github.com/devintegral3/go-ethereum@v1.9.7-0.20191031044858-21506be82b68/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/Fantom-foundation/go-ethereum/log"
    24  	"github.com/Fantom-foundation/go-ethereum/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(NewJSONCodec(conn), OptionMethodInvocation|OptionSubscriptions)
    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  func DialIPC(ctx context.Context, endpoint string) (*Client, error) {
    49  	return newClient(ctx, func(ctx context.Context) (ServerCodec, error) {
    50  		conn, err := newIPCConnection(ctx, endpoint)
    51  		if err != nil {
    52  			return nil, err
    53  		}
    54  		return NewJSONCodec(conn), err
    55  	})
    56  }