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56 lines
1.5 KiB
Go
56 lines
1.5 KiB
Go
// Copyright (C) 2015 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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package discover
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import (
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"time"
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"github.com/syncthing/syncthing/lib/protocol"
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"github.com/thejerf/suture"
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)
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// A Finder provides lookup services of some kind.
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type Finder interface {
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Lookup(deviceID protocol.DeviceID) (direct []string, relays []Relay, err error)
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Error() error
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String() string
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Cache() map[protocol.DeviceID]CacheEntry
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}
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type CacheEntry struct {
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Direct []string `json:"direct"`
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Relays []Relay `json:"relays"`
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when time.Time // When did we get the result
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found bool // Is it a success (cacheTime applies) or a failure (negCacheTime applies)?
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validUntil time.Time // Validity time, overrides normal calculation
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}
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// A FinderService is a Finder that has background activity and must be run as
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// a suture.Service.
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type FinderService interface {
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Finder
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suture.Service
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}
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type FinderMux interface {
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Finder
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ChildStatus() map[string]error
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}
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// The RelayStatusProvider answers questions about current relay status.
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type RelayStatusProvider interface {
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Relays() []string
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RelayStatus(uri string) (time.Duration, bool)
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}
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// The AddressLister answers questions about what addresses we are listening
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// on.
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type AddressLister interface {
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ExternalAddresses() []string
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AllAddresses() []string
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}
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