Discovered via `bazel test
--test_env=GRPC_EXPERIMENTS=event_engine_client
//test/core/iomgr:endpoint_pair_test`. CI experiments can be enabled
generally on Windows once a few fixes and improvements are completed.
There are potentially surprising deployment bugs that can cause `EMFILE`
to be hit. For example, file descriptor limits can be easily reached if
- the round robin LB policy is used
- the load balancer hands out an assignment with a lot of backends
- using debian's default 1024 file descriptor limit.
To make such problems more apparent, we can pay special attention to
this error and log ERROR when it happens.
Related: b/265199104
I've replaced all use of `InternalError` here because none of these
scenarios would necessarily merit a bug or outage report.
Identified in the fuchsia test suite: calling the Listener's
`on_shutdown` method with anything other than `absl::OkStatus()` would
fail some assertions in the Posix-specialized client test suite if the
Oracle were implemented similarly. It _should_ fail the same way in the
listener test suite, but the statuses are ignored. I've fixed that.
Relands #32385 (reverted in #32419) with fixes.
The Windows build is clean on a test cherrypick: cl/511291828
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Co-authored-by: drfloob <drfloob@users.noreply.github.com>
A handful of problems were identified while writing the
WindowsEventEngine Listener. To make the listener review easier, these
fixes can be landed separately.
This is built upon https://github.com/grpc/grpc/pull/32376
Problems that are fixed in this PR:
* `OnConnectCompleted` held a Mutex while calling the user callback,
which can deadlock.
* The WinSocket and some associated data needs to remain alive after the
Endpoint destroyed, since Windows IOCP still needs to use some of that
data. Endpoint destruction and socket shutdown are now decoupled, with
the socket managed by a shared_ptr.
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Co-authored-by: drfloob <drfloob@users.noreply.github.com>
* [EventEngine] Update EventEngine client experiment
This bumps the expiry timeline, and guards certain poller behavior
behind the flag. The Epoll1 poller has been shown to not support fork
events, which is a problem for Python. Fixes for that are incoming, but
for now, the poller instantiation is guarded behind the flag as well.
* force the EE endpoint experiment on for posix EventEngine tests
* fix experiment code, it was not respecting forced values
* [༺ EventEngine༻ ] Specify requirements for Run* immediate execution
Also adds test suite tests that may catch non-conforming implementations
(Run called ~3200 times in case it's non-deterministic).
* fix
* verbiage; longer timeout
* fix int type comparison warning
* rm illegal term
* Automated change: Fix sanity tests
* disable tests
Co-authored-by: drfloob <drfloob@users.noreply.github.com>
* [iwyu] Add missing #include <type_traits> to fix build breakage with LLVM after e0a66116fc
* Update IWYU mappings
New libc++ doesn't provide <type_traits> when including <utility>.
* run iwyu
Co-authored-by: alexfh <alexfh@google.com>
* rename task-handle mutex
* rename TimerClosure
* tmp commit, building, not tested
* add test for client connection to a non-listening port
* fix posix EE tests
* re-fix windows test suite after posix compatibility
* (unfinished, backup): passing the suite's NonExistingListener client test
* remove redundant windows client test
* integrate IOCP worker loop
* initial commit of echo test tool; fixes
* move echo client to test_suite/tools; I do not yet like the setup, it's about time for a macro that generates all useful test/tool targets
* cleanup
* add --target arg to echo_client. requires URI
* Automated change: Fix sanity tests
* build fixes
* fix
* fix
* reviewer feedback
* warning fix
* delete logic on cancellation
* fix
* cancel connect deadlock; improved template code
* fix build failure with linux environments building windows targets
* fix
* fix
* no ++ for atomics
* remove the test changes, to be landed separately
* Automated change: Fix sanity tests
* remnants
Co-authored-by: drfloob <drfloob@users.noreply.github.com>
* Revert "Revert "[EventEngine] Refactor TimerManager to leverage a shared ThreadPool (#31392)" (#31425)"
This reverts commit 1cbf6d64ae.
* fix deadlock on windows engine shutdown
AJ Heller
apolcyn
Vignesh Babu
Craig Tiller
Esun Kim
Yash Tibrewal
Hannah Shi
Yijie Ma
Mark D. Roth
Cheng-Yu Chung