mirror of
https://github.com/kidfromjupiter/nearby.git
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122 lines
3.9 KiB
Objective-C
122 lines
3.9 KiB
Objective-C
// Copyright 2025 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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#include <memory>
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#import "internal/platform/implementation/apple/Mediums/BLEv2/GNCBLEL2CAPStream.h"
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#import "internal/platform/implementation/apple/ble_peripheral.h"
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#include "internal/platform/implementation/ble_v2.h"
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namespace nearby {
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namespace apple {
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/** A readable stream of bytes. */
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class BleL2capInputStream : public InputStream {
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public:
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// Creates a BleL2capInputStream.
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//
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// @param stream The underlying stream to use for reading and writing.
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explicit BleL2capInputStream(GNCBLEL2CAPStream* stream);
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~BleL2capInputStream() override = default;
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// Reads at most `size` bytes from the input stream.
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//
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// Returns an empty byte array on end of file, or Exception::kIo on error.
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ExceptionOr<ByteArray> Read(std::int64_t size) override;
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// Closes the stream preventing further reads.
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//
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// Returns Exception::kIo on error, otherwise Exception::kSuccess.
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Exception Close() override;
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private:
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GNCBLEL2CAPStream* stream_;
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};
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/** A writable stream of bytes. */
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class BleL2capOutputStream : public OutputStream {
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public:
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// Creates a BleL2capOutputStream.
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//
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// @param stream The underlying stream to use for reading and writing.
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explicit BleL2capOutputStream(GNCBLEL2CAPStream* stream);
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~BleL2capOutputStream() override = default;
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// Write the provided bytes to the output stream.
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//
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// Returns Exception::kIo on error, otherwise Exception::kSuccess.
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Exception Write(const ByteArray& data) override;
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// no-op
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//
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// Always returns Exception::kSuccess.
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Exception Flush() override;
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// Closes the stream preventing further writes.
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//
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// Returns Exception::kIo on error, otherwise Exception::kSuccess.
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Exception Close() override;
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private:
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GNCBLEL2CAPStream* stream_;
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};
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/**
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* Concrete BleL2capSocket implementation.
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*/
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class BleL2capSocket : public api::ble_v2::BleL2capSocket {
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public:
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explicit BleL2capSocket(GNCBLEL2CAPStream* stream);
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// The peripheral used to create the socket must outlive the socket or
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// undefined behavior will occur.
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BleL2capSocket(GNCBLEL2CAPStream* stream,
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api::ble_v2::BlePeripheral* peripheral);
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~BleL2capSocket() override = default;
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// Returns the InputStream of the BleL2capSocket.
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// On error, returned stream will report Exception::kIo on any operation.
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//
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// The returned object is not owned by the caller, and can be invalidated once
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// the BleL2capSocket object is destroyed.
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InputStream& GetInputStream() override;
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// Returns the OutputStream of the BleL2capSocket.
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// On error, returned stream will report Exception::kIo on any operation.
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//
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// The returned object is not owned by the caller, and can be invalidated once
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// the BleL2capSocket object is destroyed.
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OutputStream& GetOutputStream() override;
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// Returns Exception::kIo on error, Exception::kSuccess otherwise.
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Exception Close() override;
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// Sets the close notifier by client side.
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void SetCloseNotifier(absl::AnyInvocable<void()> notifier) override;
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// Returns valid BlePeripheral pointer if there is a connection, and
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// nullptr otherwise.
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api::ble_v2::BlePeripheral* GetRemotePeripheral() override {
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return peripheral_;
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}
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private:
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GNCBLEL2CAPStream* stream_;
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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_v2::BlePeripheral* peripheral_;
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};
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} // namespace apple
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} // namespace nearby |