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memMessenger.go
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/
memMessenger.go
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package libp2p
import (
"context"
"github.com/ElrondNetwork/elrond-go/core/throttler"
"github.com/ElrondNetwork/elrond-go/p2p"
"github.com/ElrondNetwork/elrond-go/p2p/loadBalancer"
"github.com/libp2p/go-libp2p-core/connmgr"
libp2pCrypto "github.com/libp2p/go-libp2p-core/crypto"
"github.com/libp2p/go-libp2p/p2p/net/mock"
)
// NewMemoryMessenger creates a new sandbox testable instance of libP2P messenger
// It should not open ports on current machine
// Should be used only in testing!
func NewMemoryMessenger(
ctx context.Context,
mockNet mocknet.Mocknet,
peerDiscoverer p2p.PeerDiscoverer) (*networkMessenger, error) {
if ctx == nil {
return nil, p2p.ErrNilContext
}
if mockNet == nil {
return nil, p2p.ErrNilMockNet
}
if peerDiscoverer == nil || peerDiscoverer.IsInterfaceNil() {
return nil, p2p.ErrNilPeerDiscoverer
}
h, err := mockNet.GenPeer()
if err != nil {
return nil, err
}
lctx, err := NewLibp2pContext(ctx, NewConnectableHost(h))
if err != nil {
log.LogIfError(h.Close())
return nil, err
}
mes, err := createMessenger(
lctx,
false,
loadBalancer.NewOutgoingChannelLoadBalancer(),
peerDiscoverer,
0,
)
if err != nil {
return nil, err
}
goRoutinesThrottler, err := throttler.NewNumGoRoutineThrottler(broadcastGoRoutines)
if err != nil {
log.LogIfError(h.Close())
return nil, err
}
mes.goRoutinesThrottler = goRoutinesThrottler
return mes, err
}
// NewNetworkMessengerOnFreePort tries to create a new NetworkMessenger on a free port found in the system
// Should be used only in testing!
func NewNetworkMessengerOnFreePort(
ctx context.Context,
p2pPrivKey libp2pCrypto.PrivKey,
conMgr connmgr.ConnManager,
outgoingPLB p2p.ChannelLoadBalancer,
peerDiscoverer p2p.PeerDiscoverer,
) (*networkMessenger, error) {
return NewNetworkMessenger(
ctx,
0,
p2pPrivKey,
conMgr,
outgoingPLB,
peerDiscoverer,
ListenLocalhostAddrWithIp4AndTcp,
0,
)
}