*/
#include <urcu/list.h>
+#include <urcu/hlist.h>
#include <uuid/uuid.h>
#include <stdint.h>
#include <lttng/ust-abi.h>
long value;
};
+/*
+ * Entry describing an active loglevel, along with the event attribute
+ * and channel information configuring the events that need to be
+ * enabled.
+ */
+struct loglevel_entry {
+ struct cds_hlist_node hlist;
+ struct ltt_channel *chan;
+ struct lttng_ctx *ctx; /* TODO */
+ struct lttng_ust_event event_param;
+ struct cds_list_head events; /* list of events enabled */
+ struct cds_list_head list; /* per-session list of loglevels */
+ unsigned int enabled:1;
+ char name[0];
+};
+
struct lttng_event_desc {
const char *name;
void *probe_callback;
/*
* ltt_event structure is referred to by the tracing fast path. It must be
* kept small.
+ * Note about loglevel_list: this list is only used to enable/disable
+ * events on a per-loglevel basis. The events created internally by the
+ * loglevel are only freed when the session is destroyed.
*/
struct ltt_event {
unsigned int id;
union {
} u;
struct cds_list_head list; /* Event list */
+ struct cds_list_head loglevel_list; /* Event list for loglevel */
struct ust_pending_probe *pending_probe;
unsigned int metadata_dumped:1;
};
struct ltt_channel *metadata; /* Metadata channel */
struct cds_list_head chan; /* Channel list head */
struct cds_list_head events; /* Event list head */
+ struct cds_list_head loglevels; /* Loglevel list head */
struct cds_list_head list; /* Session list */
unsigned int free_chan_id; /* Next chan ID to allocate */
uuid_t uuid; /* Trace session unique ID */
struct lttng_ust_tracepoint_iter *
lttng_ust_tracepoint_list_get_iter_next(struct lttng_ust_tracepoint_list *list);
+struct loglevel_entry *get_loglevel(const char *name);
+struct loglevel_entry *add_loglevel(const char *name,
+ struct ltt_channel *chan,
+ struct lttng_ust_event *event_param);
+void _remove_loglevel(struct loglevel_entry *e);
+int ltt_loglevel_enable(struct loglevel_entry *loglevel);
+int ltt_loglevel_disable(struct loglevel_entry *loglevel);
+int ltt_loglevel_create(struct ltt_channel *chan,
+ struct lttng_ust_event *event_param,
+ struct loglevel_entry **_entry);
+
#endif /* _LTTNG_UST_EVENTS_H */