Files
EtherGuard-VPN/src/misc.go
Mathias Hall-Andersen a4eff12d7f Improved receive.go
- Fixed configuration listen-port semantics
- Improved receive.go code for updating listen port
- Updated under load detection, how follows the kernel space implementation
- Fixed trie bug accidentally introduced in last commit
- Added interface name to log (format still subject to change)
- Can now configure the logging level using the LOG_LEVEL variable
- Begin porting netsh.sh tests
- A number of smaller changes
2017-08-11 16:18:20 +02:00

74 lines
973 B
Go

package main
import (
"sync/atomic"
"time"
)
/* We use int32 as atomic bools
* (since booleans are not natively supported by sync/atomic)
*/
const (
AtomicFalse = int32(iota)
AtomicTrue
)
type AtomicBool struct {
flag int32
}
func (a *AtomicBool) Get() bool {
return atomic.LoadInt32(&a.flag) == AtomicTrue
}
func (a *AtomicBool) Set(val bool) {
flag := AtomicFalse
if val {
flag = AtomicTrue
}
atomic.StoreInt32(&a.flag, flag)
}
func min(a uint, b uint) uint {
if a > b {
return b
}
return a
}
func minUint64(a uint64, b uint64) uint64 {
if a > b {
return b
}
return a
}
func signalSend(c chan struct{}) {
select {
case c <- struct{}{}:
default:
}
}
func signalClear(c chan struct{}) {
select {
case <-c:
default:
}
}
func timerStop(timer *time.Timer) {
if !timer.Stop() {
select {
case <-timer.C:
default:
}
}
}
func NewStoppedTimer() *time.Timer {
timer := time.NewTimer(time.Hour)
timerStop(timer)
return timer
}