Added an application for testing the reading of route information from bird

Author: stal76

demo/bird_app/Makefile

@@ -0,0 +1,17 @@
+CXX       := g++
+CXX_FLAGS := -Wall -Wextra -std=c++17
+
+BIN     := build
+SRC     := bird_app.cpp ../../controlplane/libbird.cpp
+INCLUDE := -I . -I ../.. -I ../../subprojects/json/include/
+LIB     := lib
+EXECUTABLE  := bird_app
+
+
+all: $(BIN)/$(EXECUTABLE)
+
+$(BIN)/$(EXECUTABLE): $(SRC)
+	$(CXX) $(CXX_FLAGS) $(INCLUDE) -L$(LIB) $^ -o $@
+
+clean:
+	-rm $(BIN)/*

demo/bird_app/bird_app.cpp

@@ -0,0 +1,134 @@
+// #include "bird_app.h"
+#include "common/define.h"
+#include "controlplane/libbird.h"
+
+#include <iostream>
+#include <variant>
+
+common::log::LogPriority common::log::logPriority = common::log::TLOG_DEBUG;
+
+std::ostream& operator<<(std::ostream& os, const common::community_t& lc)
+{
+	os << lc.toString();
+	return os;
+}
+
+std::ostream& operator<<(std::ostream& os, const common::large_community_t& lc)
+{
+	os << lc.toString();
+	return os;
+}
+
+template<typename T>
+std::ostream& PrintCollection(std::ostream& os, T& data, char left, char right)
+{
+	if (data.empty())
+	{
+		os << "null";
+		return os;
+	}
+
+	os << left;
+	bool first = true;
+	for (const auto& value : data)
+	{
+		if (first)
+		{
+			first = false;
+		}
+		else
+		{
+			os << ", ";
+		}
+		os << value;
+	}
+	os << right;
+
+	return os;
+}
+
+template<typename T>
+std::ostream& operator<<(std::ostream& os, const std::set<T>& data)
+{
+	return PrintCollection(os, data, '{', '}');
+}
+
+template<typename T>
+std::ostream& operator<<(std::ostream& os, const std::vector<T>& data)
+{
+	return PrintCollection(os, data, '[', ']');
+}
+
+void PrintRibRequests(common::icp::rib_update::request& requests)
+{
+	std::cout << "--------------------------------------------\n";
+	std::cout << "new requests: " << requests.size() << "\n";
+	for (const auto& action : requests)
+	{
+		if (std::holds_alternative<common::icp::rib_update::insert>(action))
+		{
+			const auto& [protocol, vrf, priority, insert_data] = std::get<common::icp::rib_update::insert>(action);
+			std::cout << "insert, protocol=" << protocol << ", vrf=" << vrf << ", priority=" << priority << "\n";
+			for (const auto& [key, tables] : insert_data)
+			{
+				const auto& [peer, origin, med, aspath, community, large_community, local_preference] = key;
+				std::cout << "\tpeer=" << peer.toString() << ", origin=" << origin << ", med=" << med
+				          << ", aspath=" << aspath << ", community=" << community
+				          << ", large_community=" << large_community << "\n";
+				for (const auto& [table_name, nexthops] : tables)
+				{
+					std::cout << "\t\ttable_name=" << table_name << "\n";
+					for (const auto& [nexthop, prefixes] : nexthops)
+					{
+						std::cout << "\t\t\tnexthop=" << nexthop.toString() << "\n";
+						for (const auto& [prefix, path_information, labels] : prefixes)
+						{
+							std::cout << "\t\t\t\tprefix=" << prefix.toString() << ", path_information="
+							          << path_information << ", labels=" << labels << "\n";
+						}
+					}
+				}
+			}
+		}
+		else if (std::holds_alternative<common::icp::rib_update::remove>(action))
+		{
+			const auto& [protocol, vrf, priority, peers] = std::get<common::icp::rib_update::remove>(action);
+			std::cout << "remove, protocol=" << protocol << ", vrf=" << vrf << ", priority=" << priority << "\n";
+			for (const auto& [peer, tables] : peers)
+			{
+				std::cout << "\tpeer=" << peer.toString() << "\n";
+				for (const auto& [table_name, prefixes] : tables)
+				{
+					std::cout << "\t\ttable_name=" << table_name << "\n";
+					for (const auto& [prefix, path_information, labels] : prefixes)
+					{
+						std::cout << "\t\t\tprefix=" << prefix.toString() << ", path_information="
+						          << path_information << ", labels=" << labels << "\n";
+					}
+				}
+			}
+		}
+		else
+		{
+			std::cout << "bad action type\n";
+		}
+	}
+
+	requests.clear();
+	std::cout.flush();
+}
+
+int main(int argc, char** argv)
+{
+	if (argc != 2)
+	{
+		std::cout << "Usage: " << argv[0] << " <name_socket_from_bird>\n";
+		return 1;
+	}
+
+	const char* sock_name = argv[1];
+	const char* vrf = "default";
+	read_bird_feed(sock_name, vrf, PrintRibRequests);
+
+	return 0;
+}

demo/bird_app/build/.gitignore

@@ -0,0 +1 @@
+bird_app