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// Copyright (c) 2014-2015 Josh Blum
// SPDX-License-Identifier: BSL-1.0
#include <SoapySDR/Device.hpp>
#include <SoapySDR/Registry.hpp>
class NullDevice : public SoapySDR::Device
{
public:
NullDevice(void)
{
return;
}
std::string getDriverKey(void) const
{
return "null";
}
std::string getHardwareKey(void) const
{
return "null";
}
};
SoapySDR::KwargsList findNullDevice(const SoapySDR::Kwargs &args)
{
SoapySDR::KwargsList results;
//require that the user specify type=null
if (args.count("type") == 0) return results;
if (args.at("type") != "null") return results;
SoapySDR::Kwargs nullArgs;
nullArgs["type"] = "null";
results.push_back(nullArgs);
return results;
}
SoapySDR::Device *makeNullDevice(const SoapySDR::Kwargs &)
{
return new NullDevice();
}
/*!
* lateLoadNullDevice() is called by loadModules()
* to load the null device on-demand/not statically.
* This works around an issue when a loading module
* is linked against an older copy of SoapySDR
* which also tries to load its null device
* into the running copy of the library.
*/
void lateLoadNullDevice(void)
{
static SoapySDR::Registry registerNullDevice("null", &findNullDevice, &makeNullDevice, SOAPY_SDR_ABI_VERSION);
}
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