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// ==========================================================================
// SeqAn - The Library for Sequence Analysis
// ==========================================================================
// Copyright (c) 2006-2026, Knut Reinert, FU Berlin
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// * Neither the name of Knut Reinert or the FU Berlin nor the names of
// its contributors may be used to endorse or promote products derived
// from this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
// AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
// ARE DISCLAIMED. IN NO EVENT SHALL KNUT REINERT OR THE FU BERLIN BE LIABLE
// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
// SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
// CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
// DAMAGE.
//
// ==========================================================================
// Author: Rene Rahn <rene.rahn@fu-berlin.de>
// ==========================================================================
#include <seqan/parallel.h>
#if defined(__SANITIZE_THREAD__)
# define SEQAN_IS_NOT_TSAN 0
#elif defined(__has_feature)
# if __has_feature(thread_sanitizer)
# define SEQAN_IS_NOT_TSAN 0
# endif
#else
# define SEQAN_IS_NOT_TSAN 1
#endif
SEQAN_DEFINE_TEST(test_parallel_thread_pool_construct)
{
using namespace seqan2;
// We need to be able to construct a thread pool.
SEQAN_ASSERT(std::is_default_constructible<ThreadPool>::value);
SEQAN_ASSERT(!std::is_copy_constructible<ThreadPool>::value);
SEQAN_ASSERT(!std::is_move_constructible<ThreadPool>::value);
SEQAN_ASSERT(!std::is_copy_assignable<ThreadPool>::value);
SEQAN_ASSERT(!std::is_move_assignable<ThreadPool>::value);
}
SEQAN_DEFINE_TEST(test_parallel_thread_pool_spawn)
{
using namespace seqan2;
// We need to be able to construct a thread pool
ThreadPool pool;
bool res = false;
auto masterId = std::this_thread::get_id();
spawn(pool, [=, &res]()
{
auto id = std::this_thread::get_id();
res = id != masterId;
});
join(pool);
SEQAN_ASSERT(res);
}
SEQAN_DEFINE_TEST(test_parallel_thread_pool_join)
{
using namespace seqan2;
ThreadPool pool;
std::vector<int> res(2);
for (unsigned i = 0; i < res.size(); ++i)
{
auto f = [=, &res]
{
std::this_thread::sleep_for(std::chrono::seconds(i));
res[i] = i + 1;
};
spawn(pool, f);
}
#if SEQAN_IS_NOT_TSAN
SEQAN_ASSERT_NOT(std::accumulate(std::begin(res), std::end(res), 0, std::plus<int>()) == 3);
#endif
join(pool);
SEQAN_ASSERT(std::accumulate(std::begin(res), std::end(res), 0, std::plus<int>()) == 3);
}
SEQAN_DEFINE_TEST(test_parallel_thread_pool_destruct)
{
using namespace seqan2;
{ // Destructor.
void* buffer = malloc(sizeof(ThreadPool));
ThreadPool* poolPtr = new(buffer) ThreadPool();
bool res = false;
auto f = [&res]()
{
std::this_thread::sleep_for(std::chrono::seconds(1));
res = true;
};
spawn(*poolPtr, f);
#if SEQAN_IS_NOT_TSAN
SEQAN_ASSERT_NOT(res);
#endif
try
{
poolPtr->~ThreadPool();
}
catch(...)
{
SEQAN_ASSERT_FAIL("Could not savely destruct thread pool!");
}
SEQAN_ASSERT(res);
free(buffer);
}
{ // Destructor after join
void* buffer = malloc(sizeof(ThreadPool));
ThreadPool* poolPtr = new(buffer) ThreadPool();
bool res = false;
auto f = [&res]()
{
std::this_thread::sleep_for(std::chrono::seconds(1));
res = true;
};
spawn(*poolPtr, f);
#if SEQAN_IS_NOT_TSAN
SEQAN_ASSERT_NOT(res);
#endif
join(*poolPtr);
SEQAN_ASSERT(res);
try
{
poolPtr->~ThreadPool();
}
catch(...)
{
SEQAN_ASSERT_FAIL("Could not savely destruct thread pool!");
}
SEQAN_ASSERT(res);
free(buffer);
}
}
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