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https://github.com/netbirdio/netbird.git
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5f98524e02
Replace the mutex-guarded callback model of peer.Conn with a per-peer event loop that exclusively owns all mutable connection state. External callers and transport workers post typed events into a non-blocking, coalescing mailbox instead of contending on conn.mu: - offers/answers coalesce to the newest message, a new offer flushes queued candidates of the superseded session - candidates are applied in arrival order from a bounded FIFO - transport state changes are never dropped - the blocking relay dial runs on a helper goroutine with a single dial in flight; signaling I/O (offer/answer sends) runs off the loop conn.mu now only guards the open/close lifecycle. Close posts a close event and waits for the loop teardown; the loop also tears down on engine context cancellation and releases resources of unprocessed events. Delete the Handshaker listener machinery (Listen loop, unbuffered drop-on-busy channels, AsyncOfferListener with its double-processing of the first offer), the never-wired dispatcher package and the unused ICEMonitor.ReconnectCh. Fix a goroutine leak in the WG watcher test that raced with tests mutating the package-level check timing vars.
69 lines
1.5 KiB
Go
69 lines
1.5 KiB
Go
package peer
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import (
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"time"
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"github.com/pion/ice/v4"
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"github.com/netbirdio/netbird/client/internal/peer/conntype"
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"github.com/netbirdio/netbird/route"
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)
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// event is a message processed by the Conn event loop. All mutable Conn state
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// is owned by that loop; producers deliver events through the mailbox and
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// never mutate Conn state directly.
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type event any
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// evClose asks the event loop to tear down the connection. done is closed
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// once the teardown finished.
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type evClose struct {
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signalToRemote bool
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done chan struct{}
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}
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type evRemoteOffer struct {
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offer OfferAnswer
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}
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type evRemoteAnswer struct {
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answer OfferAnswer
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}
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type evRemoteCandidate struct {
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candidate ice.Candidate
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haRoutes route.HAMap
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}
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type evICEReady struct {
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priority conntype.ConnPriority
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info ICEConnInfo
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}
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type evICEDown struct {
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sessionChanged bool
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}
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type evRelayReady struct {
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info RelayConnInfo
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}
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type evRelayDown struct{}
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// evRelayDialDone reports that the relay dial helper goroutine finished,
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// successfully or not, so the loop may dispatch a pending offer.
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type evRelayDialDone struct{}
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type evWGTimeout struct{}
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// evWGHandshake reports the first WireGuard handshake of the current watcher run.
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type evWGHandshake struct {
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when time.Time
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}
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// evWGCheckOK reports a watcher check that observed a fresh handshake,
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// including handshakes of connections that were already up.
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type evWGCheckOK struct{}
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// evGuardTick asks the loop to send a new offer to restore connectivity.
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type evGuardTick struct{}
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