mtklein | 406654b | 2014-09-03 15:34:37 -0700 | [diff] [blame^] | 1 | /* |
| 2 | * Copyright 2014 Google Inc. |
| 3 | * |
| 4 | * Use of this source code is governed by a BSD-style license that can be |
| 5 | * found in the LICENSE file. |
| 6 | */ |
| 7 | |
| 8 | #ifndef SkTaskGroup_DEFINED |
| 9 | #define SkTaskGroup_DEFINED |
| 10 | |
| 11 | #include "SkTypes.h" |
| 12 | #include "SkRunnable.h" |
| 13 | |
| 14 | class SkTaskGroup : SkNoncopyable { |
| 15 | public: |
| 16 | // Create one of these in main() to enable SkTaskGroups globally. |
| 17 | struct Enabler : SkNoncopyable { |
| 18 | explicit Enabler(int threads = 0); // Default is system-reported core count. |
| 19 | ~Enabler(); |
| 20 | }; |
| 21 | |
| 22 | SkTaskGroup(); |
| 23 | ~SkTaskGroup() { this->wait(); } |
| 24 | |
| 25 | // Add a task to this SkTaskGroup. It will likely run() on another thread. |
| 26 | void add(SkRunnable*); |
| 27 | |
| 28 | // Block until all Tasks previously add()ed to this SkTaskGroup have run(). |
| 29 | // You may safely reuse this SkTaskGroup after wait() returns. |
| 30 | void wait(); |
| 31 | |
| 32 | private: |
| 33 | /*atomic*/ int32_t fPending; |
| 34 | }; |
| 35 | |
| 36 | #endif//SkTaskGroup_DEFINED |