Wade Guthrie | 64b4c14 | 2012-08-20 15:21:01 -0700 | [diff] [blame] | 1 | // Copyright (c) 2012 The Chromium OS Authors. All rights reserved. |
| 2 | // Use of this source code is governed by a BSD-style license that can be |
| 3 | // found in the LICENSE file. |
| 4 | |
| 5 | // This class is a callback object that observes all nl80211 events that come |
| 6 | // up from the kernel. |
| 7 | |
| 8 | #ifndef SHILL_CALLBACK80211_OBJECT_H |
| 9 | #define SHILL_CALLBACK80211_OBJECT_H |
| 10 | |
| 11 | #include <iomanip> |
| 12 | #include <map> |
| 13 | #include <string> |
| 14 | |
| 15 | #include <base/basictypes.h> |
| 16 | #include <base/bind.h> |
| 17 | #include <base/lazy_instance.h> |
| 18 | |
Wade Guthrie | 64b4c14 | 2012-08-20 15:21:01 -0700 | [diff] [blame] | 19 | namespace shill { |
| 20 | |
Wade Guthrie | d4977f2 | 2012-08-22 12:37:54 -0700 | [diff] [blame] | 21 | class Config80211; |
| 22 | class Metrics; |
Wade Guthrie | 64b4c14 | 2012-08-20 15:21:01 -0700 | [diff] [blame] | 23 | class UserBoundNlMessage; |
| 24 | |
| 25 | // Example Config80211 callback object; the callback prints a description of |
| 26 | // each message with its attributes. You want to make it a singleton so that |
| 27 | // its life isn't dependent on any other object (plus, since this handles |
| 28 | // global events from msg80211, you only want/need one). |
| 29 | class Callback80211Object { |
| 30 | public: |
| 31 | Callback80211Object(); |
| 32 | virtual ~Callback80211Object(); |
| 33 | |
| 34 | // Get a pointer to the singleton Callback80211Object. |
| 35 | static Callback80211Object *GetInstance(); |
| 36 | |
| 37 | // Install ourselves as a callback. Done automatically by constructor. |
| 38 | bool InstallAsCallback(); |
| 39 | |
| 40 | // Deinstall ourselves as a callback. Done automatically by destructor. |
| 41 | bool DeinstallAsCallback(); |
| 42 | |
| 43 | // Simple accessor. |
| 44 | void set_config80211(Config80211 *config80211) { config80211_ = config80211; } |
| 45 | |
Wade Guthrie | d4977f2 | 2012-08-22 12:37:54 -0700 | [diff] [blame] | 46 | // Simple accessor. |
| 47 | void set_metrics(Metrics *metrics) { metrics_ = metrics; } |
| 48 | |
Wade Guthrie | 64b4c14 | 2012-08-20 15:21:01 -0700 | [diff] [blame] | 49 | protected: |
| 50 | friend struct base::DefaultLazyInstanceTraits<Callback80211Object>; |
| 51 | |
| 52 | private: |
| 53 | // When installed, this is the method Config80211 will call when it gets a |
| 54 | // message from the mac80211 drivers. |
| 55 | void Config80211MessageCallback(const UserBoundNlMessage &msg); |
| 56 | |
| 57 | static const char kMetricLinkDisconnectCount[]; |
| 58 | |
| 59 | Config80211 *config80211_; |
| 60 | |
Wade Guthrie | d4977f2 | 2012-08-22 12:37:54 -0700 | [diff] [blame] | 61 | Metrics *metrics_; |
| 62 | |
Wade Guthrie | 64b4c14 | 2012-08-20 15:21:01 -0700 | [diff] [blame] | 63 | // Config80211MessageCallback method bound to this object to install as a |
| 64 | // callback. |
| 65 | base::WeakPtrFactory<Callback80211Object> weak_ptr_factory_; |
| 66 | }; |
| 67 | |
| 68 | } // namespace shill |
| 69 | |
| 70 | #endif // SHILL_CALLBACK80211_OBJECT_H |