mirror of
https://github.com/kidfromjupiter/nearby.git
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81 lines
2.4 KiB
C++
81 lines
2.4 KiB
C++
// Copyright 2020 Google LLC
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// https://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "platform/impl/windows/executor.h"
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#include "platform/impl/windows/generated/winrt/Windows.System.Threading.Core.h"
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#include "platform/impl/windows/generated/winrt/Windows.System.Threading.h"
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#include "platform/impl/windows/runner.h"
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#include "platform/impl/windows/thread_pool.h"
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#include "platform/public/logging.h"
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namespace location {
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namespace nearby {
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namespace windows {
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Executor::Executor() : Executor(1) {
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// Call thread pool creator
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}
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Executor::Executor(int32_t max_concurrency)
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: thread_pool_(std::make_unique<ThreadPool>(max_concurrency, false)),
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executor_state_(ExecutorState::NotReady),
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max_concurrency_(max_concurrency) {
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if (max_concurrency_ < 1) {
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throw(std::invalid_argument("max_concurrency"));
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}
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InitializeThreadPool();
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}
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bool Executor::InitializeThreadPool() {
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if (executor_state_ != ExecutorState::NotReady) {
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// To create a new pool, destroy the existing one first
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return false;
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}
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thread_pool_->SetPoolSize(max_concurrency_);
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thread_pool_->Create();
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executor_state_ = ExecutorState::Ready;
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return true;
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}
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// https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Executor.html#execute-java.lang.Runnable-
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void Executor::Execute(Runnable&& runnable) {
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if (shut_down_) {
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NEARBY_LOGS(ERROR) << "Error: " << __func__
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<< "Attempt to execute on a shut down pool.";
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return;
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}
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if (runnable == nullptr) {
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NEARBY_LOGS(ERROR) << "Error: " << __func__ << "Runnable was null.";
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return;
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}
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std::unique_ptr<Runner> runner = std::make_unique<Runner>(runnable);
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thread_pool_->Run(std::move(runner));
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}
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// https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ExecutorService.html#shutdown--
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void Executor::Shutdown() {
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shut_down_ = true;
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thread_pool_ = nullptr;
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}
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} // namespace windows
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} // namespace nearby
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} // namespace location
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