X-Git-Url: https://git.lttng.org/?p=lttng-tools.git;a=blobdiff_plain;f=src%2Fbin%2Flttng-sessiond%2Ftracker.h;fp=src%2Fbin%2Flttng-sessiond%2Ftracker.h;h=1df4a0ce75c94fa5dd8e81031fb330be808618d8;hp=0000000000000000000000000000000000000000;hb=a8c3ad3e850d45026f22ecdc7ea963b7e923bd08;hpb=d01c0e5606d656a1118348f693b3593554b1e58f

diff --git a/src/bin/lttng-sessiond/tracker.h b/src/bin/lttng-sessiond/tracker.h
new file mode 100644
index 000000000..1df4a0ce7
--- /dev/null
+++ b/src/bin/lttng-sessiond/tracker.h
@@ -0,0 +1,65 @@
+#ifndef _LTT_TRACKER_H
+#define _LTT_TRACKER_H
+
+/*
+ * Copyright (C) 2018 - Mathieu Desnoyers <mathieu.desnoyers@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.
+ */
+
+#include <lttng/session.h>
+#include <urcu.h>
+#include <urcu/list.h>
+#include <urcu/rculfhash.h>
+
+enum lttng_tracker_list_state {
+	LTTNG_TRACK_ALL,
+	LTTNG_TRACK_NONE,
+	LTTNG_TRACK_LIST,
+};
+
+/* Tracker ID */
+struct lttng_tracker_list_node {
+	struct lttng_tracker_id id;
+
+	struct cds_list_head list_node;
+	struct cds_lfht_node ht_node;
+	struct rcu_head rcu_head;
+};
+
+struct lttng_tracker_list {
+	struct cds_list_head list_head;
+	/* Hash table for O(1) removal lookup. */
+	struct cds_lfht *ht;
+	enum lttng_tracker_list_state state;
+};
+
+struct lttng_tracker_list *lttng_tracker_list_create(void);
+void lttng_tracker_list_destroy(struct lttng_tracker_list *tracker_list);
+
+int lttng_tracker_list_add(struct lttng_tracker_list *tracker_list,
+		const struct lttng_tracker_id *id);
+int lttng_tracker_list_remove(struct lttng_tracker_list *tracker_list,
+		const struct lttng_tracker_id *id);
+
+int lttng_tracker_id_lookup_string(enum lttng_tracker_type tracker_type,
+		const struct lttng_tracker_id *id,
+		int *result);
+ssize_t lttng_tracker_id_get_list(const struct lttng_tracker_list *tracker_list,
+		struct lttng_tracker_id **_ids);
+int lttng_tracker_id_set_list(struct lttng_tracker_list *tracker_list,
+		struct lttng_tracker_id *_ids,
+		size_t count);
+
+#endif /* _LTT_TRACKER_H */