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Diffstat (limited to 'src/test/test-cgroup-mask.c')
| -rw-r--r-- | src/test/test-cgroup-mask.c | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/src/test/test-cgroup-mask.c b/src/test/test-cgroup-mask.c new file mode 100644 index 0000000..7f6c0c2 --- /dev/null +++ b/src/test/test-cgroup-mask.c @@ -0,0 +1,157 @@ +/* SPDX-License-Identifier: LGPL-2.1+ */ + +#include <stdio.h> + +#include "cgroup.h" +#include "cgroup-util.h" +#include "macro.h" +#include "manager.h" +#include "rm-rf.h" +#include "string-util.h" +#include "test-helper.h" +#include "tests.h" +#include "unit.h" + +#define ASSERT_CGROUP_MASK(got, expected) \ + log_cgroup_mask(got, expected); \ + assert_se(got == expected) + +#define ASSERT_CGROUP_MASK_JOINED(got, expected) ASSERT_CGROUP_MASK(got, CGROUP_MASK_EXTEND_JOINED(expected)) + +static void log_cgroup_mask(CGroupMask got, CGroupMask expected) { + _cleanup_free_ char *e_store = NULL, *g_store = NULL; + + assert_se(cg_mask_to_string(expected, &e_store) >= 0); + log_info("Expected mask: %s\n", e_store); + assert_se(cg_mask_to_string(got, &g_store) >= 0); + log_info("Got mask: %s\n", g_store); +} + +static int test_cgroup_mask(void) { + _cleanup_(rm_rf_physical_and_freep) char *runtime_dir = NULL; + _cleanup_(manager_freep) Manager *m = NULL; + Unit *son, *daughter, *parent, *root, *grandchild, *parent_deep, *nomem_parent, *nomem_leaf; + int r; + CGroupMask cpu_accounting_mask = get_cpu_accounting_mask(); + + r = enter_cgroup_subroot(); + if (r == -ENOMEDIUM) + return log_tests_skipped("cgroupfs not available"); + + /* Prepare the manager. */ + assert_se(set_unit_path(get_testdata_dir()) >= 0); + assert_se(runtime_dir = setup_fake_runtime_dir()); + r = manager_new(UNIT_FILE_USER, MANAGER_TEST_RUN_BASIC, &m); + if (IN_SET(r, -EPERM, -EACCES)) { + log_error_errno(r, "manager_new: %m"); + return log_tests_skipped("cannot create manager"); + } + + assert_se(r >= 0); + + /* Turn off all kinds of default accouning, so that we can + * verify the masks resulting of our configuration and nothing + * else. */ + m->default_cpu_accounting = + m->default_memory_accounting = + m->default_blockio_accounting = + m->default_io_accounting = + m->default_tasks_accounting = false; + m->default_tasks_max = (uint64_t) -1; + + assert_se(r >= 0); + assert_se(manager_startup(m, NULL, NULL) >= 0); + + /* Load units and verify hierarchy. */ + assert_se(manager_load_startable_unit_or_warn(m, "parent.slice", NULL, &parent) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "son.service", NULL, &son) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "daughter.service", NULL, &daughter) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "grandchild.service", NULL, &grandchild) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "parent-deep.slice", NULL, &parent_deep) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "nomem.slice", NULL, &nomem_parent) >= 0); + assert_se(manager_load_startable_unit_or_warn(m, "nomemleaf.service", NULL, &nomem_leaf) >= 0); + assert_se(UNIT_DEREF(son->slice) == parent); + assert_se(UNIT_DEREF(daughter->slice) == parent); + assert_se(UNIT_DEREF(parent_deep->slice) == parent); + assert_se(UNIT_DEREF(grandchild->slice) == parent_deep); + assert_se(UNIT_DEREF(nomem_leaf->slice) == nomem_parent); + root = UNIT_DEREF(parent->slice); + assert_se(UNIT_DEREF(nomem_parent->slice) == root); + + /* Verify per-unit cgroups settings. */ + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(son), CGROUP_MASK_CPU); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(daughter), cpu_accounting_mask); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(grandchild), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(parent_deep), CGROUP_MASK_MEMORY); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(parent), (CGROUP_MASK_IO | CGROUP_MASK_BLKIO)); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(nomem_parent), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(nomem_leaf), (CGROUP_MASK_IO | CGROUP_MASK_BLKIO)); + ASSERT_CGROUP_MASK_JOINED(unit_get_own_mask(root), 0); + + /* Verify aggregation of member masks */ + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(son), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(daughter), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(grandchild), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(parent_deep), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(parent), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(nomem_parent), (CGROUP_MASK_IO | CGROUP_MASK_BLKIO)); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(nomem_leaf), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_members_mask(root), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + + /* Verify aggregation of sibling masks. */ + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(son), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(daughter), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(grandchild), 0); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(parent_deep), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(parent), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(nomem_parent), (CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(nomem_leaf), (CGROUP_MASK_IO | CGROUP_MASK_BLKIO)); + ASSERT_CGROUP_MASK_JOINED(unit_get_siblings_mask(root), (CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY)); + + /* Verify aggregation of target masks. */ + ASSERT_CGROUP_MASK(unit_get_target_mask(son), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(daughter), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(grandchild), 0); + ASSERT_CGROUP_MASK(unit_get_target_mask(parent_deep), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(parent), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(nomem_parent), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | CGROUP_MASK_CPUACCT | CGROUP_MASK_IO | CGROUP_MASK_BLKIO) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(nomem_leaf), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_IO | CGROUP_MASK_BLKIO) & m->cgroup_supported)); + ASSERT_CGROUP_MASK(unit_get_target_mask(root), (CGROUP_MASK_EXTEND_JOINED(CGROUP_MASK_CPU | cpu_accounting_mask | CGROUP_MASK_IO | CGROUP_MASK_BLKIO | CGROUP_MASK_MEMORY) & m->cgroup_supported)); + + return 0; +} + +static void test_cg_mask_to_string_one(CGroupMask mask, const char *t) { + _cleanup_free_ char *b = NULL; + + assert_se(cg_mask_to_string(mask, &b) >= 0); + assert_se(streq_ptr(b, t)); +} + +static void test_cg_mask_to_string(void) { + test_cg_mask_to_string_one(0, NULL); + test_cg_mask_to_string_one(_CGROUP_MASK_ALL, "cpu cpuacct io blkio memory devices pids bpf-firewall bpf-devices"); + test_cg_mask_to_string_one(CGROUP_MASK_CPU, "cpu"); + test_cg_mask_to_string_one(CGROUP_MASK_CPUACCT, "cpuacct"); + test_cg_mask_to_string_one(CGROUP_MASK_IO, "io"); + test_cg_mask_to_string_one(CGROUP_MASK_BLKIO, "blkio"); + test_cg_mask_to_string_one(CGROUP_MASK_MEMORY, "memory"); + test_cg_mask_to_string_one(CGROUP_MASK_DEVICES, "devices"); + test_cg_mask_to_string_one(CGROUP_MASK_PIDS, "pids"); + test_cg_mask_to_string_one(CGROUP_MASK_CPU|CGROUP_MASK_CPUACCT, "cpu cpuacct"); + test_cg_mask_to_string_one(CGROUP_MASK_CPU|CGROUP_MASK_PIDS, "cpu pids"); + test_cg_mask_to_string_one(CGROUP_MASK_CPUACCT|CGROUP_MASK_PIDS, "cpuacct pids"); + test_cg_mask_to_string_one(CGROUP_MASK_DEVICES|CGROUP_MASK_PIDS, "devices pids"); + test_cg_mask_to_string_one(CGROUP_MASK_IO|CGROUP_MASK_BLKIO, "io blkio"); +} + +int main(int argc, char* argv[]) { + int rc = EXIT_SUCCESS; + + test_setup_logging(LOG_DEBUG); + + test_cg_mask_to_string(); + TEST_REQ_RUNNING_SYSTEMD(rc = test_cgroup_mask()); + + return rc; +} |