fix: Request timeout for gthread workers (#1)

* ci: drop unsupported versions

* fix: a *dirty* request timeout for gthread workers

* fix: drain current futures before exiting

* fix: avoid accepting new connections completely

* refactor: Just rely on graceful_timeout

This has minor side effect of no progress on accepted BUT not "read"
reqeusts. But I feel this makes code simpler and less prone to bugs.

These time outs should be *rare* and fixed anyway.

.github/workflows/tox.yml

@@ -21,16 +21,9 @@ jobs:
          - macos-13
          # Not testing Windows, because tests need Unix-only fcntl, grp, pwd, etc.
         python-version:
-         # CPython <= 3.7 is EoL since 2023-06-27
-         - "3.7"
-         - "3.8"
-         - "3.9"
          - "3.10"
          - "3.11"
          - "3.12"
-         # PyPy <= 3.8 is EoL since 2023-06-16
-         - "pypy-3.9"
-         - "pypy-3.10"
         include:
          # Note: potentially "universal2" release
          # https://github.com/actions/runner-images/issues/9741

gunicorn/workers/gthread.py

@@ -107,6 +107,7 @@ class ThreadWorker(base.Worker):
 
     def _wrap_future(self, fs, conn):
         fs.conn = conn
+        fs._request_timeout = time.monotonic() + self.cfg.timeout
         self.futures.append(fs)
         fs.add_done_callback(self.finish_request)
 
@@ -230,6 +231,14 @@ class ThreadWorker(base.Worker):
             # handle keepalive timeouts
             self.murder_keepalived()
 
+            # `gthread` does not implement ANY kind of request timeout, the
+            # simplest request timeout will kill the entire worker.
+            current_time = time.monotonic()
+            for fut in self.futures:
+                if current_time > fut._request_timeout:
+                    self.alive = False
+                    self.log.error("A request timed out. Exiting.")
+
         self.tpool.shutdown(False)
         self.poller.close()
 

tox.ini

@@ -1,6 +1,6 @@
 [tox]
 envlist =
-  py{37,38,39,310,311,312,py3},
+  py{310,311,312,py3},
   lint,
   docs-lint,
   pycodestyle,