digital_in_source_impl.h

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/* -*- c++ -*- */
/*
 * Copyright 2022 Analog Devices Inc..
 *
 * SPDX-License-Identifier: GPL-3.0-or-later
 */
 
#ifndef INCLUDED_M2K_DIGITAL_IN_SOURCE_IMPL_H
#define INCLUDED_M2K_DIGITAL_IN_SOURCE_IMPL_H
 
#include <gnuradio/m2k/digital_in_source.h>
#include <libm2k/digital/m2kdigital.hpp>
#include <mutex>
#include <thread>
#include <condition_variable>
 
namespace gr {
  namespace m2k {
 
    class digital_in_source_impl : public digital_in_source
    {
    private:
            libm2k::digital::M2kDigital *d_digital;
            const std::string d_uri;
            int d_channel;
 
            unsigned int d_timeout;
            bool d_deinit;
 
            unsigned int d_buffer_size;
            unsigned int d_sample_index;
            unsigned long d_items_in_buffer;
            const unsigned short *d_raw_samples;
            double d_data_rate;
 
            pmt::pmt_t d_port_id;
 
            std::mutex d_mutex;
            std::condition_variable d_cond_wait;
            std::thread d_refill_thread;
            volatile bool d_empty_buffer{}, d_thread_stopped{};
 
    public:
            digital_in_source_impl(libm2k::context::M2k *context,
                                                       int buffer_size,
                                                       const int channel,
                                                       double sampling_frequency,
                                                       int kernel_buffers,
                                                       bool streaming,
                                                       bool deinit,
                                                       double data_rate);
 
            ~digital_in_source_impl();
 
            void refill_buffer();
 
            int work(int noutput_items,
                             gr_vector_const_void_star &input_items,
                             gr_vector_void_star &output_items);
 
            bool start() override;
            bool stop() override;
 
            void set_params(double sampling_frequency, bool streaming) override;
 
            void set_data_rate(double data) override;
 
            void set_timeout_ms(unsigned int timeout) override;
 
            void set_buffer_size(int buffer_size);
    };
 
  } // namespace m2k
} // namespace gr
 
#endif /* INCLUDED_M2K_DIGITAL_IN_SOURCE_IMPL_H */