mirror of
https://github.com/openziti/ziti.git
synced 2026-10-14 08:10:17 +00:00
Paul Lorenz
90 lines
2.0 KiB
Go
90 lines
2.0 KiB
Go
/*
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Copyright NetFoundry, Inc.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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https://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package udp_vconn
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import (
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"github.com/openziti/edge/tunnel"
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"github.com/openziti/edge/tunnel/entities"
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"github.com/openziti/foundation/util/mempool"
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"io"
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"net"
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"time"
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)
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type UDPWriterTo interface {
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io.Closer
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WriteTo(b []byte, addr net.Addr) (int, error)
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LocalAddr() net.Addr
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}
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type Event interface {
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Handle(Manager) error
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}
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type Manager interface {
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GetWriteQueue(clientAddr net.Addr) WriteQueue
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CreateWriteQueue(targetAddr *net.UDPAddr, clientAddr net.Addr, service *entities.Service, conn UDPWriterTo) (WriteQueue, error)
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QueueEvent(Event)
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QueueError(error)
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}
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type WriteQueue interface {
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Accept(mempool.PooledBuffer)
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LocalAddr() net.Addr
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Service() string
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}
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type NewConnAcceptResult int
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const (
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Allow NewConnAcceptResult = iota
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Deny
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AllowDropLRU
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)
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type NewConnPolicy interface {
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NewConnection(currentCount uint32) NewConnAcceptResult
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}
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type ConnExpirationPolicy interface {
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IsExpired(now, lastUsed time.Time) bool
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PollFrequency() time.Duration
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}
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type UnpooledBuffer []byte
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func (u UnpooledBuffer) GetPayload() []byte {
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return u
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}
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func (u UnpooledBuffer) Release() {
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// does nothing
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}
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func NewManager(provider tunnel.FabricProvider, newConnPolicy NewConnPolicy, expirationPolicy ConnExpirationPolicy) Manager {
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manager := &manager{
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eventC: make(chan Event),
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provider: provider,
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connMap: make(map[string]*udpConn),
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newConnPolicy: newConnPolicy,
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expirationPolicy: expirationPolicy,
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}
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go manager.run()
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return manager
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}
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