netwerk/base/NetworkConnectivityService.h

   1 /* This Source Code Form is subject to the terms of the Mozilla Public
   2  * License, v. 2.0. If a copy of the MPL was not distributed with this
   3  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   4
   5 #ifndef NetworkConnectivityService_h_
   6 #define NetworkConnectivityService_h_
   7
   8 #include "nsINetworkConnectivityService.h"
   9 #include "nsCOMPtr.h"
  10 #include "nsIObserver.h"
  11 #include "nsIDNSListener.h"
  12 #include "nsIStreamListener.h"
  13 #include "mozilla/net/DNS.h"
  14 #include "mozilla/Mutex.h"
  15
  16 namespace mozilla {
  17 namespace net {
  18
  19 class NetworkConnectivityService : public nsINetworkConnectivityService,
  20                                    public nsIObserver,
  21                                    public nsIDNSListener,
  22                                    public nsIStreamListener {
  23  public:
  24   NS_DECL_ISUPPORTS
  25   NS_DECL_NSINETWORKCONNECTIVITYSERVICE
  26   NS_DECL_NSIOBSERVER
  27   NS_DECL_NSIDNSLISTENER
  28   NS_DECL_NSISTREAMLISTENER
  29   NS_DECL_NSIREQUESTOBSERVER
  30
  31   already_AddRefed<AddrInfo> MapNAT64IPs(AddrInfo* aNewRRSet);
  32
  33   static already_AddRefed<NetworkConnectivityService> GetSingleton();
  34
  35  private:
  36   NetworkConnectivityService();
  37   virtual ~NetworkConnectivityService() = default;
  38
  39   nsresult Init();
  40   // Calls all the check methods
  41   void PerformChecks();
  42
  43   void SaveNAT64Prefixes(nsIDNSRecord* aRecord);
  44
  45   already_AddRefed<nsIChannel> SetupIPCheckChannel(bool ipv4);
  46
  47   // Will be set to OK if the DNS request returned in IP of this type,
  48   //                NOT_AVAILABLE if that type of resolution is not available
  49   //                UNKNOWN if the check wasn't performed
  50   Atomic<ConnectivityState, Relaxed> mDNSv4;
  51   Atomic<ConnectivityState, Relaxed> mDNSv6;
  52
  53   Atomic<ConnectivityState, Relaxed> mIPv4;
  54   Atomic<ConnectivityState, Relaxed> mIPv6;
  55
  56   Atomic<ConnectivityState, Relaxed> mNAT64;
  57
  58   nsTArray<NetAddr> mNAT64Prefixes;
  59
  60   nsCOMPtr<nsICancelable> mDNSv4Request;
  61   nsCOMPtr<nsICancelable> mDNSv6Request;
  62   nsCOMPtr<nsICancelable> mNAT64Request;
  63
  64   nsCOMPtr<nsIChannel> mIPv4Channel;
  65   nsCOMPtr<nsIChannel> mIPv6Channel;
  66
  67   bool mCheckedNetworkId = false;
  68   bool mHasNetworkId = false;
  69
  70   Mutex mLock MOZ_UNANNOTATED;
  71 };
  72
  73 }  // namespace net
  74 }  // namespace mozilla
  75
  76 #endif  // NetworkConnectivityService_h_