mirror of
https://source.quilibrium.com/quilibrium/ceremonyclient.git
synced 2024-11-15 20:55:17 +00:00
691 lines
18 KiB
Go
691 lines
18 KiB
Go
package transport_integration
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import (
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"bytes"
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"context"
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"crypto/rand"
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"errors"
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"fmt"
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"io"
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"net"
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"runtime"
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"strings"
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"sync"
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"sync/atomic"
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"testing"
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"time"
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"github.com/libp2p/go-libp2p"
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"github.com/libp2p/go-libp2p/config"
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"github.com/libp2p/go-libp2p/core/connmgr"
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"github.com/libp2p/go-libp2p/core/host"
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"github.com/libp2p/go-libp2p/core/network"
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"github.com/libp2p/go-libp2p/core/peer"
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"github.com/libp2p/go-libp2p/core/sec"
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rcmgr "github.com/libp2p/go-libp2p/p2p/host/resource-manager"
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"github.com/libp2p/go-libp2p/p2p/muxer/yamux"
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"github.com/libp2p/go-libp2p/p2p/net/swarm"
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"github.com/libp2p/go-libp2p/p2p/protocol/ping"
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"github.com/libp2p/go-libp2p/p2p/security/noise"
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tls "github.com/libp2p/go-libp2p/p2p/security/tls"
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libp2pwebrtc "github.com/libp2p/go-libp2p/p2p/transport/webrtc"
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"github.com/multiformats/go-multiaddr"
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"github.com/stretchr/testify/require"
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)
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type TransportTestCase struct {
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Name string
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HostGenerator func(t *testing.T, opts TransportTestCaseOpts) host.Host
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}
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type TransportTestCaseOpts struct {
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NoListen bool
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NoRcmgr bool
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ConnGater connmgr.ConnectionGater
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ResourceManager network.ResourceManager
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}
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func transformOpts(opts TransportTestCaseOpts) []config.Option {
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var libp2pOpts []libp2p.Option
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if opts.NoRcmgr {
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libp2pOpts = append(libp2pOpts, libp2p.ResourceManager(&network.NullResourceManager{}))
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}
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if opts.ConnGater != nil {
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libp2pOpts = append(libp2pOpts, libp2p.ConnectionGater(opts.ConnGater))
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}
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if opts.ResourceManager != nil {
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libp2pOpts = append(libp2pOpts, libp2p.ResourceManager(opts.ResourceManager))
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}
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return libp2pOpts
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}
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var transportsToTest = []TransportTestCase{
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{
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Name: "TCP / Noise / Yamux",
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HostGenerator: func(t *testing.T, opts TransportTestCaseOpts) host.Host {
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libp2pOpts := transformOpts(opts)
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libp2pOpts = append(libp2pOpts, libp2p.Security(noise.ID, noise.New))
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libp2pOpts = append(libp2pOpts, libp2p.Muxer(yamux.ID, yamux.DefaultTransport))
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if opts.NoListen {
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libp2pOpts = append(libp2pOpts, libp2p.NoListenAddrs)
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} else {
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libp2pOpts = append(libp2pOpts, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0"))
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}
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h, err := libp2p.New(libp2pOpts...)
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require.NoError(t, err)
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return h
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},
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},
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{
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Name: "TCP / TLS / Yamux",
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HostGenerator: func(t *testing.T, opts TransportTestCaseOpts) host.Host {
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libp2pOpts := transformOpts(opts)
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libp2pOpts = append(libp2pOpts, libp2p.Security(tls.ID, tls.New))
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libp2pOpts = append(libp2pOpts, libp2p.Muxer(yamux.ID, yamux.DefaultTransport))
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if opts.NoListen {
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libp2pOpts = append(libp2pOpts, libp2p.NoListenAddrs)
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} else {
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libp2pOpts = append(libp2pOpts, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0"))
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}
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h, err := libp2p.New(libp2pOpts...)
