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VILLASnode/tests/unit/memory.cpp

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/* Unit tests for memory management.
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*
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* Author: Steffen Vogel <post@steffenvogel.de>
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* SPDX-FileCopyrightText: 2014-2023 Institute for Automation of Complex Power Systems, RWTH Aachen University
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* SPDX-License-Identifier: Apache-2.0
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*/
#include <criterion/criterion.h>
#include <criterion/theories.h>
#include <cerrno>
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#include <villas/log.hpp>
#include <villas/node/memory.hpp>
#include <villas/utils.hpp>
using namespace villas;
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using namespace villas::node;
extern void init_memory();
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#define PAGESIZE (1 << 12)
#define HUGEPAGESIZE (1 << 21)
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TheoryDataPoints(memory, aligned) = {
DataPoints(size_t, 1, 32, 55, 1 << 10, PAGESIZE, HUGEPAGESIZE),
DataPoints(size_t, 1, 8, PAGESIZE, PAGESIZE),
DataPoints(struct memory::Type *, &memory::heap, &memory::mmap_hugetlb,
&memory::mmap_hugetlb)};
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// cppcheck-suppress unknownMacro
Theory((size_t len, size_t align, struct memory::Type *mt), memory, aligned,
.init = init_memory) {
int ret;
void *ptr;
if (!utils::isPrivileged() && mt == &memory::mmap_hugetlb)
cr_skip_test("Skipping memory_mmap_hugetlb tests allocatpr because we are "
"running in an unprivileged environment.");
ptr = memory::alloc_aligned(len, align, mt);
cr_assert_not_null(ptr, "Failed to allocate memory");
cr_assert(IS_ALIGNED(ptr, align),
"Memory at %p is not alligned to %#zx byte bounary", ptr, align);
if (mt == &memory::mmap_hugetlb) {
cr_assert(IS_ALIGNED(ptr, HUGEPAGESIZE),
"Memory at %p is not alligned to %#x byte bounary", ptr,
HUGEPAGESIZE);
}
ret = memory::free(ptr);
cr_assert_eq(ret, 0, "Failed to release memory: ret=%d, ptr=%p, len=%zu: %s",
ret, ptr, len, strerror(errno));
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}
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Test(memory, manager, .init = init_memory) {
size_t total_size;
size_t max_block;
int ret;
void *p, *p1, *p2, *p3;
struct memory::Type *m;
total_size = 1 << 10;
max_block =
total_size - sizeof(struct memory::Type) - sizeof(struct memory::Block);
p = memory::alloc(total_size, &memory::heap);
cr_assert_not_null(p);
m = memory::managed(p, total_size);
cr_assert_not_null(m);
p1 = memory::alloc(16, m);
cr_assert_not_null(p1);
p2 = memory::alloc(32, m);
cr_assert_not_null(p2);
ret = memory::free(p1);
cr_assert(ret == 0);
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p1 = memory::alloc_aligned(128, 128, m);
cr_assert_not_null(p1);
cr_assert(IS_ALIGNED(p1, 128));
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p3 = memory::alloc_aligned(128, 256, m);
cr_assert(p3);
cr_assert(IS_ALIGNED(p3, 256));
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ret = memory::free(p2);
cr_assert(ret == 0);
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ret = memory::free(p1);
cr_assert(ret == 0);
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ret = memory::free(p3);
cr_assert(ret == 0);
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p1 = memory::alloc(max_block, m);
cr_assert_not_null(p1);
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ret = memory::free(p1);
cr_assert(ret == 0);
ret = memory::free(p);
cr_assert(ret == 0);
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}