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https://git.rwth-aachen.de/acs/public/villas/node/
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99 lines
1.9 KiB
C++
99 lines
1.9 KiB
C++
/* Unit tests for kernel functions.
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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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*/
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#include <unistd.h>
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#include <criterion/criterion.h>
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#include <villas/kernel/kernel.hpp>
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#include <villas/utils.hpp>
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using namespace villas::kernel;
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// cppcheck-suppress unknownMacro
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TestSuite(kernel, .description = "Kernel features");
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#if defined(__x86_64__) || defined(__i386__)
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#define PAGESIZE (1 << 12)
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#define CACHELINESIZE 64
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#if defined(__x86_64__)
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#define HUGEPAGESIZE (1 << 21)
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#elif defined(__i386__)
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#define HUGEPAGESIZE (1 << 22)
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#endif
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#else
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#error "Unsupported architecture"
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#endif
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// This test is not portable, but we currently support x86 only
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Test(kernel, sizes) {
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int sz;
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sz = getPageSize();
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cr_assert_eq(sz, PAGESIZE);
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sz = getHugePageSize();
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cr_assert(sz == HUGEPAGESIZE);
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sz = getCachelineSize();
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cr_assert_eq(sz, CACHELINESIZE);
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}
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#ifdef __linux__
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Test(kernel, hugepages) {
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int ret;
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if (!villas::utils::isPrivileged()) {
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cr_skip("Super-user permissions required.");
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}
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ret = setNrHugepages(25);
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cr_assert_eq(ret, 0);
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ret = getNrHugepages();
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cr_assert_eq(ret, 25);
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ret = setNrHugepages(10);
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cr_assert_eq(ret, 0);
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ret = getNrHugepages();
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cr_assert_eq(ret, 10);
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}
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Test(kernel, version) {
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using villas::utils::Version;
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Version ver = villas::kernel::getVersion();
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Version ver1 = {100, 5};
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Version ver2 = {2, 6};
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cr_assert_lt(ver, ver1);
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cr_assert_gt(ver, ver2);
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}
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Test(kernel, module, .disabled = true) {
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int ret;
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ret = isModuleLoaded("nf_nat");
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cr_assert_eq(ret, 0);
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ret = isModuleLoaded("does_not_exist");
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cr_assert_neq(ret, 0);
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}
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Test(kernel, frequency) {
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int ret;
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uint64_t freq;
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ret = get_cpu_frequency(&freq);
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cr_assert_eq(ret, 0);
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// Check for plausability only
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cr_assert(freq > 1e9 && freq < 5e9);
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}
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#endif
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