From e10375f2c0f5dd0dc8508f3ca165eb8aa63c64fb Mon Sep 17 00:00:00 2001
From: Lennart Poettering <lennart@poettering.net>
Date: Wed, 24 Apr 2013 17:54:55 -0300
Subject: login: allow watching virtual machines with sd_get_machine_names()

---
 src/login/sd-login.c   | 21 +++++++++++++++++++++
 src/systemd/sd-login.h |  3 ++-
 2 files changed, 23 insertions(+), 1 deletion(-)

(limited to 'src')

diff --git a/src/login/sd-login.c b/src/login/sd-login.c
index 35deb85f2d..bc8cd8ae8c 100644
--- a/src/login/sd-login.c
+++ b/src/login/sd-login.c
@@ -677,6 +677,27 @@ _public_ int sd_login_monitor_new(const char *category, sd_login_monitor **m) {
                 good = true;
         }
 
+        if (!category || streq(category, "machine")) {
+                _cleanup_free_ char *md = NULL, *p = NULL;
+                int r;
+
+                r = cg_get_machine_path(&md);
+                if (r < 0)
+                        return r;
+
+                r = cg_get_path(SYSTEMD_CGROUP_CONTROLLER, md, NULL, &p);
+                if (r < 0)
+                        return r;
+
+                k = inotify_add_watch(fd, p, IN_MOVED_TO|IN_CREATE|IN_DELETE);
+                if (k < 0) {
+                        close_nointr_nofail(fd);
+                        return -errno;
+                }
+
+                good = true;
+        }
+
         if (!good) {
                 close_nointr(fd);
                 return -EINVAL;
diff --git a/src/systemd/sd-login.h b/src/systemd/sd-login.h
index 2415039410..4855e327a1 100644
--- a/src/systemd/sd-login.h
+++ b/src/systemd/sd-login.h
@@ -157,7 +157,8 @@ int sd_get_machine_names(char ***machines);
 typedef struct sd_login_monitor sd_login_monitor;
 
 /* Create a new monitor. Category must be NULL, "seat", "session",
- * "uid" to get monitor events for the specific category (or all). */
+ * "uid", "machine" to get monitor events for the specific category
+ * (or all). */
 int sd_login_monitor_new(const char *category, sd_login_monitor** ret);
 
 /* Destroys the passed monitor. Returns NULL. */
-- 
cgit v1.2.3-54-g00ecf