rpc/comms/comms.go


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package comms

import (
    "io"
    "net"

    "github.com/ethereum/go-ethereum/logger"
    "github.com/ethereum/go-ethereum/logger/glog"
    "github.com/ethereum/go-ethereum/rpc/api"
    "github.com/ethereum/go-ethereum/rpc/codec"
    "github.com/ethereum/go-ethereum/rpc/shared"
)

type EthereumClient interface {
    Close()
    Send(interface{}) error
    Recv() (interface{}, error)
}

func handle(conn net.Conn, api api.EthereumApi, c codec.Codec) {
    codec := c.New(conn)

    for {
        req, err := codec.ReadRequest()
        if err == io.EOF {
            codec.Close()
            return
        } else if err != nil {
            glog.V(logger.Error).Infof("IPC recv err - %v\n", err)
            codec.Close()
            return
        }

        var rpcResponse interface{}
        res, err := api.Execute(req)

        rpcResponse = shared.NewRpcResponse(req.Id, req.Jsonrpc, res, err)
        err = codec.WriteResponse(rpcResponse)
        if err != nil {
            glog.V(logger.Error).Infof("comms send err - %v\n", err)
            codec.Close()
            return
        }
    }
}