64 lines
1.0 KiB
Go
64 lines
1.0 KiB
Go
package registry
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import (
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"net"
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"sync"
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"github.com/go-gost/gost/pkg/hosts"
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)
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var (
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hostsReg = &hostsRegistry{}
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)
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func Hosts() *hostsRegistry {
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return hostsReg
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}
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type hostsRegistry struct {
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m sync.Map
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}
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func (r *hostsRegistry) Register(name string, hosts hosts.HostMapper) error {
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if _, loaded := r.m.LoadOrStore(name, hosts); loaded {
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return ErrDup
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}
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return nil
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}
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func (r *hostsRegistry) Unregister(name string) {
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r.m.Delete(name)
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}
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func (r *hostsRegistry) IsRegistered(name string) bool {
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_, ok := r.m.Load(name)
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return ok
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}
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func (r *hostsRegistry) Get(name string) hosts.HostMapper {
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if name == "" {
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return nil
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}
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return &hostsWrapper{name: name}
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}
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func (r *hostsRegistry) get(name string) hosts.HostMapper {
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if v, ok := r.m.Load(name); ok {
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return v.(hosts.HostMapper)
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}
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return nil
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}
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type hostsWrapper struct {
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name string
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}
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func (w *hostsWrapper) Lookup(network, host string) ([]net.IP, bool) {
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v := Hosts().get(w.name)
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if v == nil {
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return nil, false
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}
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return v.Lookup(network, host)
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}
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