mirror of
https://github.com/kidfromjupiter/nearby.git
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88 lines
2.7 KiB
C++
88 lines
2.7 KiB
C++
// Copyright 2024 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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#ifndef PLATFORM_IMPL_LINUX_BLE_L2CAP_SOCKET_H_
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#define PLATFORM_IMPL_LINUX_BLE_L2CAP_SOCKET_H_
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#include <atomic>
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#include <memory>
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#include "absl/functional/any_invocable.h"
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#include "absl/synchronization/mutex.h"
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#include "internal/platform/exception.h"
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#include "internal/platform/implementation/ble.h"
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#include "internal/platform/input_stream.h"
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#include "internal/platform/output_stream.h"
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namespace nearby {
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namespace linux {
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class BleL2capInputStream final : public InputStream {
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public:
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explicit BleL2capInputStream(int fd);
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~BleL2capInputStream() override;
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ExceptionOr<ByteArray> Read(std::int64_t size) override;
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Exception Close() override;
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private:
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std::atomic<int> fd_{-1};
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};
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class BleL2capOutputStream final : public OutputStream {
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public:
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explicit BleL2capOutputStream(int fd);
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~BleL2capOutputStream() override;
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Exception Write(absl::string_view data) override;
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Exception Flush() override { return {Exception::kSuccess}; }
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Exception Close() override;
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private:
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mutable absl::Mutex fd_mutex_;
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std::atomic<int> fd_{-1};
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};
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class BleL2capSocket final : public api::ble::BleL2capSocket {
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public:
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BleL2capSocket(int fd, api::ble::BlePeripheral::UniqueId peripheral_id);
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~BleL2capSocket() override;
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InputStream& GetInputStream() override { return *input_stream_; }
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OutputStream& GetOutputStream() override { return *output_stream_; }
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Exception Close() override ABSL_LOCKS_EXCLUDED(mutex_);
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void SetCloseNotifier(absl::AnyInvocable<void()> notifier) override
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ABSL_LOCKS_EXCLUDED(mutex_);
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api::ble::BlePeripheral::UniqueId GetRemotePeripheralId() override {
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return peripheral_id_;
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}
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bool IsClosed() const ABSL_LOCKS_EXCLUDED(mutex_);
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private:
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void DoClose() ABSL_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
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mutable absl::Mutex mutex_;
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bool closed_ ABSL_GUARDED_BY(mutex_) = false;
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std::unique_ptr<BleL2capInputStream> input_stream_;
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std::unique_ptr<BleL2capOutputStream> output_stream_;
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api::ble::BlePeripheral::UniqueId peripheral_id_;
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absl::AnyInvocable<void()> close_notifier_ ABSL_GUARDED_BY(mutex_);
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};
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} // namespace linux
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} // namespace nearby
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#endif // PLATFORM_IMPL_LINUX_BLE_L2CAP_SOCKET_H_
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