Fix: refuse overwrite mode buffers with less than two subbuffers

[lttng-modules.git] / lttng-events.h

diff --git a/lttng-events.h b/lttng-events.h
index bce6507c77989450f682e983b08856cec3e5ea99..e1de1af8974da959230ab8f1920d92f290f2a23b 100644 (file)
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -170,7 +170,8 @@ struct lttng_ctx {
 };
 
 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 */
@@ -235,6 +236,10 @@ struct lttng_channel_ops {
                                      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
@@ -263,6 +268,9 @@ struct lttng_channel_ops {
        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 {
@@ -425,6 +433,9 @@ int lttng_add_perf_counter_to_ctx(uint32_t type,
 }
 #endif
 
+int lttng_logger_init(void);
+void lttng_logger_exit(void);
+
 extern int lttng_statedump_start(struct lttng_session *session);
 
 #ifdef CONFIG_KPROBES