github.com/sberex/go-sberex@v1.8.2-0.20181113200658-ed96ac38f7d7/rpc/ipc_windows.go (about)

     1  // This file is part of the go-sberex library. The go-sberex library is 
     2  // free software: you can redistribute it and/or modify it under the terms 
     3  // of the GNU Lesser General Public License as published by the Free 
     4  // Software Foundation, either version 3 of the License, or (at your option)
     5  // any later version.
     6  //
     7  // The go-sberex library is distributed in the hope that it will be useful, 
     8  // but WITHOUT ANY WARRANTY; without even the implied warranty of
     9  // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser 
    10  // General Public License <http://www.gnu.org/licenses/> for more details.
    11  
    12  // +build windows
    13  
    14  package rpc
    15  
    16  import (
    17  	"context"
    18  	"net"
    19  	"time"
    20  
    21  	"gopkg.in/natefinch/npipe.v2"
    22  )
    23  
    24  // This is used if the dialing context has no deadline. It is much smaller than the
    25  // defaultDialTimeout because named pipes are local and there is no need to wait so long.
    26  const defaultPipeDialTimeout = 2 * time.Second
    27  
    28  // ipcListen will create a named pipe on the given endpoint.
    29  func ipcListen(endpoint string) (net.Listener, error) {
    30  	return npipe.Listen(endpoint)
    31  }
    32  
    33  // newIPCConnection will connect to a named pipe with the given endpoint as name.
    34  func newIPCConnection(ctx context.Context, endpoint string) (net.Conn, error) {
    35  	timeout := defaultPipeDialTimeout
    36  	if deadline, ok := ctx.Deadline(); ok {
    37  		timeout = deadline.Sub(time.Now())
    38  		if timeout < 0 {
    39  			timeout = 0
    40  		}
    41  	}
    42  	return npipe.DialTimeout(endpoint, timeout)
    43  }