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require.NoError(t, err)
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return h
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},
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},
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{
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Name: "WebSocket",
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HostGenerator: func(t *testing.T, opts TransportTestCaseOpts) host.Host {
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libp2pOpts := transformOpts(opts)
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if opts.NoListen {
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libp2pOpts = append(libp2pOpts, libp2p.NoListenAddrs)
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} else {
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libp2pOpts = append(libp2pOpts, libp2p.ListenAddrStrings("/ip4/127.0.0.1/tcp/0/ws"))
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}
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h, err := libp2p.New(libp2pOpts...)
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require.NoError(t, err)
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return h
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},
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},
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{
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Name: "QUIC",
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HostGenerator: func(t *testing.T, opts TransportTestCaseOpts) host.Host {
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libp2pOpts := transformOpts(opts)
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if opts.NoListen {
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libp2pOpts = append(libp2pOpts, libp2p.NoListenAddrs)
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} else {
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libp2pOpts = append(libp2pOpts, libp2p.ListenAddrStrings("/ip4/127.0.0.1/udp/0/quic-v1"))
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}
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h, err := libp2p.New(libp2pOpts...)
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require.NoError(t, err)
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return h
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},
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},
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{
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Name: "WebTransport",
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HostGenerator: func(t *testing.T, opts TransportTestCaseOpts) host.Host {
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libp2pOpts := transformOpts(opts)
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if opts.NoListen {
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libp2pOpts = append(libp2pOpts, libp2p.NoListenAddrs)
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} else {
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libp2pOpts = append(libp2pOpts, libp2p.ListenAddrStrings("/ip4/127.0.0.1/udp/0/quic-v1/webtransport"))
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}
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h, err := libp2p.New(libp2pOpts...)
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require.NoError(t, err)
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return h
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},
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},
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{
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Name: "WebRTC",
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HostGenerator: func(t *testing.T, opts TransportTestCaseOpts) host.Host {
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libp2pOpts := transformOpts(opts)
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libp2pOpts = append(libp2pOpts, libp2p.Transport(libp2pwebrtc.New))
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if opts.NoListen {
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libp2pOpts = append(libp2pOpts, libp2p.NoListenAddrs)
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} else {
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libp2pOpts = append(libp2pOpts, libp2p.ListenAddrStrings("/ip4/127.0.0.1/udp/0/webrtc-direct"))
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}
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h, err := libp2p.New(libp2pOpts...)
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require.NoError(t, err)
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return h
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},
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},
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}
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func TestPing(t *testing.T) {
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for _, tc := range transportsToTest {
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t.Run(tc.Name, func(t *testing.T) {
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h1 := tc.HostGenerator(t, TransportTestCaseOpts{})
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h2 := tc.HostGenerator(t, TransportTestCaseOpts{NoListen: true})
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defer h1.Close()
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defer h2.Close()
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require.NoError(t, h2.Connect(context.Background(), peer.AddrInfo{
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ID: h1.ID(),
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Addrs: h1.Addrs(),
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}))
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ctx := context.Background()
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res := <-ping.Ping(ctx, h2, h1.ID())
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require.NoError(t, res.Error)
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})
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}
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}
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func TestBigPing(t *testing.T) {
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// 64k buffers
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sendBuf := make([]byte, 64<<10)
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recvBuf := make([]byte, 64<<10)
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const totalSends = 64
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// Fill with random bytes
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_, err := rand.Read(sendBuf)
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require.NoError(t, err)
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for _, tc := range transportsToTest {
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t.Run(tc.Name, func(t *testing.T) {
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h1 := tc.HostGenerator(t, TransportTestCaseOpts{})
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h2 := tc.HostGenerator(t, TransportTestCaseOpts{NoListen: true})
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defer h1.Close()
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defer h2.Close()
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require.NoError(t, h2.Connect(context.Background(), peer.AddrInfo{
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ID: h1.ID(),
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Addrs: h1.Addrs(),
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}))
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h1.SetStreamHandler("/big-ping", func(s network.Stream) {
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io.Copy(s, s)
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s.Close()
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})
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errCh := make(chan error, 1)
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allocs := testing.AllocsPerRun(10, func() {
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s, err := h2.NewStream(context.Background(), h1.ID(), "/big-ping")
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require.NoError(t, err)
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defer s.Close()
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go func() {
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for i := 0; i < totalSends; i++ {
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_, err := io.ReadFull(s, recvBuf)
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if err != nil {
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errCh <- err
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return
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}
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if !bytes.Equal(sendBuf, recvBuf) {
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errCh <- fmt.Errorf("received data does not match sent data")
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}
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}
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_, err = s.Read([]byte{0})
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errCh <- err
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}()
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for i := 0; i < totalSends; i++ {
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s.Write(sendBuf)
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}
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s.CloseWrite()
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require.ErrorIs(t, <-errCh, io.EOF)
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})
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if int(allocs) > (len(sendBuf)*totalSends)/4 {
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t.Logf("Expected fewer allocs, got: %f", allocs)
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}
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})
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}
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}
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// TestLotsOfDataManyStreams tests sending a lot of data on multiple streams.
