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comparison: dom/power/PowerManagerService.cpp
dom/power/PowerManagerService.cpp
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- TOR_BUG_3246
- changeset 7
- 129ffea94266
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| -1:000000000000 | 0:8549a41dc7de |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "mozilla/dom/ContentParent.h" | |
| 7 #include "mozilla/Hal.h" | |
| 8 #include "mozilla/HalWakeLock.h" | |
| 9 #include "mozilla/ClearOnShutdown.h" | |
| 10 #include "mozilla/Preferences.h" | |
| 11 #include "mozilla/Services.h" | |
| 12 #include "nsIDOMWakeLockListener.h" | |
| 13 #include "nsIDOMWindow.h" | |
| 14 #include "nsIObserverService.h" | |
| 15 #include "PowerManagerService.h" | |
| 16 #include "WakeLock.h" | |
| 17 | |
| 18 // For _exit(). | |
| 19 #ifdef XP_WIN | |
| 20 #include <process.h> | |
| 21 #else | |
| 22 #include <unistd.h> | |
| 23 #endif | |
| 24 | |
| 25 #ifdef ANDROID | |
| 26 #include <android/log.h> | |
| 27 extern "C" char* PrintJSStack(); | |
| 28 static void LogFunctionAndJSStack(const char* funcname) { | |
| 29 char *jsstack = PrintJSStack(); | |
| 30 __android_log_print(ANDROID_LOG_INFO, "PowerManagerService", \ | |
| 31 "Call to %s. The JS stack is:\n%s\n", | |
| 32 funcname, | |
| 33 jsstack ? jsstack : "<no JS stack>"); | |
| 34 } | |
| 35 // bug 839452 | |
| 36 #define LOG_FUNCTION_AND_JS_STACK() \ | |
| 37 LogFunctionAndJSStack(__PRETTY_FUNCTION__); | |
| 38 #else | |
| 39 #define LOG_FUNCTION_AND_JS_STACK() | |
| 40 #endif | |
| 41 | |
| 42 namespace mozilla { | |
| 43 namespace dom { | |
| 44 namespace power { | |
| 45 | |
| 46 using namespace hal; | |
| 47 | |
| 48 NS_IMPL_ISUPPORTS(PowerManagerService, nsIPowerManagerService) | |
| 49 | |
| 50 /* static */ StaticRefPtr<PowerManagerService> PowerManagerService::sSingleton; | |
| 51 | |
| 52 /* static */ already_AddRefed<PowerManagerService> | |
| 53 PowerManagerService::GetInstance() | |
| 54 { | |
| 55 if (!sSingleton) { | |
| 56 sSingleton = new PowerManagerService(); | |
| 57 sSingleton->Init(); | |
| 58 ClearOnShutdown(&sSingleton); | |
| 59 } | |
| 60 | |
| 61 nsRefPtr<PowerManagerService> service = sSingleton.get(); | |
| 62 return service.forget(); | |
| 63 } | |
| 64 | |
| 65 void | |
| 66 PowerManagerService::Init() | |
| 67 { | |
| 68 RegisterWakeLockObserver(this); | |
| 69 | |
| 70 // NB: default to *enabling* the watchdog even when the pref is | |
| 71 // absent, in case the profile might be damaged and we need to | |
| 72 // restart to repair it. | |
| 73 mWatchdogTimeoutSecs = | |
| 74 Preferences::GetInt("shutdown.watchdog.timeoutSecs", 5); | |
| 75 } | |
| 76 | |
| 77 PowerManagerService::~PowerManagerService() | |
| 78 { | |
| 79 UnregisterWakeLockObserver(this); | |
| 80 } | |
| 81 | |
| 82 void | |
| 83 PowerManagerService::ComputeWakeLockState(const WakeLockInformation& aWakeLockInfo, | |
| 84 nsAString &aState) | |
| 85 { | |
