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// SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2020, Intel Corporation */
/*
* obj_cpp_ptr.c -- cpp bindings test
*
*/
#include "ptr.hpp"
#include "unittest.hpp"
#include <libpmemobj++/experimental/self_relative_ptr.hpp>
#include <libpmemobj++/make_persistent.hpp>
#include <libpmemobj++/make_persistent_array_atomic.hpp>
#include <libpmemobj++/make_persistent_atomic.hpp>
#include <libpmemobj++/p.hpp>
#include <libpmemobj++/pool.hpp>
#include <libpmemobj++/transaction.hpp>
#include <sstream>
#define LAYOUT "cpp"
template <typename T>
using self_relative_ptr = nvobj::experimental::self_relative_ptr<T>;
using self_relative_ptr_base = nvobj::experimental::self_relative_ptr_base;
namespace
{
using root = templated_root<self_relative_ptr, self_relative_ptr_base>;
/*
* test_offset -- test offset calculation within a hierarchy
*/
void
test_offset(nvobj::pool<root> &pop)
{
struct A {
uint64_t a;
};
struct B {
uint64_t b;
};
struct C : public A, public B {
uint64_t c;
};
try {
nvobj::transaction::run(pop, [] {
auto distance =
self_relative_ptr_base::distance_between;
self_relative_ptr<C> cptr = nvobj::make_persistent<C>();
self_relative_ptr<B> bptr = cptr;
UT_ASSERT(distance(cptr, bptr) > 0);
UT_ASSERT(static_cast<std::size_t>(
distance(cptr, bptr)) == sizeof(A));
self_relative_ptr<B> bptr2;
bptr2 = cptr;
UT_ASSERT(distance(cptr, bptr2) > 0);
UT_ASSERT(static_cast<std::size_t>(
distance(cptr, bptr2)) == sizeof(A));
self_relative_ptr<B> bptr3 =
static_cast<self_relative_ptr<B>>(cptr);
UT_ASSERT(distance(cptr, bptr3) > 0);
UT_ASSERT(static_cast<std::size_t>(
distance(cptr, bptr3)) == sizeof(A));
nvobj::delete_persistent<C>(cptr);
});
} catch (...) {
UT_ASSERT(0);
}
}
void
test_base_ptr_casting(nvobj::pool<root> &pop)
{
auto r = pop.root();
try {
nvobj::transaction::run(pop, [&] {
r->arr[0] = self_relative_ptr<foo>{
nvobj::make_persistent<foo>()};
r->arr[1] = self_relative_ptr<int>{
nvobj::make_persistent<int>(TEST_INT)};
r->arr[2] = nullptr;
UT_ASSERTne(r->arr[0].to_void_pointer(), nullptr);
UT_ASSERTeq(*static_cast<int *>(
r->arr[1].to_void_pointer()),
TEST_INT);
UT_ASSERTeq(r->arr[2].to_void_pointer(), nullptr);
self_relative_ptr<foo> tmp0 =
static_cast<foo *>(r->arr[0].to_void_pointer());
self_relative_ptr<int> tmp1 =
static_cast<int *>(r->arr[1].to_void_pointer());
self_relative_ptr<foo> tmp2 =
static_cast<foo *>(r->arr[2].to_void_pointer());
nvobj::delete_persistent<foo>(tmp0);
nvobj::delete_persistent<int>(tmp1);
nvobj::delete_persistent<foo>(tmp2);
});
} catch (...) {
UT_ASSERT(0);
}
}
void
test_base_ptr_assignment()
{
int tmp;
self_relative_ptr_base ptr1 = &tmp;
self_relative_ptr_base ptr2 = nullptr;
ptr1 = ptr2;
UT_ASSERT(ptr1.to_void_pointer() == nullptr);
UT_ASSERT(ptr2.to_void_pointer() == nullptr);
}
} /* namespace */
static void
test(int argc, char *argv[])
{
if (argc != 2)
UT_FATAL("usage: %s file-name", argv[0]);
const char *path = argv[1];
nvobj::pool<root> pop;
try {
pop = nvobj::pool<root>::create(path, LAYOUT, PMEMOBJ_MIN_POOL,
S_IWUSR | S_IRUSR);
} catch (pmem::pool_error &pe) {
UT_FATAL("!pool::create: %s %s", pe.what(), path);
}
test_root_pointers<self_relative_ptr, self_relative_ptr_base>(
*pop.root());
test_ptr_operators_null<self_relative_ptr>();
test_ptr_transactional(pop);
test_ptr_array(pop);
test_offset(pop);
test_base_ptr_casting(pop);
test_base_ptr_assignment();
pop.close();
}
int
main(int argc, char *argv[])
{
return run_test([&] { test(argc, argv); });
}
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