Refactor struct lttng_ust_lib_ring_buffer_ctx

[lttng-ust.git] / libringbuffer / backend_internal.h

diff --git a/libringbuffer/backend_internal.h b/libringbuffer/backend_internal.h
index 538176142bbdd462868217ceb4b0963eb284226f..9e57a6c6059fb20b85575c6687d3fff9bfa15ae6 100644 (file)
--- a/libringbuffer/backend_internal.h
+++ b/libringbuffer/backend_internal.h
@@ -18,33 +18,44 @@
 #include "backend_types.h"
 #include "frontend_types.h"
 #include "shm.h"
+#include "ust-helper.h"
 
 /* Ring buffer backend API presented to the frontend */
 
 /* Ring buffer and channel backend create/free */
 
+LTTNG_HIDDEN
 int lib_ring_buffer_backend_create(struct lttng_ust_lib_ring_buffer_backend *bufb,
                                   struct channel_backend *chan, int cpu,
                                   struct lttng_ust_shm_handle *handle,
                                   struct shm_object *shmobj);
+LTTNG_HIDDEN
 void channel_backend_unregister_notifiers(struct channel_backend *chanb);
+LTTNG_HIDDEN
 void lib_ring_buffer_backend_free(struct lttng_ust_lib_ring_buffer_backend *bufb);
+LTTNG_HIDDEN
 int channel_backend_init(struct channel_backend *chanb,
                         const char *name,
                         const struct lttng_ust_lib_ring_buffer_config *config,
                         size_t subbuf_size,
                         size_t num_subbuf, struct lttng_ust_shm_handle *handle,
                         const int *stream_fds);
+LTTNG_HIDDEN
 void channel_backend_free(struct channel_backend *chanb,
                          struct lttng_ust_shm_handle *handle);
 
+LTTNG_HIDDEN
 void lib_ring_buffer_backend_reset(struct lttng_ust_lib_ring_buffer_backend *bufb,
                                   struct lttng_ust_shm_handle *handle);
+LTTNG_HIDDEN
 void channel_backend_reset(struct channel_backend *chanb);
 
+LTTNG_HIDDEN
 int lib_ring_buffer_backend_init(void);
+LTTNG_HIDDEN
 void lib_ring_buffer_backend_exit(void);
 
+LTTNG_HIDDEN
 extern void _lib_ring_buffer_write(struct lttng_ust_lib_ring_buffer_backend *bufb,
                                   size_t offset, const void *src, size_t len,
                                   ssize_t pagecpy);
@@ -225,9 +236,6 @@ struct lttng_ust_lib_ring_buffer_backend_pages *
        lib_ring_buffer_get_backend_pages_from_ctx(const struct lttng_ust_lib_ring_buffer_config *config,
                struct lttng_ust_lib_ring_buffer_ctx *ctx)
 {
-       if (caa_unlikely(ctx->ctx_len
-                       < sizeof(struct lttng_ust_lib_ring_buffer_ctx)))
-               return NULL;
        return ctx->backend_pages;
 }