Issue #1829 - Revert "Issue #1751"

netwerk/dns/mdns/libmdns/nsDNSServiceDiscovery.h

@@ -0,0 +1,49 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#ifndef mozilla_netwerk_dns_mdns_libmdns_nsDNSServiceDiscovery_h
+#define mozilla_netwerk_dns_mdns_libmdns_nsDNSServiceDiscovery_h
+
+#include "MDNSResponderOperator.h"
+#include "nsIDNSServiceDiscovery.h"
+#include "nsCOMPtr.h"
+#include "mozilla/RefPtr.h"
+#include "nsRefPtrHashtable.h"
+
+namespace mozilla {
+namespace net {
+
+class BrowseOperator;
+class RegisterOperator;
+
+class nsDNSServiceDiscovery final : public nsIDNSServiceDiscovery
+{
+public:
+  NS_DECL_THREADSAFE_ISUPPORTS
+  NS_DECL_NSIDNSSERVICEDISCOVERY
+
+  explicit nsDNSServiceDiscovery() = default;
+
+  /*
+  ** The mDNS service is started on demand. If no one uses, mDNS service will not
+  ** start. Therefore, all operations before service started will fail
+  ** and get error code |kDNSServiceErr_ServiceNotRunning| defined in dns_sd.h.
+  **/
+  nsresult Init();
+
+  nsresult StopDiscovery(nsIDNSServiceDiscoveryListener* aListener);
+  nsresult UnregisterService(nsIDNSRegistrationListener* aListener);
+
+private:
+  virtual ~nsDNSServiceDiscovery();
+
+  nsRefPtrHashtable<nsISupportsHashKey, BrowseOperator> mDiscoveryMap;
+  nsRefPtrHashtable<nsISupportsHashKey, RegisterOperator> mRegisterMap;
+};
+
+} // namespace net
+} // namespace mozilla
+
+#endif // mozilla_netwerk_dns_mdns_libmdns_nsDNSServiceDiscovery_h