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1 // Copyright (c) 2006-2008 The Chromium Authors. All rights reserved. | 1 // Copyright (c) 2006-2008 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 // ConditionVariable wraps pthreads condition variable synchronization or, on | 5 // ConditionVariable wraps pthreads condition variable synchronization or, on |
6 // Windows, simulates it. This functionality is very helpful for having | 6 // Windows, simulates it. This functionality is very helpful for having |
7 // several threads wait for an event, as is common with a thread pool managed | 7 // several threads wait for an event, as is common with a thread pool managed |
8 // by a master. The meaning of such an event in the (worker) thread pool | 8 // by a master. The meaning of such an event in the (worker) thread pool |
9 // scenario is that additional tasks are now available for processing. It is | 9 // scenario is that additional tasks are now available for processing. It is |
10 // used in Chrome in the DNS prefetching system to notify worker threads that | 10 // used in Chrome in the DNS prefetching system to notify worker threads that |
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164 | 164 |
165 pthread_cond_t condition_; | 165 pthread_cond_t condition_; |
166 pthread_mutex_t* user_mutex_; | 166 pthread_mutex_t* user_mutex_; |
167 | 167 |
168 #endif | 168 #endif |
169 | 169 |
170 DISALLOW_COPY_AND_ASSIGN(ConditionVariable); | 170 DISALLOW_COPY_AND_ASSIGN(ConditionVariable); |
171 }; | 171 }; |
172 | 172 |
173 #endif // BASE_CONDITION_VARIABLE_H_ | 173 #endif // BASE_CONDITION_VARIABLE_H_ |
174 | |
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