rpc/comms/inproc.go


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package comms

import (
    "fmt"

    "github.com/ethereum/go-ethereum/eth"
    "github.com/ethereum/go-ethereum/rpc/api"
    "github.com/ethereum/go-ethereum/rpc/codec"
    "github.com/ethereum/go-ethereum/rpc/shared"
    "github.com/ethereum/go-ethereum/xeth"
)

type InProcClient struct {
    api         api.EthereumApi
    codec       codec.Codec
    lastId      interface{}
    lastJsonrpc string
    lastErr     error
    lastRes     interface{}
}

// Create a new in process client
func NewInProcClient(codec codec.Codec) *InProcClient {
    return &InProcClient{
        codec: codec,
    }
}

func (self *InProcClient) Close() {
    // do nothing
}

// Need to setup api support
func (self *InProcClient) Initialize(xeth *xeth.XEth, eth *eth.Ethereum) {
    if apis, err := api.ParseApiString(api.AllApis, self.codec, xeth, eth); err == nil {
        self.api = api.Merge(apis...)
    }
}

func (self *InProcClient) Send(req interface{}) error {
    if r, ok := req.(*shared.Request); ok {
        self.lastId = r.Id
        self.lastJsonrpc = r.Jsonrpc
        self.lastRes, self.lastErr = self.api.Execute(r)
        return self.lastErr
    }

    return fmt.Errorf("Invalid request (%T)", req)
}

func (self *InProcClient) Recv() (interface{}, error) {
    return self.lastRes, self.lastErr
}