/* Slow path only, at subbuffer switch */
size_t (*subbuffer_header_size) (void);
- void (*buffer_begin) (struct lttng_kernel_ring_buffer *buf, u64 tsc,
+ void (*buffer_begin) (struct lttng_kernel_ring_buffer *buf, u64 timestamp,
unsigned int subbuf_idx);
- void (*buffer_end) (struct lttng_kernel_ring_buffer *buf, u64 tsc,
- unsigned int subbuf_idx, unsigned long data_size);
+ void (*buffer_end) (struct lttng_kernel_ring_buffer *buf, u64 timestamp,
+ unsigned int subbuf_idx, unsigned long data_size,
+ const struct lttng_kernel_ring_buffer_ctx *ctx);
/* Optional callbacks (can be set to NULL) */
*/
} wakeup;
/*
- * tsc_bits: timestamp bits saved at each record.
+ * timestamp_bits: timestamp bits saved at each record.
* 0 and 64 disable the timestamp compression scheme.
*/
- unsigned int tsc_bits;
+ unsigned int timestamp_bits;
struct lttng_kernel_ring_buffer_client_cb cb;
};
* prior to record header alignment
* padding.
*/
- u64 tsc; /* time-stamp counter value */
+ u64 timestamp; /* time-stamp counter value */
unsigned int rflags; /* reservation flags */
- struct lttng_kernel_ring_buffer *buf; /*
+ struct lttng_kernel_ring_buffer *buf; /*
* buffer corresponding to processor id
* for this channel
*/
struct lttng_kernel_ring_buffer_backend_pages *backend_pages;
+
+ /*
+ * Records lost counts are only loaded into these fields before
+ * reserving the last bytes from the ring buffer.
+ */
+ unsigned long records_lost_full;
+ unsigned long records_lost_wrap;
+ unsigned long records_lost_big;
};
/*
/*
* Reservation flags.
*
- * RING_BUFFER_RFLAG_FULL_TSC
+ * RING_BUFFER_RFLAG_FULL_TIMESTAMP
*
* This flag is passed to record_header_size() and to the primitive used to
* write the record header. It indicates that the full 64-bit time value is
* needed in the record header. If this flag is not set, the record header needs
- * only to contain "tsc_bits" bit of time value.
+ * only to contain "timestamp_bits" bit of time value.
*
* Reservation flags can be added by the client, starting from
* "(RING_BUFFER_FLAGS_END << 0)". It can be used to pass information from
* record_header_size() to lib_ring_buffer_write_record_header().
*/
-#define RING_BUFFER_RFLAG_FULL_TSC (1U << 0)
+#define RING_BUFFER_RFLAG_FULL_TIMESTAMP (1U << 0)
#define RING_BUFFER_RFLAG_END (1U << 1)
#ifndef LTTNG_TRACER_CORE_H