safing-portmaster/firewall/interception/nfqueue/multiqueue.go
2018-08-13 14:14:27 +02:00

46 lines
878 B
Go

// Copyright Safing ICS Technologies GmbH. Use of this source code is governed by the AGPL license that can be found in the LICENSE file.
package nfqueue
import (
"github.com/Safing/safing-core/network/packet"
"sync"
)
type multiQueue struct {
qs []*nfQueue
}
func NewMultiQueue(min, max uint16) (mq *multiQueue) {
mq = &multiQueue{make([]*nfQueue, 0, max-min)}
for i := min; i < max; i++ {
mq.qs = append(mq.qs, NewNFQueue(i))
}
return mq
}
func (mq *multiQueue) Process() <-chan packet.Packet {
var (
wg sync.WaitGroup
out = make(chan packet.Packet, len(mq.qs))
)
for _, q := range mq.qs {
wg.Add(1)
go func(ch <-chan packet.Packet) {
for pkt := range ch {
out <- pkt
}
wg.Done()
}(q.Process())
}
go func() {
wg.Wait()
close(out)
}()
return out
}
func (mq *multiQueue) Destroy() {
for _, q := range mq.qs {
q.Destroy()
}
}