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func TestLotsOfDataManyStreams(t *testing.T) {
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// Skip on windows because of https://github.com/libp2p/go-libp2p/issues/2341
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if runtime.GOOS == "windows" {
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t.Skip("Skipping on windows because of https://github.com/libp2p/go-libp2p/issues/2341")
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}
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// 64k buffer
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const bufSize = 64 << 10
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sendBuf := [bufSize]byte{}
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const totalStreams = 500
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const parallel = 8
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// Total sends are > 20MiB
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require.Greater(t, len(sendBuf)*totalStreams, 20<<20)
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t.Log("Total sends:", len(sendBuf)*totalStreams)
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// Fill with random bytes
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_, err := rand.Read(sendBuf[:])
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require.NoError(t, err)
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for _, tc := range transportsToTest {
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t.Run(tc.Name, func(t *testing.T) {
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h1 := tc.HostGenerator(t, TransportTestCaseOpts{})
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h2 := tc.HostGenerator(t, TransportTestCaseOpts{NoListen: true})
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defer h1.Close()
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defer h2.Close()
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start := time.Now()
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defer func() {
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t.Log("Total time:", time.Since(start))
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}()
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require.NoError(t, h2.Connect(context.Background(), peer.AddrInfo{
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ID: h1.ID(),
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Addrs: h1.Addrs(),
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}))
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h1.SetStreamHandler("/big-ping", func(s network.Stream) {
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io.Copy(s, s)
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s.Close()
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})
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sem := make(chan struct{}, parallel)
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var wg sync.WaitGroup
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for i := 0; i < totalStreams; i++ {
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wg.Add(1)
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sem <- struct{}{}
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go func() {
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defer wg.Done()
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recvBuf := [bufSize]byte{}
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defer func() { <-sem }()
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s, err := h2.NewStream(context.Background(), h1.ID(), "/big-ping")
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require.NoError(t, err)
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defer s.Close()
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_, err = s.Write(sendBuf[:])
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require.NoError(t, err)
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s.CloseWrite()
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_, err = io.ReadFull(s, recvBuf[:])
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require.NoError(t, err)
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require.Equal(t, sendBuf, recvBuf)
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_, err = s.Read([]byte{0})
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require.ErrorIs(t, err, io.EOF)
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}()
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}
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wg.Wait()
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})
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}
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}
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func TestManyStreams(t *testing.T) {
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const streamCount = 128
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for _, tc := range transportsToTest {
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t.Run(tc.Name, func(t *testing.T) {
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h1 := tc.HostGenerator(t, TransportTestCaseOpts{NoRcmgr: true})
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h2 := tc.HostGenerator(t, TransportTestCaseOpts{NoListen: true, NoRcmgr: true})
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defer h1.Close()
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defer h2.Close()
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require.NoError(t, h2.Connect(context.Background(), peer.AddrInfo{
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ID: h1.ID(),
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Addrs: h1.Addrs(),
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}))
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h1.SetStreamHandler("echo", func(s network.Stream) {
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io.Copy(s, s)
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s.CloseWrite()
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})
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streams := make([]network.Stream, streamCount)
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for i := 0; i < streamCount; i++ {
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s, err := h2.NewStream(context.Background(), h1.ID(), "echo")
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require.NoError(t, err)
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streams[i] = s
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}
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wg := sync.WaitGroup{}
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wg.Add(streamCount)
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errCh := make(chan error, 1)
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for _, s := range streams {
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go func(s network.Stream) {
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defer wg.Done()
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s.Write([]byte("hello"))
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s.CloseWrite()
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b, err := io.ReadAll(s)
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if err == nil {
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if !bytes.Equal(b, []byte("hello")) {
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err = fmt.Errorf("received data does not match sent data")
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}
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}
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if err != nil {
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select {
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case errCh <- err:
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default:
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}
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}
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}(s)
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}
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wg.Wait()
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close(errCh)
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require.NoError(t, <-errCh)
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for _, s := range streams {
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require.NoError(t, s.Close())
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}
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})
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}
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}
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// TestMoreStreamsThanOurLimits tests handling more streams than our and the
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// peer's resource limits. It spawns 1024 Go routines that try to open a stream
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// and send and receive data. If they encounter an error they'll try again after
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// a sleep. If the transport is well behaved, eventually all Go routines will
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// have sent and received a message.
