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1 // Copyright (c) 2012 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2012 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 #if defined(OS_WIN) | 5 #if defined(OS_WIN) |
6 #include <windows.h> | 6 #include <windows.h> |
7 #endif | 7 #endif |
8 | 8 |
9 #include "content/gpu/gpu_watchdog_thread.h" | 9 #include "content/gpu/gpu_watchdog_thread.h" |
10 | 10 |
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135 | 135 |
136 #if defined(USE_X11) | 136 #if defined(USE_X11) |
137 XDestroyWindow(display_, window_); | 137 XDestroyWindow(display_, window_); |
138 XCloseDisplay(display_); | 138 XCloseDisplay(display_); |
139 #endif | 139 #endif |
140 | 140 |
141 watched_message_loop_->RemoveTaskObserver(&task_observer_); | 141 watched_message_loop_->RemoveTaskObserver(&task_observer_); |
142 } | 142 } |
143 | 143 |
144 void GpuWatchdogThread::OnAcknowledge() { | 144 void GpuWatchdogThread::OnAcknowledge() { |
145 CHECK(base::PlatformThread::CurrentId() == thread_id()); | 145 CHECK(base::PlatformThread::CurrentId() == GetThreadId()); |
146 | 146 |
147 // The check has already been acknowledged and another has already been | 147 // The check has already been acknowledged and another has already been |
148 // scheduled by a previous call to OnAcknowledge. It is normal for a | 148 // scheduled by a previous call to OnAcknowledge. It is normal for a |
149 // watched thread to see armed_ being true multiple times before | 149 // watched thread to see armed_ being true multiple times before |
150 // the OnAcknowledge task is run on the watchdog thread. | 150 // the OnAcknowledge task is run on the watchdog thread. |
151 if (!armed_) | 151 if (!armed_) |
152 return; | 152 return; |
153 | 153 |
154 // Revoke any pending hang termination. | 154 // Revoke any pending hang termination. |
155 weak_factory_.InvalidateWeakPtrs(); | 155 weak_factory_.InvalidateWeakPtrs(); |
156 armed_ = false; | 156 armed_ = false; |
157 | 157 |
158 if (suspended_) | 158 if (suspended_) |
159 return; | 159 return; |
160 | 160 |
161 // If it took a long time for the acknowledgement, assume the computer was | 161 // If it took a long time for the acknowledgement, assume the computer was |
162 // recently suspended. | 162 // recently suspended. |
163 bool was_suspended = (base::Time::Now() > suspension_timeout_); | 163 bool was_suspended = (base::Time::Now() > suspension_timeout_); |
164 | 164 |
165 // The monitored thread has responded. Post a task to check it again. | 165 // The monitored thread has responded. Post a task to check it again. |
166 task_runner()->PostDelayedTask( | 166 task_runner()->PostDelayedTask( |
167 FROM_HERE, base::Bind(&GpuWatchdogThread::OnCheck, | 167 FROM_HERE, base::Bind(&GpuWatchdogThread::OnCheck, |
168 weak_factory_.GetWeakPtr(), was_suspended), | 168 weak_factory_.GetWeakPtr(), was_suspended), |
169 0.5 * timeout_); | 169 0.5 * timeout_); |
170 } | 170 } |
171 | 171 |
172 void GpuWatchdogThread::OnCheck(bool after_suspend) { | 172 void GpuWatchdogThread::OnCheck(bool after_suspend) { |
173 CHECK(base::PlatformThread::CurrentId() == thread_id()); | 173 CHECK(base::PlatformThread::CurrentId() == GetThreadId()); |
174 | 174 |
175 // Do not create any new termination tasks if one has already been created | 175 // Do not create any new termination tasks if one has already been created |
176 // or the system is suspended. | 176 // or the system is suspended. |
177 if (armed_ || suspended_) | 177 if (armed_ || suspended_) |
178 return; | 178 return; |
179 | 179 |
180 // Must set armed before posting the task. This task might be the only task | 180 // Must set armed before posting the task. This task might be the only task |
181 // that will activate the TaskObserver on the watched thread and it must not | 181 // that will activate the TaskObserver on the watched thread and it must not |
182 // miss the false -> true transition. | 182 // miss the false -> true transition. |
183 armed_ = true; | 183 armed_ = true; |
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393 // not increasing. The other is where either the kernel hangs and never | 393 // not increasing. The other is where either the kernel hangs and never |
394 // returns to user level or where user level code | 394 // returns to user level or where user level code |
395 // calls into kernel level repeatedly, giving up its quanta before it is | 395 // calls into kernel level repeatedly, giving up its quanta before it is |
396 // tracked, for example a loop that repeatedly Sleeps. | 396 // tracked, for example a loop that repeatedly Sleeps. |
397 return base::TimeDelta::FromMilliseconds(static_cast<int64>( | 397 return base::TimeDelta::FromMilliseconds(static_cast<int64>( |
398 (user_time64.QuadPart + kernel_time64.QuadPart) / 10000)); | 398 (user_time64.QuadPart + kernel_time64.QuadPart) / 10000)); |
399 } | 399 } |
400 #endif | 400 #endif |
401 | 401 |
402 } // namespace content | 402 } // namespace content |
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