size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(char));
size += sizeof(char); /* tag */
jctx = lookup_ctx_by_name(ctx_name);
size += lttng_ust_lib_ring_buffer_align(offset, lttng_ust_rb_alignof(char));
size += sizeof(char); /* tag */
jctx = lookup_ctx_by_name(ctx_name);