diff options
Diffstat (limited to 'src/device.c')
| -rw-r--r-- | src/device.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/src/device.c b/src/device.c index 7b73110120..7cb4ff699e 100644 --- a/src/device.c +++ b/src/device.c @@ -401,6 +401,39 @@ static Unit *device_following(Unit *u) { return UNIT(first); } +static int device_following_set(Unit *u, Set **_s) { + Device *d = DEVICE(u); + Device *other; + Set *s; + int r; + + assert(d); + assert(_s); + + if (!d->same_sysfs_prev && !d->same_sysfs_next) { + *_s = NULL; + return 0; + } + + if (!(s = set_new(NULL, NULL))) + return -ENOMEM; + + for (other = d->same_sysfs_next; other; other = other->same_sysfs_next) + if ((r = set_put(s, other)) < 0) + goto fail; + + for (other = d->same_sysfs_prev; other; other = other->same_sysfs_prev) + if ((r = set_put(s, other)) < 0) + goto fail; + + *_s = s; + return 1; + +fail: + set_free(s); + return r; +} + static void device_shutdown(Manager *m) { assert(m); @@ -550,6 +583,7 @@ const UnitVTable device_vtable = { .bus_invalidating_properties = bus_device_invalidating_properties, .following = device_following, + .following_set = device_following_set, .enumerate = device_enumerate, .shutdown = device_shutdown |