static void delayBlockTestCase(const int delayVal)
{
auto feeder = Pothos::BlockRegistry::make("/blocks/feeder_source", "int");
auto delay = Pothos::BlockRegistry::make("/blocks/delay");
auto collector = Pothos::BlockRegistry::make("/blocks/collector_sink", "int");
//setup
std::cout << "delayBlockTestCase " << delayVal << std::endl;
Pothos::BufferChunk buff0(typeid(int), 100);
feeder.callVoid("feedBuffer", buff0);
delay.callVoid("setDelay", delayVal);
//run the topology
std::cout << "run the topology\n";
{
Pothos::Topology topology;
topology.connect(feeder, 0, delay, 0);
topology.connect(delay, 0, collector, 0);
topology.commit();
POTHOS_TEST_TRUE(topology.waitInactive());
}
auto buff1 = collector.call<Pothos::BufferChunk>("getBuffer");
POTHOS_TEST_EQUAL(buff1.elements(), size_t(100-delayVal));
}
/***********************************************************************
* Vector
**********************************************************************/
static Pothos::Proxy convertVectorToJVector(Pothos::ProxyEnvironment::Sptr env, const Pothos::ProxyVector &vec)
{
auto jVector = env->findProxy("java.util.Vector").callProxy("new");
jVector.callVoid("setSize", vec.size());
for (size_t i = 0; i < vec.size(); i++)
{
jVector.callVoid("set", i, vec[i]);
}
return jVector;
}
void LuaInstance::postframe() {
if( !isFunction( "postframe" ) )
return;
pushFunction( "postframe" );
callVoid();
}
void LuaInstance::stop() {
if( !isFunction( "stop" ) )
return;
pushFunction( "stop" );
callVoid();
}
Pothos::ProxyEnvironment::Sptr EnvironmentEval::makeEnvironment(void)
{
if (_zoneName == "gui") return Pothos::ProxyEnvironment::make("managed");
const auto hostUri = getHostProcFromConfig(_zoneName, _config).first;
//connect to the remote host and spawn a server
auto serverEnv = Pothos::RemoteClient(hostUri).makeEnvironment("managed");
auto serverHandle = serverEnv->findProxy("Pothos/RemoteServer")("tcp://"+Pothos::Util::getWildcardAddr(), false/*noclose*/);
//construct the uri for the new server
auto actualPort = serverHandle.call<std::string>("getActualPort");
Poco::URI newHostUri(hostUri);
newHostUri.setPort(std::stoul(actualPort));
//connect the client environment
auto client = Pothos::RemoteClient(newHostUri.toString());
client.holdRef(Pothos::Object(serverHandle));
auto env = client.makeEnvironment("managed");
//determine log delivery address
//FIXME syslog listener doesn't support IPv6, special precautions taken:
const auto logSource = (not _zoneName.isEmpty())? _zoneName.toStdString() : newHostUri.getHost();
const auto syslogListenPort = Pothos::System::Logger::startSyslogListener();
Poco::Net::SocketAddress serverAddr(env->getPeeringAddress(), syslogListenPort);
//deal with IPv6 addresses because the syslog server only binds to IPv4
if (serverAddr.family() == Poco::Net::IPAddress::IPv6)
{
//convert IPv6 mapped ports to IPv4 format when possible
if (serverAddr.host().isIPv4Mapped())
{
const Poco::Net::IPAddress v4Mapped(static_cast<const char *>(serverAddr.host().addr())+12, 4);
serverAddr = Poco::Net::SocketAddress(v4Mapped, std::stoi(syslogListenPort));
}
//convert an IPv4 loopback address into an IPv4 loopback address
else if (serverAddr.host().isLoopback())
{
serverAddr = Poco::Net::SocketAddress("127.0.0.1", syslogListenPort);
}
//otherwise warn because the forwarding will not work
else
{
poco_warning_f1(Poco::Logger::get("PothosGui.EnvironmentEval.make"),
"Log forwarding not supported over IPv6: %s", logSource);
return env;
}
}
//setup log delivery from the server process
env->findProxy("Pothos/System/Logger").callVoid("startSyslogForwarding", serverAddr.toString());
env->findProxy("Pothos/System/Logger").callVoid("forwardStdIoToLogging", logSource);
serverHandle.callVoid("startSyslogForwarding", serverAddr.toString(), logSource);
return env;
}
/***********************************************************************
* Map
**********************************************************************/
static Pothos::Proxy convertMapToJMap(Pothos::ProxyEnvironment::Sptr env, const Pothos::ProxyMap &map)
{
auto jMap = env->findProxy("java.util.HashMap").callProxy("new");
for (const auto &entry : map)
{
jMap.callVoid("put", entry.first, entry.second);
}
return jMap;
}
/***********************************************************************
* Set
**********************************************************************/
static Pothos::Proxy convertSetToJSet(Pothos::ProxyEnvironment::Sptr env, const Pothos::ProxySet &set)
{
auto jSet = env->findProxy("java.util.HashSet").callProxy("new");
for (const auto &entry : set)
{
jSet.callVoid("add", entry);
}
return jSet;
}
/*!
