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// Copyright (c) 2019 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "platform/impl/platform_client_posix.h"
#include <functional>
#include <utility>
#include <vector>
#include "platform/impl/udp_socket_reader_posix.h"
namespace openscreen {
// static
PlatformClientPosix* PlatformClientPosix::instance_ = nullptr;
// static
void PlatformClientPosix::Create(Clock::duration networking_operation_timeout,
std::unique_ptr<TaskRunnerImpl> task_runner) {
SetInstance(new PlatformClientPosix(networking_operation_timeout,
std::move(task_runner)));
}
// static
void PlatformClientPosix::Create(Clock::duration networking_operation_timeout) {
SetInstance(new PlatformClientPosix(networking_operation_timeout));
}
// static
void PlatformClientPosix::ShutDown() {
OSP_DCHECK(instance_);
delete instance_;
instance_ = nullptr;
}
TlsDataRouterPosix* PlatformClientPosix::tls_data_router() {
std::call_once(tls_data_router_initialization_, [this]() {
tls_data_router_ =
std::make_unique<TlsDataRouterPosix>(socket_handle_waiter());
tls_data_router_created_.store(true);
});
return tls_data_router_.get();
}
UdpSocketReaderPosix* PlatformClientPosix::udp_socket_reader() {
std::call_once(udp_socket_reader_initialization_, [this]() {
udp_socket_reader_ =
std::make_unique<UdpSocketReaderPosix>(socket_handle_waiter());
});
return udp_socket_reader_.get();
}
TaskRunner* PlatformClientPosix::GetTaskRunner() {
return task_runner_.get();
}
PlatformClientPosix::~PlatformClientPosix() {
OSP_DVLOG << "Shutting down the Task Runner...";
task_runner_->RequestStopSoon();
if (task_runner_thread_ && task_runner_thread_->joinable()) {
task_runner_thread_->join();
OSP_DVLOG << "\tTask Runner shutdown complete!";
}
OSP_DVLOG << "Shutting down network operations...";
networking_loop_running_.store(false);
networking_loop_thread_.join();
OSP_DVLOG << "\tNetwork operation shutdown complete!";
}
// static
void PlatformClientPosix::SetInstance(PlatformClientPosix* instance) {
OSP_DCHECK(!instance_);
instance_ = instance;
}
PlatformClientPosix::PlatformClientPosix(
Clock::duration networking_operation_timeout)
: task_runner_(new TaskRunnerImpl(Clock::now)),
networking_loop_timeout_(networking_operation_timeout),
networking_loop_thread_(&PlatformClientPosix::RunNetworkLoopUntilStopped,
this),
task_runner_thread_(
std::thread(&TaskRunnerImpl::RunUntilStopped, task_runner_.get())) {}
PlatformClientPosix::PlatformClientPosix(
Clock::duration networking_operation_timeout,
std::unique_ptr<TaskRunnerImpl> task_runner)
: task_runner_(std::move(task_runner)),
networking_loop_timeout_(networking_operation_timeout),
networking_loop_thread_(&PlatformClientPosix::RunNetworkLoopUntilStopped,
this) {}
SocketHandleWaiterPosix* PlatformClientPosix::socket_handle_waiter() {
std::call_once(waiter_initialization_, [this]() {
waiter_ = std::make_unique<SocketHandleWaiterPosix>(&Clock::now);
waiter_created_.store(true);
});
return waiter_.get();
}
void PlatformClientPosix::RunNetworkLoopUntilStopped() {
while (networking_loop_running_.load()) {
if (!waiter_created_.load()) {
std::this_thread::sleep_for(networking_loop_timeout_);
continue;
}
socket_handle_waiter()->ProcessHandles(networking_loop_timeout_);
}
}
} // namespace openscreen
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