| 86 WakeLockState state = hal::ComputeWakeLockState(aWakeLockInfo.numLocks(), | |
| 87 aWakeLockInfo.numHidden()); | |
| 88 switch (state) { | |
| 89 case WAKE_LOCK_STATE_UNLOCKED: | |
| 90 aState.AssignLiteral("unlocked"); | |
| 91 break; | |
| 92 case WAKE_LOCK_STATE_HIDDEN: | |
| 93 aState.AssignLiteral("locked-background"); | |
| 94 break; | |
| 95 case WAKE_LOCK_STATE_VISIBLE: | |
| 96 aState.AssignLiteral("locked-foreground"); | |
| 97 break; | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 void | |
| 102 PowerManagerService::Notify(const WakeLockInformation& aWakeLockInfo) | |
| 103 { | |
| 104 nsAutoString state; | |
| 105 ComputeWakeLockState(aWakeLockInfo, state); | |
| 106 | |
| 107 /** | |
| 108 * Copy the listeners list before we walk through the callbacks | |
| 109 * because the callbacks may install new listeners. We expect no | |
| 110 * more than one listener per window, so it shouldn't be too long. | |
| 111 */ | |
| 112 nsAutoTArray<nsCOMPtr<nsIDOMMozWakeLockListener>, 2> listeners(mWakeLockListeners); | |
| 113 | |
| 114 for (uint32_t i = 0; i < listeners.Length(); ++i) { | |
| 115 listeners[i]->Callback(aWakeLockInfo.topic(), state); | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 void | |
| 120 PowerManagerService::SyncProfile() | |
| 121 { | |
| 122 nsCOMPtr<nsIObserverService> obsServ = services::GetObserverService(); | |
| 123 if (obsServ) { | |
| 124 NS_NAMED_LITERAL_STRING(context, "shutdown-persist"); | |
| 125 obsServ->NotifyObservers(nullptr, "profile-change-net-teardown", context.get()); | |
| 126 obsServ->NotifyObservers(nullptr, "profile-change-teardown", context.get()); | |
| 127 obsServ->NotifyObservers(nullptr, "profile-before-change", context.get()); | |
| 128 obsServ->NotifyObservers(nullptr, "profile-before-change2", context.get()); | |
| 129 } | |
| 130 } | |
| 131 | |
| 132 NS_IMETHODIMP | |
| 133 PowerManagerService::Reboot() | |
| 134 { | |
| 135 LOG_FUNCTION_AND_JS_STACK() // bug 839452 | |
| 136 | |
| 137 StartForceQuitWatchdog(eHalShutdownMode_Reboot, mWatchdogTimeoutSecs); | |
| 138 // To synchronize any unsaved user data before rebooting. | |
| 139 SyncProfile(); | |
| 140 hal::Reboot(); | |
| 141 MOZ_CRASH("hal::Reboot() shouldn't return"); | |
| 142 } | |
| 143 | |
| 144 NS_IMETHODIMP | |
| 145 PowerManagerService::PowerOff() | |
| 146 { | |
| 147 LOG_FUNCTION_AND_JS_STACK() // bug 839452 | |
| 148 | |
| 149 StartForceQuitWatchdog(eHalShutdownMode_PowerOff, mWatchdogTimeoutSecs); | |
| 150 // To synchronize any unsaved user data before powering off. | |
| 151 SyncProfile(); | |
| 152 hal::PowerOff(); | |
| 153 MOZ_CRASH("hal::PowerOff() shouldn't return"); | |
| 154 } | |
| 155 | |
| 156 NS_IMETHODIMP | |
| 157 PowerManagerService::Restart() | |
| 158 { | |
| 159 LOG_FUNCTION_AND_JS_STACK() // bug 839452 | |
| 160 | |
| 161 // FIXME/bug 796826 this implementation is currently gonk-specific, | |
| 162 // because it relies on the Gonk to initialize the Gecko processes to | |
| 163 // restart B2G. It's better to do it here to have a real "restart". | |