* Get a copier block for a domain crossing between mainPort and all connected subPorts.
* If the copier block is not needed to handle this domain crossing, return a null Proxy.
*/
static Pothos::Proxy getCopierForDomainCrossing(
const Port &mainPort,
const std::vector<Port> &subPorts,
const bool isInput
)
{
if (isDomainCrossingAcceptable(mainPort, subPorts, isInput)) return Pothos::Proxy();
auto registry = mainPort.obj.getEnvironment()->findProxy("Pothos/BlockRegistry");
auto copier = registry.callProxy("/blocks/copier");
copier.callVoid("setName", "DomainBridge");
return copier;
}
void LuaInstance::openLibraries() {
//Limited list of libraries to load
static const luaL_Reg acLibraries[] = {
{ "", luaopen_base }, //standard functions, e.g. print, load, loadfile, etc.
{ LUA_BITLIBNAME, luaopen_bit }, //bit operations
//{ LUA_DBLIBNAME, luaopen_debug }, //debugging utilities; e.g. information about a function, access to local variables, etc
//{ LUA_FFILIBNAME, luaopen_ffi }, //LuaJIT; allows binding to C functions from Lua
//{ LUA_IOLIBNAME, luaopen_io }, //File I/O among other things
//{ LUA_JITLIBNAME, luaopen_jit }, //LuaJIT; control JIT compilation (turn on/off from Lua, among other things)
{ LUA_MATHLIBNAME, luaopen_math }, //Mathematics library (sqrt, sin, cos, etc).
//{ LUA_OSLIBNAME, luaopen_os }, //System date & time, delete, rename, execute, exit, etc
//{ LUA_LOADLIBNAME, luaopen_package }, //loadlib
{ LUA_STRLIBNAME, luaopen_string }, //string operations
{ LUA_TABLIBNAME, luaopen_table }, //table operations
{ nullptr, nullptr } //delimiter
};
//Load libraries
for( const luaL_Reg* p = acLibraries; p->name != nullptr ; ++p ) {
lua_pushcfunction( m_state, p->func );
callVoid( p->name );
}
}
static double filterToneGetRMS(
const double sampRate,
const double waveFreq,
const size_t decim,
const size_t interp
)
{
auto env = Pothos::ProxyEnvironment::make("managed");
auto registry = env->findProxy("Pothos/BlockRegistry");
auto waveSource = registry.callProxy("/blocks/waveform_source", "complex128");
waveSource.callVoid("setWaveform", "SINE");
waveSource.callVoid("setFrequency", waveFreq);
waveSource.callVoid("setSampleRate", sampRate);
auto finiteRelease = registry.callProxy("/blocks/finite_release");
finiteRelease.callVoid("setTotalElements", 4096);
auto filter = registry.callProxy("/blocks/fir_filter", "complex128", "COMPLEX");
filter.callVoid("setDecimation", decim);
filter.callVoid("setInterpolation", interp);
auto designer = registry.callProxy("/blocks/fir_designer");
designer.callVoid("setSampleRate", (sampRate*interp)/decim);
designer.callVoid("setFilterType", "COMPLEX_BAND_PASS");
designer.callVoid("setFrequencyLower", waveFreq-0.1*sampRate);
designer.callVoid("setFrequencyUpper", waveFreq+0.1*sampRate);
designer.callVoid("setNumTaps", 100);
auto probe = registry.callProxy("/blocks/stream_probe", "complex128");
probe.callVoid("setMode", "RMS");
//propagate the taps
{
Pothos::Topology topology;
topology.connect(designer, "tapsChanged", filter, "setTaps");
topology.commit();
POTHOS_TEST_TRUE(topology.waitInactive());
}
//run the topology
{
Pothos::Topology topology;
topology.connect(waveSource, 0, finiteRelease, 0);
topology.connect(finiteRelease, 0, filter, 0);
topology.connect(filter, 0, probe, 0);
topology.commit();
POTHOS_TEST_TRUE(topology.waitInactive());
}
return probe.call<double>("value");
}