github.com/vantum/vantum@v0.0.0-20180815184342-fe37d5f7a990/rpc/ipc_unix.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  // +build darwin dragonfly freebsd linux nacl netbsd openbsd solaris
    18  
    19  package rpc
    20  
    21  import (
    22  	"context"
    23  	"net"
    24  	"os"
    25  	"path/filepath"
    26  )
    27  
    28  // ipcListen will create a Unix socket on the given endpoint.
    29  func ipcListen(endpoint string) (net.Listener, error) {
    30  	// Ensure the IPC path exists and remove any previous leftover
    31  	if err := os.MkdirAll(filepath.Dir(endpoint), 0751); err != nil {
    32  		return nil, err
    33  	}
    34  	os.Remove(endpoint)
    35  	l, err := net.Listen("unix", endpoint)
    36  	if err != nil {
    37  		return nil, err
    38  	}
    39  	os.Chmod(endpoint, 0600)
    40  	return l, nil
    41  }
    42  
    43  // newIPCConnection will connect to a Unix socket on the given endpoint.
    44  func newIPCConnection(ctx context.Context, endpoint string) (net.Conn, error) {
    45  	return dialContext(ctx, "unix", endpoint)
    46  }