tree d08d37aa98e5a7df29f645cca555384a814ee8f0
parent 53c4506638a09b811eb9ceb15d7e45e15a5f423d
author dmcardle <dmcardle@google.com> 1750268824 -0700
committer Copybara-Service <copybara-worker@google.com> 1750268888 -0700

Fix data races in end-to-end tests

I discovered that I can reliably reproduce data races in two end-to-end tests by repeating the tests 100 times with TSan enabled. Like so:

```
blaze test --config=tsan --runs_per_test=100 //third_party/quic/core/http:end_to_end_test
```

The fix I came up with is to pause the server before calling `GetServerConnection()` and `GetServerSession()`. Both of these functions call, or transitively call, `GetDispatcher()`, which requires that `server_thread_` is paused.

Perhaps we can leverage thread safety annotations to make the compiler check this in the future.

PiperOrigin-RevId: 772980453