29 lines
781 B
Go
29 lines
781 B
Go
// 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 || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
|
|
|
|
package unix
|
|
|
|
// Set adds fd to the set fds.
|
|
func (fds *FdSet) Set(fd int) {
|
|
fds.Bits[fd/NFDBITS] |= (1 << (uintptr(fd) % NFDBITS))
|
|
}
|
|
|
|
// Clear removes fd from the set fds.
|
|
func (fds *FdSet) Clear(fd int) {
|
|
fds.Bits[fd/NFDBITS] &^= (1 << (uintptr(fd) % NFDBITS))
|
|
}
|
|
|
|
// IsSet returns whether fd is in the set fds.
|
|
func (fds *FdSet) IsSet(fd int) bool {
|
|
return fds.Bits[fd/NFDBITS]&(1<<(uintptr(fd)%NFDBITS)) != 0
|
|
}
|
|
|
|
// Zero clears the set fds.
|
|
func (fds *FdSet) Zero() {
|
|
for i := range fds.Bits {
|
|
fds.Bits[i] = 0
|
|
}
|
|
}
|