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/*
* (C) Copyright 1996- ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
* In applying this licence, ECMWF does not waive the privileges and immunities
* granted to it by virtue of its status as an intergovernmental organisation nor
* does it submit to any jurisdiction.
*/
#define ECKIT_NO_DEPRECATION_WARNINGS
#include <cmath>
#include <set>
#include "eckit/log/Log.h"
#include "eckit/memory/Owned.h"
#include "eckit/memory/SharedPtr.h"
#include "eckit/runtime/Tool.h"
#include "eckit/testing/Test.h"
using namespace std;
using namespace eckit;
using namespace eckit::testing;
#ifdef __clang__
#pragma clang diagnostic ignored "-Wself-assign-overloaded"
#endif
namespace eckit::test {
//----------------------------------------------------------------------------------------------------------------------
class Incomplete;
Incomplete* get_ptr(eckit::SharedPtr<Incomplete>& incomplete) {
return incomplete.get();
}
template <class T>
void ck(const T* v1, T v2) {
EXPECT(*v1 == v2);
}
namespace {
int UDT_use_count; // independent of pointer maintained counts
}
//----------------------------------------------------------------------------------------------------------------------
// user defined type
class UDT : public OwnedNoLock {
public:
typedef SharedPtr<UDT> ptype;
UDT(long in) : value_(in) { ++UDT_use_count; }
~UDT() {
--UDT_use_count;
// std::cout << " UDT with value " << value_ << " being destroyed\n";
}
long value() const { return value_; }
void value(long v) {
value_ = v;
;
}
private:
long value_;
};
//----------------------------------------------------------------------------------------------------------------------
// tests on incomplete types
// Certain smart pointer operations are specified to work on incomplete types,
// and some uses depend upon this feature. These tests verify compilation
// only - the functions aren't actually invoked.
class Incomplete;
Incomplete* check_incomplete(eckit::SharedPtr<Incomplete>& incomplete, eckit::SharedPtr<Incomplete>& i2) {
incomplete.swap(i2);
// std::cout << incomplete.use_count() << ' ' << incomplete.unique() << '\n';
return incomplete.get();
}
//----------------------------------------------------------------------------------------------------------------------
template <typename T>
eckit::SharedPtr<T> add_another_shareptr(T* p) {
return eckit::SharedPtr<T>(p);
}
//----------------------------------------------------------------------------------------------------------------------
// TODO issues:
// o/ test shared ptr, in STL containers
// o/ <Not applicable> weak shared ptr
// o/ <Not applicable> enable_shared_from_this/ not required
// o/ <Not applicable> custom deletor
// o/ <Not applicable> ? static pointer cast
//
// eckit::SharedPtr has null() member function, this does not exist on the standard/boost
//----------------------------------------------------------------------------------------------------------------------
CASE("test_intrusive_shared_ptr") {
// std::cout << "test SharedPtr with a user defined type\n";
{
UDT_use_count = 0;
UDT* up = new UDT(0);
EXPECT(up->value() == 0);
eckit::SharedPtr<UDT> sup1(up);
EXPECT(up == sup1.get());
EXPECT(sup1.use_count() == 1);
EXPECT(sup1.unique());
sup1->value(54321);
EXPECT(sup1->value() == 54321);
EXPECT(up->value() == 54321);
eckit::SharedPtr<UDT> sup2;
sup2 = sup1;
EXPECT(sup2->value() == 54321);
EXPECT(sup1.use_count() == 2);
EXPECT(sup2.use_count() == 2);
EXPECT(!sup2.unique());
EXPECT(!sup1.unique());
// cout << "eckit::SharedPtr check self assignment\n";
sup2 = sup2;
EXPECT(sup2->value() == 54321);
EXPECT(sup1.use_count() == 2);
EXPECT(sup2.use_count() == 2);
// check return creates from function
eckit::SharedPtr<UDT> sup3 = add_another_shareptr(up);
EXPECT(sup3->value() == 54321);
EXPECT(sup1.use_count() == 3);
EXPECT(sup2.use_count() == 3);
EXPECT(sup3.use_count() == 3);
}
EXPECT(UDT_use_count == 0);
{
// std::cout << "test SharedPtr swap\n";
eckit::SharedPtr<UDT> sup1(new UDT(0));
EXPECT(sup1.get() != 0);
EXPECT(sup1.use_count() == 1);
EXPECT(sup1.unique());
eckit::SharedPtr<UDT> sup2;
EXPECT(sup2.use_count() == 0);
EXPECT(sup2.get() == 0);
sup1.swap(sup2);
EXPECT(sup2.get() != 0);
EXPECT(sup2.use_count() == 1);
EXPECT(sup2.unique());
EXPECT(sup1.use_count() == 0);
EXPECT(sup1.get() == 0);
}
EXPECT(UDT_use_count == 0);
// std::cout << "test SharedPtr with a user defined type in std::vector\n";
{
std::vector<eckit::SharedPtr<UDT> > vec;
vec.push_back(eckit::SharedPtr<UDT>(new UDT(0)));
vec.push_back(eckit::SharedPtr<UDT>(new UDT(1)));
vec.push_back(eckit::SharedPtr<UDT>(new UDT(2)));
}
EXPECT(UDT_use_count == 0);
// std::cout << "test SharedPtr with a user defined type in std::set\n";
{
std::set<eckit::SharedPtr<UDT> > vec;
vec.insert(eckit::SharedPtr<UDT>(new UDT(0)));
vec.insert(eckit::SharedPtr<UDT>(new UDT(1)));
vec.insert(eckit::SharedPtr<UDT>(new UDT(3)));
}
EXPECT(UDT_use_count == 0);
// std::cout << "test SharedPtr with a user defined type in std::map\n";
{
std::map<std::string, eckit::SharedPtr<UDT> > map;
map.insert(std::make_pair(std::string("first"), eckit::SharedPtr<UDT>(new UDT(0))));
map.insert(std::make_pair(std::string("secon"), eckit::SharedPtr<UDT>(new UDT(1))));
map.insert(std::make_pair(std::string("third"), eckit::SharedPtr<UDT>(new UDT(2))));
}
EXPECT(UDT_use_count == 0);
}
//----------------------------------------------------------------------------------------------------------------------
} // namespace eckit::test
int main(int argc, char** argv) {
return run_tests(argc, argv);
}
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