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//
// Copyright 2010-2011 Ettus Research LLC
// Copyright 2018 Ettus Research, a National Instruments Company
//
// SPDX-License-Identifier: GPL-3.0-or-later
//
#include <uhd/property_tree.hpp>
#include <uhdlib/experts/expert_container.hpp>
#include <uhdlib/experts/expert_factory.hpp>
#include <boost/format.hpp>
#include <boost/test/unit_test.hpp>
#include <fstream>
#include <memory>
using namespace uhd::experts;
class worker1_t : public worker_node_t
{
public:
worker1_t(const node_retriever_t& db)
: worker_node_t("A+B=C"), _a(db, "A/desired"), _b(db, "B"), _c(db, "C")
{
bind_accessor(_a);
bind_accessor(_b);
bind_accessor(_c);
}
private:
void resolve() override
{
_c = _a + _b;
}
data_reader_t<int> _a;
data_reader_t<int> _b;
data_writer_t<int> _c;
};
//=============================================================================
class worker2_t : public worker_node_t
{
public:
worker2_t(const node_retriever_t& db)
: worker_node_t("C*D=E"), _c(db, "C"), _d(db, "D"), _e(db, "E")
{
bind_accessor(_c);
bind_accessor(_d);
bind_accessor(_e);
}
private:
void resolve() override
{
_e.set(_c.get() * _d.get());
}
data_reader_t<int> _c;
data_reader_t<int> _d;
data_writer_t<int> _e;
};
//=============================================================================
class worker3_t : public worker_node_t
{
public:
worker3_t(const node_retriever_t& db)
: worker_node_t("-B=F"), _b(db, "B"), _f(db, "F")
{
bind_accessor(_b);
bind_accessor(_f);
}
private:
void resolve() override
{
_f.set(-_b.get());
}
data_reader_t<int> _b;
data_writer_t<int> _f;
};
//=============================================================================
class worker4_t : public worker_node_t
{
public:
worker4_t(const node_retriever_t& db)
: worker_node_t("E-F=G"), _e(db, "E"), _f(db, "F"), _g(db, "G")
{
bind_accessor(_e);
bind_accessor(_f);
bind_accessor(_g);
}
private:
void resolve() override
{
_g.set(_e.get() - _f.get());
}
data_reader_t<int> _e;
data_reader_t<int> _f;
data_writer_t<int> _g;
};
//=============================================================================
class worker5_t : public worker_node_t
{
public:
worker5_t(const node_retriever_t& db, std::shared_ptr<int> output)
: worker_node_t("Consume_G"), _g(db, "G"), _c(db, "C"), _output(output)
{
bind_accessor(_g);
// bind_accessor(_c);
}
private:
void resolve() override
{
*_output = _g;
}
data_reader_t<int> _g;
data_writer_t<int> _c;
std::shared_ptr<int> _output;
};
class worker6_t : public worker_node_t
{
public:
worker6_t() : worker_node_t("null_worker") {}
private:
void resolve() override {}
};
//=============================================================================
#define DUMP_VARS \
BOOST_TEST_MESSAGE(str( \
boost::format( \
"### State = {A=%d%s, B=%d%s, C=%d%s, D=%d%s, E=%d%s, F=%d%s, G=%d%s}\n") \
% nodeA.get() % (nodeA.is_dirty() ? "*" : "") % nodeB.get() \
% (nodeB.is_dirty() ? "*" : "") % nodeC.get() % (nodeC.is_dirty() ? "*" : "") \
% nodeD.get() % (nodeD.is_dirty() ? "*" : "") % nodeE.get() \
% (nodeE.is_dirty() ? "*" : "") % nodeF.get() % (nodeF.is_dirty() ? "*" : "") \
% nodeG.get() % (nodeG.is_dirty() ? "*" : "")));
#define VALIDATE_ALL_DEPENDENCIES \
BOOST_CHECK(!nodeA.is_dirty()); \
BOOST_CHECK(!nodeB.is_dirty()); \
BOOST_CHECK(!nodeC.is_dirty()); \
BOOST_CHECK(!nodeD.is_dirty()); \
BOOST_CHECK(!nodeE.is_dirty()); \
BOOST_CHECK(!nodeF.is_dirty()); \
BOOST_CHECK(!nodeG.is_dirty()); \
BOOST_CHECK(nodeC.get() == nodeA.get() + nodeB.get()); \
BOOST_CHECK(nodeE.get() == nodeC.get() * nodeD.get()); \
BOOST_CHECK(nodeF.get() == -nodeB.get()); \
BOOST_CHECK(nodeG.get() == nodeE.get() - nodeF.get()); \
BOOST_CHECK(nodeG.get() == *final_output);
BOOST_AUTO_TEST_CASE(test_experts)
{
// Initialize container object
expert_container::sptr container = expert_factory::create_container("example");
