* Copyright 2016 gRPC authors. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http:www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. *
Package internal contains gRPC-internal code, to avoid polluting the godoc of the top-level grpc package. It must not import any grpc symbols to avoid circular dependencies.
package internal

import (
	
	

	
	
)
WithHealthCheckFunc is set by dialoptions.go
HealthCheckFunc is used to provide client-side LB channel health checking
BalancerUnregister is exported by package balancer to unregister a balancer.
KeepaliveMinPingTime is the minimum ping interval. This must be 10s by default, but tests may wish to set it lower for convenience.
NewRequestInfoContext creates a new context based on the argument context attaching the passed in RequestInfo to the new context.
NewClientHandshakeInfoContext returns a copy of the input context with the passed in ClientHandshakeInfo struct added to it.
ParseServiceConfigForTesting is for creating a fake ClientConn for resolver testing only
EqualServiceConfigForTesting is for testing service config generation and parsing. Both a and b should be returned by ParseServiceConfigForTesting. This function compares the config without rawJSON stripped, in case the there's difference in white space.
	EqualServiceConfigForTesting func(a, b serviceconfig.Config) bool
)
HealthChecker defines the signature of the client-side LB channel health checking function. The implementation is expected to create a health checking RPC stream by calling newStream(), watch for the health status of serviceName, and report it's health back by calling setConnectivityState(). The health checking protocol is defined at: https://github.com/grpc/grpc/blob/master/doc/health-checking.md
type HealthChecker func(ctx context.Context, newStream func(string) (interface{}, error), setConnectivityState func(connectivity.State, error), serviceName string) error
CredsBundleModeFallback switches GoogleDefaultCreds to fallback mode.
CredsBundleModeBalancer switches GoogleDefaultCreds to grpclb balancer mode.
CredsBundleModeBackendFromBalancer switches GoogleDefaultCreds to mode that supports backend returned by grpclb balancer.
	CredsBundleModeBackendFromBalancer = "backend-from-balancer"