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nearby/internal/platform/implementation/linux/ble_v2_server_socket.cc
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// Copyright 2024 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 "internal/platform/implementation/linux/ble_v2_server_socket.h"
#include <memory>
#include "absl/synchronization/mutex.h"
#include "internal/platform/exception.h"
#include "internal/platform/implementation/ble_v2.h"
#include "internal/platform/implementation/linux/ble_v2_socket.h"
#include "internal/platform/logging.h"
namespace nearby {
namespace linux {
std::unique_ptr<api::ble_v2::BleSocket> BleV2ServerSocket::Accept() {
absl::MutexLock lock(&mutex_);
LOG(INFO) << "BleV2ServerSocket::Accept waiting for connection";
while (!closed_ && pending_sockets_.empty()) {
cond_.Wait(&mutex_);
}
if (closed_) {
LOG(INFO) << "BleV2ServerSocket::Accept socket is closed";
return nullptr;
}
std::unique_ptr<BleV2Socket> socket = std::move(pending_sockets_.front());
pending_sockets_.pop_front();
LOG(INFO) << "BleV2ServerSocket::Accept accepted connection";
return socket;
}
Exception BleV2ServerSocket::Close() {
absl::MutexLock lock(&mutex_);
LOG(INFO) << "BleV2ServerSocket::Close for service " << service_id_;
if (closed_) {
return {Exception::kSuccess};
}
closed_ = true;
// Close all pending sockets
for (auto& socket : pending_sockets_) {
if (socket) {
socket->Close();
}
}
pending_sockets_.clear();
cond_.SignalAll();
return {Exception::kSuccess};
}
void BleV2ServerSocket::AddPendingSocket(std::unique_ptr<BleV2Socket> socket) {
absl::MutexLock lock(&mutex_);
if (closed_) {
LOG(WARNING)
<< "BleV2ServerSocket::AddPendingSocket socket is closed";
return;
}
pending_sockets_.push_back(std::move(socket));
cond_.SignalAll();
LOG(INFO) << "BleV2ServerSocket::AddPendingSocket added socket, "
<< "pending count: " << pending_sockets_.size();
}
} // namespace linux
} // namespace nearby