cloudflared-mirror/tunnelhostnamemapper/tunnelhostnamemapper.go

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package tunnelhostnamemapper
import (
"sync"
"github.com/cloudflare/cloudflared/h2mux"
"github.com/cloudflare/cloudflared/originservice"
)
// TunnelHostnameMapper maps TunnelHostname to an OriginService
type TunnelHostnameMapper struct {
sync.RWMutex
tunnelHostnameToOrigin map[h2mux.TunnelHostname]originservice.OriginService
}
func NewTunnelHostnameMapper() *TunnelHostnameMapper {
return &TunnelHostnameMapper{
tunnelHostnameToOrigin: make(map[h2mux.TunnelHostname]originservice.OriginService),
}
}
// Get an OriginService given a TunnelHostname
func (om *TunnelHostnameMapper) Get(key h2mux.TunnelHostname) (originservice.OriginService, bool) {
om.RLock()
defer om.RUnlock()
originService, ok := om.tunnelHostnameToOrigin[key]
return originService, ok
}
// Add a mapping. If there is already an OriginService with this key, shutdown the old origin service and replace it
// with the new one
func (om *TunnelHostnameMapper) Add(key h2mux.TunnelHostname, os originservice.OriginService) {
om.Lock()
defer om.Unlock()
if oldOS, ok := om.tunnelHostnameToOrigin[key]; ok {
oldOS.Shutdown()
}
om.tunnelHostnameToOrigin[key] = os
}
// DeleteAll mappings, and shutdown all OriginService
func (om *TunnelHostnameMapper) DeleteAll() {
om.Lock()
defer om.Unlock()
for key, os := range om.tunnelHostnameToOrigin {
os.Shutdown()
delete(om.tunnelHostnameToOrigin, key)
}
}