// 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 aix || darwinpackage runtime
funcnonblockingPipe() (r, w int32, errno int32) {
r, w, errno =pipe()if errno !=0{return-1, -1, errno
}closeonexec(r)setNonblock(r)closeonexec(w)setNonblock(w)return r, w, errno
}