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Capture server references before releasing mutex to avoid race condition

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This commit is contained in:
Tobias Gesellchen
2026-02-19 08:44:26 +01:00
parent e4c12471b4
commit 72d75133c4
1 changed files with 6 additions and 2 deletions
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pkg/discovery/dns.go
+6 -2
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@@ -330,6 +330,10 @@ func (d *DNSDiscovery) Start(addr string) error {
Net: "tcp",
Handler: mux,
}
// Capture server references before releasing mutex to avoid race condition
udpServer := d.udpServer
tcpServer := d.tcpServer
d.mu.Unlock()
errChan := make(chan error, 2)
@@ -337,7 +341,7 @@ func (d *DNSDiscovery) Start(addr string) error {
go func() {
log.Printf("[DNS] UDP Discovery server starting on %s", addr)
if err := d.udpServer.ListenAndServe(); err != nil {
if err := udpServer.ListenAndServe(); err != nil {
errChan <- fmt.Errorf("UDP server failed: %w", err)
}
}()
@@ -345,7 +349,7 @@ func (d *DNSDiscovery) Start(addr string) error {
go func() {
log.Printf("[DNS] TCP Discovery server starting on %s", addr)
if err := d.tcpServer.ListenAndServe(); err != nil {
if err := tcpServer.ListenAndServe(); err != nil {
errChan <- fmt.Errorf("TCP server failed: %w", err)
}
}()