__event_align = __event_get_align__##_provider##___##_name(_TP_ARGS_VAR(_args)); \
lib_ring_buffer_ctx_init(&__ctx, __chan->chan, __event, __event_len, \
__event_align, -1, __chan->handle); \
__event_align = __event_get_align__##_provider##___##_name(_TP_ARGS_VAR(_args)); \
lib_ring_buffer_ctx_init(&__ctx, __chan->chan, __event, __event_len, \
__event_align, -1, __chan->handle); \