* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#ifndef _LTT_RELAYD_H
-#define _LTT_RELAYD_H
+#ifndef LTTNG_RELAYD_H
+#define LTTNG_RELAYD_H
#define _LGPL_SOURCE
+#include <limits.h>
#include <urcu.h>
#include <urcu/wfqueue.h>
+#include <urcu/list.h>
+
+#include <common/hashtable/hashtable.h>
+#include <common/index/ctf-index.h>
+
+#include "ctf-trace.h"
+#include "session.h"
/*
* Queue used to enqueue relay requests
*/
struct relay_cmd_queue {
- int32_t futex;
struct cds_wfq_queue queue;
+ int32_t futex;
};
enum connection_type {
- RELAY_DATA,
- RELAY_CONTROL,
-};
-
-/*
- * Represents a session for the relay point of view
- */
-struct relay_session {
- uint64_t id;
- struct lttcomm_sock *sock;
- unsigned int version_check_done:1;
-};
-
-/*
- * Represents a stream in the relay
- */
-struct relay_stream {
- uint64_t stream_handle;
- struct lttng_ht_node_ulong stream_n;
- int fd;
- uint64_t seq;
- struct relay_session *session;
+ RELAY_DATA = 1,
+ RELAY_CONTROL = 2,
+ RELAY_VIEWER_COMMAND = 3,
+ RELAY_VIEWER_NOTIFICATION = 4,
};
/*
*/
struct relay_command {
struct lttcomm_sock *sock;
+ struct relay_session *session;
struct cds_wfq_node node;
struct lttng_ht_node_ulong sock_n;
+ struct rcu_head rcu_node;
enum connection_type type;
- struct relay_session *session;
+ /* protocol version to use for this session */
+ uint32_t major;
+ uint32_t minor;
+ uint64_t session_id;
+ struct cds_list_head recv_head;
+ unsigned int version_check_done:1;
};
-#endif
+struct relay_local_data {
+ struct lttng_ht *sessions_ht;
+};
+
+extern char *opt_output_path;
+
+/*
+ * Contains stream indexed by ID. This is important since many commands lookup
+ * streams only by ID thus also keeping them in this hash table makes the
+ * search O(1) instead of iterating over the ctf_traces_ht of the session.
+ */
+extern struct lttng_ht *relay_streams_ht;
+
+extern struct lttng_ht *viewer_streams_ht;
+extern struct lttng_ht *indexes_ht;
+
+extern const char *tracing_group_name;
+
+extern const char * const config_section_name;
+
+void lttng_relay_notify_ready(void);
+
+#endif /* LTTNG_RELAYD_H */