61 lines
929 B
Go
61 lines
929 B
Go
package pcap
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import (
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"sync"
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"time"
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ocmd "git.loafle.net/overflow/commons-go/model/discovery"
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)
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var mtx sync.Mutex
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var instances map[string]PCapScanner
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func init() {
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instances = make(map[string]PCapScanner, 0)
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}
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func RetainScanner(zone *ocmd.Zone) (PCapScanner, error) {
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mtx.Lock()
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defer mtx.Unlock()
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var ps PCapScanner
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var ok bool
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if ps, ok = instances[zone.Network]; !ok {
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ps = newPCapScanner(zone)
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if err := ps.start(); nil != err {
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return nil, err
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}
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instances[zone.Network] = ps
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}
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ps.retain()
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return ps, nil
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}
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func ReleaseScanner(zone *ocmd.Zone) {
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go func() {
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time.Sleep(2 * time.Second)
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mtx.Lock()
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defer mtx.Unlock()
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if ps, ok := instances[zone.Network]; ok {
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if ps.release() {
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ps.stop()
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delete(instances, zone.Network)
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}
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}
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}()
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}
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func ReleaseScannerAll() {
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mtx.Lock()
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defer mtx.Unlock()
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for k, ps := range instances {
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ps.stop()
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delete(instances, k)
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}
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}
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