Source file src/net/sock_windows.go

     1	// Copyright 2009 The Go Authors. All rights reserved.
     2	// Use of this source code is governed by a BSD-style
     3	// license that can be found in the LICENSE file.
     4	
     5	package net
     6	
     7	import (
     8		"internal/syscall/windows"
     9		"os"
    10		"syscall"
    11	)
    12	
    13	func maxListenerBacklog() int {
    14		// TODO: Implement this
    15		// NOTE: Never return a number bigger than 1<<16 - 1. See issue 5030.
    16		return syscall.SOMAXCONN
    17	}
    18	
    19	func sysSocket(family, sotype, proto int) (syscall.Handle, error) {
    20		s, err := wsaSocketFunc(int32(family), int32(sotype), int32(proto),
    21			nil, 0, windows.WSA_FLAG_OVERLAPPED|windows.WSA_FLAG_NO_HANDLE_INHERIT)
    22		if err == nil {
    23			return s, nil
    24		}
    25		// WSA_FLAG_NO_HANDLE_INHERIT flag is not supported on some
    26		// old versions of Windows, see
    27		// https://msdn.microsoft.com/en-us/library/windows/desktop/ms742212(v=vs.85).aspx
    28		// for details. Just use syscall.Socket, if windows.WSASocket failed.
    29	
    30		// See ../syscall/exec_unix.go for description of ForkLock.
    31		syscall.ForkLock.RLock()
    32		s, err = socketFunc(family, sotype, proto)
    33		if err == nil {
    34			syscall.CloseOnExec(s)
    35		}
    36		syscall.ForkLock.RUnlock()
    37		if err != nil {
    38			return syscall.InvalidHandle, os.NewSyscallError("socket", err)
    39		}
    40		return s, nil
    41	}
    42	

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