* Context passed to lib_ring_buffer_reserve(), lib_ring_buffer_commit(),
* lib_ring_buffer_try_discard_reserve(), lib_ring_buffer_align_ctx() and
* lib_ring_buffer_write().
* Context passed to lib_ring_buffer_reserve(), lib_ring_buffer_commit(),
* lib_ring_buffer_try_discard_reserve(), lib_ring_buffer_align_ctx() and
* lib_ring_buffer_write().