| David K. Bainbridge | 215e024 | 2017-09-05 23:18:24 -0700 | [diff] [blame^] | 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 | // +build darwin dragonfly freebsd linux netbsd openbsd solaris |
| 6 | |
| 7 | package socket |
| 8 | |
| 9 | import "syscall" |
| 10 | |
| 11 | var ( |
| 12 | errEAGAIN error = syscall.EAGAIN |
| 13 | errEINVAL error = syscall.EINVAL |
| 14 | errENOENT error = syscall.ENOENT |
| 15 | ) |
| 16 | |
| 17 | // errnoErr returns common boxed Errno values, to prevent allocations |
| 18 | // at runtime. |
| 19 | func errnoErr(errno syscall.Errno) error { |
| 20 | switch errno { |
| 21 | case 0: |
| 22 | return nil |
| 23 | case syscall.EAGAIN: |
| 24 | return errEAGAIN |
| 25 | case syscall.EINVAL: |
| 26 | return errEINVAL |
| 27 | case syscall.ENOENT: |
| 28 | return errENOENT |
| 29 | } |
| 30 | return errno |
| 31 | } |