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// This file is part of CAF, the C++ Actor Framework. See the file LICENSE in
// the main distribution directory for license terms and copyright or visit
// https://github.com/actor-framework/actor-framework/blob/master/LICENSE.
#define CAF_SUITE intrusive_ptr
#include "caf/intrusive_ptr.hpp"
#include "core-test.hpp"
// this test doesn't verify thread-safety of intrusive_ptr
// however, it is thread safe since it uses atomic operations only
#include <cstddef>
#include <vector>
#include "caf/make_counted.hpp"
#include "caf/ref_counted.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() {
CHECK_EQ(class0_instances, 0);
CHECK_EQ(class1_instances, 0);
}
};
} // namespace
BEGIN_FIXTURE_SCOPE(fixture)
CAF_TEST(make_counted) {
auto p = make_counted<class0>();
CHECK_EQ(class0_instances, 1);
CHECK(p->unique());
}
CAF_TEST(reset) {
class0ptr p;
p.reset(new class0, false);
CHECK_EQ(class0_instances, 1);
CHECK(p->unique());
}
CAF_TEST(get_test_rc) {
class0ptr p1;
p1 = get_test_rc();
class0ptr p2 = p1;
CHECK_EQ(class0_instances, 1);
CHECK_EQ(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());
CHECK(pl.front()->unique());
CHECK_EQ(class0_instances, 3);
}
CAF_TEST(full_test) {
auto p1 = make_counted<class0>();
CHECK_EQ(p1->is_subtype(), false);
CHECK_EQ(p1->unique(), true);
CHECK_EQ(class0_instances, 1);
CHECK_EQ(class1_instances, 0);
p1.reset(new class1, false);
CHECK_EQ(p1->is_subtype(), true);
CHECK_EQ(p1->unique(), true);
CHECK_EQ(class0_instances, 0);
CHECK_EQ(class1_instances, 1);
auto p2 = make_counted<class1>();
p1 = p2;
CHECK_EQ(p1->unique(), false);
CHECK_EQ(class0_instances, 0);
CHECK_EQ(class1_instances, 1);
CHECK_EQ(p1, static_cast<class0*>(p2.get()));
}
END_FIXTURE_SCOPE()
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