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/*
* This file is open source software, licensed to you under the terms
* of the Apache License, Version 2.0 (the "License"). See the NOTICE file
* distributed with this work for additional information regarding copyright
* ownership. You may not use this file except in compliance with the License.
*
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
/*
* Copyright 2015 Cloudius Systems
*/
#define BOOST_TEST_MODULE core
#include <boost/test/included/unit_test.hpp>
#include <set>
#include <unordered_map>
#include <seastar/core/sstring.hh>
#include <seastar/core/shared_ptr.hh>
using namespace seastar;
struct expected_exception : public std::exception {};
struct A {
static bool destroyed;
A() {
destroyed = false;
}
virtual ~A() {
destroyed = true;
}
};
struct A_esft : public A, public enable_lw_shared_from_this<A_esft> {
};
struct B {
virtual void x() {}
};
bool A::destroyed = false;
BOOST_AUTO_TEST_CASE(explot_dynamic_cast_use_after_free_problem) {
shared_ptr<A> p = ::make_shared<A>();
{
auto p2 = dynamic_pointer_cast<B>(p);
BOOST_ASSERT(!p2);
}
BOOST_ASSERT(!A::destroyed);
}
class C : public enable_shared_from_this<C> {
public:
shared_ptr<C> dup() { return shared_from_this(); }
shared_ptr<const C> get() const { return shared_from_this(); }
};
BOOST_AUTO_TEST_CASE(test_const_ptr) {
shared_ptr<C> a = make_shared<C>();
shared_ptr<const C> ca = a;
BOOST_REQUIRE(ca == a);
shared_ptr<const C> cca = ca->get();
BOOST_REQUIRE(cca == ca);
}
struct D {};
BOOST_AUTO_TEST_CASE(test_lw_const_ptr_1) {
auto pd1 = make_lw_shared<const D>(D());
auto pd2 = make_lw_shared(D());
lw_shared_ptr<const D> pd3 = pd2;
BOOST_REQUIRE(pd2 == pd3);
}
struct E : enable_lw_shared_from_this<E> {};
BOOST_AUTO_TEST_CASE(test_lw_const_ptr_2) {
auto pe1 = make_lw_shared<const E>();
auto pe2 = make_lw_shared<E>();
lw_shared_ptr<const E> pe3 = pe2;
BOOST_REQUIRE(pe2 == pe3);
}
struct F : enable_lw_shared_from_this<F> {
auto const_method() const {
return shared_from_this();
}
};
BOOST_AUTO_TEST_CASE(test_shared_from_this_called_on_const_object) {
auto ptr = make_lw_shared<F>();
ptr->const_method();
}
BOOST_AUTO_TEST_CASE(test_exception_thrown_from_constructor_is_propagated) {
struct X {
X() {
throw expected_exception();
}
};
try {
auto ptr = make_lw_shared<X>();
BOOST_FAIL("Constructor should have thrown");
} catch (const expected_exception& e) {
BOOST_TEST_MESSAGE("Expected exception caught");
}
try {
auto ptr = ::make_shared<X>();
BOOST_FAIL("Constructor should have thrown");
} catch (const expected_exception& e) {
BOOST_TEST_MESSAGE("Expected exception caught");
}
}
BOOST_AUTO_TEST_CASE(test_indirect_functors) {
{
std::multiset<shared_ptr<sstring>, indirect_less<shared_ptr<sstring>>> a_set;
a_set.insert(make_shared<sstring>("k3"));
a_set.insert(make_shared<sstring>("k1"));
a_set.insert(make_shared<sstring>("k2"));
a_set.insert(make_shared<sstring>("k4"));
a_set.insert(make_shared<sstring>("k0"));
auto i = a_set.begin();
BOOST_REQUIRE_EQUAL(sstring("k0"), *(*i++));
BOOST_REQUIRE_EQUAL(sstring("k1"), *(*i++));
BOOST_REQUIRE_EQUAL(sstring("k2"), *(*i++));
BOOST_REQUIRE_EQUAL(sstring("k3"), *(*i++));
BOOST_REQUIRE_EQUAL(sstring("k4"), *(*i++));
}
{
std::unordered_map<shared_ptr<sstring>, bool,
indirect_hash<shared_ptr<sstring>>, indirect_equal_to<shared_ptr<sstring>>> a_map;
a_map.emplace(make_shared<sstring>("k3"), true);
a_map.emplace(make_shared<sstring>("k1"), true);
a_map.emplace(make_shared<sstring>("k2"), true);
a_map.emplace(make_shared<sstring>("k4"), true);
a_map.emplace(make_shared<sstring>("k0"), true);
BOOST_REQUIRE(a_map.count(make_shared<sstring>("k0")));
BOOST_REQUIRE(a_map.count(make_shared<sstring>("k1")));
BOOST_REQUIRE(a_map.count(make_shared<sstring>("k2")));
BOOST_REQUIRE(a_map.count(make_shared<sstring>("k3")));
BOOST_REQUIRE(a_map.count(make_shared<sstring>("k4")));
BOOST_REQUIRE(!a_map.count(make_shared<sstring>("k5")));
}
}
template<typename T>
void do_test_release() {
auto ptr = make_lw_shared<T>();
BOOST_REQUIRE(!T::destroyed);
auto ptr2 = ptr;
BOOST_REQUIRE(!ptr.release());
BOOST_REQUIRE(!ptr);
BOOST_REQUIRE(ptr2.use_count() == 1);
auto uptr2 = ptr2.release();
BOOST_REQUIRE(uptr2);
BOOST_REQUIRE(!ptr2);
ptr2 = {};
BOOST_REQUIRE(!T::destroyed);
uptr2 = {};
BOOST_REQUIRE(T::destroyed);
// Check destroying via disposer
auto ptr3 = make_lw_shared<T>();
auto uptr3 = ptr3.release();
BOOST_REQUIRE(uptr3);
BOOST_REQUIRE(!T::destroyed);
auto raw_ptr3 = uptr3.release();
lw_shared_ptr<T>::dispose(raw_ptr3);
BOOST_REQUIRE(T::destroyed);
}
BOOST_AUTO_TEST_CASE(test_release) {
do_test_release<A>();
do_test_release<A_esft>();
}
BOOST_AUTO_TEST_CASE(test_const_release) {
do_test_release<const A>();
do_test_release<const A_esft>();
}
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