libgo/go/syscall/syscall_errno.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 syscall
   6
   7 // An Errno is an unsigned number describing an error condition.
   8 // It implements the error interface.  The zero Errno is by convention
   9 // a non-error, so code to convert from Errno to error should use:
  10 //      err = nil
  11 //      if errno != 0 {
  12 //              err = errno
  13 //      }
  14 type Errno uintptr
  15
  16 func (e Errno) Error() string {
  17         return Errstr(int(e))
  18 }
  19
  20 func (e Errno) Temporary() bool {
  21         return e == EINTR || e == EMFILE || e == ECONNRESET || e == ECONNABORTED || e.Timeout()
  22 }
  23
  24 func (e Errno) Timeout() bool {
  25         return e == EAGAIN || e == EWOULDBLOCK || e == ETIMEDOUT
  26 }