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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #ifndef SkTaskGroup_DEFINED | 8 #ifndef SkTaskGroup_DEFINED |
9 #define SkTaskGroup_DEFINED | 9 #define SkTaskGroup_DEFINED |
10 | 10 |
11 #include "SkTypes.h" | 11 #include "SkTypes.h" |
12 #include "SkRunnable.h" | 12 |
| 13 struct SkRunnable; |
13 | 14 |
14 class SkTaskGroup : SkNoncopyable { | 15 class SkTaskGroup : SkNoncopyable { |
15 public: | 16 public: |
16 // Create one of these in main() to enable SkTaskGroups globally. | 17 // Create one of these in main() to enable SkTaskGroups globally. |
17 struct Enabler : SkNoncopyable { | 18 struct Enabler : SkNoncopyable { |
18 explicit Enabler(int threads = -1); // Default is system-reported core
count. | 19 explicit Enabler(int threads = -1); // Default is system-reported core
count. |
19 ~Enabler(); | 20 ~Enabler(); |
20 }; | 21 }; |
21 | 22 |
22 SkTaskGroup(); | 23 SkTaskGroup(); |
23 ~SkTaskGroup() { this->wait(); } | 24 ~SkTaskGroup() { this->wait(); } |
24 | 25 |
25 // Add a task to this SkTaskGroup. It will likely run on another thread. | 26 // Add a task to this SkTaskGroup. It will likely run on another thread. |
26 // Neither add() method takes owership of any of its parameters. | 27 // Neither add() method takes owership of any of its parameters. |
27 void add(SkRunnable*); | 28 void add(SkRunnable*); |
28 void add(void (*fn)(void*), void* arg); | 29 void add(void (*fn)(void*), void* arg); |
29 | 30 |
30 // Block until all Tasks previously add()ed to this SkTaskGroup have run. | 31 // Block until all Tasks previously add()ed to this SkTaskGroup have run. |
31 // You may safely reuse this SkTaskGroup after wait() returns. | 32 // You may safely reuse this SkTaskGroup after wait() returns. |
32 void wait(); | 33 void wait(); |
33 | 34 |
34 private: | 35 private: |
35 /*atomic*/ int32_t fPending; | 36 /*atomic*/ int32_t fPending; |
36 }; | 37 }; |
37 | 38 |
38 #endif//SkTaskGroup_DEFINED | 39 #endif//SkTaskGroup_DEFINED |
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