1 | /* |
2 | * Copyright 2017 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 SkExecutor_DEFINED |
9 | #define SkExecutor_DEFINED |
10 | |
11 | #include <functional> |
12 | #include <memory> |
13 | #include "include/core/SkTypes.h" |
14 | |
15 | class SK_API SkExecutor { |
16 | public: |
17 | virtual ~SkExecutor(); |
18 | |
19 | // Create a thread pool SkExecutor with a fixed thread count, by default the number of cores. |
20 | static std::unique_ptr<SkExecutor> MakeFIFOThreadPool(int threads = 0); |
21 | static std::unique_ptr<SkExecutor> MakeLIFOThreadPool(int threads = 0); |
22 | |
23 | // There is always a default SkExecutor available by calling SkExecutor::GetDefault(). |
24 | static SkExecutor& GetDefault(); |
25 | static void SetDefault(SkExecutor*); // Does not take ownership. Not thread safe. |
26 | |
27 | // Add work to execute. |
28 | virtual void add(std::function<void(void)>) = 0; |
29 | |
30 | // If it makes sense for this executor, use this thread to execute work for a little while. |
31 | virtual void borrow() {} |
32 | }; |
33 | |
34 | #endif//SkExecutor_DEFINED |
35 | |