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uninitialized_default_constructn.cpp
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uninitialized_default_constructn.cpp
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// Copyright (c) 2014-2017 Hartmut Kaiser
//
// SPDX-License-Identifier: BSL-1.0
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
#include <hpx/local/init.hpp>
#include <hpx/modules/testing.hpp>
#include <hpx/parallel/algorithms/uninitialized_default_construct.hpp>
#include <atomic>
#include <cstddef>
#include <cstdint>
#include <cstring>
#include <iostream>
#include <numeric>
#include <string>
#include <vector>
#include "test_utils.hpp"
struct default_constructable
{
default_constructable()
: value_(42)
{
}
std::int32_t value_;
};
struct value_constructable
{
std::int32_t value_;
};
std::size_t const data_size = 10007;
////////////////////////////////////////////////////////////////////////////
template <typename ExPolicy, typename IteratorTag>
void test_uninitialized_default_construct_n(ExPolicy policy, IteratorTag)
{
static_assert(hpx::is_execution_policy<ExPolicy>::value,
"hpx::is_execution_policy<ExPolicy>::value");
typedef default_constructable* base_iterator;
typedef test::test_iterator<base_iterator, IteratorTag> iterator;
default_constructable* p = (default_constructable*) std::malloc(
data_size * sizeof(default_constructable));
std::memset(
static_cast<void*>(p), 0xcd, data_size * sizeof(default_constructable));
hpx::uninitialized_default_construct_n(policy, iterator(p), data_size);
std::size_t count = 0;
std::for_each(p, p + data_size, [&count](default_constructable v1) {
HPX_TEST_EQ(v1.value_, 42);
++count;
});
HPX_TEST_EQ(count, data_size);
std::free(p);
}
template <typename ExPolicy, typename IteratorTag>
void test_uninitialized_default_construct_n_async(ExPolicy policy, IteratorTag)
{
typedef default_constructable* base_iterator;
typedef test::test_iterator<base_iterator, IteratorTag> iterator;
default_constructable* p = (default_constructable*) std::malloc(
data_size * sizeof(default_constructable));
std::memset(
static_cast<void*>(p), 0xcd, data_size * sizeof(default_constructable));
auto f =
hpx::uninitialized_default_construct_n(policy, iterator(p), data_size);
f.wait();
std::size_t count = 0;
std::for_each(p, p + data_size, [&count](default_constructable v1) {
HPX_TEST_EQ(v1.value_, 42);
++count;
});
HPX_TEST_EQ(count, data_size);
std::free(p);
}
template <typename ExPolicy, typename IteratorTag>
void test_uninitialized_default_construct_n2(ExPolicy policy, IteratorTag)
{
static_assert(hpx::is_execution_policy<ExPolicy>::value,
"hpx::is_execution_policy<ExPolicy>::value");
typedef value_constructable* base_iterator;
typedef test::test_iterator<base_iterator, IteratorTag> iterator;
value_constructable* p = (value_constructable*) std::malloc(
data_size * sizeof(value_constructable));
std::memset(
static_cast<void*>(p), 0xcd, data_size * sizeof(value_constructable));
hpx::uninitialized_default_construct_n(policy, iterator(p), data_size);
std::size_t count = 0;
std::for_each(p, p + data_size, [&count](value_constructable v1) {
HPX_TEST_EQ(v1.value_, (std::int32_t) 0xcdcdcdcd);
++count;
});
HPX_TEST_EQ(count, data_size);
std::free(p);
}
template <typename ExPolicy, typename IteratorTag>
void test_uninitialized_default_construct_n_async2(ExPolicy policy, IteratorTag)
{
typedef value_constructable* base_iterator;
typedef test::test_iterator<base_iterator, IteratorTag> iterator;
value_constructable* p = (value_constructable*) std::malloc(
data_size * sizeof(value_constructable));
std::memset(
static_cast<void*>(p), 0xcd, data_size * sizeof(value_constructable));
auto f =
hpx::uninitialized_default_construct_n(policy, iterator(p), data_size);
f.wait();
std::size_t count = 0;
std::for_each(p, p + data_size, [&count](value_constructable v1) {
HPX_TEST_EQ(v1.value_, (std::int32_t) 0xcdcdcdcd);
++count;
});
HPX_TEST_EQ(count, data_size);
std::free(p);
}
template <typename IteratorTag>
void test_uninitialized_default_construct_n()
{
using namespace hpx::execution;
test_uninitialized_default_construct_n(seq, IteratorTag());
test_uninitialized_default_construct_n(par, IteratorTag());
test_uninitialized_default_construct_n(par_unseq, IteratorTag());
test_uninitialized_default_construct_n_async(seq(task), IteratorTag());
test_uninitialized_default_construct_n_async(par(task), IteratorTag());
test_uninitialized_default_construct_n2(seq, IteratorTag());
test_uninitialized_default_construct_n2(par, IteratorTag());
test_uninitialized_default_construct_n2(par_unseq, IteratorTag());
test_uninitialized_default_construct_n_async(seq(task), IteratorTag());
test_uninitialized_default_construct_n_async2(par(task), IteratorTag());
}
void uninitialized_default_construct_n_test()
{
