#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
};
enum connection_type {
- RELAY_DATA,
- RELAY_CONTROL,
-};
-
-/*
- * Represents a session for the relay point of view
- */
-struct relay_session {
- /*
- * This session id is used to identify a set of stream to a tracing session
- * but also make sure we have a unique session id associated with a session
- * daemon which can provide multiple data source.
- */
- uint64_t id;
- struct lttcomm_sock *sock;
-};
-
-/*
- * Represents a stream in the relay
- */
-struct relay_stream {
- uint64_t stream_handle;
- uint64_t prev_seq; /* previous data sequence number encountered */
- struct lttng_ht_node_ulong stream_n;
- struct relay_session *session;
- struct rcu_head rcu_node;
- int fd;
-
- /* Information telling us when to close the stream */
- unsigned int close_flag:1;
- uint64_t last_net_seq_num;
- /* Indicate if the stream was initialized for a data pending command. */
- unsigned int data_pending_check_done:1;
+ RELAY_DATA = 1,
+ RELAY_CONTROL = 2,
+ RELAY_VIEWER_COMMAND = 3,
+ RELAY_VIEWER_NOTIFICATION = 4,
};
/*
struct lttng_ht_node_ulong sock_n;
struct rcu_head rcu_node;
enum connection_type type;
+ /* 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;
};
+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 */