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[block-sync] Don't hold client-cache lock while connecting #3197

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Merged
merged 1 commit into from
Jul 22, 2024
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[block-sync] Don't hold client-cache lock while connecting #3197

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3 changes: 2 additions & 1 deletion lightning-block-sync/src/rest.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -34,7 +34,8 @@ impl RestClient {
{
let host = format!("{}:{}", self.endpoint.host(), self.endpoint.port());
let uri = format!("{}/{}", self.endpoint.path().trim_end_matches("/"), resource_path);
let mut client = if let Some(client) = self.client.lock().unwrap().take() {
let reserved_client = self.client.lock().unwrap().take();
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Want to note that it's a bit weird this is race-y as we'd create and drop unnecessary HTTPClients for parallel calls, but this is pre-existing anyways.

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I mean except for the extra memory usage or too-many-parallel-calls it doesn't really matter. Caching the TCP socket is nice, but certainly not a requirement for things to work.

let mut client = if let Some(client) = reserved_client {
client
} else {
HttpClient::connect(&self.endpoint)?
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3 changes: 2 additions & 1 deletion lightning-block-sync/src/rpc.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -77,7 +77,8 @@ impl RpcClient {
"id": &self.id.fetch_add(1, Ordering::AcqRel).to_string()
});

let mut client = if let Some(client) = self.client.lock().unwrap().take() {
let reserved_client = self.client.lock().unwrap().take();
let mut client = if let Some(client) = reserved_client {
client
} else {
HttpClient::connect(&self.endpoint)?
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