Version 2.5.6

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

diff --git a/lttng-events.h b/lttng-events.h
index 6b39304f8d114e92387308cac22d74c72e0f5a98..7b8294657cc4f6f3d8541a383a4aaa4895ab42fe 100644 (file)
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -167,6 +167,7 @@ struct lttng_ctx {
        struct lttng_ctx_field *fields;
        unsigned int nr_fields;
        unsigned int allocated_fields;
+       size_t largest_align;   /* in bytes */
 };
 
 struct lttng_event_desc {
@@ -236,6 +237,10 @@ 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
@@ -328,6 +333,8 @@ struct lttng_metadata_cache {
        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);
@@ -399,6 +406,7 @@ static inline int lttng_syscalls_unregister(struct lttng_channel *chan)
 #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);
@@ -429,6 +437,9 @@ 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