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// Copyright 2011-2012 Renato Tegon Forti.
// 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)
// For more information, see http://www.boost.org
#include "../example/b2_workarounds.hpp"
#include <boost/dll.hpp>
#include <boost/core/lightweight_test.hpp>
#include <functional>
#include <memory>
#include <boost/fusion/container.hpp>
// lib functions
typedef float (lib_version_func)();
typedef void (say_hello_func) ();
typedef int (increment) (int);
typedef boost::fusion::vector<std::vector<int>, std::vector<int>, std::vector<int>, const std::vector<int>*, std::vector<int>* > do_share_res_t;
typedef std::shared_ptr<do_share_res_t> (do_share_t)(
std::vector<int> v1,
std::vector<int>& v2,
const std::vector<int>& v3,
const std::vector<int>* v4,
std::vector<int>* v5
);
void refcountable_test(boost::dll::fs::path shared_library_path) {
using namespace boost::dll;
using namespace boost::fusion;
std::vector<int> v(1000);
{
std::function<say_hello_func> sz2
= import_symbol<say_hello_func>(shared_library_path, "say_hello");
sz2();
sz2();
sz2();
}
#if defined(__GNUC__) && __GNUC__ >= 4 && defined(__ELF__)
{
const int the_answer = import_symbol<int(int)>(shared_library_path, "protected_function")(0);
BOOST_TEST_EQ(the_answer, 42);
}
#endif
{
std::function<std::size_t(const std::vector<int>&)> sz
= import_alias<std::size_t(const std::vector<int>&)>(shared_library_path, "foo_bar");
BOOST_TEST(sz(v) == 1000);
}
{
std::function<do_share_t> f;
{
std::function<do_share_t> f2 = import_alias<do_share_t>(shared_library_path, "do_share");
f = f2;
}
std::vector<int> v1(1, 1), v2(2, 2), v3(3, 3), v4(4, 4), v5(1000, 5);
auto res = f(v1, v2, v3, &v4, &v5);
BOOST_TEST(at_c<0>(*res).size() == 1); BOOST_TEST(at_c<0>(*res).front() == 1);
BOOST_TEST(at_c<1>(*res).size() == 2); BOOST_TEST(at_c<1>(*res).front() == 2);
BOOST_TEST(at_c<2>(*res).size() == 3); BOOST_TEST(at_c<2>(*res).front() == 3);
BOOST_TEST(at_c<3>(*res)->size() == 4); BOOST_TEST(at_c<3>(*res)->front() == 4);
BOOST_TEST(at_c<4>(*res)->size() == 1000); BOOST_TEST(at_c<4>(*res)->front() == 5);
BOOST_TEST(at_c<3>(*res) == &v4);
BOOST_TEST(at_c<4>(*res) == &v5);
BOOST_TEST(at_c<1>(*res).back() == 777);
BOOST_TEST(v5.back() == 9990);
}
{
auto i = import_symbol<int>(shared_library_path, "integer_g");
BOOST_TEST(*i == 100);
decltype(i) i2;
i.swap(i2);
BOOST_TEST(*i2 == 100);
}
{
std::function<int&()> f = import_alias<int&()>(shared_library_path, "ref_returning_function");
BOOST_TEST(f() == 0);
f() = 10;
BOOST_TEST(f() == 10);
std::function<int&()> f1 = import_alias<int&()>(shared_library_path, "ref_returning_function");
BOOST_TEST(f1() == 10);
f1() += 10;
BOOST_TEST(f() == 20);
}
{
auto i = import_symbol<const int>(shared_library_path, "const_integer_g");
BOOST_TEST(*i == 777);
auto i2 = i;
i.reset();
BOOST_TEST(*i2 == 777);
}
{
auto s = import_alias<std::string>(shared_library_path, "info");
BOOST_TEST(*s == "I am a std::string from the test_library (Think of me as of 'Hello world'. Long 'Hello world').");
decltype(s) s2;
s.swap(s2);
BOOST_TEST(*s2 == "I am a std::string from the test_library (Think of me as of 'Hello world'. Long 'Hello world').");
}
}
// exe function
extern "C" int BOOST_SYMBOL_EXPORT exef() {
return 15;
}
// Unit Tests
int main(int argc, char* argv[]) {
using namespace boost::dll;
boost::dll::fs::path shared_library_path = b2_workarounds::first_lib_from_argv(argc, argv);
BOOST_TEST(shared_library_path.string().find("test_library") != std::string::npos);
BOOST_TEST(b2_workarounds::is_shared_library(shared_library_path));
refcountable_test(shared_library_path);
shared_library sl(shared_library_path);
BOOST_TEST(sl.get<int>("integer_g") == 100);
sl.get<int>("integer_g") = 10;
BOOST_TEST(sl.get<int>("integer_g") == 10);
BOOST_TEST(sl.get<int>(std::string("integer_g")) == 10);
BOOST_TEST(sl.get<say_hello_func>("say_hello"));
sl.get<say_hello_func>("say_hello")();
float ver = sl.get<lib_version_func>("lib_version")();
BOOST_TEST(ver == 1.0);
int n = sl.get<increment>("increment")(1);
BOOST_TEST(n == 2);
BOOST_TEST(sl.get<const int>("const_integer_g") == 777);
std::function<int(int)> inc = sl.get<int(int)>("increment");
BOOST_TEST(inc(1) == 2);
BOOST_TEST(inc(2) == 3);
BOOST_TEST(inc(3) == 4);
// Checking that symbols are still available, after another load+unload of the library
{ shared_library sl2(shared_library_path); }
BOOST_TEST(inc(1) == 2);
BOOST_TEST(sl.get<int>("integer_g") == 10);
// Checking aliases
std::function<std::size_t(const std::vector<int>&)> sz
= sl.get_alias<std::size_t(const std::vector<int>&)>("foo_bar");
std::vector<int> v(10);
BOOST_TEST(sz(v) == 10);
BOOST_TEST(sl.get_alias<std::size_t>("foo_variable") == 42);
sz = sl.get<std::size_t(*)(const std::vector<int>&)>("foo_bar");
BOOST_TEST(sz(v) == 10);
BOOST_TEST(*sl.get<std::size_t*>("foo_variable") == 42);
{ // self
shared_library sl(program_location());
int val = sl.get<int(void)>("exef")();
BOOST_TEST(val == 15);
}
int& ref_to_internal_integer = sl.get<int&>("reference_to_internal_integer");
BOOST_TEST(ref_to_internal_integer == 0xFF0000);
int&& rvalue_ref_to_internal_integer = sl.get<int&&>("rvalue_reference_to_internal_integer");
BOOST_TEST(rvalue_ref_to_internal_integer == 0xFF0000);
return boost::report_errors();
}
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