(
}
}
_ = s.acquire() => {
report_tx.send(Err(ClientError::Deadline)).unwrap();
if !try_send_report(&report_tx, Err(ClientError::Deadline)) {
return;
}
connection_gone = true;
}
}
Expand All @@ -358,7 +360,9 @@ async fn create_and_load_up_single_connection_http3(
break;
// Consume a task
} else if rx.recv().await.is_ok() {
report_tx.send(Err(err)).unwrap();
if !try_send_report(&report_tx, Err(err)) {
return;
}
} else {
return;
}
Expand Down Expand Up @@ -426,7 +430,9 @@ pub(crate) async fn work_http3_once(
if let Some(start_latency_correction) = start_latency_correction {
set_start_latency_correction(&mut res, start_latency_correction);
}
report_tx.send(res).unwrap();
if !try_send_report(report_tx, res) {
return (true, is_reconnect);
}
(is_cancel, is_reconnect)
}

Expand Down Expand Up @@ -519,7 +525,9 @@ pub(crate) fn http3_connection_fast_work_until(
}
};

report_tx.send(result_data).unwrap();
if !try_send_report(&report_tx, result_data) {
return true;
}
is_cancel
})
})
Expand Down Expand Up @@ -559,7 +567,7 @@ pub(crate) fn http3_connection_fast_work_until(
}
}
if has_err {
report_tx.send(result_data_err).unwrap();
let _sent = try_send_report(&report_tx, result_data_err);
}
}));
}
Expand Down