test_uninitialized_default_construct_n<std::random_access_iterator_tag>();
test_uninitialized_default_construct_n<std::forward_iterator_tag>();
}
///////////////////////////////////////////////////////////////////////////////
template <typename ExPolicy, typename IteratorTag>
void test_uninitialized_default_construct_n_exception(
ExPolicy policy, IteratorTag)
{
static_assert(hpx::is_execution_policy<ExPolicy>::value,
"hpx::is_execution_policy<ExPolicy>::value");
typedef test::count_instances_v<default_constructable> data_type;
typedef data_type* base_iterator;
typedef test::decorated_iterator<base_iterator, IteratorTag>
decorated_iterator;
data_type* p = (data_type*) std::malloc(data_size * sizeof(data_type));
std::memset(static_cast<void*>(p), 0xcd, data_size * sizeof(data_type));
std::atomic<std::size_t> throw_after(std::rand() % data_size); //-V104
std::size_t throw_after_ = throw_after.load();
data_type::instance_count.store(0);
data_type::max_instance_count.store(0);
bool caught_exception = false;
try
{
hpx::uninitialized_default_construct_n(policy,
decorated_iterator(p,
[&throw_after]() {
if (throw_after-- == 0)
throw std::runtime_error("test");
}),
data_size);
HPX_TEST(false);
}
catch (hpx::exception_list const& e)
{
caught_exception = true;
test::test_num_exceptions<ExPolicy, IteratorTag>::call(policy, e);
}
catch (...)
{
HPX_TEST(false);
}
HPX_TEST(caught_exception);
HPX_TEST_EQ(test::count_instances::instance_count.load(), std::size_t(0));
HPX_TEST_LTE(throw_after_, data_type::max_instance_count.load());
std::free(p);
}
template <typename ExPolicy, typename IteratorTag>
void test_uninitialized_default_construct_n_exception_async(
ExPolicy policy, IteratorTag)
{
typedef test::count_instances_v<default_constructable> data_type;
typedef data_type* base_iterator;
typedef test::decorated_iterator<base_iterator, IteratorTag>
decorated_iterator;
data_type* p = (data_type*) std::malloc(data_size * sizeof(data_type));
std::memset(static_cast<void*>(p), 0xcd, data_size * sizeof(data_type));
std::atomic<std::size_t> throw_after(std::rand() % data_size); //-V104
std::size_t throw_after_ = throw_after.load();
data_type::instance_count.store(0);
data_type::max_instance_count.store(0);
bool caught_exception = false;
bool returned_from_algorithm = false;
try
{
auto f = hpx::uninitialized_default_construct_n(policy,
decorated_iterator(p,
[&throw_after]() {
if (throw_after-- == 0)
throw std::runtime_error("test");
}),
data_size);
returned_from_algorithm = true;
f.get();
HPX_TEST(false);
}
catch (hpx::exception_list const& e)
{
caught_exception = true;
test::test_num_exceptions<ExPolicy, IteratorTag>::call(policy, e);
}
catch (...)
{
HPX_TEST(false);
}
HPX_TEST(caught_exception);
HPX_TEST(returned_from_algorithm);
HPX_TEST_EQ(test::count_instances::instance_count.load(), std::size_t(0));
HPX_TEST_LTE(throw_after_, data_type::max_instance_count.load());
std::free(p);
}
template <typename IteratorTag>
void test_uninitialized_default_construct_n_exception()
{
using namespace hpx::execution;
// If the execution policy object is of type vector_execution_policy,
// std::terminate shall be called. therefore we do not test exceptions
// with a vector execution policy
test_uninitialized_default_construct_n_exception(seq, IteratorTag());
test_uninitialized_default_construct_n_exception(par, IteratorTag());
test_uninitialized_default_construct_n_exception_async(
seq(task), IteratorTag());
test_uninitialized_default_construct_n_exception_async(
par(task), IteratorTag());
}
void uninitialized_default_construct_n_exception_test()
{
test_uninitialized_default_construct_n_exception<
std::random_access_iterator_tag>();
test_uninitialized_default_construct_n_exception<
std::forward_iterator_tag>();
}
////////////////////////////////////////////////////////////////////////////////
template <typename ExPolicy, typename IteratorTag>
void test_uninitialized_default_construct_n_bad_alloc(
ExPolicy policy, IteratorTag)
{
static_assert(hpx::is_execution_policy<ExPolicy>::value,
"hpx::is_execution_policy<ExPolicy>::value");
typedef test::count_instances_v<default_constructable> data_type;
typedef data_type* base_iterator;
typedef test::decorated_iterator<base_iterator, IteratorTag>
decorated_iterator;
data_type* p = (data_type*) std::malloc(data_size * sizeof(data_type));
std::memset(static_cast<void*>(p), 0xcd, data_size * sizeof(data_type));
std::atomic<std::size_t> throw_after(std::rand() % data_size); //-V104
std::size_t throw_after_ = throw_after.load();
data_type::instance_count.store(0);
data_type::max_instance_count.store(0);
bool caught_bad_alloc = false;
try
{
hpx::uninitialized_default_construct_n(policy,
decorated_iterator(p,
[&throw_after]() {
if (throw_after-- == 0)
throw std::bad_alloc();
}),
data_size);
HPX_TEST(false);
}
catch (std::bad_alloc const&)
{
caught_bad_alloc = true;
}
catch (...)
