| OLD | NEW |
| 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 // WARNING: You should probably be using Thread (thread.h) instead. Thread is | 5 // WARNING: You should probably be using Thread (thread.h) instead. Thread is |
| 6 // Chrome's message-loop based Thread abstraction, and if you are a | 6 // Chrome's message-loop based Thread abstraction, and if you are a |
| 7 // thread running in the browser, there will likely be assumptions | 7 // thread running in the browser, there will likely be assumptions |
| 8 // that your thread will have an associated message loop. | 8 // that your thread will have an associated message loop. |
| 9 // | 9 // |
| 10 // This is a simple thread interface that backs to a native operating system | 10 // This is a simple thread interface that backs to a native operating system |
| (...skipping 84 matching lines...) Expand 10 before | Expand all | Expand 10 after Loading... |
| 95 // Return the thread id, only valid after Start(). | 95 // Return the thread id, only valid after Start(). |
| 96 PlatformThreadId tid() { return tid_; } | 96 PlatformThreadId tid() { return tid_; } |
| 97 | 97 |
| 98 // Return True if Start() has ever been called. | 98 // Return True if Start() has ever been called. |
| 99 bool HasBeenStarted(); | 99 bool HasBeenStarted(); |
| 100 | 100 |
| 101 // Return True if Join() has evern been called. | 101 // Return True if Join() has evern been called. |
| 102 bool HasBeenJoined() { return joined_; } | 102 bool HasBeenJoined() { return joined_; } |
| 103 | 103 |
| 104 // Overridden from PlatformThread::Delegate: | 104 // Overridden from PlatformThread::Delegate: |
| 105 virtual void ThreadMain() OVERRIDE; | 105 virtual void ThreadMain() override; |
| 106 | 106 |
| 107 // Only set priorities with a careful understanding of the consequences. | 107 // Only set priorities with a careful understanding of the consequences. |
| 108 // This is meant for very limited use cases. | 108 // This is meant for very limited use cases. |
| 109 void SetThreadPriority(ThreadPriority priority) { | 109 void SetThreadPriority(ThreadPriority priority) { |
| 110 PlatformThread::SetThreadPriority(thread_, priority); | 110 PlatformThread::SetThreadPriority(thread_, priority); |
| 111 } | 111 } |
| 112 | 112 |
| 113 private: | 113 private: |
| 114 const std::string name_prefix_; | 114 const std::string name_prefix_; |
| 115 std::string name_; | 115 std::string name_; |
| (...skipping 13 matching lines...) Expand all Loading... |
| 129 virtual void Run() = 0; | 129 virtual void Run() = 0; |
| 130 }; | 130 }; |
| 131 | 131 |
| 132 DelegateSimpleThread(Delegate* delegate, | 132 DelegateSimpleThread(Delegate* delegate, |
| 133 const std::string& name_prefix); | 133 const std::string& name_prefix); |
| 134 DelegateSimpleThread(Delegate* delegate, | 134 DelegateSimpleThread(Delegate* delegate, |
| 135 const std::string& name_prefix, | 135 const std::string& name_prefix, |
| 136 const Options& options); | 136 const Options& options); |
| 137 | 137 |
| 138 virtual ~DelegateSimpleThread(); | 138 virtual ~DelegateSimpleThread(); |
| 139 virtual void Run() OVERRIDE; | 139 virtual void Run() override; |
| 140 private: | 140 private: |
| 141 Delegate* delegate_; | 141 Delegate* delegate_; |
| 142 }; | 142 }; |
| 143 | 143 |
| 144 // DelegateSimpleThreadPool allows you to start up a fixed number of threads, | 144 // DelegateSimpleThreadPool allows you to start up a fixed number of threads, |
| 145 // and then add jobs which will be dispatched to the threads. This is | 145 // and then add jobs which will be dispatched to the threads. This is |
| 146 // convenient when you have a lot of small work that you want done | 146 // convenient when you have a lot of small work that you want done |
| 147 // multi-threaded, but don't want to spawn a thread for each small bit of work. | 147 // multi-threaded, but don't want to spawn a thread for each small bit of work. |
| 148 // | 148 // |
| 149 // You just call AddWork() to add a delegate to the list of work to be done. | 149 // You just call AddWork() to add a delegate to the list of work to be done. |
| (...skipping 17 matching lines...) Expand all Loading... |
| 167 void JoinAll(); | 167 void JoinAll(); |
| 168 | 168 |
| 169 // It is safe to AddWork() any time, before or after Start(). | 169 // It is safe to AddWork() any time, before or after Start(). |
| 170 // Delegate* should always be a valid pointer, NULL is reserved internally. | 170 // Delegate* should always be a valid pointer, NULL is reserved internally. |
| 171 void AddWork(Delegate* work, int repeat_count); | 171 void AddWork(Delegate* work, int repeat_count); |
| 172 void AddWork(Delegate* work) { | 172 void AddWork(Delegate* work) { |
| 173 AddWork(work, 1); | 173 AddWork(work, 1); |
| 174 } | 174 } |
| 175 | 175 |
| 176 // We implement the Delegate interface, for running our internal threads. | 176 // We implement the Delegate interface, for running our internal threads. |
| 177 virtual void Run() OVERRIDE; | 177 virtual void Run() override; |
| 178 | 178 |
| 179 private: | 179 private: |
| 180 const std::string name_prefix_; | 180 const std::string name_prefix_; |
| 181 int num_threads_; | 181 int num_threads_; |
| 182 std::vector<DelegateSimpleThread*> threads_; | 182 std::vector<DelegateSimpleThread*> threads_; |
| 183 std::queue<Delegate*> delegates_; | 183 std::queue<Delegate*> delegates_; |
| 184 base::Lock lock_; // Locks delegates_ | 184 base::Lock lock_; // Locks delegates_ |
| 185 WaitableEvent dry_; // Not signaled when there is no work to do. | 185 WaitableEvent dry_; // Not signaled when there is no work to do. |
| 186 }; | 186 }; |
| 187 | 187 |
| 188 } // namespace base | 188 } // namespace base |
| 189 | 189 |
| 190 #endif // BASE_THREADING_SIMPLE_THREAD_H_ | 190 #endif // BASE_THREADING_SIMPLE_THREAD_H_ |
| OLD | NEW |