-
Notifications
You must be signed in to change notification settings - Fork 3
/
container.go
117 lines (99 loc) · 2.77 KB
/
container.go
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
package lightnode
import (
"context"
"crypto/rand"
"github.com/FavorLabs/favorX/pkg/boson"
"github.com/FavorLabs/favorX/pkg/p2p"
"github.com/FavorLabs/favorX/pkg/topology/model"
"github.com/FavorLabs/favorX/pkg/topology/pslice"
"math/big"
"sync"
)
type Container struct {
base boson.Address
peerMu sync.Mutex // peerMu guards connectedPeers and disconnectedPeers.
connectedPeers *pslice.PSlice
disconnectedPeers *pslice.PSlice
metrics metrics
}
func NewContainer(base boson.Address) *Container {
return &Container{
base: base,
connectedPeers: pslice.New(1, base),
disconnectedPeers: pslice.New(1, base),
metrics: newMetrics(),
}
}
func (c *Container) Connected(ctx context.Context, peer p2p.Peer) {
c.peerMu.Lock()
defer c.peerMu.Unlock()
addr := peer.Address
c.connectedPeers.Add(addr)
c.disconnectedPeers.Remove(addr)
c.metrics.CurrentlyConnectedPeers.Set(float64(c.connectedPeers.Length()))
c.metrics.CurrentlyDisconnectedPeers.Set(float64(c.disconnectedPeers.Length()))
}
func (c *Container) Disconnected(peer p2p.Peer) {
c.peerMu.Lock()
defer c.peerMu.Unlock()
addr := peer.Address
if found := c.connectedPeers.Exists(addr); found {
c.connectedPeers.Remove(addr)
c.disconnectedPeers.Add(addr)
}
c.metrics.CurrentlyConnectedPeers.Set(float64(c.connectedPeers.Length()))
c.metrics.CurrentlyDisconnectedPeers.Set(float64(c.disconnectedPeers.Length()))
}
func (c *Container) Count() int {
return c.connectedPeers.Length()
}
func (c *Container) RandomPeer(not boson.Address) (boson.Address, error) {
c.peerMu.Lock()
defer c.peerMu.Unlock()
var (
cnt = big.NewInt(int64(c.Count()))
addr = boson.ZeroAddress
count = int64(0)
)
PICKPEER:
i, e := rand.Int(rand.Reader, cnt)
if e != nil {
return boson.ZeroAddress, e
}
i64 := i.Int64()
count = 0
_ = c.connectedPeers.EachBinRev(func(peer boson.Address, _ uint8) (bool, bool, error) {
if count == i64 {
addr = peer
return true, false, nil
}
count++
return false, false, nil
})
if addr.Equal(not) {
goto PICKPEER
}
return addr, nil
}
func (c *Container) EachPeer(pf model.EachPeerFunc) error {
return c.connectedPeers.EachBin(pf)
}
func (c *Container) PeerInfo() model.BinInfo {
return model.BinInfo{
BinPopulation: uint(c.connectedPeers.Length()),
BinConnected: uint(c.connectedPeers.Length()),
DisconnectedPeers: peersInfo(c.disconnectedPeers),
ConnectedPeers: peersInfo(c.connectedPeers),
}
}
func peersInfo(s *pslice.PSlice) []*model.PeerInfo {
if s.Length() == 0 {
return nil
}
peers := make([]*model.PeerInfo, 0, s.Length())
_ = s.EachBin(func(addr boson.Address, po uint8) (bool, bool, error) {
peers = append(peers, &model.PeerInfo{Address: addr})
return false, false, nil
})
return peers
}