mirror of
https://github.com/TokTok/c-toxcore
synced 2026-05-03 01:06:07 +00:00
iphydf
8a8d02785e
- Add `MpscQueue` for thread-safe task scheduling. - Add `ToxRunner` to execute Tox instances in dedicated threads. - Update `Simulation` to coordinate time steps across multiple runners using a synchronization barrier. - Refactor `FakeMemory` and `FakeClock` to be thread-safe. - Update `tox_network` helpers and tests to utilize the threaded runner infrastructure.
84 lines
2.1 KiB
C++
84 lines
2.1 KiB
C++
/* SPDX-License-Identifier: GPL-3.0-or-later
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* Copyright © 2026 The TokTok team.
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*/
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#ifndef C_TOXCORE_TESTING_SUPPORT_MPSC_QUEUE_H
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#define C_TOXCORE_TESTING_SUPPORT_MPSC_QUEUE_H
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#include <condition_variable>
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#include <deque>
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#include <mutex>
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namespace tox::test {
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/**
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* @brief Multiple Producer, Single Consumer Queue.
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*
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* This queue implementation provides thread-safe access for multiple producers
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* pushing items and a single consumer popping items. It uses a `std::mutex`
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* and `std::condition_variable` for synchronization.
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*
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* @tparam T The type of elements stored in the queue.
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*/
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template <typename T>
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class MpscQueue {
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public:
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MpscQueue() = default;
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~MpscQueue() = default;
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// Disable copy/move to prevent accidental sharing/slicing issues
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MpscQueue(const MpscQueue &) = delete;
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MpscQueue &operator=(const MpscQueue &) = delete;
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/**
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* @brief Pushes a value onto the queue.
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* Thread-safe (Multiple Producers).
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*/
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void push(T value)
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{
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{
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std::lock_guard<std::mutex> lock(mutex_);
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queue_.push_back(std::move(value));
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}
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cv_.notify_one();
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}
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/**
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* @brief Pops a value from the queue, blocking if empty.
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* Thread-safe (Single Consumer).
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*/
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T pop()
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{
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std::unique_lock<std::mutex> lock(mutex_);
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cv_.wait(lock, [this] { return !queue_.empty(); });
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T value = std::move(queue_.front());
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queue_.pop_front();
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return value;
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}
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/**
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* @brief Tries to pop a value from the queue without blocking.
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* Thread-safe (Single Consumer).
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*
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* @param out Reference to store the popped value.
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* @return true if a value was popped, false if the queue was empty.
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*/
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bool try_pop(T &out)
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{
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std::lock_guard<std::mutex> lock(mutex_);
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if (queue_.empty())
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return false;
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out = std::move(queue_.front());
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queue_.pop_front();
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return true;
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}
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private:
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std::deque<T> queue_;
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std::mutex mutex_;
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std::condition_variable cv_;
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};
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} // namespace tox::test
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#endif // C_TOXCORE_TESTING_SUPPORT_MPSC_QUEUE_H
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