Flutter Impeller
fence_waiter_vk.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_FENCE_WAITER_VK_H_
6 #define FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_FENCE_WAITER_VK_H_
7 
8 #include <condition_variable>
9 #include <memory>
10 #include <thread>
11 #include <vector>
12 
13 #include "flutter/fml/closure.h"
15 
16 namespace impeller {
17 
18 class ContextVK;
19 class WaitSetEntry;
20 
21 using WaitSet = std::vector<std::shared_ptr<WaitSetEntry>>;
22 
24  public:
26 
27  bool IsValid() const;
28 
29  void Terminate();
30 
31  bool AddFence(vk::UniqueFence fence, const fml::closure& callback);
32 
33  private:
34  friend class ContextVK;
35 
36  std::weak_ptr<DeviceHolderVK> device_holder_;
37  std::unique_ptr<std::thread> waiter_thread_;
38  std::mutex wait_set_mutex_;
39  std::condition_variable wait_set_cv_;
40  WaitSet wait_set_;
41  bool terminate_ = false;
42 
43  explicit FenceWaiterVK(std::weak_ptr<DeviceHolderVK> device_holder);
44 
45  void Main();
46 
47  bool Wait();
48  void WaitUntilEmpty();
49 
50  FenceWaiterVK(const FenceWaiterVK&) = delete;
51 
52  FenceWaiterVK& operator=(const FenceWaiterVK&) = delete;
53 };
54 
55 } // namespace impeller
56 
57 #endif // FLUTTER_IMPELLER_RENDERER_BACKEND_VULKAN_FENCE_WAITER_VK_H_
bool AddFence(vk::UniqueFence fence, const fml::closure &callback)
bool Main(const fml::CommandLine &command_line)
std::vector< std::shared_ptr< WaitSetEntry > > WaitSet