github.com/kisexp/xdchain@v0.0.0-20211206025815-490d6b732aa7/rpc/ipc.go (about) 1 // Copyright 2015 The go-ethereum Authors 2 // This file is part of the go-ethereum library. 3 // 4 // The go-ethereum library is free software: you can redistribute it and/or modify 5 // it under the terms of the GNU Lesser General Public License as published by 6 // the Free Software Foundation, either version 3 of the License, or 7 // (at your option) any later version. 8 // 9 // The go-ethereum library is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU Lesser General Public License for more details. 13 // 14 // You should have received a copy of the GNU Lesser General Public License 15 // along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>. 16 17 package rpc 18 19 import ( 20 "context" 21 "net" 22 23 "github.com/kisexp/xdchain/log" 24 "github.com/kisexp/xdchain/p2p/netutil" 25 ) 26 27 // ServeListener accepts connections on l, serving JSON-RPC on them. 28 func (s *Server) ServeListener(l net.Listener) error { 29 for { 30 conn, err := l.Accept() 31 if netutil.IsTemporaryError(err) { 32 log.Warn("RPC accept error", "err", err) 33 continue 34 } else if err != nil { 35 return err 36 } 37 log.Trace("Accepted RPC connection", "conn", conn.RemoteAddr()) 38 go s.ServeCodec(NewCodec(conn), 0) 39 } 40 } 41 42 // DialIPC create a new IPC client that connects to the given endpoint. On Unix it assumes 43 // the endpoint is the full path to a unix socket, and Windows the endpoint is an 44 // identifier for a named pipe. 45 // 46 // The context is used for the initial connection establishment. It does not 47 // affect subsequent interactions with the client. 48 // 49 // Quorum 50 // 1. Enrich the IPC client with PSI value returned by provider function, if found in the context. 51 // Here we have to use the id field in JSON message to carry the PSI value. 52 func DialIPC(ctx context.Context, endpoint string) (*Client, error) { 53 ctx = resolvePSIProvider(ctx, endpoint) 54 client, err := newClient(ctx, func(ctx context.Context) (ServerCodec, error) { 55 conn, err := newIPCConnection(ctx, endpoint) 56 if err != nil { 57 return nil, err 58 } 59 return NewCodec(conn), nil 60 }) 61 if err != nil { 62 return nil, err 63 } 64 return client, nil 65 }