Rotate command

[lttng-tools.git] / src / bin / lttng-sessiond / rotate.c

diff --git a/src/bin/lttng-sessiond/rotate.c b/src/bin/lttng-sessiond/rotate.c
index 05e9bb08a48ca397710beb720c78ea5e59891df4..49ccea94e381fd6ee520162b8c362f310efe7e9e 100644 (file)
--- a/src/bin/lttng-sessiond/rotate.c
+++ b/src/bin/lttng-sessiond/rotate.c
@@ -50,6 +50,38 @@ unsigned long hash_channel_key(struct rotation_channel_key *key)
                        (void *) (unsigned long) key->domain, lttng_ht_seed);
 }
 
+int rotate_add_channel_pending(uint64_t key, enum lttng_domain_type domain,
+               struct ltt_session *session)
+{
+       int ret;
+       struct rotation_channel_info *new_info;
+       struct rotation_channel_key channel_key = { .key = key,
+               .domain = domain };
+
+       new_info = zmalloc(sizeof(struct rotation_channel_info));
+       if (!new_info) {
+               goto error;
+       }
+
+       new_info->channel_key.key = key;
+       new_info->channel_key.domain = domain;
+       new_info->session_id = session->id;
+       cds_lfht_node_init(&new_info->rotate_channels_ht_node);
+
+       session->nr_chan_rotate_pending++;
+       cds_lfht_add(channel_pending_rotate_ht,
+                       hash_channel_key(&channel_key),
+                       &new_info->rotate_channels_ht_node);
+
+       ret = 0;
+       goto end;
+
+error:
+       ret = -1;
+end:
+       return ret;
+}
+
 /* The session's lock must be held by the caller. */
 static
 int session_rename_chunk(struct ltt_session *session, char *current_path,