tree 1494119aea70f8f2f701c8e9891c47611e5f0f4f
parent 9bc8353d456f3b997702103e7d4093f76b3a2d50
author Chris Broadfoot <cbro@golang.org> 1571261298 -0700
committer Chris Broadfoot <cbro@google.com> 1579211799 +0000

transport: add DialPool and ConnPool

DialPool returns a pool of grpc.ClientConns based on the provided
WithGRPCConnectionPool ClientOption.

It implements a fixed-size, round-robin strategy.

This removes the hack of using a GRPC load balancer (soon to be removed
from GRPC) to implement connection pooling.

Change-Id: If0480596e5149517609191314bde1d577b606518
Reviewed-on: https://code-review.googlesource.com/c/google-api-go-client/+/47050
Reviewed-by: Tyler Bui-Palsulich <tbp@google.com>