blob: bc126f9311fd6beaf595b1df156f18ffaeeb5c8d [file] [log] [blame]
// Copyright 2020 Google LLC
//
// 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
//
// https://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 "platform/impl/windows/executor.h"
#include "platform/impl/windows/generated/winrt/Windows.System.Threading.Core.h"
#include "platform/impl/windows/generated/winrt/Windows.System.Threading.h"
#include "platform/impl/windows/runner.h"
#include "platform/impl/windows/thread_pool.h"
#include "platform/public/logging.h"
namespace location {
namespace nearby {
namespace windows {
Executor::Executor() : Executor(1) {
// Call thread pool creator
}
Executor::Executor(int32_t max_concurrency)
: thread_pool_(std::make_unique<ThreadPool>(max_concurrency, false)),
executor_state_(ExecutorState::NotReady),
max_concurrency_(max_concurrency) {
if (max_concurrency_ < 1) {
throw(std::invalid_argument("max_concurrency"));
}
InitializeThreadPool();
}
bool Executor::InitializeThreadPool() {
if (executor_state_ != ExecutorState::NotReady) {
// To create a new pool, destroy the existing one first
return false;
}
thread_pool_->SetPoolSize(max_concurrency_);
thread_pool_->Create();
executor_state_ = ExecutorState::Ready;
return true;
}
// https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/Executor.html#execute-java.lang.Runnable-
void Executor::Execute(Runnable&& runnable) {
if (shut_down_) {
NEARBY_LOGS(VERBOSE) << "Warning: " << __func__
<< ": Attempt to execute on a shut down pool.";
return;
}
if (runnable == nullptr) {
NEARBY_LOGS(VERBOSE) << "Error: " << __func__ << "Runnable was null.";
return;
}
std::unique_ptr<Runner> runner = std::make_unique<Runner>(runnable);
thread_pool_->Run(std::move(runner));
}
// https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ExecutorService.html#shutdown--
void Executor::Shutdown() {
shut_down_ = true;
thread_pool_ = nullptr;
}
} // namespace windows
} // namespace nearby
} // namespace location