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Code Issues Releases Wiki Activity

Remove unnecessary state variable.

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This commit is contained in:
Joachim Bauch 2024-02-22 14:13:05 +01:00
parent 29b0b06f6d
commit 45be0ad2fd
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GPG key ID: 77C1D22D53E15F02
1 changed files with 6 additions and 11 deletions
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17
dns_monitor.go
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@ -43,8 +43,7 @@ const (
type DnsMonitorCallback = func(entry *DnsMonitorEntry, all []net.IP, add []net.IP, keep []net.IP, remove []net.IP)
type DnsMonitorEntry struct {
removing atomic.Bool
entry *dnsMonitorEntry
entry atomic.Pointer[dnsMonitorEntry]
url string
callback DnsMonitorCallback
}
@ -222,14 +221,15 @@ func (m *DnsMonitor) Add(target string, callback DnsMonitorCallback) (*DnsMonito
}
m.hostnames[hostname] = entry
}
e.entry = entry
e.entry.Store(entry)
entry.addEntry(e)
m.cond.Signal()
return e, nil
}
func (m *DnsMonitor) Remove(entry *DnsMonitorEntry) {
if !entry.removing.CompareAndSwap(false, true) {
oldEntry := entry.entry.Swap(nil)
if oldEntry == nil {
// Already removed.
return
}
@ -247,16 +247,11 @@ func (m *DnsMonitor) Remove(entry *DnsMonitorEntry) {
}
defer m.mu.Unlock()
if entry.entry == nil {
return
}
e, found := m.hostnames[entry.entry.hostname]
e, found := m.hostnames[oldEntry.hostname]
if !found {
return
}
entry.entry = nil
if e.removeEntry(entry) {
delete(m.hostnames, e.hostname)
}
@ -273,7 +268,7 @@ func (m *DnsMonitor) clearRemoved() {
for hostname, entry := range m.hostnames {
deleted := false
for e := range entry.entries {
if e.removing.Load() {
if e.entry.Load() == nil {
delete(entry.entries, e)
deleted = true
}