52 lines
1.3 KiB
C++
52 lines
1.3 KiB
C++
#ifndef STAGINGBUFFER_H
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#define STAGINGBUFFER_H
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#include <memory>
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#include <cstdint>
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#include <functional>
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#include <atomic>
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namespace smo {
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namespace stim_buff {
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/**
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* StagingBuffer manages a large buffer to guide io_uring in assembling some
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* number of Livox Avia pcloud UDP dgrams into a single stim frame.
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*
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* The buffer operates in a cycle:
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* 1. io_uring assembles UDP dgrams into the buffer until it's full
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* 2. Buffer is handed off to the stimbuff layer to be appended to the stimbuff.
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* 3. When the stimbuff layer has appended the current assembled frame, the
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* assembly buffer is reset and cycle repeats.
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*/
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class StagingBuffer
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{
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public:
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explicit StagingBuffer();
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~StagingBuffer();
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// Non-copyable, movable
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StagingBuffer(const StagingBuffer&) = delete;
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StagingBuffer& operator=(const StagingBuffer&) = delete;
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StagingBuffer(StagingBuffer&&) = default;
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StagingBuffer& operator=(StagingBuffer&&) = default;
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bool isAssembling() const { return isAssembling_; }
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void startAssembly();
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void stopAssembly();
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private:
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// Buffer data
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std::unique_ptr<uint8_t[]> buffer_;
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size_t bufferSize_;
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// Current state
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std::atomic<size_t> currentSize_;
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std::atomic<bool> isAssembling_;
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};
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} // namespace stim_buff
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} // namespace smo
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#endif // STAGINGBUFFER_H
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