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| 1 | +package libp2p |
| 2 | + |
| 3 | +import ( |
| 4 | + "context" |
| 5 | + "errors" |
| 6 | + "sync" |
| 7 | + "time" |
| 8 | + |
| 9 | + "github.com/benbjohnson/clock" |
| 10 | + "github.com/libp2p/go-libp2p-core/network" |
| 11 | + "github.com/libp2p/go-libp2p-core/peer" |
| 12 | + "github.com/libp2p/go-libp2p-core/protocol" |
| 13 | + rcmgr "github.com/libp2p/go-libp2p-resource-manager" |
| 14 | + "go.uber.org/zap" |
| 15 | +) |
| 16 | + |
| 17 | +type loggingResourceManager struct { |
| 18 | + clock clock.Clock |
| 19 | + logger *zap.SugaredLogger |
| 20 | + delegate network.ResourceManager |
| 21 | + logInterval time.Duration |
| 22 | + |
| 23 | + mut sync.Mutex |
| 24 | + limitExceededErrs uint64 |
| 25 | +} |
| 26 | + |
| 27 | +type loggingScope struct { |
| 28 | + logger *zap.SugaredLogger |
| 29 | + delegate network.ResourceScope |
| 30 | + countErrs func(error) |
| 31 | +} |
| 32 | + |
| 33 | +var _ network.ResourceManager = (*loggingResourceManager)(nil) |
| 34 | + |
| 35 | +func (n *loggingResourceManager) start(ctx context.Context) { |
| 36 | + logInterval := n.logInterval |
| 37 | + if logInterval == 0 { |
| 38 | + logInterval = 10 * time.Second |
| 39 | + } |
| 40 | + ticker := n.clock.Ticker(logInterval) |
| 41 | + go func() { |
| 42 | + defer ticker.Stop() |
| 43 | + for { |
| 44 | + select { |
| 45 | + case <-ticker.C: |
| 46 | + n.mut.Lock() |
| 47 | + errs := n.limitExceededErrs |
| 48 | + n.limitExceededErrs = 0 |
| 49 | + n.mut.Unlock() |
| 50 | + if errs != 0 { |
| 51 | + n.logger.Warnf("Resource limits were exceeded %d times, consider inspecting logs and raising the resource manager limits.", errs) |
| 52 | + } |
| 53 | + case <-ctx.Done(): |
| 54 | + return |
| 55 | + } |
| 56 | + } |
| 57 | + }() |
| 58 | +} |
| 59 | + |
| 60 | +func (n *loggingResourceManager) countErrs(err error) { |
| 61 | + if errors.Is(err, network.ErrResourceLimitExceeded) { |
| 62 | + n.mut.Lock() |
| 63 | + n.limitExceededErrs++ |
| 64 | + n.mut.Unlock() |
| 65 | + } |
| 66 | +} |
| 67 | + |
| 68 | +func (n *loggingResourceManager) ViewSystem(f func(network.ResourceScope) error) error { |
| 69 | + return n.delegate.ViewSystem(f) |
| 70 | +} |
| 71 | +func (n *loggingResourceManager) ViewTransient(f func(network.ResourceScope) error) error { |
| 72 | + return n.delegate.ViewTransient(func(s network.ResourceScope) error { |
| 73 | + return f(&loggingScope{logger: n.logger, delegate: s, countErrs: n.countErrs}) |
| 74 | + }) |
| 75 | +} |
| 76 | +func (n *loggingResourceManager) ViewService(svc string, f func(network.ServiceScope) error) error { |
| 77 | + return n.delegate.ViewService(svc, func(s network.ServiceScope) error { |
| 78 | + return f(&loggingScope{logger: n.logger, delegate: s, countErrs: n.countErrs}) |
| 79 | + }) |
| 80 | +} |
| 81 | +func (n *loggingResourceManager) ViewProtocol(p protocol.ID, f func(network.ProtocolScope) error) error { |
| 82 | + return n.delegate.ViewProtocol(p, func(s network.ProtocolScope) error { |
| 83 | + return f(&loggingScope{logger: n.logger, delegate: s, countErrs: n.countErrs}) |
| 84 | + }) |
| 85 | +} |
| 86 | +func (n *loggingResourceManager) ViewPeer(p peer.ID, f func(network.PeerScope) error) error { |
