87 lines
2.4 KiB
Go
87 lines
2.4 KiB
Go
// Copyright 2015 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
// +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris
|
|
|
|
package comms
|
|
|
|
import (
|
|
"net"
|
|
"os"
|
|
|
|
"github.com/ethereum/go-ethereum/logger"
|
|
"github.com/ethereum/go-ethereum/logger/glog"
|
|
"github.com/ethereum/go-ethereum/rpc/codec"
|
|
"github.com/ethereum/go-ethereum/rpc/shared"
|
|
)
|
|
|
|
func newIpcClient(cfg IpcConfig, codec codec.Codec) (*ipcClient, error) {
|
|
c, err := net.DialUnix("unix", nil, &net.UnixAddr{cfg.Endpoint, "unix"})
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &ipcClient{cfg.Endpoint, c, codec, codec.New(c)}, nil
|
|
}
|
|
|
|
func (self *ipcClient) reconnect() error {
|
|
self.coder.Close()
|
|
c, err := net.DialUnix("unix", nil, &net.UnixAddr{self.endpoint, "unix"})
|
|
if err == nil {
|
|
self.coder = self.codec.New(c)
|
|
}
|
|
|
|
return err
|
|
}
|
|
|
|
func startIpc(cfg IpcConfig, codec codec.Codec, initializer func(conn net.Conn) (shared.EthereumApi, error)) error {
|
|
os.Remove(cfg.Endpoint) // in case it still exists from a previous run
|
|
|
|
l, err := net.ListenUnix("unix", &net.UnixAddr{Name: cfg.Endpoint, Net: "unix"})
|
|
if err != nil {
|
|
return err
|
|
}
|
|
os.Chmod(cfg.Endpoint, 0600)
|
|
|
|
go func() {
|
|
for {
|
|
conn, err := l.AcceptUnix()
|
|
if err != nil {
|
|
glog.V(logger.Error).Infof("Error accepting ipc connection - %v\n", err)
|
|
continue
|
|
}
|
|
|
|
id := newIpcConnId()
|
|
glog.V(logger.Debug).Infof("New IPC connection with id %06d started\n", id)
|
|
|
|
api, err := initializer(conn)
|
|
if err != nil {
|
|
glog.V(logger.Error).Infof("Unable to initialize IPC connection - %v\n", err)
|
|
conn.Close()
|
|
continue
|
|
}
|
|
|
|
go handle(id, conn, api, codec)
|
|
}
|
|
|
|
os.Remove(cfg.Endpoint)
|
|
}()
|
|
|
|
glog.V(logger.Info).Infof("IPC service started (%s)\n", cfg.Endpoint)
|
|
|
|
return nil
|
|
}
|