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// Copyright 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/udp_socket_reader_posix.h"
#include <chrono>
#include <functional>
#include "platform/impl/socket_handle_posix.h"
#include "platform/impl/udp_socket_posix.h"
#include "util/osp_logging.h"
namespace openscreen {
UdpSocketReaderPosix::UdpSocketReaderPosix(SocketHandleWaiter* waiter)
: waiter_(waiter) {}
UdpSocketReaderPosix::~UdpSocketReaderPosix() {
waiter_->UnsubscribeAll(this);
}
void UdpSocketReaderPosix::ProcessReadyHandle(SocketHandleRef handle,
uint32_t flags) {
if (flags & SocketHandleWaiter::Flags::kReadable) {
std::lock_guard<std::mutex> lock(mutex_);
// NOTE: Because sockets_ is expected to remain small, the performance here
// is better than using an unordered_set.
for (UdpSocketPosix* socket : sockets_) {
if (socket->GetHandle() == handle) {
socket->ReceiveMessage();
break;
}
}
}
}
void UdpSocketReaderPosix::OnCreate(UdpSocket* socket) {
UdpSocketPosix* read_socket = static_cast<UdpSocketPosix*>(socket);
{
std::lock_guard<std::mutex> lock(mutex_);
sockets_.push_back(read_socket);
}
waiter_->Subscribe(this, std::cref(read_socket->GetHandle()));
}
void UdpSocketReaderPosix::OnDestroy(UdpSocket* socket) {
UdpSocketPosix* destroyed_socket = static_cast<UdpSocketPosix*>(socket);
OnDelete(destroyed_socket);
}
void UdpSocketReaderPosix::OnDelete(UdpSocketPosix* socket,
bool disable_locking_for_testing) {
{
std::unique_lock<std::mutex> lock(mutex_);
auto it = std::find(sockets_.begin(), sockets_.end(), socket);
if (it != sockets_.end()) {
sockets_.erase(it);
}
}
waiter_->OnHandleDeletion(this, std::cref(socket->GetHandle()),
disable_locking_for_testing);
}
bool UdpSocketReaderPosix::IsMappedReadForTesting(
UdpSocketPosix* socket) const {
return std::find(sockets_.begin(), sockets_.end(), socket) != sockets_.end();
}
} // namespace openscreen
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