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func TestMoreStreamsThanOurLimits(t *testing.T) {
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const streamCount = 1024
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for _, tc := range transportsToTest {
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t.Run(tc.Name, func(t *testing.T) {
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if strings.Contains(tc.Name, "WebRTC") {
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t.Skip("This test potentially exhausts the uint16 WebRTC stream ID space.")
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}
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listenerLimits := rcmgr.PartialLimitConfig{
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PeerDefault: rcmgr.ResourceLimits{
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Streams: 32,
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StreamsInbound: 16,
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StreamsOutbound: 16,
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},
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}
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r, err := rcmgr.NewResourceManager(rcmgr.NewFixedLimiter(listenerLimits.Build(rcmgr.DefaultLimits.AutoScale())))
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require.NoError(t, err)
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listener := tc.HostGenerator(t, TransportTestCaseOpts{ResourceManager: r})
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dialer := tc.HostGenerator(t, TransportTestCaseOpts{NoListen: true, NoRcmgr: true})
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defer listener.Close()
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defer dialer.Close()
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require.NoError(t, dialer.Connect(context.Background(), peer.AddrInfo{
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ID: listener.ID(),
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Addrs: listener.Addrs(),
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}))
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var handledStreams atomic.Int32
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var sawFirstErr atomic.Bool
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workQueue := make(chan struct{}, streamCount)
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for i := 0; i < streamCount; i++ {
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workQueue <- struct{}{}
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}
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close(workQueue)
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listener.SetStreamHandler("echo", func(s network.Stream) {
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// Wait a bit so that we have more parallel streams open at the same time
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time.Sleep(time.Millisecond * 10)
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io.Copy(s, s)
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s.Close()
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})
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wg := sync.WaitGroup{}
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errCh := make(chan error, 1)
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var completedStreams atomic.Int32
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const maxWorkerCount = streamCount
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workerCount := 4
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var startWorker func(workerIdx int)
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startWorker = func(workerIdx int) {
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wg.Add(1)
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defer wg.Done()
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for {
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_, ok := <-workQueue
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if !ok {
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return
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}
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// Inline function so we can use defer
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func() {
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var didErr bool
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defer completedStreams.Add(1)
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defer func() {
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// Only the first worker adds more workers
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if workerIdx == 0 && !didErr && !sawFirstErr.Load() {
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nextWorkerCount := workerCount * 2
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if nextWorkerCount < maxWorkerCount {
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for i := workerCount; i < nextWorkerCount; i++ {
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go startWorker(i)
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}
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workerCount = nextWorkerCount
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}
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}
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}()
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var s network.Stream
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var err error
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// maxRetries is an arbitrary retry amount if there's any error.
