72 lines
1.6 KiB
Go
72 lines
1.6 KiB
Go
/* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2017-2023 WireGuard LLC. All Rights Reserved.
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*/
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package device
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import (
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"sync"
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)
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// An outboundQueue is a channel of QueueOutboundElements awaiting encryption.
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// An outboundQueue is ref-counted using its wg field.
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// An outboundQueue created with newOutboundQueue has one reference.
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// Every additional writer must call wg.Add(1).
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// Every completed writer must call wg.Done().
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// When no further writers will be added,
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// call wg.Done to remove the initial reference.
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// When the refcount hits 0, the queue's channel is closed.
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type outboundQueue struct {
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c chan *QueueOutboundElementsContainer
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wg sync.WaitGroup
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}
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func newOutboundQueue(capacity int) *outboundQueue {
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q := &outboundQueue{
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c: make(chan *QueueOutboundElementsContainer, capacity),
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}
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q.wg.Add(1)
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go func() {
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q.wg.Wait()
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close(q.c)
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}()
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return q
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}
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// A inboundQueue is similar to an outboundQueue; see those docs.
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type inboundQueue struct {
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c chan *QueueInboundElementsContainer
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wg sync.WaitGroup
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}
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func newInboundQueue(capacity int) *inboundQueue {
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q := &inboundQueue{
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c: make(chan *QueueInboundElementsContainer, capacity),
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}
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q.wg.Add(1)
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go func() {
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q.wg.Wait()
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close(q.c)
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}()
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return q
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}
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// A handshakeQueue is similar to an outboundQueue; see those docs.
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type handshakeQueue struct {
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c chan QueueHandshakeElement
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wg sync.WaitGroup
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}
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func newHandshakeQueue(capacity int) *handshakeQueue {
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q := &handshakeQueue{
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c: make(chan QueueHandshakeElement, capacity),
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}
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q.wg.Add(1)
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go func() {
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q.wg.Wait()
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close(q.c)
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}()
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return q
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}
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