Bartosz Podrygajlo
46c120651f
This commit introduces ZMQ-based radio library. Each pair of RX/TX antennas is represented by a ZMQ REQ/REP socket pair which streams continuous IQ samples from radio start until stop. Usage: Simplest configuration is to connect OAI NR UE to OAI GNB with the same number of antennas - by inverting the RX and TX channels in ZMQ radio configuration the gNBs TX is mapped to UEs RX antennas and vice versa.
47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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#pragma once
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#include <vector>
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#include <mutex>
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#include <memory>
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#include "common/platform_types.h"
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// A basic cirular sample buffer class
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class ring_buffer {
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private:
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std::unique_ptr<cf_t[]> buffer_;
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size_t head_ = 0;
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size_t tail_ = 0;
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size_t size_ = 0;
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size_t max_size_;
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public:
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ring_buffer(size_t max_size = 614400);
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size_t push_samples(const cf_t *samples, size_t nsamps);
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size_t push_zeros(size_t num_zeros);
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size_t pop_samples(cf_t *samples, size_t num_samples);
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void reset();
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void clear_samples();
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size_t size() const;
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};
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// A thread-safe wrapper around ring_buffer that counts overflows
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class overflow_buffer {
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ring_buffer buffer_;
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size_t zeros_to_send_;
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std::mutex mutex_;
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public:
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overflow_buffer(size_t max_size = 614400) : buffer_(max_size), zeros_to_send_(0)
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{
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}
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size_t push_samples(const cf_t *samples, size_t nsamps);
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size_t push_zeros(size_t num_zeros);
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size_t pop_samples(cf_t *samples, size_t num_samples);
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void reset();
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void clear_samples();
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size_t size();
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};
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