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maxRetries := streamCount * 4
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shouldRetry := func(err error) bool {
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didErr = true
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sawFirstErr.Store(true)
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maxRetries--
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if maxRetries == 0 || len(errCh) > 0 {
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select {
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case errCh <- errors.New("max retries exceeded"):
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default:
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}
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return false
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}
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return true
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}
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for {
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s, err = dialer.NewStream(context.Background(), listener.ID(), "echo")
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if err != nil {
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if shouldRetry(err) {
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time.Sleep(50 * time.Millisecond)
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continue
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}
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t.Logf("opening stream failed: %v", err)
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return
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}
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err = func(s network.Stream) error {
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defer s.Close()
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err = s.SetDeadline(time.Now().Add(100 * time.Millisecond))
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if err != nil {
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return err
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}
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_, err = s.Write([]byte("hello"))
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if err != nil {
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return err
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}
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err = s.CloseWrite()
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if err != nil {
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return err
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}
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b, err := io.ReadAll(s)
|
|
if err != nil {
|
|
return err
|
|
}
|
|
if !bytes.Equal(b, []byte("hello")) {
|
|
return errors.New("received data does not match sent data")
|
|
}
|
|
handledStreams.Add(1)
|
|
|
|
return nil
|
|
}(s)
|
|
if err != nil && shouldRetry(err) {
|
|
time.Sleep(50 * time.Millisecond)
|
|
continue
|
|
}
|
|
return
|
|
}
|
|
}()
|
|
}
|
|
}
|
|
|
|
// Create any initial parallel workers
|
|
for i := 1; i < workerCount; i++ {
|
|
go startWorker(i)
|
|
}
|
|
|
|
// Start the first worker
|
|
startWorker(0)
|
|
|
|
wg.Wait()
|
|
close(errCh)
|
|
|
|
require.NoError(t, <-errCh)
|
|
require.Equal(t, streamCount, int(handledStreams.Load()))
|
|
require.True(t, sawFirstErr.Load(), "Expected to see an error from the peer")
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestListenerStreamResets(t *testing.T) {
|
|
for _, tc := range transportsToTest {
|
|
t.Run(tc.Name, func(t *testing.T) {
|
|
h1 := tc.HostGenerator(t, TransportTestCaseOpts{})
|
|
h2 := tc.HostGenerator(t, TransportTestCaseOpts{NoListen: true})
|
|
defer h1.Close()
|
|
defer h2.Close()
|
|
|
|
require.NoError(t, h2.Connect(context.Background(), peer.AddrInfo{
|
|
ID: h1.ID(),
|
|
Addrs: h1.Addrs(),
|
|
}))
|
|
|
|
h1.SetStreamHandler("reset", func(s network.Stream) {
|
|
s.Reset()
|
|
})
|
|
|
|
s, err := h2.NewStream(context.Background(), h1.ID(), "reset")
|
|
if err != nil {
|
|
