| // 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 dragonfly || freebsd || hurd || linux || netbsd || openbsd || solaris |
| |
| package runtime |
| |
| func nonblockingPipe() (r, w int32, errno int32) { |
| r, w, errno = pipe2(_O_NONBLOCK | _O_CLOEXEC) |
| if errno == -_ENOSYS { |
| r, w, errno = pipe() |
| if errno != 0 { |
| return -1, -1, errno |
| } |
| closeonexec(r) |
| setNonblock(r) |
| closeonexec(w) |
| setNonblock(w) |
| } |
| return r, w, errno |
| } |
