X-Git-Url: https://git.lttng.org/?a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Frotate.h;fp=src%2Fbin%2Flttng-sessiond%2Frotate.h;h=b2f006f3e2fc96bbf0260480e409772dc4e18cc5;hb=db66e57489e5014289dc1d831e1eac90ac4fc0da;hp=0000000000000000000000000000000000000000;hpb=b99a8d4211e26a847ca8916884354f159c999ad2;p=lttng-tools.git

diff --git a/src/bin/lttng-sessiond/rotate.h b/src/bin/lttng-sessiond/rotate.h
new file mode 100644
index 000000000..b2f006f3e
--- /dev/null
+++ b/src/bin/lttng-sessiond/rotate.h
@@ -0,0 +1,51 @@
+/*
+ * Copyright (C) 2017 - Julien Desfossez <jdesfossez@efficios.com>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License, version 2 only, as
+ * published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 51
+ * Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef ROTATE_H
+#define ROTATE_H
+
+#include "rotation-thread.h"
+
+/*
+ * Key in channel_pending_rotate_ht to map a channel to a
+ * struct rotation_channel_info.
+ */
+struct rotation_channel_key {
+	uint64_t key;
+	enum lttng_domain_type domain;
+};
+
+/*
+ * Added in channel_pending_rotate_ht everytime we start the rotation of a
+ * channel. The consumer notifies the rotation thread with the channel_key to
+ * inform a rotation is complete, we use that information to lookup the related
+ * session from channel_pending_rotate_ht.
+ */
+struct rotation_channel_info {
+	uint64_t session_id;
+	struct rotation_channel_key channel_key;
+	struct cds_lfht_node rotate_channels_ht_node;
+};
+
+extern struct cds_lfht *channel_pending_rotate_ht;
+
+unsigned long hash_channel_key(struct rotation_channel_key *key);
+
+/* session lock must be held by this function's caller. */
+int rename_complete_chunk(struct ltt_session *session, time_t ts);
+
+#endif /* ROTATE_H */