require.ErrorIs(t, err, network.ErrReset)
|
|
return
|
|
}
|
|
|
|
_, err = s.Read([]byte{0})
|
|
require.ErrorIs(t, err, network.ErrReset)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestDialerStreamResets(t *testing.T) {
|
|
for _, tc := range transportsToTest {
|
|
t.Run(tc.Name, func(t *testing.T) {
|
|
h1 := tc.HostGenerator(t, TransportTestCaseOpts{})
|
|
h2 := tc.HostGenerator(t, TransportTestCaseOpts{NoListen: true})
|
|
defer h1.Close()
|
|
defer h2.Close()
|
|
|
|
require.NoError(t, h2.Connect(context.Background(), peer.AddrInfo{
|
|
ID: h1.ID(),
|
|
Addrs: h1.Addrs(),
|
|
}))
|
|
|
|
errCh := make(chan error, 1)
|
|
acceptedCh := make(chan struct{}, 1)
|
|
h1.SetStreamHandler("echo", func(s network.Stream) {
|
|
acceptedCh <- struct{}{}
|
|
_, err := io.Copy(s, s)
|
|
errCh <- err
|
|
})
|
|
|
|
s, err := h2.NewStream(context.Background(), h1.ID(), "echo")
|
|
require.NoError(t, err)
|
|
s.Write([]byte{})
|
|
<-acceptedCh
|
|
s.Reset()
|
|
require.ErrorIs(t, <-errCh, network.ErrReset)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestStreamReadDeadline(t *testing.T) {
|
|
for _, tc := range transportsToTest {
|
|
t.Run(tc.Name, func(t *testing.T) {
|
|
h1 := tc.HostGenerator(t, TransportTestCaseOpts{})
|
|
h2 := tc.HostGenerator(t, TransportTestCaseOpts{NoListen: true})
|
|
defer h1.Close()
|
|
defer h2.Close()
|
|
|
|
require.NoError(t, h2.Connect(context.Background(), peer.AddrInfo{
|
|
ID: h1.ID(),
|
|
Addrs: h1.Addrs(),
|
|
}))
|
|
|
|
h1.SetStreamHandler("echo", func(s network.Stream) {
|
|
io.Copy(s, s)
|
|
})
|
|
|
|
s, err := h2.NewStream(context.Background(), h1.ID(), "echo")
|
|
require.NoError(t, err)
|
|
require.NoError(t, s.SetReadDeadline(time.Now().Add(100*time.Millisecond)))
|
|
_, err = s.Read([]byte{0})
|
|
require.Error(t, err)
|
|
require.Contains(t, err.Error(), "deadline")
|
|
var nerr net.Error
|
|
require.ErrorAs(t, err, &nerr, "expected a net.Error")
|
|
require.True(t, nerr.Timeout(), "expected net.Error.Timeout() == true")
|
|
// now test that the stream is still usable
|
|
s.SetReadDeadline(time.Time{})
|
|
_, err = s.Write([]byte("foobar"))
|
|
require.NoError(t, err)
|
|
b := make([]byte, 6)
|
|
_, err = s.Read(b)
|
|
require.Equal(t, "foobar", string(b))
|
|
require.NoError(t, err)
|
|
})
|
|
}
|
|
}
|
|
|
|
func TestDiscoverPeerIDFromSecurityNegotiation(t *testing.T) {
|
|
// extracts the peerID of the dialed peer from the error
|
|
extractPeerIDFromError := func(inputErr error) (peer.ID, error) {
|
|
var dialErr *swarm.DialError
|
|
if !errors.As(inputErr, &dialErr) {
|
|
return "", inputErr
|
|
}
|
|
innerErr := dialErr.DialErrors[0].Cause
|
|
|
|
var peerIDMismatchErr sec.ErrPeerIDMismatch
|
|
if errors.As(innerErr, &peerIDMismatchErr) {
|
|
return peerIDMismatchErr.Actual, nil
|
|
}
|
|
|
|
return "", inputErr
|
|
}
|
|
|
|
for _, tc := range transportsToTest {
|
|
t.Run(tc.Name, func(t *testing.T) {
|
|
h1 := tc.HostGenerator(t, TransportTestCaseOpts{})
|
|
h2 := tc.HostGenerator(t, TransportTestCaseOpts{NoListen: true})
|
|
defer h1.Close()
|
|
defer h2.Close()
|
|
|
|
// runs a test to verify we can extract the peer ID from a target with just its address
|
|
t.Helper()
|
|
ctx, cancel := context.WithCancel(context.Background())
|
|
defer cancel()
|
|
|
|
// Use a bogus peer ID so that when we connect to the target we get an error telling
|
|
// us the targets real peer ID
|
|
bogusPeerId, err := peer.Decode("QmadAdJ3f63JyNs65X7HHzqDwV53ynvCcKtNFvdNaz3nhk")
|
|
require.NoError(t, err, "the hard coded bogus peerID is invalid")
|
|
|
|
ai := &peer.AddrInfo{
|
|
ID: bogusPeerId,
|
|
Addrs: []multiaddr.Multiaddr{h1.Addrs()[0]},
|
|
}
|
|
|
|
// Try connecting with the bogus peer ID
|
|
err = h2.Connect(ctx, *ai)
|
|
require.Error(t, err, "somehow we successfully connected to a bogus peerID!")
|
|
|
|
// Extract the actual peer ID from the error
|
|
newPeerId, err := extractPeerIDFromError(err)
|
|
require.NoError(t, err)
|
|
ai.ID = newPeerId
|
|
// Make sure the new ID is what we expected
|
|
require.Equal(t, h1.ID(), ai.ID)
|
|
|
|
// and just to double-check try connecting again to make sure it works
|
|
require.NoError(t, h2.Connect(ctx, *ai))
|
|
})
|
|
}
|
|
}
|