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