12065142459

Committed 28 Nov 2024 08:28AM UTC coverage: 58.939% (+0.02%) from 58.921%

Build # 12065142459

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web-flow

Commit Message

Merge pull request #9311 from Roasbeef/protofsm-race-fix

protofsm: fix race in state machine executor tests

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95.53

/graph/validation_barrier.go

package graph

import (
        "fmt"
        "sync"

        "github.com/lightningnetwork/lnd/channeldb"
        "github.com/lightningnetwork/lnd/channeldb/models"
        "github.com/lightningnetwork/lnd/lnwire"
        "github.com/lightningnetwork/lnd/routing/route"
)

// validationSignals contains two signals which allows the ValidationBarrier to
// communicate back to the caller whether a dependent should be processed or not
// based on whether its parent was successfully validated. Only one of these
// signals is to be used at a time.
type validationSignals struct {
        // allow is the signal used to allow a dependent to be processed.
        allow chan struct{}

        // deny is the signal used to prevent a dependent from being processed.
        deny chan struct{}
}

// ValidationBarrier is a barrier used to ensure proper validation order while
// concurrently validating new announcements for channel edges, and the
// attributes of channel edges.  It uses this set of maps (protected by this
// mutex) to track validation dependencies. For a given channel our
// dependencies look like this: chanAnn <- chanUp <- nodeAnn. That is we must
// validate the item on the left of the arrow before that on the right.
type ValidationBarrier struct {
        // validationSemaphore is a channel of structs which is used as a
        // semaphore. Initially we'll fill this with a buffered channel of the
        // size of the number of active requests. Each new job will consume
        // from this channel, then restore the value upon completion.
        validationSemaphore chan struct{}

        // chanAnnFinSignal is map that keep track of all the pending
        // ChannelAnnouncement like validation job going on. Once the job has
        // been completed, the channel will be closed unblocking any
        // dependants.
        chanAnnFinSignal map[lnwire.ShortChannelID]*validationSignals

        // chanEdgeDependencies tracks any channel edge updates which should
        // wait until the completion of the ChannelAnnouncement before
        // proceeding. This is a dependency, as we can't validate the update
        // before we validate the announcement which creates the channel
        // itself.
        chanEdgeDependencies map[lnwire.ShortChannelID]*validationSignals

        // nodeAnnDependencies tracks any pending NodeAnnouncement validation
        // jobs which should wait until the completion of the
        // ChannelAnnouncement before proceeding.
        nodeAnnDependencies map[route.Vertex]*validationSignals

        quit chan struct{}
        sync.Mutex
}

// NewValidationBarrier creates a new instance of a validation barrier given
// the total number of active requests, and a quit channel which will be used
// to know when to kill pending, but unfilled jobs.
func NewValidationBarrier(numActiveReqs int,
        quitChan chan struct{}) *ValidationBarrier {

        v := &ValidationBarrier{
                chanAnnFinSignal:     make(map[lnwire.ShortChannelID]*validationSignals),
                chanEdgeDependencies: make(map[lnwire.ShortChannelID]*validationSignals),
                nodeAnnDependencies:  make(map[route.Vertex]*validationSignals),
                quit:                 quitChan,
        }

        // We'll first initialize a set of semaphores to limit our concurrency
        // when validating incoming requests in parallel.
        v.validationSemaphore = make(chan struct{}, numActiveReqs)
        for i := 0; i < numActiveReqs; i++ {
                v.validationSemaphore <- struct{}{}
        }

        return v
}

// InitJobDependencies will wait for a new job slot to become open, and then
// sets up any dependent signals/trigger for the new job
func (v *ValidationBarrier) InitJobDependencies(job interface{}) {
        // We'll wait for either a new slot to become open, or for the quit
        // channel to be closed.
        select {
        case <-v.validationSemaphore:
        case <-v.quit:
        }

        v.Lock()
        defer v.Unlock()

        // Once a slot is open, we'll examine the message of the job, to see if
        // there need to be any dependent barriers set up.
        switch msg := job.(type) {

        // If this is a channel announcement, then we'll need to set up den
        // tenancies, as we'll need to verify this before we verify any
        // ChannelUpdates for the same channel, or NodeAnnouncements of nodes
        // that are involved in this channel. This goes for both the wire
        // type,s and also the types that we use within the database.
        case *lnwire.ChannelAnnouncement1:

