tree 49c54a5debd91719394c35471463bab6cf4ffa0d
parent 4d000f9349c3988862d5572ea55179f48f15886c
author Weiran Fang <weiranf@google.com> 1556130570 -0700
committer Chris Broadfoot <cbro@google.com> 1560445066 +0000

transport: Add dialer with tcp user timeout

The new dialer is only supported by go1.11+, and is only used when
GOOGLE_CLOUD_ENABLE_DIRECT_PATH contains specific services. e.g.
GOOGLE_CLOUD_ENABLE_DIRECT_PATH=spanner,bigtable means only spanner and
bigtable will be using this dialer.

Note that currently this socketopt dialer will overwrite user defined
dialer if any. I will update this logic once we have a way to introspect
the dialoptions(https://github.com/grpc/grpc-go/issues/2795).

Change-Id: I1e3873cd52be4583f4c868771d3d2257637c400d
Reviewed-on: https://code-review.googlesource.com/c/google-api-go-client/+/40272
Reviewed-by: Chris Broadfoot <cbro@google.com>
Reviewed-by: kokoro <noreply+kokoro@google.com>