internal

package
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Published: Mar 4, 2021 License: Apache-2.0 Imports: 3 Imported by: 0

Documentation

Overview

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.

Index

Constants

View Source
const (
	// CredsBundleModeFallback switches GoogleDefaultCreds to fallback mode.
	CredsBundleModeFallback = "fallback"
	// CredsBundleModeBalancer switches GoogleDefaultCreds to grpclb balancer
	// mode.
	CredsBundleModeBalancer = "balancer"
	// CredsBundleModeBackendFromBalancer switches GoogleDefaultCreds to mode
	// that supports backend returned by grpclb balancer.
	CredsBundleModeBackendFromBalancer = "backend-from-balancer"
)

Variables

View Source
var (
	// WithHealthCheckFunc is set by dialoptions.go
	WithHealthCheckFunc interface{} // func (HealthChecker) DialOption
	// HealthCheckFunc is used to provide client-side LB channel health checking
	HealthCheckFunc HealthChecker
	// BalancerUnregister is exported by package balancer to unregister a balancer.
	BalancerUnregister func(name string)
	// KeepaliveMinPingTime is the minimum ping interval.  This must be 10s by
	// default, but tests may wish to set it lower for convenience.
	KeepaliveMinPingTime = 10 * time.Second
	// NewRequestInfoContext creates a new context based on the argument context attaching
	// the passed in RequestInfo to the new context.
	NewRequestInfoContext interface{} // func(context.Context, credentials.RequestInfo) context.Context
	// ParseServiceConfigForTesting is for creating a fake
	// ClientConn for resolver testing only
	ParseServiceConfigForTesting interface{} // func(string) *serviceconfig.ParseResult
)

Functions

This section is empty.

Types

type HealthChecker

type HealthChecker func(ctx context.Context, newStream func(string) (interface{}, error), setConnectivityState func(connectivity.State, error), serviceName string) error

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

Directories

Path Synopsis
Package backoff implement the backoff strategy for gRPC.
Package backoff implement the backoff strategy for gRPC.
Package balancerload defines APIs to parse server loads in trailers.
Package balancerload defines APIs to parse server loads in trailers.
Package binarylog implementation binary logging as defined in https://github.com/grpc/proposal/blob/master/A16-binary-logging.md.
Package binarylog implementation binary logging as defined in https://github.com/grpc/proposal/blob/master/A16-binary-logging.md.
Package buffer provides an implementation of an unbounded buffer.
Package buffer provides an implementation of an unbounded buffer.
Package channelz defines APIs for enabling channelz service, entry registration/deletion, and accessing channelz data.
Package channelz defines APIs for enabling channelz service, entry registration/deletion, and accessing channelz data.
Package envconfig contains grpc settings configured by environment variables.
Package envconfig contains grpc settings configured by environment variables.
Package grpclog (internal) defines depth logging for grpc.
Package grpclog (internal) defines depth logging for grpc.
Package grpcrand implements math/rand functions in a concurrent-safe way with a global random source, independent of math/rand's global source.
Package grpcrand implements math/rand functions in a concurrent-safe way with a global random source, independent of math/rand's global source.
Package grpcsync implements additional synchronization primitives built upon the sync package.
Package grpcsync implements additional synchronization primitives built upon the sync package.
Package grpcutil provides a bunch of utility functions to be used across the gRPC codebase.
Package grpcutil provides a bunch of utility functions to be used across the gRPC codebase.
resolver
dns
Package dns implements a dns resolver to be installed as the default resolver in grpc.
Package dns implements a dns resolver to be installed as the default resolver in grpc.
passthrough
Package passthrough implements a pass-through resolver.
Package passthrough implements a pass-through resolver.
Package status implements errors returned by gRPC.
Package status implements errors returned by gRPC.
Package syscall provides functionalities that grpc uses to get low-level operating system stats/info.
Package syscall provides functionalities that grpc uses to get low-level operating system stats/info.
Package transport defines and implements message oriented communication channel to complete various transactions (e.g., an RPC).
Package transport defines and implements message oriented communication channel to complete various transactions (e.g., an RPC).

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