shared

package
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Published: Mar 31, 2018 License: MPL-2.0 Imports: 6 Imported by: 0

Documentation

Overview

Package shared contains shared data between the host and plugins.

Index

Constants

This section is empty.

Variables

View Source
var Handshake = plugin.HandshakeConfig{
	ProtocolVersion:  1,
	MagicCookieKey:   "BASIC_PLUGIN",
	MagicCookieValue: "hello",
}

Handshake is a common handshake that is shared by plugin and host.

View Source
var PluginMap = map[string]plugin.Plugin{
	"kv": &KVPlugin{},
}

PluginMap is the map of plugins we can dispense.

Functions

This section is empty.

Types

type GRPCClient

type GRPCClient struct {
	// contains filtered or unexported fields
}

GRPCClient is an implementation of KV that talks over RPC.

func (*GRPCClient) Get

func (m *GRPCClient) Get(key string) ([]byte, error)

func (*GRPCClient) Put

func (m *GRPCClient) Put(key string, value []byte) error

type GRPCServer

type GRPCServer struct {
	// This is the real implementation
	Impl KV
}

Here is the gRPC server that GRPCClient talks to.

func (*GRPCServer) Get

func (*GRPCServer) Put

func (m *GRPCServer) Put(
	ctx context.Context,
	req *proto.PutRequest) (*proto.Empty, error)

type KV

type KV interface {
	Put(key string, value []byte) error
	Get(key string) ([]byte, error)
}

KV is the interface that we're exposing as a plugin.

type KVPlugin

type KVPlugin struct {
	// Concrete implementation, written in Go. This is only used for plugins
	// that are written in Go.
	Impl KV
}

This is the implementation of plugin.Plugin so we can serve/consume this. We also implement GRPCPlugin so that this plugin can be served over gRPC.

func (*KVPlugin) Client

func (*KVPlugin) Client(b *plugin.MuxBroker, c *rpc.Client) (interface{}, error)

func (*KVPlugin) GRPCClient

func (p *KVPlugin) GRPCClient(ctx context.Context, broker *plugin.GRPCBroker, c *grpc.ClientConn) (interface{}, error)

func (*KVPlugin) GRPCServer

func (p *KVPlugin) GRPCServer(broker *plugin.GRPCBroker, s *grpc.Server) error

func (*KVPlugin) Server

func (p *KVPlugin) Server(*plugin.MuxBroker) (interface{}, error)

type RPCClient

type RPCClient struct {
	// contains filtered or unexported fields
}

RPCClient is an implementation of KV that talks over RPC.

func (*RPCClient) Get

func (m *RPCClient) Get(key string) ([]byte, error)

func (*RPCClient) Put

func (m *RPCClient) Put(key string, value []byte) error

type RPCServer

type RPCServer struct {
	// This is the real implementation
	Impl KV
}

Here is the RPC server that RPCClient talks to, conforming to the requirements of net/rpc

func (*RPCServer) Get

func (m *RPCServer) Get(key string, resp *[]byte) error

func (*RPCServer) Put

func (m *RPCServer) Put(args map[string]interface{}, resp *interface{}) error

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