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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 = -1); // 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 // Neither add() method takes owership of any of its parameters. | |
27 void add(SkRunnable*); | |
28 void add(void (*fn)(void*), void* arg); | |
29 | |
30 // Block until all Tasks previously add()ed to this SkTaskGroup have run. | |
31 // You may safely reuse this SkTaskGroup after wait() returns. | |
32 void wait(); | |
33 | |
34 private: | |
35 /*atomic*/ int32_t fPending; | |
36 }; | |
37 | |
38 #endif//SkTaskGroup_DEFINED | |
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