struct lib_ring_buffer_ctx;
struct perf_event;
struct perf_event_attr;
+struct lib_ring_buffer_config;
/* Type description */
struct lttng_ctx_field *fields;
unsigned int nr_fields;
unsigned int allocated_fields;
+ size_t largest_align; /* in bytes */
};
struct lttng_event_desc {
- const char *name;
+ const char *name; /* lttng-modules name */
+ const char *kname; /* Linux kernel name (tracepoints) */
void *probe_callback;
const struct lttng_event_ctx *ctx; /* context */
const struct lttng_event_field *fields; /* event payload */
const void *src, size_t len);
void (*event_memset)(struct lib_ring_buffer_ctx *ctx,
int c, size_t len);
+ void (*event_strcpy)(struct lib_ring_buffer_ctx *ctx, const char *src,
+ size_t len);
+ void (*event_strcpy_from_user)(struct lib_ring_buffer_ctx *ctx,
+ const char __user *src, size_t len);
/*
* packet_avail_size returns the available size in the current
* packet. Note that the size returned is only a hint, since it
wait_queue_head_t *(*get_hp_wait_queue)(struct channel *chan);
int (*is_finalized)(struct channel *chan);
int (*is_disabled)(struct channel *chan);
+ int (*timestamp_begin) (const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *timestamp_begin);
+ int (*timestamp_end) (const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *timestamp_end);
+ int (*events_discarded) (const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *events_discarded);
+ int (*content_size) (const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *content_size);
+ int (*packet_size) (const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *packet_size);
+ int (*stream_id) (const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *stream_id);
+ int (*current_timestamp) (const struct lib_ring_buffer_config *config,
+ struct lib_ring_buffer *bufb,
+ uint64_t *ts);
};
struct lttng_transport {
unsigned int metadata_written; /* Number of bytes written in metadata cache */
struct kref refcount; /* Metadata cache usage */
struct list_head metadata_stream; /* Metadata stream list */
+ uuid_le uuid; /* Trace session unique ID (copy) */
+ struct mutex lock;
};
struct lttng_session *lttng_session_create(void);
#endif
struct lttng_ctx_field *lttng_append_context(struct lttng_ctx **ctx);
+void lttng_context_update(struct lttng_ctx *ctx);
int lttng_find_context(struct lttng_ctx *ctx, const char *name);
void lttng_remove_context_field(struct lttng_ctx **ctx,
struct lttng_ctx_field *field);
}
#endif
+int lttng_logger_init(void);
+void lttng_logger_exit(void);
+
extern int lttng_statedump_start(struct lttng_session *session);
#ifdef CONFIG_KPROBES