15821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Copyright (c) 2012 The Chromium Authors. All rights reserved. 25821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// Use of this source code is governed by a BSD-style license that can be 35821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// found in the LICENSE file. 45821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 55821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#ifndef CONTENT_GPU_GPU_WATCHDOG_THREAD_H_ 65821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#define CONTENT_GPU_GPU_WATCHDOG_THREAD_H_ 75821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 85821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/ref_counted.h" 95821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/memory/weak_ptr.h" 109ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include "base/message_loop/message_loop.h" 113240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch#include "base/power_monitor/power_observer.h" 125821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "base/threading/thread.h" 13eb525c5499e34cc9c4b825d6d9e75bb07cc06aceBen Murdoch#include "base/time/time.h" 145821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#include "content/common/gpu/gpu_watchdog.h" 155821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 165821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)namespace content { 175821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 185821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// A thread that intermitently sends tasks to a group of watched message loops 195821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)// and deliberately crashes if one of them does not respond after a timeout. 205821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)class GpuWatchdogThread : public base::Thread, 215821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public GpuWatchdog, 223240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch public base::PowerObserver, 235821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public base::RefCountedThreadSafe<GpuWatchdogThread> { 245821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 255821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit GpuWatchdogThread(int timeout); 265821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 275821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Accessible on watched thread but only modified by watchdog thread. 285821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) bool armed() const { return armed_; } 295821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void PostAcknowledge(); 305821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 315821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Implement GpuWatchdog. 325821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void CheckArmed() OVERRIDE; 335821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 343240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch // Must be called after a PowerMonitor has been created. Can be called from 353240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch // any thread. 363240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch void AddPowerObserver(); 373240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch 385821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) protected: 395821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void Init() OVERRIDE; 405821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual void CleanUp() OVERRIDE; 415821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 425821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 435821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) friend class base::RefCountedThreadSafe<GpuWatchdogThread>; 445821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 455821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // An object of this type intercepts the reception and completion of all tasks 465821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // on the watched thread and checks whether the watchdog is armed. 47c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) class GpuWatchdogTaskObserver : public base::MessageLoop::TaskObserver { 485821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) public: 495821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) explicit GpuWatchdogTaskObserver(GpuWatchdogThread* watchdog); 505821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~GpuWatchdogTaskObserver(); 515821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 525821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) // Implements MessageLoop::TaskObserver. 532a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void WillProcessTask( 542a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) const base::PendingTask& pending_task) OVERRIDE; 552a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) virtual void DidProcessTask(const base::PendingTask& pending_task) OVERRIDE; 565821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 575821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) private: 585821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GpuWatchdogThread* watchdog_; 595821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) }; 605821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 615821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) virtual ~GpuWatchdogThread(); 625821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 635821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void OnAcknowledge(); 642a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) void OnCheck(bool after_suspend); 655821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void DeliberatelyTerminateToRecoverFromHang(); 665821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 673240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch void OnAddPowerObserver(); 683240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch 693240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch // Implement PowerObserver. 703240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch virtual void OnSuspend() OVERRIDE; 713240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch virtual void OnResume() OVERRIDE; 723240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch 735821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 745821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta GetWatchedThreadTime(); 755821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 765821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 77c2e0dbddbe15c98d52c4786dac06cb8952a8ae6dTorne (Richard Coles) base::MessageLoop* watched_message_loop_; 785821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta timeout_; 795821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) volatile bool armed_; 805821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) GpuWatchdogTaskObserver task_observer_; 815821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 825821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#if defined(OS_WIN) 835821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) void* watched_thread_handle_; 845821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::TimeDelta arm_cpu_time_; 855821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif 865821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 872a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // Time after which it's assumed that the computer has been suspended since 882a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) // the task was posted. 892a99a7e74a7f215066514fe81d2bfa6639d9edddTorne (Richard Coles) base::Time suspension_timeout_; 905821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 915821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) base::WeakPtrFactory<GpuWatchdogThread> weak_factory_; 925821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 933240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch bool suspended_; 943240926e260ce088908e02ac07a6cf7b0c0cbf44Ben Murdoch 954e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)#if defined(OS_CHROMEOS) 964e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) FILE* tty_file_; 974e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles)#endif 984e180b6a0b4720a9b8e9e959a882386f690f08ffTorne (Richard Coles) 995821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) DISALLOW_COPY_AND_ASSIGN(GpuWatchdogThread); 1005821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)}; 1015821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1025821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)} // namespace content 1035821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles) 1045821806d5e7f356e8fa4b058a389a808ea183019Torne (Richard Coles)#endif // CONTENT_GPU_GPU_WATCHDOG_THREAD_H_ 105