src/test/test-helper.c

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2
   3 #include "test-helper.h"
   4 #include "random-util.h"
   5 #include "alloc-util.h"
   6 #include "cgroup-setup.h"
   7 #include "string-util.h"
   8
   9 int enter_cgroup_subroot(void) {
  10         _cleanup_free_ char *cgroup_root = NULL, *cgroup_subroot = NULL;
  11         CGroupMask supported;
  12         int r;
  13
  14         r = cg_pid_get_path(NULL, 0, &cgroup_root);
  15         if (r == -ENOMEDIUM)
  16                 return log_warning_errno(r, "cg_pid_get_path(NULL, 0, ...) failed: %m");
  17         assert(r >= 0);
  18
  19         assert_se(asprintf(&cgroup_subroot, "%s/%" PRIx64, cgroup_root, random_u64()) >= 0);
  20         assert_se(cg_mask_supported(&supported) >= 0);
  21
  22         /* If this fails, then we don't mind as the later cgroup operations will fail too, and it's fine if we handle
  23          * any errors at that point. */
  24
  25         r = cg_create_everywhere(supported, _CGROUP_MASK_ALL, cgroup_subroot);
  26         if (r < 0)
  27                 return r;
  28
  29         return cg_attach_everywhere(supported, cgroup_subroot, 0, NULL, NULL);
  30 }
  31
  32 /* https://docs.travis-ci.com/user/environment-variables#default-environment-variables */
  33 bool is_run_on_travis_ci(void) {
  34         return streq_ptr(getenv("TRAVIS"), "true");
  35 }