*
* The structures should be initialized to zero before use.
*/
-#define LTTNG_CHANNEL_ATTR_PADDING1 LTTNG_SYMBOL_NAME_LEN + 16
+#define LTTNG_CHANNEL_ATTR_PADDING1 LTTNG_SYMBOL_NAME_LEN + 12
struct lttng_channel_attr {
int overwrite; /* 1: overwrite, 0: discard */
uint64_t subbuf_size; /* bytes */
/* LTTng 2.1 padding limit */
uint64_t tracefile_size; /* bytes */
uint64_t tracefile_count; /* number of tracefiles */
+ /* LTTng 2.3 padding limit */
+ unsigned int live_timer_interval; /* usec */
char padding[LTTNG_CHANNEL_ATTR_PADDING1];
};
char path[PATH_MAX];
uint32_t enabled; /* enabled/started: 1, disabled/stopped: 0 */
uint32_t snapshot_mode;
+ unsigned int live_timer_interval; /* usec */
char padding[LTTNG_SESSION_PADDING1];
};
extern int lttng_create_session_snapshot(const char *name,
const char *snapshot_url);
+/*
+ * Create a session exclusively used for live reading.
+ *
+ * In this mode, the switch-timer parameter is forced for each UST channel, a
+ * live-switch-timer is enabled for kernel channels, manually setting
+ * switch-timer is forbidden. Synchronization beacons are sent to the relayd,
+ * indexes are sent and metadata is checked for each packet.
+ *
+ * Returns LTTNG_OK on success or a negative error code.
+ */
+extern int lttng_create_session_live(const char *name, const char *url,
+ unsigned int timer_interval);
+
/*
* Destroy a tracing session.
*