bool cgm_create(const char *controller, const char *cg, uid_t uid, gid_t gid)
{
int32_t e;
pid_t pid = fork();
if (pid) {
if (wait_for_pid(pid) != 0)
return false;
return true;
}
if (setgroups(0, NULL))
_exit(1);
if (setresgid(gid, gid, gid))
_exit(1);
if (setresuid(uid, uid, uid))
_exit(1);
if (!cgm_dbus_connect()) {
_exit(1);
}
if ( cgmanager_create_sync(NULL, cgroup_manager, controller, cg, &e) != 0) {
NihError *nerr;
nerr = nih_error_get();
fprintf(stderr, "call to create failed (%s:%s): %s\n", controller, cg, nerr->message);
nih_free(nerr);
cgm_dbus_disconnect();
_exit(1);
}
cgm_dbus_disconnect();
_exit(0);
}
bool cgm_create(const char *cg, int32_t *existed)
{
if ( cgmanager_create_sync(NULL, cgroup_manager, ctrl_list, cg, existed) != 0) {
NihError *nerr;
nerr = nih_error_get();
fprintf(stderr, "call to create failed (%s:%s): %s\n", ctrl_list, cg, nerr->message);
nih_free(nerr);
return false;
}
return true;
}
static bool lxc_cgmanager_create(const char *controller, const char *cgroup_path, int32_t *existed)
{
if ( cgmanager_create_sync(NULL, cgroup_manager, controller,
cgroup_path, existed) != 0) {
NihError *nerr;
nerr = nih_error_get();
ERROR("call to cgmanager_create_sync failed: %s", nerr->message);
nih_free(nerr);
ERROR("Failed to create %s:%s", controller, cgroup_path);
return false;
}
return true;
}
/*
* Check whether we can create the cgroups we would want
*/
static bool subsys_is_writeable(const char *controller, const char *probe)
{
int32_t existed;
bool ret = true;
if ( cgmanager_create_sync(NULL, cgroup_manager, controller,
probe, &existed) != 0) {
NihError *nerr;
nerr = nih_error_get();
ERROR("call to cgmanager_create_sync failed: %s", nerr->message);
nih_free(nerr);
ERROR("Failed to create %s:%s", controller, probe);
ret = false;
}
return ret;
}
static void do_function(void *arguments)
{
char path[100];
int existed;
char *value;
bool err = false;
if (!cgm_dbus_connect()) {
fprintf(stderr, "Error connecting to dbus\n");
return;
}
sprintf(path, "cgmtest-%d", gettid());
if (connect_only) {
if (cgmanager_create_sync(NULL, cgroup_manager, "freezer", path, &existed) != 0) {
NihError *nerr = nih_error_get();
fprintf(stderr, "Error creating freezer cgroup: %s\n", nerr->message);
nih_free(nerr);
err = true;
}
if (cgmanager_get_value_sync(NULL, cgroup_manager, "freezer", path, "freezer.state", &value) != 0) {
NihError *nerr = nih_error_get();
fprintf(stderr, "Error querying freezer cgroup: %s\n", nerr->message);
nih_free(nerr);
err = true;
}
if (cgmanager_remove_sync(NULL, cgroup_manager, "freezer", path, 1, &existed) != 0) {
NihError *nerr = nih_error_get();
fprintf(stderr, "Error removing freezer cgroup: %s\n", nerr->message);
nih_free(nerr);
err = true;
}
}
cgm_dbus_disconnect();
if (err) {
fflush(stderr);
exit(1);
}
}
