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Side by Side Diff: base/system_monitor/system_monitor.h

Issue 7461141: Rename BASE_API to BASE_EXPORT. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src/
Patch Set: '' Created 9 years, 4 months ago
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1 // Copyright (c) 2011 The Chromium Authors. All rights reserved. 1 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be 2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file. 3 // found in the LICENSE file.
4 4
5 #ifndef BASE_SYSTEM_MONITOR_SYSTEM_MONITOR_H_ 5 #ifndef BASE_SYSTEM_MONITOR_SYSTEM_MONITOR_H_
6 #define BASE_SYSTEM_MONITOR_SYSTEM_MONITOR_H_ 6 #define BASE_SYSTEM_MONITOR_SYSTEM_MONITOR_H_
7 #pragma once 7 #pragma once
8 8
9 #include "base/base_api.h" 9 #include "base/base_export.h"
10 #include "base/basictypes.h" 10 #include "base/basictypes.h"
11 #include "build/build_config.h" 11 #include "build/build_config.h"
12 12
13 // Windows HiRes timers drain the battery faster so we need to know the battery 13 // Windows HiRes timers drain the battery faster so we need to know the battery
14 // status. This isn't true for other platforms. 14 // status. This isn't true for other platforms.
15 #if defined(OS_WIN) 15 #if defined(OS_WIN)
16 #define ENABLE_BATTERY_MONITORING 1 16 #define ENABLE_BATTERY_MONITORING 1
17 #else 17 #else
18 #undef ENABLE_BATTERY_MONITORING 18 #undef ENABLE_BATTERY_MONITORING
19 #endif // !OS_WIN 19 #endif // !OS_WIN
20 20
21 #include "base/observer_list_threadsafe.h" 21 #include "base/observer_list_threadsafe.h"
22 #if defined(ENABLE_BATTERY_MONITORING) 22 #if defined(ENABLE_BATTERY_MONITORING)
23 #include "base/timer.h" 23 #include "base/timer.h"
24 #endif // defined(ENABLE_BATTERY_MONITORING) 24 #endif // defined(ENABLE_BATTERY_MONITORING)
25 25
26 #if defined(OS_MACOSX) 26 #if defined(OS_MACOSX)
27 #include <IOKit/pwr_mgt/IOPMLib.h> 27 #include <IOKit/pwr_mgt/IOPMLib.h>
28 #include <IOKit/IOMessage.h> 28 #include <IOKit/IOMessage.h>
29 #endif // OS_MACOSX 29 #endif // OS_MACOSX
30 30
31 namespace base { 31 namespace base {
32 32
33 // Class for monitoring various system-related subsystems 33 // Class for monitoring various system-related subsystems
34 // such as power management, network status, etc. 34 // such as power management, network status, etc.
35 // TODO(mbelshe): Add support beyond just power management. 35 // TODO(mbelshe): Add support beyond just power management.
36 class BASE_API SystemMonitor { 36 class BASE_EXPORT SystemMonitor {
37 public: 37 public:
38 // Normalized list of power events. 38 // Normalized list of power events.
39 enum PowerEvent { 39 enum PowerEvent {
40 POWER_STATE_EVENT, // The Power status of the system has changed. 40 POWER_STATE_EVENT, // The Power status of the system has changed.
41 SUSPEND_EVENT, // The system is being suspended. 41 SUSPEND_EVENT, // The system is being suspended.
42 RESUME_EVENT // The system is being resumed. 42 RESUME_EVENT // The system is being resumed.
43 }; 43 };
44 44
45 // Create SystemMonitor. Only one SystemMonitor instance per application 45 // Create SystemMonitor. Only one SystemMonitor instance per application
46 // is allowed. 46 // is allowed.
(...skipping 20 matching lines...) Expand all
67 bool BatteryPower() const { 67 bool BatteryPower() const {
68 // Using a lock here is not necessary for just a bool. 68 // Using a lock here is not necessary for just a bool.
69 return battery_in_use_; 69 return battery_in_use_;
70 } 70 }
71 71
72 // Callbacks will be called on the thread which creates the SystemMonitor. 72 // Callbacks will be called on the thread which creates the SystemMonitor.
73 // During the callback, Add/RemoveObserver will block until the callbacks 73 // During the callback, Add/RemoveObserver will block until the callbacks
74 // are finished. Observers should implement quick callback functions; if 74 // are finished. Observers should implement quick callback functions; if
75 // lengthy operations are needed, the observer should take care to invoke 75 // lengthy operations are needed, the observer should take care to invoke
76 // the operation on an appropriate thread. 76 // the operation on an appropriate thread.
77 class BASE_API PowerObserver { 77 class BASE_EXPORT PowerObserver {
78 public: 78 public:
79 // Notification of a change in power status of the computer, such 79 // Notification of a change in power status of the computer, such
80 // as from switching between battery and A/C power. 80 // as from switching between battery and A/C power.
81 virtual void OnPowerStateChange(bool on_battery_power) {} 81 virtual void OnPowerStateChange(bool on_battery_power) {}
82 82
83 // Notification that the system is suspending. 83 // Notification that the system is suspending.
84 virtual void OnSuspend() {} 84 virtual void OnSuspend() {}
85 85
86 // Notification that the system is resuming. 86 // Notification that the system is resuming.
87 virtual void OnResume() {} 87 virtual void OnResume() {}
(...skipping 49 matching lines...) Expand 10 before | Expand all | Expand 10 after
137 #if defined(ENABLE_BATTERY_MONITORING) 137 #if defined(ENABLE_BATTERY_MONITORING)
138 base::OneShotTimer<SystemMonitor> delayed_battery_check_; 138 base::OneShotTimer<SystemMonitor> delayed_battery_check_;
139 #endif 139 #endif
140 140
141 DISALLOW_COPY_AND_ASSIGN(SystemMonitor); 141 DISALLOW_COPY_AND_ASSIGN(SystemMonitor);
142 }; 142 };
143 143
144 } // namespace base 144 } // namespace base
145 145
146 #endif // BASE_SYSTEM_MONITOR_SYSTEM_MONITOR_H_ 146 #endif // BASE_SYSTEM_MONITOR_SYSTEM_MONITOR_H_
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