* This will be used in certprovider tests where we would want more than one server and client certs.
* Also, updated existing usages of these certs to point to the new files.
* Also copy over the required certs/key files. This avoids the example gomodule from depending on gRPC testdata package which should be able to change independently.
* Fix interop test's SAN.
- Send a message from the test server that the client can block on to know for sure the RPC's header was sent.
- Don't receive in the test server so we can violate flow control
- Set a deadline on the RPC so it can't hang forever.
- Seperated and documented the options for client and server sides.
- Better support for multiple grpc.Servers. This will be used in other
improvements that I have in the works.
- Moved some common functionality from channelz_test.go to
end2end_test.go.
- Added an option to use the default health service implementation, instead
of each test creating a new health.Server and passing it in. The
inidividual tests have not been changed in this PR. I will do that in a
follow up PR to keep the changes to a reasonable size.
- Fixed one of the tests which had to be fixed because of the separation
of client and server configs.
internal: fix onClose state transitions
When onClose occurs during WaitForHandshake, it should immediately
exit createTransport instead of leaving CONNECTING and entering READY.
Furthermore, when any onClose happens, the state should change to
TRANSIENT FAILURE.
Fixes#2340Fixes#2341
Also fixes an unreported bug in which entering READY causes a
Dial call to end prematurely, instead of blocking until a READY
transport is found.
Reverts grpc/grpc-go#2098
Appengine will fail with the error below:
```
go-app-builder: Failed parsing input: parser: bad import "syscall" in google.golang.org/grpc/channelz/funcs.go from GOPATH
```
The root cause of it is in type_linux.go.
629f6bc5e5/channelz/types_linux.go (L21-L25)
This PR splits out grpclb from grpc. I have made the PR in several commits so you can see more clearly the steps that happened.
There are a few possibly contentious points that I would like to make clear up front:
* grpclb will no longer autoload as a load balancer. I think this is okay, as service config is not widely (at all?) used, and I believe this is the only way to access it.
* `internal` is used more, as a way of having code shared between packages without exposing types
* ConnectivityStateEvaluator, as used by grpclb, is no longer thread safe. I believe there is an outer mutex that guards access, but I want to point out this subtle change up here.
All but one tests pass with this, due to another cyclic dependency. I can fix this, but it is a little more widely scoped (such as exposing grpc.server and grpc.errorDesc in the internal package). This PR is a nearly-passing sample of that last step to get this working.
PTAL @menghanl @dfawley
Easwar Swaminathan
Doug Fawley
Gaurav Gahlot
Zou Nengren
Garrett Gutierrez
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Ian Lance Taylor
Masahiro Sano
Jean de Klerk
Carl Mastrangelo