51 lines
1.6 KiB
C++
51 lines
1.6 KiB
C++
// Copyright 2021 The Dawn Authors
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include "dawn_platform/WorkerThread.h"
|
|
|
|
#include <future>
|
|
|
|
#include "common/Assert.h"
|
|
|
|
namespace {
|
|
|
|
class AsyncWaitableEvent final : public dawn_platform::WaitableEvent {
|
|
public:
|
|
explicit AsyncWaitableEvent(std::function<void()> func) {
|
|
mFuture = std::async(std::launch::async, func);
|
|
}
|
|
virtual ~AsyncWaitableEvent() override {
|
|
ASSERT(IsComplete());
|
|
}
|
|
void Wait() override {
|
|
ASSERT(mFuture.valid());
|
|
mFuture.wait();
|
|
}
|
|
bool IsComplete() override {
|
|
ASSERT(mFuture.valid());
|
|
return mFuture.wait_for(std::chrono::seconds(0)) == std::future_status::ready;
|
|
}
|
|
|
|
private:
|
|
std::future<void> mFuture;
|
|
};
|
|
|
|
} // anonymous namespace
|
|
|
|
std::unique_ptr<dawn_platform::WaitableEvent> AsyncWorkerThreadPool::PostWorkerTask(
|
|
dawn_platform::PostWorkerTaskCallback callback,
|
|
void* userdata) {
|
|
std::function<void()> doTask = [callback, userdata]() { callback(userdata); };
|
|
return std::make_unique<AsyncWaitableEvent>(doTask);
|
|
} |