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// SPDX-License-Identifier: BSD-3-Clause
/* Copyright 2016-2020, Intel Corporation */
/*
* obj_cpp_ptr_arith.cpp -- cpp bindings test
*
*/
#include "unittest.hpp"
#include <libpmemobj++/make_persistent_atomic.hpp>
#include <libpmemobj++/p.hpp>
#include <libpmemobj++/persistent_ptr.hpp>
#include <libpmemobj++/transaction.hpp>
#include <sstream>
#define LAYOUT "cpp"
namespace nvobj = pmem::obj;
namespace
{
const int TEST_ARR_SIZE = 10;
/*
* prepare_array -- preallocate and fill a persistent array
*/
template <typename T>
nvobj::persistent_ptr<T>
prepare_array(nvobj::pool_base &pop)
{
int ret;
nvobj::persistent_ptr<T> parr_vsize;
ret = pmemobj_zalloc(pop.handle(), parr_vsize.raw_ptr(),
sizeof(T) * TEST_ARR_SIZE, 0);
UT_ASSERTeq(ret, 0);
T *parray = parr_vsize.get();
try {
nvobj::transaction::run(pop, [&] {
for (int i = 0; i < TEST_ARR_SIZE; ++i) {
parray[i] = i;
}
});
} catch (...) {
UT_FATAL("Transactional prepare_array aborted");
}
for (int i = 0; i < TEST_ARR_SIZE; ++i) {
UT_ASSERTeq(parray[i], i);
}
return parr_vsize;
}
/*
* test_arith -- test arithmetic operations on persistent pointers
*/
void
test_arith(nvobj::pool_base &pop)
{
auto parr_vsize = prepare_array<nvobj::p<int>>(pop);
/* test prefix postfix operators */
for (int i = 0; i < TEST_ARR_SIZE; ++i) {
UT_ASSERTeq(*parr_vsize, i);
parr_vsize++;
}
for (int i = TEST_ARR_SIZE; i > 0; --i) {
parr_vsize--;
UT_ASSERTeq(*parr_vsize, i - 1);
}
for (int i = 0; i < TEST_ARR_SIZE; ++i) {
UT_ASSERTeq(*parr_vsize, i);
++parr_vsize;
}
for (int i = TEST_ARR_SIZE; i > 0; --i) {
--parr_vsize;
UT_ASSERTeq(*parr_vsize, i - 1);
}
/* test addition assignment and subtraction */
parr_vsize += 2;
UT_ASSERTeq(*parr_vsize, 2);
parr_vsize -= 2;
UT_ASSERTeq(*parr_vsize, 0);
/* test strange invocations, parameter ignored */
parr_vsize.operator++(5);
UT_ASSERTeq(*parr_vsize, 1);
parr_vsize.operator--(2);
UT_ASSERTeq(*parr_vsize, 0);
/* test subtraction and addition */
for (int i = 0; i < TEST_ARR_SIZE; ++i)
UT_ASSERTeq(*(parr_vsize + i), i);
/* using STL one-pas-end style */
auto parr_end = parr_vsize + TEST_ARR_SIZE;
for (int i = TEST_ARR_SIZE; i > 0; --i)
UT_ASSERTeq(*(parr_end - i), TEST_ARR_SIZE - i);
UT_ASSERTeq(parr_end - parr_vsize, TEST_ARR_SIZE);
/* check ostream operator */
std::stringstream stream;
stream << parr_vsize;
UT_OUT("%s", stream.str().c_str());
}
/*
* test_relational -- test relational operators on persistent pointers
*/
void
test_relational(nvobj::pool_base &pop)
{
auto first_elem = prepare_array<nvobj::p<int>>(pop);
nvobj::persistent_ptr<int[10][12]> parray;
auto last_elem = first_elem + TEST_ARR_SIZE - 1;
UT_ASSERT(first_elem != last_elem);
UT_ASSERT(first_elem <= last_elem);
UT_ASSERT(first_elem < last_elem);
UT_ASSERT(last_elem > first_elem);
UT_ASSERT(last_elem >= first_elem);
UT_ASSERT(first_elem == first_elem);
UT_ASSERT(first_elem >= first_elem);
UT_ASSERT(first_elem <= first_elem);
/* nullptr comparisons */
UT_ASSERT(first_elem != nullptr);
UT_ASSERT(nullptr != first_elem);
UT_ASSERT(!(first_elem == nullptr));
UT_ASSERT(!(nullptr == first_elem));
UT_ASSERT(nullptr < first_elem);
UT_ASSERT(!(first_elem < nullptr));
UT_ASSERT(nullptr <= first_elem);
UT_ASSERT(!(first_elem <= nullptr));
UT_ASSERT(first_elem > nullptr);
UT_ASSERT(!(nullptr > first_elem));
UT_ASSERT(first_elem >= nullptr);
UT_ASSERT(!(nullptr >= first_elem));
/* pointer to array */
UT_ASSERT(parray == nullptr);
UT_ASSERT(nullptr == parray);
UT_ASSERT(!(parray != nullptr));
UT_ASSERT(!(nullptr != parray));
UT_ASSERT(!(nullptr < parray));
UT_ASSERT(!(parray < nullptr));
UT_ASSERT(nullptr <= parray);
UT_ASSERT(parray <= nullptr);
UT_ASSERT(!(parray > nullptr));
UT_ASSERT(!(nullptr > parray));
UT_ASSERT(parray >= nullptr);
UT_ASSERT(nullptr >= parray);
auto different_array = prepare_array<nvobj::p<double>>(pop);
/* only verify if this compiles */
UT_ASSERT((first_elem < different_array) || true);
}
}
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_base pop;
try {
pop = nvobj::pool_base::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_arith(pop);
test_relational(pop);
pop.close();
}
int
main(int argc, char *argv[])
{
return run_test([&] { test(argc, argv); });
}
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