cgls: add --machine/-M

[elogind.git] / src / nspawn / nspawn.c

diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 0a46313636bd0183739fb6607dd20bb6345c2131..bbb3334ba1a2cfb023f3f9451ddf2030df07e248 100644 (file)
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -1217,7 +1217,7 @@ finish:
 int main(int argc, char *argv[]) {
         pid_t pid = 0;
         int r = EXIT_FAILURE, k;
-        _cleanup_free_ char *machine_root = NULL, *name = NULL, *escaped = NULL, *newcg = NULL;
+        _cleanup_free_ char *newcg = NULL;
         _cleanup_close_ int master = -1;
         int n_fd_passed;
         const char *console = NULL;
@@ -1231,9 +1231,13 @@ int main(int argc, char *argv[]) {
         log_parse_environment();
         log_open();
 
-        r = parse_argv(argc, argv);
-        if (r <= 0)
+        k = parse_argv(argc, argv);
+        if (k < 0)
                 goto finish;
+        else if (k == 0) {
+                r = EXIT_SUCCESS;
+                goto finish;
+        }
 
         if (arg_directory) {
                 char *p;
@@ -1297,32 +1301,14 @@ int main(int argc, char *argv[]) {
         fdset_close_others(fds);
         log_open();
 
-        k = cg_get_machine_path(&machine_root);
+        k = cg_get_machine_path(arg_machine, &newcg);
         if (k < 0) {
                 log_error("Failed to determine machine cgroup path: %s", strerror(-k));
                 goto finish;
         }
 
-        name = strappend(arg_machine, ".nspawn");
-        if (!name) {
-                log_oom();
-                goto finish;
-        }
-
-        escaped = cg_escape(name);
-        if (!escaped) {
-                log_oom();
-                goto finish;
-        }
-
-        newcg = strjoin(machine_root, "/", escaped, NULL);
-        if (!newcg) {
-                log_oom();
-                goto finish;
-        }
-
-        r = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, newcg, false);
-        if (r <= 0 && r != -ENOENT) {
+        k = cg_is_empty_recursive(SYSTEMD_CGROUP_CONTROLLER, newcg, true);
+        if (k <= 0 && k != -ENOENT) {
                 log_error("Container already running.");
 
                 free(newcg);
@@ -1366,6 +1352,8 @@ int main(int argc, char *argv[]) {
                 goto finish;
         }
 
+        sd_notify(0, "READY=1");
+
         assert_se(sigemptyset(&mask) == 0);
         sigset_add_many(&mask, SIGCHLD, SIGWINCH, SIGTERM, SIGINT, -1);
         assert_se(sigprocmask(SIG_BLOCK, &mask, NULL) == 0);
@@ -1701,8 +1689,8 @@ int main(int argc, char *argv[]) {
                 if (saved_attr_valid)
                         tcsetattr(STDIN_FILENO, TCSANOW, &saved_attr);
 
-                r = wait_for_terminate(pid, &status);
-                if (r < 0) {
+                k = wait_for_terminate(pid, &status);
+                if (k < 0) {
                         r = EXIT_FAILURE;
                         break;
                 }