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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 13:00:47 +0000
commit2cb7e0aaedad73b076ea18c6900b0e86c5760d79 (patch)
treeda68ca54bb79f4080079bf0828acda937593a4e1 /src/test/test-cgroup-setup.c
parentInitial commit. (diff)
downloadsystemd-2cb7e0aaedad73b076ea18c6900b0e86c5760d79.tar.xz
systemd-2cb7e0aaedad73b076ea18c6900b0e86c5760d79.zip
Adding upstream version 247.3.upstream/247.3upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to '')
-rw-r--r--src/test/test-cgroup-setup.c73
1 files changed, 73 insertions, 0 deletions
diff --git a/src/test/test-cgroup-setup.c b/src/test/test-cgroup-setup.c
new file mode 100644
index 0000000..72726ca
--- /dev/null
+++ b/src/test/test-cgroup-setup.c
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: LGPL-2.1-or-later */
+
+#include <unistd.h>
+
+#include "alloc-util.h"
+#include "build.h"
+#include "cgroup-setup.h"
+#include "errno-util.h"
+#include "log.h"
+#include "proc-cmdline.h"
+#include "string-util.h"
+#include "tests.h"
+
+static void test_is_wanted_print(bool header) {
+ _cleanup_free_ char *cmdline = NULL;
+
+ log_info("-- %s --", __func__);
+ assert_se(proc_cmdline(&cmdline) >= 0);
+ log_info("cmdline: %s", cmdline);
+ if (header) {
+ log_info(_CGROUP_HIERARCHY_);
+ (void) system("findmnt -n /sys/fs/cgroup");
+ }
+
+ log_info("is_unified_wanted() → %s", yes_no(cg_is_unified_wanted()));
+ log_info("is_hybrid_wanted() → %s", yes_no(cg_is_hybrid_wanted()));
+ log_info("is_legacy_wanted() → %s", yes_no(cg_is_legacy_wanted()));
+ log_info(" ");
+}
+
+static void test_is_wanted(void) {
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "systemd.unified_cgroup_hierarchy", 1) >= 0);
+ test_is_wanted_print(false);
+
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "systemd.unified_cgroup_hierarchy=0", 1) >= 0);
+ test_is_wanted_print(false);
+
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "systemd.unified_cgroup_hierarchy=0 "
+ "systemd.legacy_systemd_cgroup_controller", 1) >= 0);
+ test_is_wanted_print(false);
+
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "systemd.unified_cgroup_hierarchy=0 "
+ "systemd.legacy_systemd_cgroup_controller=0", 1) >= 0);
+ test_is_wanted_print(false);
+
+ /* cgroup_no_v1=all implies unified cgroup hierarchy, unless otherwise
+ * explicitly specified. */
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "cgroup_no_v1=all", 1) >= 0);
+ test_is_wanted_print(false);
+
+ assert_se(setenv("SYSTEMD_PROC_CMDLINE",
+ "cgroup_no_v1=all "
+ "systemd.unified_cgroup_hierarchy=0", 1) >= 0);
+ test_is_wanted_print(false);
+}
+
+int main(void) {
+ test_setup_logging(LOG_DEBUG);
+
+ if (access("/proc/cmdline", R_OK) < 0 && ERRNO_IS_PRIVILEGE(errno))
+ return log_tests_skipped("can't read /proc/cmdline");
+
+ test_is_wanted_print(true);
+ test_is_wanted_print(false); /* run twice to test caching */
+ test_is_wanted();
+
+ return 0;
+}