kopia lustrzana https://github.com/cariboulabs/cariboulite
101 wiersze
2.8 KiB
C++
101 wiersze
2.8 KiB
C++
/* -*- c++ -*- */
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/*
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* Copyright 2021 Jeff Long
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* Copyright 2018-2021 Libre Space Foundation <http://libre.space>
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*
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* SPDX-License-Identifier: GPL-3.0-or-later
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "source_impl.h"
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#include <SoapySDR/Errors.hpp>
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#include <iostream>
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namespace gr {
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namespace soapy {
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source::sptr source::make(const std::string& device,
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const std::string& type,
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size_t nchan,
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const std::string& dev_args,
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const std::string& stream_args,
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const std::vector<std::string>& tune_args,
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const std::vector<std::string>& other_settings)
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{
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return gnuradio::make_block_sptr<source_impl>(
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device, type, nchan, dev_args, stream_args, tune_args, other_settings);
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}
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source_impl::source_impl(const std::string& device,
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const std::string& type,
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size_t nchan,
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const std::string& dev_args,
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const std::string& stream_args,
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const std::vector<std::string>& tune_args,
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const std::vector<std::string>& other_settings)
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: gr::block("source", gr::io_signature::make(0, 0, 0), args_to_io_sig(type, nchan)),
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block_impl(SOAPY_SDR_RX,
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device,
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type,
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nchan,
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dev_args,
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stream_args,
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tune_args,
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other_settings)
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{
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}
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int source_impl::general_work(int noutput_items,
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__GR_ATTR_UNUSED gr_vector_int& ninput_items,
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__GR_ATTR_UNUSED gr_vector_const_void_star& input_items,
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gr_vector_void_star& output_items)
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{
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long long int time_ns = 0;
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int flags = 0;
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const long timeout_us = 500000; // 0.5 sec
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int nout = 0;
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for (;;) {
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// No command handlers while reading
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int result;
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{
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std::lock_guard<std::mutex> l(d_device_mutex);
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result = d_device->readStream(
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d_stream, output_items.data(), noutput_items, flags, time_ns, timeout_us);
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}
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if (result >= 0) {
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nout = result;
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break;
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}
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switch (result) {
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// Retry on overflow. Data has been lost.
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case SOAPY_SDR_OVERFLOW:
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std::cerr << "sO" << std::flush;
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continue;
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// Yield back to scheduler on timeout.
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case SOAPY_SDR_TIMEOUT:
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break;
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// Report and yield back to scheduler on other errors.
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default:
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d_logger->warn("Soapy source error: {:s}", SoapySDR::errToStr(result));
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break;
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}
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break;
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};
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return nout;
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}
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} /* namespace soapy */
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} /* namespace gr */
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