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50fee6b27e
This patch calls NetworkConnectivityService::GetSingleton() on the main thread and keeps a ref to the service until shutdown. Even though calling ncs->GetIPv6() off-main-thread is technically a data-race in practice that's OK because only the simple decision whether to send AAAA requests is made based on that value, which in itself is an optimization. I filed bug 1556967 for making the connectivity service thread safe. Differential Revision: https://phabricator.services.mozilla.com/D33765 --HG-- extra : moz-landing-system : lando
58 lines
1.8 KiB
C++
58 lines
1.8 KiB
C++
/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef NetworkConnectivityService_h_
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#define NetworkConnectivityService_h_
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#include "nsINetworkConnectivityService.h"
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#include "nsIObserver.h"
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#include "nsIDNSListener.h"
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#include "nsIStreamListener.h"
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namespace mozilla {
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namespace net {
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class NetworkConnectivityService : public nsINetworkConnectivityService,
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public nsIObserver,
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public nsIDNSListener,
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public nsIStreamListener {
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public:
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NS_DECL_ISUPPORTS
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NS_DECL_NSINETWORKCONNECTIVITYSERVICE
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NS_DECL_NSIOBSERVER
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NS_DECL_NSIDNSLISTENER
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NS_DECL_NSISTREAMLISTENER
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NS_DECL_NSIREQUESTOBSERVER
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nsresult Init();
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static already_AddRefed<NetworkConnectivityService> GetSingleton();
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private:
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NetworkConnectivityService() = default;
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virtual ~NetworkConnectivityService() = default;
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// Calls all the check methods
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void PerformChecks();
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// Will be set to OK if the DNS request returned in IP of this type,
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// NOT_AVAILABLE if that type of resolution is not available
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// UNKNOWN if the check wasn't performed
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ConnectivityState mDNSv4 = nsINetworkConnectivityService::UNKNOWN;
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ConnectivityState mDNSv6 = nsINetworkConnectivityService::UNKNOWN;
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ConnectivityState mIPv4 = nsINetworkConnectivityService::UNKNOWN;
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ConnectivityState mIPv6 = nsINetworkConnectivityService::UNKNOWN;
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nsCOMPtr<nsICancelable> mDNSv4Request;
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nsCOMPtr<nsICancelable> mDNSv6Request;
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nsCOMPtr<nsIChannel> mIPv4Channel;
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nsCOMPtr<nsIChannel> mIPv6Channel;
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};
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} // namespace net
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} // namespace mozilla
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#endif // NetworkConnectivityService_h_
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