                // We ensure that we only create a new announcement signal iff,
                // one doesn't already exist, as there may be duplicate
                // announcements.  We'll close this signal once the
                // ChannelAnnouncement has been validated. This will result in
                // all the dependent jobs being unlocked so they can finish
                // execution themselves.
                if _, ok := v.chanAnnFinSignal[msg.ShortChannelID]; !ok {
                        // We'll create the channel that we close after we
                        // validate this announcement. All dependants will
                        // point to this same channel, so they'll be unblocked
                        // at the same time.
                        signals := &validationSignals{
                                allow: make(chan struct{}),
                                deny:  make(chan struct{}),
                        }

                        v.chanAnnFinSignal[msg.ShortChannelID] = signals
                        v.chanEdgeDependencies[msg.ShortChannelID] = signals

                        v.nodeAnnDependencies[route.Vertex(msg.NodeID1)] = signals
                        v.nodeAnnDependencies[route.Vertex(msg.NodeID2)] = signals
                }
        case *models.ChannelEdgeInfo:

                shortID := lnwire.NewShortChanIDFromInt(msg.ChannelID)
                if _, ok := v.chanAnnFinSignal[shortID]; !ok {
                        signals := &validationSignals{
                                allow: make(chan struct{}),
                                deny:  make(chan struct{}),
                        }

                        v.chanAnnFinSignal[shortID] = signals
                        v.chanEdgeDependencies[shortID] = signals

                        v.nodeAnnDependencies[route.Vertex(msg.NodeKey1Bytes)] = signals
                        v.nodeAnnDependencies[route.Vertex(msg.NodeKey2Bytes)] = signals
                }

        // These other types don't have any dependants, so no further
        // initialization needs to be done beyond just occupying a job slot.
        case *models.ChannelEdgePolicy:
                return
        case *lnwire.ChannelUpdate1:
                return
        case *lnwire.NodeAnnouncement:
                // TODO(roasbeef): node ann needs to wait on existing channel updates
                return
        case *channeldb.LightningNode:
                return
        case *lnwire.AnnounceSignatures1:
                // TODO(roasbeef): need to wait on chan ann?
                return
        }
}

// CompleteJob returns a free slot to the set of available job slots. This
// should be called once a job has been fully completed. Otherwise, slots may
// not be returned to the internal scheduling, causing a deadlock when a new
// overflow job is attempted.
func (v *ValidationBarrier) CompleteJob() {
        select {
        case v.validationSemaphore <- struct{}{}:
        case <-v.quit:
        }
}

// WaitForDependants will block until any jobs that this job dependants on have
// finished executing. This allows us a graceful way to schedule goroutines
// based on any pending uncompleted dependent jobs. If this job doesn't have an
// active dependent, then this function will return immediately.
func (v *ValidationBarrier) WaitForDependants(job interface{}) error {

        var (
                signals *validationSignals
                ok      bool
                jobDesc string
        )

        // Acquire a lock to read ValidationBarrier.
        v.Lock()

        switch msg := job.(type) {
        // Any ChannelUpdate or NodeAnnouncement jobs will need to wait on the
        // completion of any active ChannelAnnouncement jobs related to them.
        case *models.ChannelEdgePolicy:
                shortID := lnwire.NewShortChanIDFromInt(msg.ChannelID)
                signals, ok = v.chanEdgeDependencies[shortID]

                jobDesc = fmt.Sprintf("job=lnwire.ChannelEdgePolicy, scid=%v",
                        msg.ChannelID)

        case *channeldb.LightningNode:
                vertex := route.Vertex(msg.PubKeyBytes)
                signals, ok = v.nodeAnnDependencies[vertex]

                jobDesc = fmt.Sprintf("job=channeldb.LightningNode, pub=%s",
                        vertex)

        case *lnwire.ChannelUpdate1:
                signals, ok = v.chanEdgeDependencies[msg.ShortChannelID]

                jobDesc = fmt.Sprintf("job=lnwire.ChannelUpdate, scid=%v",
                        msg.ShortChannelID.ToUint64())

        case *lnwire.NodeAnnouncement:
                vertex := route.Vertex(msg.NodeID)
                signals, ok = v.nodeAnnDependencies[vertex]
                jobDesc = fmt.Sprintf("job=lnwire.NodeAnnouncement, pub=%s",
                        vertex)

        // Other types of jobs can be executed immediately, so we'll just
        // return directly.
        case *lnwire.AnnounceSignatures1:
                // TODO(roasbeef): need to wait on chan ann?
        case *models.ChannelEdgeInfo:
        case *lnwire.ChannelAnnouncement1:
        }

        // Release the lock once the above read is finished.
        v.Unlock()

        // If it's not ok, it means either the job is not a dependent type, or
        // it doesn't have a dependency signal. Either way, we can return
        // early.
        if !ok {
                return nil
        }

        log.Debugf("Waiting for dependent on %s", jobDesc)

        // If we do have an active job, then we'll wait until either the signal
        // is closed, or the set of jobs exits.
        select {
        case <-v.quit:
                return NewErrf(ErrVBarrierShuttingDown,
                        "validation barrier shutting down")

        case <-signals.deny:
                log.Debugf("Signal deny for %s", jobDesc)
                return NewErrf(ErrParentValidationFailed,
                        "parent validation failed")

        case <-signals.allow:
                log.Tracef("Signal allow for %s", jobDesc)
                return nil
        }
}

// SignalDependants will allow/deny any jobs that are dependent on this job that
// they can continue execution. If the job doesn't have any dependants, then
// this function sill exit immediately.
func (v *ValidationBarrier) SignalDependants(job interface{}, allow bool) {
        v.Lock()
        defer v.Unlock()

        switch msg := job.(type) {

        // If we've just finished executing a ChannelAnnouncement, then we'll
        // close out the signal, and remove the signal from the map of active
        // ones. This will allow/deny any dependent jobs to continue execution.
        case *models.ChannelEdgeInfo:
                shortID := lnwire.NewShortChanIDFromInt(msg.ChannelID)
                finSignals, ok := v.chanAnnFinSignal[shortID]
                if ok {
                        if allow {
                                close(finSignals.allow)
                        } else {
                                close(finSignals.deny)
                        }
                        delete(v.chanAnnFinSignal, shortID)
                }
        case *lnwire.ChannelAnnouncement1:
                finSignals, ok := v.chanAnnFinSignal[msg.ShortChannelID]
                if ok {
                        if allow {
                                close(finSignals.allow)
                        } else {
                                close(finSignals.deny)
                        }
                        delete(v.chanAnnFinSignal, msg.ShortChannelID)
                }

                delete(v.chanEdgeDependencies, msg.ShortChannelID)

        // For all other job types, we'll delete the tracking entries from the
        // map, as if we reach this point, then all dependants have already
        // finished executing and we can proceed.
        case *channeldb.LightningNode:
                delete(v.nodeAnnDependencies, route.Vertex(msg.PubKeyBytes))
        case *lnwire.NodeAnnouncement:
                delete(v.nodeAnnDependencies, route.Vertex(msg.NodeID))
        case *lnwire.ChannelUpdate1:
                delete(v.chanEdgeDependencies, msg.ShortChannelID)
        case *models.ChannelEdgePolicy:
                shortID := lnwire.NewShortChanIDFromInt(msg.ChannelID)
                delete(v.chanEdgeDependencies, shortID)

        case *lnwire.AnnounceSignatures1:
                return
        }
}

1	package graph
2
3	import (
4	"fmt"
5	"sync"
6
7	"github.com/lightningnetwork/lnd/channeldb"
8	"github.com/lightningnetwork/lnd/channeldb/models"
9	"github.com/lightningnetwork/lnd/lnwire"
10	"github.com/lightningnetwork/lnd/routing/route"
11	)
12
13	// validationSignals contains two signals which allows the ValidationBarrier to
14	// communicate back to the caller whether a dependent should be processed or not
15	// based on whether its parent was successfully validated. Only one of these
16	// signals is to be used at a time.
17	type validationSignals struct {
18	// allow is the signal used to allow a dependent to be processed.
19	allow chan struct{}
20
21	// deny is the signal used to prevent a dependent from being processed.
22	deny chan struct{}
23	}
24
25	// ValidationBarrier is a barrier used to ensure proper validation order while
26	// concurrently validating new announcements for channel edges, and the
27	// attributes of channel edges. It uses this set of maps (protected by this
28	// mutex) to track validation dependencies. For a given channel our
29	// dependencies look like this: chanAnn <- chanUp <- nodeAnn. That is we must
30	// validate the item on the left of the arrow before that on the right.
31	type ValidationBarrier struct {
32	// validationSemaphore is a channel of structs which is used as a
33	// semaphore. Initially we'll fill this with a buffered channel of the
34	// size of the number of active requests. Each new job will consume
35	// from this channel, then restore the value upon completion.
36	validationSemaphore chan struct{}
37
38	// chanAnnFinSignal is map that keep track of all the pending
39	// ChannelAnnouncement like validation job going on. Once the job has
40	// been completed, the channel will be closed unblocking any
41	// dependants.
42	chanAnnFinSignal map[lnwire.ShortChannelID]*validationSignals
43
44	// chanEdgeDependencies tracks any channel edge updates which should
45	// wait until the completion of the ChannelAnnouncement before
46	// proceeding. This is a dependency, as we can't validate the update
47	// before we validate the announcement which creates the channel
48	// itself.
49	chanEdgeDependencies map[lnwire.ShortChannelID]*validationSignals
50
51	// nodeAnnDependencies tracks any pending NodeAnnouncement validation
52	// jobs which should wait until the completion of the
53	// ChannelAnnouncement before proceeding.
54	nodeAnnDependencies map[route.Vertex]*validationSignals
55
56	quit chan struct{}
57	sync.Mutex
58	}
59
60	// NewValidationBarrier creates a new instance of a validation barrier given
61	// the total number of active requests, and a quit channel which will be used
62	// to know when to kill pending, but unfilled jobs.
63	func NewValidationBarrier(numActiveReqs int,
64	quitChan chan struct{}) *ValidationBarrier {	53✔
65		53✔
66	v := &ValidationBarrier{	53✔
67	chanAnnFinSignal: make(map[lnwire.ShortChannelID]*validationSignals),	53✔
68	chanEdgeDependencies: make(map[lnwire.ShortChannelID]*validationSignals),	53✔
69	nodeAnnDependencies: make(map[route.Vertex]*validationSignals),	53✔
70	quit: quitChan,	53✔
71	}	53✔
72		53✔
73	// We'll first initialize a set of semaphores to limit our concurrency	53✔
74	// when validating incoming requests in parallel.	53✔
75	v.validationSemaphore = make(chan struct{}, numActiveReqs)	53✔
76	for i := 0; i < numActiveReqs; i++ {	28,400✔
77	v.validationSemaphore <- struct{}{}	28,347✔
78	}	28,347✔
79
80	return v	53✔
81	}
82
83	// InitJobDependencies will wait for a new job slot to become open, and then
84	// sets up any dependent signals/trigger for the new job
85	func (v *ValidationBarrier) InitJobDependencies(job interface{}) {	374✔
86	// We'll wait for either a new slot to become open, or for the quit	374✔
87	// channel to be closed.	374✔
88	select {	374✔
89	case <-v.validationSemaphore:	374✔
90	case <-v.quit:	×
91	}
92
93	v.Lock()	374✔
94	defer v.Unlock()	374✔
95		374✔
96	// Once a slot is open, we'll examine the message of the job, to see if	374✔
97	// there need to be any dependent barriers set up.	374✔
98	switch msg := job.(type) {	374✔
99
100	// If this is a channel announcement, then we'll need to set up den
101	// tenancies, as we'll need to verify this before we verify any
102	// ChannelUpdates for the same channel, or NodeAnnouncements of nodes
103	// that are involved in this channel. This goes for both the wire
104	// type,s and also the types that we use within the database.
105	case *lnwire.ChannelAnnouncement1:	241✔
106		241✔
107	// We ensure that we only create a new announcement signal iff,	241✔
108	// one doesn't already exist, as there may be duplicate	241✔
109	// announcements. We'll close this signal once the	241✔
110	// ChannelAnnouncement has been validated. This will result in	241✔
111	// all the dependent jobs being unlocked so they can finish	241✔
112	// execution themselves.	241✔
113	if _, ok := v.chanAnnFinSignal[msg.ShortChannelID]; !ok {	482✔
114	// We'll create the channel that we close after we	241✔
115	// validate this announcement. All dependants will	241✔
116	// point to this same channel, so they'll be unblocked	241✔
117	// at the same time.	241✔
118	signals := &validationSignals{	241✔
119	allow: make(chan struct{}),	241✔
120	deny: make(chan struct{}),	241✔
121	}	241✔
122		241✔
123	v.chanAnnFinSignal[msg.ShortChannelID] = signals	241✔
124	v.chanEdgeDependencies[msg.ShortChannelID] = signals	241✔
125		241✔
126	v.nodeAnnDependencies[route.Vertex(msg.NodeID1)] = signals	241✔
127	v.nodeAnnDependencies[route.Vertex(msg.NodeID2)] = signals	241✔
128	}	241✔
129	case *models.ChannelEdgeInfo:	20✔
130		20✔
131	shortID := lnwire.NewShortChanIDFromInt(msg.ChannelID)	20✔
132	if _, ok := v.chanAnnFinSignal[shortID]; !ok {	40✔
133	signals := &validationSignals{	20✔
134	allow: make(chan struct{}),	20✔
135	deny: make(chan struct{}),	20✔
136	}	20✔
137		20✔
138	v.chanAnnFinSignal[shortID] = signals	20✔
139	v.chanEdgeDependencies[shortID] = signals	20✔
140		20✔
141	v.nodeAnnDependencies[route.Vertex(msg.NodeKey1Bytes)] = signals	20✔
142	v.nodeAnnDependencies[route.Vertex(msg.NodeKey2Bytes)] = signals	20✔
143	}	20✔
144
145	// These other types don't have any dependants, so no further
146	// initialization needs to be done beyond just occupying a job slot.
147	case *models.ChannelEdgePolicy:	9✔
148	return	9✔
149	case *lnwire.ChannelUpdate1:	66✔
150	return	66✔
151	case *lnwire.NodeAnnouncement:	27✔
152	// TODO(roasbeef): node ann needs to wait on existing channel updates	27✔
153	return	27✔
154	case *channeldb.LightningNode:	10✔
155	return	10✔
156	case *lnwire.AnnounceSignatures1:	×
157	// TODO(roasbeef): need to wait on chan ann?	×
158	return	×
159	}
160	}
161
162	// CompleteJob returns a free slot to the set of available job slots. This
163	// should be called once a job has been fully completed. Otherwise, slots may
164	// not be returned to the internal scheduling, causing a deadlock when a new
165	// overflow job is attempted.
166	func (v *ValidationBarrier) CompleteJob() {	354✔
167	select {	354✔
168	case v.validationSemaphore <- struct{}{}:	354✔
169	case <-v.quit:	×
170	}
171	}
172
173	// WaitForDependants will block until any jobs that this job dependants on have
174	// finished executing. This allows us a graceful way to schedule goroutines
175	// based on any pending uncompleted dependent jobs. If this job doesn't have an
176	// active dependent, then this function will return immediately.
177	func (v *ValidationBarrier) WaitForDependants(job interface{}) error {	350✔
178		350✔
179	var (	350✔
180	signals *validationSignals	350✔
181	ok bool	350✔
182	jobDesc string	350✔
183	)	350✔
184		350✔
185	// Acquire a lock to read ValidationBarrier.	350✔
186	v.Lock()	350✔
187		350✔
188	switch msg := job.(type) {	350✔
189	// Any ChannelUpdate or NodeAnnouncement jobs will need to wait on the
190	// completion of any active ChannelAnnouncement jobs related to them.
191	case *models.ChannelEdgePolicy:	9✔
192	shortID := lnwire.NewShortChanIDFromInt(msg.ChannelID)	9✔
193	signals, ok = v.chanEdgeDependencies[shortID]	9✔
194		9✔
195	jobDesc = fmt.Sprintf("job=lnwire.ChannelEdgePolicy, scid=%v",	9✔
196	msg.ChannelID)	9✔
197
198	case *channeldb.LightningNode:	10✔
199	vertex := route.Vertex(msg.PubKeyBytes)	10✔
200	signals, ok = v.nodeAnnDependencies[vertex]	10✔
201		10✔
202	jobDesc = fmt.Sprintf("job=channeldb.LightningNode, pub=%s",	10✔
203	vertex)	10✔
204
205	case *lnwire.ChannelUpdate1:	66✔
206	signals, ok = v.chanEdgeDependencies[msg.ShortChannelID]	66✔
207		66✔
208	jobDesc = fmt.Sprintf("job=lnwire.ChannelUpdate, scid=%v",	66✔
209	msg.ShortChannelID.ToUint64())	66✔
210
211	case *lnwire.NodeAnnouncement:	27✔
212	vertex := route.Vertex(msg.NodeID)	27✔
213	signals, ok = v.nodeAnnDependencies[vertex]	27✔
214	jobDesc = fmt.Sprintf("job=lnwire.NodeAnnouncement, pub=%s",	27✔
215	vertex)	27✔
216
217	// Other types of jobs can be executed immediately, so we'll just
218	// return directly.
219	case *lnwire.AnnounceSignatures1:	×
220	// TODO(roasbeef): need to wait on chan ann?
221	case *models.ChannelEdgeInfo:	20✔
222	case *lnwire.ChannelAnnouncement1:	233✔
223	}
224
225	// Release the lock once the above read is finished.
226	v.Unlock()	350✔
227		350✔
228	// If it's not ok, it means either the job is not a dependent type, or	350✔
229	// it doesn't have a dependency signal. Either way, we can return	350✔
230	// early.	350✔
231	if !ok {	664✔
232	return nil	314✔
233	}	314✔
234
235	log.Debugf("Waiting for dependent on %s", jobDesc)	39✔
236		39✔
237	// If we do have an active job, then we'll wait until either the signal	39✔
238	// is closed, or the set of jobs exits.	39✔
239	select {	39✔
240	case <-v.quit:	4✔
241	return NewErrf(ErrVBarrierShuttingDown,	4✔
242	"validation barrier shutting down")	4✔
243
244	case <-signals.deny:	2✔
245	log.Debugf("Signal deny for %s", jobDesc)	2✔
246	return NewErrf(ErrParentValidationFailed,	2✔
247	"parent validation failed")	2✔
248
249	case <-signals.allow:	33✔
250	log.Tracef("Signal allow for %s", jobDesc)	33✔
251	return nil	33✔
252	}
253	}
254
255	// SignalDependants will allow/deny any jobs that are dependent on this job that
256	// they can continue execution. If the job doesn't have any dependants, then
257	// this function sill exit immediately.
258	func (v *ValidationBarrier) SignalDependants(job interface{}, allow bool) {	346✔
259	v.Lock()	346✔
260	defer v.Unlock()	346✔
261		346✔
262	switch msg := job.(type) {	346✔
263
264	// If we've just finished executing a ChannelAnnouncement, then we'll
265	// close out the signal, and remove the signal from the map of active
266	// ones. This will allow/deny any dependent jobs to continue execution.
267	case *models.ChannelEdgeInfo:	20✔
268	shortID := lnwire.NewShortChanIDFromInt(msg.ChannelID)	20✔
269	finSignals, ok := v.chanAnnFinSignal[shortID]	20✔
270	if ok {	40✔
271	if allow {	37✔
272	close(finSignals.allow)	17✔
273	} else {	20✔
274	close(finSignals.deny)	3✔
275	}	3✔
276	delete(v.chanAnnFinSignal, shortID)	20✔
277	}
278	case *lnwire.ChannelAnnouncement1:	237✔
279	finSignals, ok := v.chanAnnFinSignal[msg.ShortChannelID]	237✔
280	if ok {	474✔
281	if allow {	268✔
282	close(finSignals.allow)	31✔
283	} else {	237✔
284	close(finSignals.deny)	206✔
285	}	206✔
286	delete(v.chanAnnFinSignal, msg.ShortChannelID)	237✔
287	}
288
289	delete(v.chanEdgeDependencies, msg.ShortChannelID)	237✔
290
291	// For all other job types, we'll delete the tracking entries from the
292	// map, as if we reach this point, then all dependants have already
293	// finished executing and we can proceed.
294	case *channeldb.LightningNode:	10✔
295	delete(v.nodeAnnDependencies, route.Vertex(msg.PubKeyBytes))	10✔
296	case *lnwire.NodeAnnouncement:	27✔
297	delete(v.nodeAnnDependencies, route.Vertex(msg.NodeID))	27✔
298	case *lnwire.ChannelUpdate1:	58✔
299	delete(v.chanEdgeDependencies, msg.ShortChannelID)	58✔
300	case *models.ChannelEdgePolicy:	9✔
301	shortID := lnwire.NewShortChanIDFromInt(msg.ChannelID)	9✔
302	delete(v.chanEdgeDependencies, shortID)	9✔
303
304	case *lnwire.AnnounceSignatures1:	×
305	return	×
306	}
307	}

lightningnetwork / lnd / 12065142459

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