31 lines
725 B
Go
31 lines
725 B
Go
// Copyright 2019 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
//go:build windows
|
|
|
|
package poll
|
|
|
|
import "syscall"
|
|
|
|
// Do the interface allocations only once for common
|
|
// Errno values.
|
|
|
|
var (
|
|
errERROR_IO_PENDING error = syscall.Errno(syscall.ERROR_IO_PENDING)
|
|
)
|
|
|
|
// ErrnoErr returns common boxed Errno values, to prevent
|
|
// allocations at runtime.
|
|
func errnoErr(e syscall.Errno) error {
|
|
switch e {
|
|
case 0:
|
|
return nil
|
|
case syscall.ERROR_IO_PENDING:
|
|
return errERROR_IO_PENDING
|
|
}
|
|
// TODO: add more here, after collecting data on the common
|
|
// error values see on Windows. (perhaps when running
|
|
// all.bat?)
|
|
return e
|
|
}
|