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p2p
go-p2p-pubsub
Commits
0e387d79
Commit
0e387d79
authored
Apr 02, 2021
by
vyzo
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add support for custom gossipsub protocols and feature tests
parent
2ed84f45
Changes
2
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2 changed files
with
64 additions
and
6 deletions
+64
-6
gossipsub.go
gossipsub.go
+12
-6
gossipsub_feat.go
gossipsub_feat.go
+52
-0
No files found.
gossipsub.go
View file @
0e387d79
...
...
@@ -179,6 +179,9 @@ func NewGossipSub(ctx context.Context, h host.Host, opts ...Option) (*PubSub, er
connect
:
make
(
chan
connectInfo
,
GossipSubMaxPendingConnections
),
mcache
:
NewMessageCache
(
GossipSubHistoryGossip
,
GossipSubHistoryLength
),
protos
:
GossipSubDefaultProtocols
,
feature
:
GossipSubDefaultFeatures
,
// these are configured per router to allow variation in tests
D
:
GossipSubD
,
Dlo
:
GossipSubDlo
,
...
...
@@ -342,6 +345,9 @@ type GossipSubRouter struct {
backoff
map
[
string
]
map
[
peer
.
ID
]
time
.
Time
// prune backoff
connect
chan
connectInfo
// px connection requests
protos
[]
protocol
.
ID
feature
GossipSubFeatureTest
mcache
*
MessageCache
tracer
*
pubsubTracer
score
*
peerScore
...
...
@@ -399,7 +405,7 @@ type connectInfo struct {
}
func
(
gs
*
GossipSubRouter
)
Protocols
()
[]
protocol
.
ID
{
return
[]
proto
col
.
ID
{
GossipSubID_v11
,
GossipSubID_v10
,
FloodSubID
}
return
gs
.
proto
s
}
func
(
gs
*
GossipSubRouter
)
Attach
(
p
*
PubSub
)
{
...
...
@@ -493,7 +499,7 @@ func (gs *GossipSubRouter) EnoughPeers(topic string, suggested int) bool {
fsPeers
,
gsPeers
:=
0
,
0
// floodsub peers
for
p
:=
range
tmap
{
if
gs
.
peers
[
p
]
==
FloodSubID
{
if
!
gs
.
feature
(
GossipSubFeatureMesh
,
gs
.
peers
[
p
])
{
fsPeers
++
}
}
...
...
@@ -905,7 +911,7 @@ func (gs *GossipSubRouter) Publish(msg *Message) {
// floodsub peers
for
p
:=
range
tmap
{
if
gs
.
peers
[
p
]
==
FloodSubID
&&
gs
.
score
.
Score
(
p
)
>=
gs
.
publishThreshold
{
if
!
gs
.
feature
(
GossipSubFeatureMesh
,
gs
.
peers
[
p
])
&&
gs
.
score
.
Score
(
p
)
>=
gs
.
publishThreshold
{
tosend
[
p
]
=
struct
{}{}
}
}
...
...
@@ -1615,7 +1621,7 @@ func (gs *GossipSubRouter) emitGossip(topic string, exclude map[peer.ID]struct{}
for
p
:=
range
gs
.
p
.
topics
[
topic
]
{
_
,
inExclude
:=
exclude
[
p
]
_
,
direct
:=
gs
.
direct
[
p
]
if
!
inExclude
&&
!
direct
&&
(
gs
.
peers
[
p
]
==
GossipSubID_v10
||
gs
.
peers
[
p
]
==
GossipSubID_v11
)
&&
gs
.
score
.
Score
(
p
)
>=
gs
.
gossipThreshold
{
if
!
inExclude
&&
!
direct
&&
gs
.
feature
(
GossipSubFeatureMesh
,
gs
.
peers
[
p
]
)
&&
gs
.
score
.
Score
(
p
)
>=
gs
.
gossipThreshold
{
peers
=
append
(
peers
,
p
)
}
}
...
...
@@ -1738,7 +1744,7 @@ func (gs *GossipSubRouter) piggybackControl(p peer.ID, out *RPC, ctl *pb.Control
}
func
(
gs
*
GossipSubRouter
)
makePrune
(
p
peer
.
ID
,
topic
string
,
doPX
bool
)
*
pb
.
ControlPrune
{
if
gs
.
peers
[
p
]
==
GossipSubID_v10
{
if
!
gs
.
feature
(
GossipSubFeaturePX
,
gs
.
peers
[
p
])
{
// GossipSub v1.0 -- no peer exchange, the peer won't be able to parse it anyway
return
&
pb
.
ControlPrune
{
TopicID
:
&
topic
}
}
...
...
@@ -1783,7 +1789,7 @@ func (gs *GossipSubRouter) getPeers(topic string, count int, filter func(peer.ID
peers
:=
make
([]
peer
.
ID
,
0
,
len
(
tmap
))
for
p
:=
range
tmap
{
if
(
gs
.
peers
[
p
]
==
GossipSubID_v10
||
gs
.
peers
[
p
]
==
GossipSubID_v11
)
&&
filter
(
p
)
{
if
gs
.
feature
(
GossipSubFeatureMesh
,
gs
.
peers
[
p
]
)
&&
filter
(
p
)
{
peers
=
append
(
peers
,
p
)
}
}
...
...
gossipsub_feat.go
0 → 100644
View file @
0e387d79
package
pubsub
import
(
"fmt"
"github.com/libp2p/go-libp2p-core/protocol"
)
// GossipSubFeatureTest is a feature test function; it takes a feature and a protocol ID and
// should return true if the feature is supported by the protocol
type
GossipSubFeatureTest
=
func
(
GossipSubFeature
,
protocol
.
ID
)
bool
// GossipSubFeature is a feature discriminant enum
type
GossipSubFeature
int
const
(
// Protocol supports basic GossipSub Mesh -- gossipsub-v1.0 compatible
GossipSubFeatureMesh
=
iota
// Protocol supports Peer eXchange on prune -- gossipsub-v1.1 compatible
GossipSubFeaturePX
)
// GossipSubDefaultProtocols is the default gossipsub router protocol list
var
GossipSubDefaultProtocols
=
[]
protocol
.
ID
{
GossipSubID_v11
,
GossipSubID_v10
,
FloodSubID
}
// GossipSubDefaultFeatures is the feature test function for the default gossipsub protocols
func
GossipSubDefaultFeatures
(
feat
GossipSubFeature
,
proto
protocol
.
ID
)
bool
{
switch
feat
{
case
GossipSubFeatureMesh
:
return
proto
==
GossipSubID_v11
||
proto
==
GossipSubID_v10
case
GossipSubFeaturePX
:
return
proto
==
GossipSubID_v11
default
:
return
false
}
}
// WithGossipSubProtocols is a gossipsub router option that configures a custom protocol list
// and feature test function
func
WithGossipSubProtocols
(
protos
[]
protocol
.
ID
,
feature
GossipSubFeatureTest
)
Option
{
return
func
(
ps
*
PubSub
)
error
{
gs
,
ok
:=
ps
.
rt
.
(
*
GossipSubRouter
)
if
!
ok
{
return
fmt
.
Errorf
(
"pubsub router is not gossipsub"
)
}
gs
.
protos
=
protos
gs
.
feature
=
feature
return
nil
}
}
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