Implement libustctl

[lttng-ust.git] / libringbuffer / ring_buffer_frontend.c

diff --git a/libringbuffer/ring_buffer_frontend.c b/libringbuffer/ring_buffer_frontend.c
index 2cb99a3e608c72a97325ee3c64c7ffe31d78f8e1..cf012dfaf2225dfe7a66cf2fb63f4e860c48265d 100644 (file)
--- a/libringbuffer/ring_buffer_frontend.c
+++ b/libringbuffer/ring_buffer_frontend.c
@@ -460,7 +460,10 @@ struct shm_handle *channel_create(const struct lib_ring_buffer_config *config,
        shmobj = shm_object_table_append(handle->table, shmsize);
        if (!shmobj)
                goto error_append;
+       /* struct channel is at object 0, offset 0 (hardcoded) */
        set_shmp(handle->chan, zalloc_shm(shmobj, sizeof(struct channel)));
+       assert(handle->chan._ref.index == 0);
+       assert(handle->chan._ref.offset == 0);
        chan = shmp(handle, handle->chan);
        if (!chan)
                goto error_append;
@@ -526,7 +529,9 @@ struct shm_handle *channel_handle_create(int shm_fd, int wait_fd,
                        shm_fd, wait_fd, memory_map_size);
        if (!object)
                goto error_table_object;
-
+       /* struct channel is at object 0, offset 0 (hardcoded) */
+       handle->chan._ref.index = 0;
+       handle->chan._ref.offset = 0;
        return handle;
 
 error_table_object: