Source file src/pkg/internal/poll/errno_windows.go

     1	// Copyright 2019 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	// +build windows
     6	
     7	package poll
     8	
     9	import "syscall"
    10	
    11	// Do the interface allocations only once for common
    12	// Errno values.
    13	
    14	var (
    15		errERROR_IO_PENDING error = syscall.Errno(syscall.ERROR_IO_PENDING)
    16	)
    17	
    18	// ErrnoErr returns common boxed Errno values, to prevent
    19	// allocations at runtime.
    20	func errnoErr(e syscall.Errno) error {
    21		switch e {
    22		case 0:
    23			return nil
    24		case syscall.ERROR_IO_PENDING:
    25			return errERROR_IO_PENDING
    26		}
    27		// TODO: add more here, after collecting data on the common
    28		// error values see on Windows. (perhaps when running
    29		// all.bat?)
    30		return e
    31	}
    32	

View as plain text