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/******************************************************************************
* ____ _ _____ *
* / ___| / \ | ___| C++ *
* | | / _ \ | |_ Actor *
* | |___ / ___ \| _| Framework *
* \____/_/ \_|_| *
* *
* Copyright 2011-2018 Dominik Charousset *
* *
* Distributed under the terms and conditions of the BSD 3-Clause License or *
* (at your option) under the terms and conditions of the Boost Software *
* License 1.0. See accompanying files LICENSE and LICENSE_ALTERNATIVE. *
* *
* If you did not receive a copy of the license files, see *
* http://opensource.org/licenses/BSD-3-Clause and *
* http://www.boost.org/LICENSE_1_0.txt. *
******************************************************************************/
#include "caf/config.hpp"
#define CAF_SUITE intrusive_ptr
#include "caf/test/unit_test.hpp"
// this test dosn't verify thread-safety of intrusive_ptr
// however, it is thread safe since it uses atomic operations only
#include <vector>
#include <cstddef>
#include "caf/ref_counted.hpp"
#include "caf/make_counted.hpp"
#include "caf/intrusive_ptr.hpp"
using namespace caf;
namespace {
int class0_instances = 0;
int class1_instances = 0;
class class0;
class class1;
using class0ptr = intrusive_ptr<class0>;
using class1ptr = intrusive_ptr<class1>;
class class0 : public ref_counted {
public:
explicit class0(bool subtype = false) : subtype_(subtype) {
if (!subtype) {
++class0_instances;
}
}
~class0() override {
if (!subtype_) {
--class0_instances;
}
}
bool is_subtype() const {
return subtype_;
}
virtual class0ptr create() const {
return make_counted<class0>();
}
private:
bool subtype_;
};
class class1 : public class0 {
public:
class1() : class0(true) {
++class1_instances;
}
~class1() override {
--class1_instances;
}
class0ptr create() const override {
return make_counted<class1>();
}
};
class0ptr get_test_rc() {
return make_counted<class0>();
}
class0ptr get_test_ptr() {
return get_test_rc();
}
struct fixture {
~fixture() {
CAF_CHECK_EQUAL(class0_instances, 0);
CAF_CHECK_EQUAL(class1_instances, 0);
}
};
} // namespace
CAF_TEST_FIXTURE_SCOPE(atom_tests, fixture)
CAF_TEST(make_counted) {
auto p = make_counted<class0>();
CAF_CHECK_EQUAL(class0_instances, 1);
CAF_CHECK(p->unique());
}
CAF_TEST(reset) {
class0ptr p;
p.reset(new class0, false);
CAF_CHECK_EQUAL(class0_instances, 1);
CAF_CHECK(p->unique());
}
CAF_TEST(get_test_rc) {
class0ptr p1;
p1 = get_test_rc();
class0ptr p2 = p1;
CAF_CHECK_EQUAL(class0_instances, 1);
CAF_CHECK_EQUAL(p1->unique(), false);
}
CAF_TEST(list) {
std::vector<class0ptr> pl;
pl.push_back(get_test_ptr());
pl.push_back(get_test_rc());
pl.push_back(pl.front()->create());
CAF_CHECK(pl.front()->unique());
CAF_CHECK_EQUAL(class0_instances, 3);
}
CAF_TEST(full_test) {
auto p1 = make_counted<class0>();
CAF_CHECK_EQUAL(p1->is_subtype(), false);
CAF_CHECK_EQUAL(p1->unique(), true);
CAF_CHECK_EQUAL(class0_instances, 1);
CAF_CHECK_EQUAL(class1_instances, 0);
p1.reset(new class1, false);
CAF_CHECK_EQUAL(p1->is_subtype(), true);
CAF_CHECK_EQUAL(p1->unique(), true);
CAF_CHECK_EQUAL(class0_instances, 0);
CAF_CHECK_EQUAL(class1_instances, 1);
auto p2 = make_counted<class1>();
p1 = p2;
CAF_CHECK_EQUAL(p1->unique(), false);
CAF_CHECK_EQUAL(class0_instances, 0);
CAF_CHECK_EQUAL(class1_instances, 1);
CAF_CHECK_EQUAL(p1, static_cast<class0*>(p2.get()));
}
CAF_TEST_FIXTURE_SCOPE_END()
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