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/*
Copyright (C) 2026 Carl Hetherington <cth@carlh.net>
This file is part of DCP-o-matic.
DCP-o-matic is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
DCP-o-matic is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with DCP-o-matic. If not, see <http://www.gnu.org/licenses/>.
*/
#include "lib/memory_util.h"
#include <boost/test/unit_test.hpp>
void check(void* p, int size, uint64_t value)
{
uint8_t* up = reinterpret_cast<uint8_t*>(p);
for (int i = 0; i < size; ++i) {
BOOST_CHECK_EQUAL(*up++, (value >> (i * 8)) & 0xff);
}
}
/** Aligned, multiple of 64 size */
BOOST_AUTO_TEST_CASE(fill_memory_test1)
{
int constexpr size = 256;
auto memory = wrapped_av_malloc(size);
BOOST_REQUIRE_EQUAL(reinterpret_cast<uintptr_t>(memory) % 8, 0);
fill_memory(memory, size, 0x1928374654abdfea);
check(memory, size, 0x1928374654abdfea);
}
/** Aligned, extra bytes at the end */
BOOST_AUTO_TEST_CASE(fill_memory_test2)
{
int constexpr size = 259;
auto memory = wrapped_av_malloc(size);
BOOST_REQUIRE_EQUAL(reinterpret_cast<uintptr_t>(memory) % 8, 0);
fill_memory(memory, size, 0x1928374654abdfea);
check(memory, size, 0x1928374654abdfea);
}
/** Non-aligned, extra bytes at start and end */
BOOST_AUTO_TEST_CASE(fill_memory_test3)
{
int constexpr size = 265;
auto memory = wrapped_av_malloc(size + 512);
BOOST_REQUIRE_EQUAL(reinterpret_cast<uintptr_t>(memory) % 8, 0);
memory = reinterpret_cast<void*>(reinterpret_cast<uintptr_t>(memory) + 3);
fill_memory(memory, size, 0x1928374654abdfea);
check(memory, size, 0x1928374654abdfea);
}
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