From 109be507377fe7f6e8819ac94041d3fdcdf6fd2f Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Sun, 28 Apr 2024 15:18:25 +0200 Subject: Adding upstream version 1.19.8. Signed-off-by: Daniel Baumann --- src/internal/syscall/unix/nonblocking_libc.go | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) create mode 100644 src/internal/syscall/unix/nonblocking_libc.go (limited to 'src/internal/syscall/unix/nonblocking_libc.go') diff --git a/src/internal/syscall/unix/nonblocking_libc.go b/src/internal/syscall/unix/nonblocking_libc.go new file mode 100644 index 0000000..8494071 --- /dev/null +++ b/src/internal/syscall/unix/nonblocking_libc.go @@ -0,0 +1,25 @@ +// Copyright 2018 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 || darwin || solaris + +package unix + +import ( + "syscall" + _ "unsafe" // for go:linkname +) + +func IsNonblock(fd int) (nonblocking bool, err error) { + flag, e1 := fcntl(fd, syscall.F_GETFL, 0) + if e1 != nil { + return false, e1 + } + return flag&syscall.O_NONBLOCK != 0, nil +} + +// Implemented in the syscall package. +// +//go:linkname fcntl syscall.fcntl +func fcntl(fd int, cmd int, arg int) (int, error) -- cgit v1.2.3