github.com/Andyfoo/golang/x/net@v0.0.0-20190901054642-57c1bf301704/internal/socket/error_windows.go (about)

     1  // Copyright 2017 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 socket
     6  
     7  import "syscall"
     8  
     9  var (
    10  	errERROR_IO_PENDING error = syscall.ERROR_IO_PENDING
    11  	errEINVAL           error = syscall.EINVAL
    12  )
    13  
    14  // errnoErr returns common boxed Errno values, to prevent allocations
    15  // at runtime.
    16  func errnoErr(errno syscall.Errno) error {
    17  	switch errno {
    18  	case 0:
    19  		return nil
    20  	case syscall.ERROR_IO_PENDING:
    21  		return errERROR_IO_PENDING
    22  	case syscall.EINVAL:
    23  		return errEINVAL
    24  	}
    25  	return errno
    26  }