uhd::property_tree::sptr tree = uhd::property_tree::make();
// Output of expert tree
std::shared_ptr<int> final_output = std::make_shared<int>();
// Add data nodes to container
expert_factory::add_dual_prop_node<int>(
container, tree, "A", 0, uhd::experts::AUTO_RESOLVE_ON_WRITE);
expert_factory::add_prop_node<int>(container, tree, "B", 0);
expert_factory::add_data_node<int>(container, "C", 0);
expert_factory::add_data_node<int>(container, "D", 1);
expert_factory::add_prop_node<int>(
container, tree, "E", 0, uhd::experts::AUTO_RESOLVE_ON_READ);
expert_factory::add_data_node<int>(container, "F", 0);
expert_factory::add_data_node<int>(container, "G", 0);
// Add worker nodes to container
expert_factory::add_worker_node<worker1_t>(container, container->node_retriever());
expert_factory::add_worker_node<worker2_t>(container, container->node_retriever());
expert_factory::add_worker_node<worker3_t>(container, container->node_retriever());
expert_factory::add_worker_node<worker4_t>(container, container->node_retriever());
expert_factory::add_worker_node<worker5_t>(
container, container->node_retriever(), final_output);
expert_factory::add_worker_node<worker6_t>(container);
// Once initialized, getting modify access to graph nodes is possible (by design) but
// extremely red-flaggy! But we do it here to monitor things
data_node_t<int>& nodeA =
*(const_cast<data_node_t<int>*>(dynamic_cast<const data_node_t<int>*>(
&container->node_retriever().lookup("A/desired"))));
data_node_t<int>& nodeB = *(const_cast<data_node_t<int>*>(
dynamic_cast<const data_node_t<int>*>(&container->node_retriever().lookup("B"))));
data_node_t<int>& nodeC = *(const_cast<data_node_t<int>*>(
dynamic_cast<const data_node_t<int>*>(&container->node_retriever().lookup("C"))));
data_node_t<int>& nodeD = *(const_cast<data_node_t<int>*>(
dynamic_cast<const data_node_t<int>*>(&container->node_retriever().lookup("D"))));
data_node_t<int>& nodeE = *(const_cast<data_node_t<int>*>(
dynamic_cast<const data_node_t<int>*>(&container->node_retriever().lookup("E"))));
data_node_t<int>& nodeF = *(const_cast<data_node_t<int>*>(
dynamic_cast<const data_node_t<int>*>(&container->node_retriever().lookup("F"))));
data_node_t<int>& nodeG = *(const_cast<data_node_t<int>*>(
dynamic_cast<const data_node_t<int>*>(&container->node_retriever().lookup("G"))));
DUMP_VARS
// Ensure init behavior
BOOST_CHECK(nodeA.is_dirty());
BOOST_CHECK(nodeB.is_dirty());
BOOST_CHECK(nodeC.is_dirty());
BOOST_CHECK(nodeD.is_dirty());
BOOST_CHECK(nodeE.is_dirty());
BOOST_CHECK(nodeF.is_dirty());
BOOST_CHECK(nodeG.is_dirty());
container->resolve_all();
VALIDATE_ALL_DEPENDENCIES // Ensure a default resolve
// Ensure basic node value propagation
tree->access<int>("B")
.set(3);
BOOST_CHECK(nodeB.get() == 3); // Ensure value propagated
BOOST_CHECK(nodeB.is_dirty()); // Ensure that nothing got resolved...
container->resolve_all();
VALIDATE_ALL_DEPENDENCIES
nodeD.set(2); // Hack for testing
// Ensure auto-resolve on write
tree->access<int>("A").set(200);
BOOST_CHECK(nodeC.get() == nodeA.get() + nodeB.get());
BOOST_CHECK(nodeE.get() == nodeC.get() * nodeD.get());
BOOST_CHECK(nodeG.get() == nodeE.get() - nodeF.get());
container->resolve_all();
VALIDATE_ALL_DEPENDENCIES
container->resolve_all();
VALIDATE_ALL_DEPENDENCIES
// Ensure auto-resolve on read
tree->access<int>("E").get();
BOOST_CHECK(nodeC.get() == nodeA.get() + nodeB.get());
BOOST_CHECK(nodeE.get() == nodeC.get() * nodeD.get());
BOOST_CHECK(!nodeE.is_dirty());
tree->access<int>("E").set(-10);
container->resolve_all(true);
VALIDATE_ALL_DEPENDENCIES
// Resolve to/from
tree->access<int>("A").set(-1);
container->resolve_to("C");
BOOST_CHECK(nodeC.get() == nodeA.get() + nodeB.get());
BOOST_CHECK(!nodeC.is_dirty());
container->resolve_to("Consume_G");
VALIDATE_ALL_DEPENDENCIES
}
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