| 87 | + return n.delegate.ViewPeer(p, func(s network.PeerScope) error { |
| 88 | + return f(&loggingScope{logger: n.logger, delegate: s, countErrs: n.countErrs}) |
| 89 | + }) |
| 90 | +} |
| 91 | +func (n *loggingResourceManager) OpenConnection(dir network.Direction, usefd bool) (network.ConnManagementScope, error) { |
| 92 | + connMgmtScope, err := n.delegate.OpenConnection(dir, usefd) |
| 93 | + n.countErrs(err) |
| 94 | + return connMgmtScope, err |
| 95 | +} |
| 96 | +func (n *loggingResourceManager) OpenStream(p peer.ID, dir network.Direction) (network.StreamManagementScope, error) { |
| 97 | + connMgmtScope, err := n.delegate.OpenStream(p, dir) |
| 98 | + n.countErrs(err) |
| 99 | + return connMgmtScope, err |
| 100 | +} |
| 101 | +func (n *loggingResourceManager) Close() error { |
| 102 | + return n.delegate.Close() |
| 103 | +} |
| 104 | + |
| 105 | +func (s *loggingScope) ReserveMemory(size int, prio uint8) error { |
| 106 | + err := s.delegate.ReserveMemory(size, prio) |
| 107 | + s.countErrs(err) |
| 108 | + return err |
| 109 | +} |
| 110 | +func (s *loggingScope) ReleaseMemory(size int) { |
| 111 | + s.delegate.ReleaseMemory(size) |
| 112 | +} |
| 113 | +func (s *loggingScope) Stat() network.ScopeStat { |
| 114 | + return s.delegate.Stat() |
| 115 | +} |
| 116 | +func (s *loggingScope) BeginSpan() (network.ResourceScopeSpan, error) { |
| 117 | + return s.delegate.BeginSpan() |
| 118 | +} |
| 119 | +func (s *loggingScope) Done() { |
| 120 | + s.delegate.(network.ResourceScopeSpan).Done() |
| 121 | +} |
| 122 | +func (s *loggingScope) Name() string { |
| 123 | + return s.delegate.(network.ServiceScope).Name() |
| 124 | +} |
| 125 | +func (s *loggingScope) Protocol() protocol.ID { |
| 126 | + return s.delegate.(network.ProtocolScope).Protocol() |
| 127 | +} |
| 128 | +func (s *loggingScope) Peer() peer.ID { |
| 129 | + return s.delegate.(network.PeerScope).Peer() |
| 130 | +} |
| 131 | +func (s *loggingScope) PeerScope() network.PeerScope { |
| 132 | + return s.delegate.(network.PeerScope) |
| 133 | +} |
| 134 | +func (s *loggingScope) SetPeer(p peer.ID) error { |
| 135 | + err := s.delegate.(network.ConnManagementScope).SetPeer(p) |
| 136 | + s.countErrs(err) |
| 137 | + return err |
| 138 | +} |
| 139 | +func (s *loggingScope) ProtocolScope() network.ProtocolScope { |
| 140 | + return s.delegate.(network.ProtocolScope) |
| 141 | +} |
| 142 | +func (s *loggingScope) SetProtocol(proto protocol.ID) error { |
| 143 | + err := s.delegate.(network.StreamManagementScope).SetProtocol(proto) |
| 144 | + s.countErrs(err) |
| 145 | + return err |
| 146 | +} |
| 147 | +func (s *loggingScope) ServiceScope() network.ServiceScope { |
| 148 | + return s.delegate.(network.ServiceScope) |
| 149 | +} |
| 150 | +func (s *loggingScope) SetService(srv string) error { |
| 151 | + err := s.delegate.(network.StreamManagementScope).SetService(srv) |
| 152 | + s.countErrs(err) |
| 153 | + return err |
| 154 | +} |
| 155 | +func (s *loggingScope) Limit() rcmgr.Limit { |
| 156 | + return s.delegate.(rcmgr.ResourceScopeLimiter).Limit() |
| 157 | +} |
| 158 | +func (s *loggingScope) SetLimit(limit rcmgr.Limit) { |
| 159 | + s.delegate.(rcmgr.ResourceScopeLimiter).SetLimit(limit) |
| 160 | +} |
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