| /* |
| * Copyright 2017 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef SkExecutor_DEFINED |
| #define SkExecutor_DEFINED |
| |
| #include <functional> |
| #include <memory> |
| #include "include/core/SkTypes.h" |
| |
| class SK_API SkExecutor { |
| public: |
| virtual ~SkExecutor(); |
| |
| // Create a thread pool SkExecutor with a fixed thread count, by default the number of cores. |
| static std::unique_ptr<SkExecutor> MakeFIFOThreadPool(int threads = 0, |
| bool allowBorrowing = true); |
| static std::unique_ptr<SkExecutor> MakeLIFOThreadPool(int threads = 0, |
| bool allowBorrowing = true); |
| |
| // There is always a default SkExecutor available by calling SkExecutor::GetDefault(). |
| static SkExecutor& GetDefault(); |
| static void SetDefault(SkExecutor*); // Does not take ownership. Not thread safe. |
| |
| // Add work to execute. |
| virtual void add(std::function<void(void)>) = 0; |
| |
| // If it makes sense for this executor, use this thread to execute work for a little while. |
| virtual void borrow() {} |
| |
| protected: |
| SkExecutor() = default; |
| SkExecutor(const SkExecutor&) = delete; |
| SkExecutor& operator=(const SkExecutor&) = delete; |
| }; |
| |
| #endif//SkExecutor_DEFINED |