struct lttng_channel: split protocol ABI from instrumentation ABI

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

diff --git a/libringbuffer/backend.h b/libringbuffer/backend.h
index 98c194ca5bf988603646071b778ac936b1add00d..4ecbfe53886a28bb36a2b6c46eeea59702a84a18 100644 (file)
--- a/libringbuffer/backend.h
+++ b/libringbuffer/backend.h
@@ -23,10 +23,12 @@
 
 /* Ring buffer backend access (read/write) */
 
+__attribute__((visibility("hidden")))
 extern size_t lib_ring_buffer_read(struct lttng_ust_lib_ring_buffer_backend *bufb,
                                   size_t offset, void *dest, size_t len,
                                   struct lttng_ust_shm_handle *handle);
 
+__attribute__((visibility("hidden")))
 extern int lib_ring_buffer_read_cstr(struct lttng_ust_lib_ring_buffer_backend *bufb,
                                     size_t offset, void *dest, size_t len,
                                     struct lttng_ust_shm_handle *handle);
@@ -37,10 +39,13 @@ extern int lib_ring_buffer_read_cstr(struct lttng_ust_lib_ring_buffer_backend *b
  * it's never on a page boundary, it's safe to write directly to this address,
  * as long as the write is never bigger than a page size.
  */
+__attribute__((visibility("hidden")))
 extern void *
 lib_ring_buffer_offset_address(struct lttng_ust_lib_ring_buffer_backend *bufb,
                               size_t offset,
                               struct lttng_ust_shm_handle *handle);
+
+__attribute__((visibility("hidden")))
 extern void *
 lib_ring_buffer_read_offset_address(struct lttng_ust_lib_ring_buffer_backend *bufb,
                                    size_t offset,
@@ -191,7 +196,7 @@ unsigned long lib_ring_buffer_get_records_unread(
        struct lttng_ust_lib_ring_buffer_backend *bufb = &buf->backend;
        unsigned long records_unread = 0, sb_bindex;
        unsigned int i;
-       struct channel *chan;
+       struct lttng_ust_lib_ring_buffer_channel *chan;
 
        chan = shmp(handle, bufb->chan);
        if (!chan)