terraform/vendor/github.com/creack/goselect/fdset_windows.go

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2017-01-20 16:59:14 +01:00
// +build windows
package goselect
import "syscall"
const FD_SETSIZE = 64
// FDSet extracted from mingw libs source code
type FDSet struct {
fd_count uint
fd_array [FD_SETSIZE]uintptr
}
// Set adds the fd to the set
func (fds *FDSet) Set(fd uintptr) {
var i uint
for i = 0; i < fds.fd_count; i++ {
if fds.fd_array[i] == fd {
break
}
}
if i == fds.fd_count {
if fds.fd_count < FD_SETSIZE {
fds.fd_array[i] = fd
fds.fd_count++
}
}
}
// Clear remove the fd from the set
func (fds *FDSet) Clear(fd uintptr) {
var i uint
for i = 0; i < fds.fd_count; i++ {
if fds.fd_array[i] == fd {
for i < fds.fd_count-1 {
fds.fd_array[i] = fds.fd_array[i+1]
i++
}
fds.fd_count--
break
}
}
}
// IsSet check if the given fd is set
func (fds *FDSet) IsSet(fd uintptr) bool {
if isset, err := __WSAFDIsSet(syscall.Handle(fd), fds); err == nil && isset != 0 {
return true
}
return false
}
// Zero empties the Set
func (fds *FDSet) Zero() {
fds.fd_count = 0
}