Cleanup: update stale file paths in LICENSE

[lttng-modules.git] / include / ringbuffer / config.h

diff --git a/include/ringbuffer/config.h b/include/ringbuffer/config.h
index d6dc5af6afcf61b40b9e5eb3161238a07158bad6..e63463b08ef45b8fd6540681f636630ef6763db5 100644 (file)
--- a/include/ringbuffer/config.h
+++ b/include/ringbuffer/config.h
@@ -41,10 +41,11 @@ struct lttng_kernel_ring_buffer_client_cb {
 
        /* 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) */
 
@@ -150,10 +151,10 @@ struct lttng_kernel_ring_buffer_config {
                                                 */
        } 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;
 };
 
@@ -181,14 +182,22 @@ struct lttng_kernel_ring_buffer_ctx_private {
                                                 * 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;
 };
 
 /*
@@ -235,18 +244,18 @@ void lib_ring_buffer_ctx_init(struct lttng_kernel_ring_buffer_ctx *ctx,
 /*
  * 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