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Add opt-in concurrent exec-server request dispatch (#36987)

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## Why

Sequential dispatch lets a long-running request block unrelated health checks
and cleanup on the same connection.

## What changed

- Add `--concurrent-requests <COUNT>` for local and remote exec-server
  connections, while retaining sequential dispatch when the option is omitted
  or set to `1`.
- Preserve handshake ordering before enabling concurrent dispatch.
- Reserve separate capacity for status, signal, terminate, and close requests so
  they remain responsive when ordinary request capacity is saturated.
- Drain queued client responses during disconnect and cancel outstanding
  request tasks during connection shutdown.

## Testing

- Cover CLI parsing and concurrency-limit validation.
- Verify default sequential behavior, pipelined handshake ordering, concurrent
  request progress, control-request responsiveness, and disconnect handling.

GitOrigin-RevId: 48e4b092e318204ed635543f01f9ee0e7df095fc
This commit is contained in:
Adam Perry @ OpenAI
2026-08-04 22:28:15 +00:00
committed by copyberry
parent 1d952f027e
commit eeae88d8a6
18 changed files with 836 additions and 99 deletions
Download Patch File Download Diff File Expand all files Collapse all files
codex-rs/exec-server/tests/http_request.rs
+30 -24
View File
@@ -162,18 +162,21 @@ async fn exec_server_http_request_uses_configured_system_proxy() -> anyhow::Resu
let proxy_listener = TcpListener::bind("127.0.0.1:0").await?;
let proxy_url = format!("http://{}", proxy_listener.local_addr()?);
let request_url = "http://exec-server-system-proxy.invalid/delegated?route=system";
let mut server = exec_server_with_env([
(SYSTEM_PROXY_REQUEST_URL_ENV, request_url),
(SYSTEM_PROXY_URL_ENV, proxy_url.as_str()),
("HTTP_PROXY", ""),
("http_proxy", ""),
("HTTPS_PROXY", ""),
("https_proxy", ""),
("ALL_PROXY", ""),
("all_proxy", ""),
("NO_PROXY", ""),
("no_proxy", ""),
])
let mut server = exec_server_with_env(
[
(SYSTEM_PROXY_REQUEST_URL_ENV, request_url),
(SYSTEM_PROXY_URL_ENV, proxy_url.as_str()),
("HTTP_PROXY", ""),
("http_proxy", ""),
("HTTPS_PROXY", ""),
("https_proxy", ""),
("ALL_PROXY", ""),
("all_proxy", ""),
("NO_PROXY", ""),
("no_proxy", ""),
],
&[],
)
.await?;
initialize_exec_server(&mut server).await?;
@@ -218,18 +221,21 @@ async fn exec_server_http_request_normalizes_unicode_hostname() -> anyhow::Resul
let proxy_url = format!("http://{}", proxy_listener.local_addr()?);
let request_url = "http://münich.invalid/mcp?route=unicode";
let normalized_url = "http://xn--mnich-kva.invalid/mcp?route=unicode";
let mut server = exec_server_with_env([
(SYSTEM_PROXY_REQUEST_URL_ENV, normalized_url),
(SYSTEM_PROXY_URL_ENV, proxy_url.as_str()),
("HTTP_PROXY", ""),
("http_proxy", ""),
("HTTPS_PROXY", ""),
("https_proxy", ""),
("ALL_PROXY", ""),
("all_proxy", ""),
("NO_PROXY", ""),
("no_proxy", ""),
])
let mut server = exec_server_with_env(
[
(SYSTEM_PROXY_REQUEST_URL_ENV, normalized_url),
(SYSTEM_PROXY_URL_ENV, proxy_url.as_str()),
("HTTP_PROXY", ""),
("http_proxy", ""),
("HTTPS_PROXY", ""),
("https_proxy", ""),
("ALL_PROXY", ""),
("all_proxy", ""),
("NO_PROXY", ""),
("no_proxy", ""),
],
&[],
)
.await?;
initialize_exec_server(&mut server).await?;