X-Git-Url: http://git.lttng.org/?a=blobdiff_plain;f=lttng-events.h;h=e8c9afedffc3eb3ac94c1536e72d3943aaf330be;hb=refs%2Fheads%2Fstable-2.4;hp=f0628c4cd7a9582e7f2a271c8ddd0b092edd7a54;hpb=2348ca17d04c122d21f9329faa6941d0b147b378;p=lttng-modules.git

diff --git a/lttng-events.h b/lttng-events.h
index f0628c4c..e8c9afed 100644
--- a/lttng-events.h
+++ b/lttng-events.h
@@ -167,10 +167,12 @@ 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 {
-	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 +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
@@ -306,6 +312,7 @@ struct lttng_metadata_stream {
 	wait_queue_head_t read_wait;	/* Reader buffer-level wait queue */
 	struct list_head list;		/* Stream list */
 	struct lttng_transport *transport;
+	struct mutex lock;
 };
 
 struct lttng_session {
@@ -327,6 +334,7 @@ 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 lttng_session *lttng_session_create(void);
@@ -398,6 +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);