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// Copyright 2014 Renato Tegon Forti, Antony Polukhin.
// Copyright Antony Polukhin, 2015-2025.
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt
// or copy at http://www.boost.org/LICENSE_1_0.txt)
#include "../b2_workarounds.hpp"
//[callplugcpp_tutorial3
#include <boost/dll/import.hpp> // for import_alias
#include <iostream>
#include <memory>
#include "../tutorial_common/my_plugin_api.hpp"
namespace dll = boost::dll;
std::size_t search_for_symbols(const std::vector<boost::dll::fs::path>& plugins) {
std::size_t plugins_found = 0;
for (std::size_t i = 0; i < plugins.size(); ++i) {
std::cout << "Loading plugin: " << plugins[i] << '\n';
dll::shared_library lib(plugins[i], dll::load_mode::append_decorations);
if (!lib.has("create_plugin")) {
// no such symbol
continue;
}
// library has symbol, importing...
using pluginapi_create_t = std::shared_ptr<my_plugin_api>();
auto creator = dll::import_alias<pluginapi_create_t>(
std::move(lib), "create_plugin"
);
std::cout << "Matching plugin name: " << creator()->name() << std::endl;
++ plugins_found;
}
return plugins_found;
}
//]
int main(int argc, char* argv[]) {
BOOST_ASSERT(argc >= 3);
std::vector<boost::dll::fs::path> plugins;
plugins.reserve(argc - 1);
for (int i = 1; i < argc; ++i) {
if (b2_workarounds::is_shared_library(argv[i])) {
plugins.push_back(argv[i]);
}
}
const std::size_t res = search_for_symbols(plugins);
BOOST_ASSERT(res == 1);
(void)res;
}
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