This makes the resolver component tests suite run on Window RBE by
adding a flag in the test driver to further differentiate between Bazel
local run and Bazel RBE run on Windows since they have different
RUNFILES behavior.
Local Bazel run succeeds:
```
C:\Users\yijiem\projects\grpc>bazel --output_base=C:\bazel2 test --dynamic_mode=off --verbose_failures --test_arg=--running_locally=true //test/cpp/naming:resolver_component_tests_runner_invoker
INFO: Analyzed target //test/cpp/naming:resolver_component_tests_runner_invoker (0 packages loaded, 0 targets configured).
INFO: Found 1 test target...
Target //test/cpp/naming:resolver_component_tests_runner_invoker up-to-date:
bazel-bin/test/cpp/naming/resolver_component_tests_runner_invoker.exe
INFO: Elapsed time: 196.080s, Critical Path: 193.21s
INFO: 2 processes: 1 internal, 1 local.
INFO: Build completed successfully, 2 total actions
//test/cpp/naming:resolver_component_tests_runner_invoker PASSED in 193.1s
Executed 1 out of 1 test: 1 test passes.
```
RBE run succeeds:
```
C:\Users\yijiem\projects\grpc>bazel --bazelrc=tools/remote_build/windows.bazelrc test --config=windows_opt --dynamic_mode=off --verbose_failures --host_linkopt=/NODEFAULTLIB:libcmt.lib --host_linkopt=/DEFAULTLIB:msvcrt.lib --nocache_test_results //test/cpp/naming:resolver_component_tests_runner_invoker
INFO: Invocation ID: d467f2e3-7da6-4bb5-8b9b-84f1181ebc60
WARNING: --remote_upload_local_results is set, but the remote cache does not support uploading action results or the current account is not authorized to write local results to the remote cache.
INFO: Streaming build results to: https://source.cloud.google.com/results/invocations/d467f2e3-7da6-4bb5-8b9b-84f1181ebc60
INFO: Analyzed target //test/cpp/naming:resolver_component_tests_runner_invoker (0 packages loaded, 133 targets configured).
INFO: Found 1 test target...
Target //test/cpp/naming:resolver_component_tests_runner_invoker up-to-date:
bazel-bin/test/cpp/naming/resolver_component_tests_runner_invoker.exe
INFO: Elapsed time: 41.627s, Critical Path: 39.42s
INFO: 2 processes: 1 internal, 1 remote.
//test/cpp/naming:resolver_component_tests_runner_invoker PASSED in 33.0s
Executed 1 out of 1 test: 1 test passes.
INFO: Streaming build results to: https://source.cloud.google.com/results/invocations/d467f2e3-7da6-4bb5-8b9b-84f1181ebc60
INFO: Build completed successfully, 2 total actions
```
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Local Bazel invocation succeeds:
```
C:\Users\yijiem\projects\grpc>bazel --output_base=C:\bazel2 test --dynamic_mode=off --verbose_failures //test/cpp/naming:resolver_component_tests_runner_invoker@poller=epoll1
INFO: Analyzed target //test/cpp/naming:resolver_component_tests_runner_invoker@poller=epoll1 (0 packages loaded, 0 targets configured).
INFO: Found 1 test target...
Target //test/cpp/naming:resolver_component_tests_runner_invoker@poller=epoll1 up-to-date:
bazel-bin/test/cpp/naming/resolver_component_tests_runner_invoker@poller=epoll1.exe
INFO: Elapsed time: 199.262s, Critical Path: 193.48s
INFO: 2 processes: 1 internal, 1 local.
INFO: Build completed successfully, 2 total actions
//test/cpp/naming:resolver_component_tests_runner_invoker@poller=epoll1 PASSED in 193.4s
Executed 1 out of 1 test: 1 test passes.
```
The local invocation of RBE failed with linker error `LINK : error
LNK2001: unresolved external symbol mainCRTStartup`, but that does not
limited to this target:
https://gist.github.com/yijiem/2c6cbd9a31209a6de8fd711afbf2b479.
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This PR implements a c-ares based DNS resolver for EventEngine with the
reference from the original
[grpc_ares_wrapper.h](../blob/master/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h).
The PosixEventEngine DNSResolver is implemented on top of that. Tests
which use the client channel resolver API
([resolver.h](../blob/master/src/core/lib/resolver/resolver.h#L54)) are
ported, namely the
[resolver_component_test.cc](../blob/master/test/cpp/naming/resolver_component_test.cc)
and the
[cancel_ares_query_test.cc](../blob/master/test/cpp/naming/cancel_ares_query_test.cc).
The WindowsEventEngine DNSResolver will use the same EventEngine's
grpc_ares_wrapper and will be worked on next.
The
[resolve_address_test.cc](https://github.com/grpc/grpc/blob/master/test/core/iomgr/resolve_address_test.cc)
which uses the iomgr
[DNSResolver](../blob/master/src/core/lib/iomgr/resolve_address.h#L44)
API has been ported to EventEngine's dns_test.cc. That leaves only 2
tests which use iomgr's API, notably the
[dns_resolver_cooldown_test.cc](../blob/master/test/core/client_channel/resolvers/dns_resolver_cooldown_test.cc)
and the
[goaway_server_test.cc](../blob/master/test/core/end2end/goaway_server_test.cc)
which probably need to be restructured to use EventEngine DNSResolver
(for one thing they override the original grpc_ares_wrapper's free
functions). I will try to tackle these in the next step.
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This makes the JSON API visible as part of the C-core API, but in the
`experimental` namespace. It will be used as part of various
experimental APIs that we will be introducing in the near future, such
as the audit logging API.
As Protobuf is going to support Cord to reduce memory copy when
[de]serializing Cord fields, gRPC is going to leverage it. This
implementation is based on the internal one but it's slightly modified
to use the public APIs of Cord. only
PR #32215 added the verified root cert subject to the lower level
`tsi_peer`. This PR is a companion to that and completes the feature by
bubbling the information up to the `TsiCustomVerificationCheckRequest`
which is part of the user facing API for implementing custom
verification callbacks.
Updates the ProtoReflectionDescriptorDatabase ctor to take a reference
to std::shared_ptr<grpc::ChannelInterface> rather than
std::shared_ptr<grpc::Channel>. This helps code that is making use of
grpc::ChannelInterface from having to perform a cast from the Base to
the Derived when creating the refelction db.
Without this, `grpc_cli` will connect, send the metadata and then completely stall until it is killed leading to believe it is the server that is stalled instead of `grpc_cli` that won't send the message.