{
HPX_TEST(false);
}
HPX_TEST(caught_bad_alloc);
HPX_TEST_EQ(test::count_instances::instance_count.load(), std::size_t(0));
HPX_TEST_LTE(throw_after_, data_type::max_instance_count.load());
std::free(p);
}
template <typename ExPolicy, typename IteratorTag>
void test_uninitialized_default_construct_n_bad_alloc_async(
ExPolicy policy, IteratorTag)
{
typedef test::count_instances_v<default_constructable> data_type;
typedef data_type* base_iterator;
typedef test::decorated_iterator<base_iterator, IteratorTag>
decorated_iterator;
data_type* p = (data_type*) std::malloc(data_size * sizeof(data_type));
std::memset(static_cast<void*>(p), 0xcd, data_size * sizeof(data_type));
std::atomic<std::size_t> throw_after(std::rand() % data_size); //-V104
std::size_t throw_after_ = throw_after.load();
data_type::instance_count.store(0);
data_type::max_instance_count.store(0);
bool caught_bad_alloc = false;
bool returned_from_algorithm = false;
try
{
auto f = hpx::uninitialized_default_construct_n(policy,
decorated_iterator(p,
[&throw_after]() {
if (throw_after-- == 0)
throw std::bad_alloc();
}),
data_size);
returned_from_algorithm = true;
f.get();
HPX_TEST(false);
}
catch (std::bad_alloc const&)
{
caught_bad_alloc = true;
}
catch (...)
{
HPX_TEST(false);
}
HPX_TEST(caught_bad_alloc);
HPX_TEST(returned_from_algorithm);
HPX_TEST_EQ(test::count_instances::instance_count.load(), std::size_t(0));
HPX_TEST_LTE(throw_after_, data_type::max_instance_count.load());
std::free(p);
}
template <typename IteratorTag>
void test_uninitialized_default_construct_n_bad_alloc()
{
using namespace hpx::execution;
// If the execution policy object is of type vector_execution_policy,
// std::terminate shall be called. therefore we do not test exceptions
// with a vector execution policy
test_uninitialized_default_construct_n_bad_alloc(seq, IteratorTag());
test_uninitialized_default_construct_n_bad_alloc(par, IteratorTag());
test_uninitialized_default_construct_n_bad_alloc_async(
seq(task), IteratorTag());
test_uninitialized_default_construct_n_bad_alloc_async(
par(task), IteratorTag());
}
void uninitialized_default_construct_n_bad_alloc_test()
{
test_uninitialized_default_construct_n_bad_alloc<
std::random_access_iterator_tag>();
test_uninitialized_default_construct_n_bad_alloc<
std::forward_iterator_tag>();
}
int hpx_main(hpx::program_options::variables_map& vm)
{
unsigned int seed = (unsigned int) std::time(nullptr);
if (vm.count("seed"))
seed = vm["seed"].as<unsigned int>();
std::cout << "using seed: " << seed << std::endl;
std::srand(seed);
uninitialized_default_construct_n_test();
uninitialized_default_construct_n_exception_test();
uninitialized_default_construct_n_bad_alloc_test();
return hpx::local::finalize();
}
int main(int argc, char* argv[])
{
// add command line option which controls the random number generator seed
using namespace hpx::program_options;
options_description desc_commandline(
"Usage: " HPX_APPLICATION_STRING " [options]");
desc_commandline.add_options()("seed,s", value<unsigned int>(),
"the random number generator seed to use for this run");
// By default this test should run on all available cores
std::vector<std::string> const cfg = {"hpx.os_threads=all"};
// Initialize and run HPX
hpx::local::init_params init_args;
init_args.desc_cmdline = desc_commandline;
init_args.cfg = cfg;
HPX_TEST_EQ_MSG(hpx::local::init(hpx_main, argc, argv, init_args), 0,
"HPX main exited with non-zero status");
return hpx::util::report_errors();
}