github.com/samgwo/go-ethereum@v1.8.2-0.20180302101319-49bcb5fbd55e/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  	"fmt"
    22  	"net"
    23  
    24  	"github.com/ethereum/go-ethereum/log"
    25  )
    26  
    27  // CreateIPCListener creates an listener, on Unix platforms this is a unix socket, on
    28  // Windows this is a named pipe
    29  func CreateIPCListener(endpoint string) (net.Listener, error) {
    30  	return ipcListen(endpoint)
    31  }
    32  
    33  // ServeListener accepts connections on l, serving JSON-RPC on them.
    34  func (srv *Server) ServeListener(l net.Listener) error {
    35  	for {
    36  		conn, err := l.Accept()
    37  		if err != nil {
    38  			return err
    39  		}
    40  		log.Trace(fmt.Sprint("accepted conn", conn.RemoteAddr()))
    41  		go srv.ServeCodec(NewJSONCodec(conn), OptionMethodInvocation|OptionSubscriptions)
    42  	}
    43  }
    44  
    45  // DialIPC create a new IPC client that connects to the given endpoint. On Unix it assumes
    46  // the endpoint is the full path to a unix socket, and Windows the endpoint is an
    47  // identifier for a named pipe.
    48  //
    49  // The context is used for the initial connection establishment. It does not
    50  // affect subsequent interactions with the client.
    51  func DialIPC(ctx context.Context, endpoint string) (*Client, error) {
    52  	return newClient(ctx, func(ctx context.Context) (net.Conn, error) {
    53  		return newIPCConnection(ctx, endpoint)
    54  	})
    55  }