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https://github.com/kidfromjupiter/nearby.git
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78 lines
2.8 KiB
Objective-C
78 lines
2.8 KiB
Objective-C
// Copyright 2023 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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// Note: File language is detected using heuristics. Many Objective-C++ headers
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// are incorrectly classified as C++ resulting in invalid linter errors. The use
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// of "NSArray" and other Foundation classes like "NSData", "NSDictionary" and
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// "NSUUID" are highly weighted for Objective-C and Objective-C++ scores. Oddly,
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// "#import <Foundation/Foundation.h>" does not contribute any points. This
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// comment alone should be enough to trick the IDE in to believing this is
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// actually some sort of Objective-C file. See:
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// cs/google3/devtools/search/lang/recognize_language_classifiers_data
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// TODO(b/293336684): Remove this file when shared Weave is complete.
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#import <Foundation/Foundation.h>
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#include <memory>
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#include "absl/functional/any_invocable.h"
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#include "internal/platform/exception.h"
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#import "internal/platform/implementation/apple/ble_socket.h"
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#include "internal/platform/implementation/ble.h"
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namespace nearby {
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namespace apple {
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// A BLE server socket for listening for incoming Weave sockets.
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class BleServerSocket : public api::ble::BleServerSocket {
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public:
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BleServerSocket() = default;
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~BleServerSocket() override;
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// Wait for an available socket.
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//
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// Blocks until either:
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// - at least one incoming connection request is available, or
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// - ServerSocket is closed.
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//
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// On success, returns connected socket, ready to exchange data or nullptr on
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// error. Once error is reported, it is permanent, and ServerSocket must be
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// closed.
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std::unique_ptr<api::ble::BleSocket> Accept() override
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ABSL_LOCKS_EXCLUDED(mutex_);
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// Close the server socket.
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//
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// Returns Exception::kIo on error, otherwise Exception::kSuccess.
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Exception Close() override ABSL_LOCKS_EXCLUDED(mutex_);
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bool Connect(std::unique_ptr<BleSocket> socket) ABSL_LOCKS_EXCLUDED(mutex_);
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void SetCloseNotifier(absl::AnyInvocable<void()> notifier)
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ABSL_LOCKS_EXCLUDED(mutex_);
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private:
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Exception DoClose() ABSL_EXCLUSIVE_LOCKS_REQUIRED(mutex_);
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mutable absl::Mutex mutex_;
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absl::CondVar cond_;
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absl::flat_hash_set<std::unique_ptr<BleSocket>> pending_sockets_
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ABSL_GUARDED_BY(mutex_);
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absl::AnyInvocable<void()> close_notifier_ ABSL_GUARDED_BY(mutex_);
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bool closed_ ABSL_GUARDED_BY(mutex_) = false;
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};
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} // namespace apple
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} // namespace nearby
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