| 164 StartForceQuitWatchdog(eHalShutdownMode_Restart, mWatchdogTimeoutSecs); | |
| 165 // Ensure all content processes are dead before we continue | |
| 166 // restarting. This code is used to restart to apply updates, and | |
| 167 // if we don't join all the subprocesses, race conditions can cause | |
| 168 // them to see an inconsistent view of the application directory. | |
| 169 ContentParent::JoinAllSubprocesses(); | |
| 170 | |
| 171 // To synchronize any unsaved user data before restarting. | |
| 172 SyncProfile(); | |
| 173 #ifdef XP_UNIX | |
| 174 sync(); | |
| 175 #endif | |
| 176 _exit(0); | |
| 177 MOZ_CRASH("_exit() shouldn't return"); | |
| 178 } | |
| 179 | |
| 180 NS_IMETHODIMP | |
| 181 PowerManagerService::AddWakeLockListener(nsIDOMMozWakeLockListener *aListener) | |
| 182 { | |
| 183 if (mWakeLockListeners.Contains(aListener)) | |
| 184 return NS_OK; | |
| 185 | |
| 186 mWakeLockListeners.AppendElement(aListener); | |
| 187 return NS_OK; | |
| 188 } | |
| 189 | |
| 190 NS_IMETHODIMP | |
| 191 PowerManagerService::RemoveWakeLockListener(nsIDOMMozWakeLockListener *aListener) | |
| 192 { | |
| 193 mWakeLockListeners.RemoveElement(aListener); | |
| 194 return NS_OK; | |
| 195 } | |
| 196 | |
| 197 NS_IMETHODIMP | |
| 198 PowerManagerService::GetWakeLockState(const nsAString &aTopic, nsAString &aState) | |
| 199 { | |
| 200 WakeLockInformation info; | |
| 201 GetWakeLockInfo(aTopic, &info); | |
| 202 | |
| 203 ComputeWakeLockState(info, aState); | |
| 204 | |
| 205 return NS_OK; | |
| 206 } | |
| 207 | |
| 208 already_AddRefed<WakeLock> | |
| 209 PowerManagerService::NewWakeLock(const nsAString& aTopic, | |
| 210 nsIDOMWindow* aWindow, | |
| 211 mozilla::ErrorResult& aRv) | |
| 212 { | |
| 213 nsRefPtr<WakeLock> wakelock = new WakeLock(); | |
| 214 aRv = wakelock->Init(aTopic, aWindow); | |
| 215 if (aRv.Failed()) { | |
| 216 return nullptr; | |
| 217 } | |
| 218 | |
| 219 return wakelock.forget(); | |
| 220 } | |
| 221 | |
| 222 NS_IMETHODIMP | |
| 223 PowerManagerService::NewWakeLock(const nsAString &aTopic, | |
| 224 nsIDOMWindow *aWindow, | |
| 225 nsISupports **aWakeLock) | |
| 226 { | |
| 227 mozilla::ErrorResult rv; | |
| 228 nsRefPtr<WakeLock> wakelock = NewWakeLock(aTopic, aWindow, rv); | |
| 229 if (rv.Failed()) { | |
| 230 return rv.ErrorCode(); | |
| 231 } | |
| 232 | |
| 233 nsCOMPtr<nsIDOMEventListener> eventListener = wakelock.get(); | |
| 234 eventListener.forget(aWakeLock); | |
| 235 return NS_OK; | |
| 236 } | |
| 237 | |
| 238 already_AddRefed<WakeLock> | |
| 239 PowerManagerService::NewWakeLockOnBehalfOfProcess(const nsAString& aTopic, | |
| 240 ContentParent* aContentParent) | |
| 241 { | |
| 242 nsRefPtr<WakeLock> wakelock = new WakeLock(); | |
| 243 nsresult rv = wakelock->Init(aTopic, aContentParent); | |
| 244 NS_ENSURE_SUCCESS(rv, nullptr); | |
| 245 return wakelock.forget(); | |
| 246 } | |
| 247 | |
| 248 } // power | |
| 249 } // dom | |
| 250 } // mozilla |
