[Pvfs2-developers] Must they match with each other --- mem_count and stream_count?

[Murali Vilayannur]

Hi Peng,

> static int dbpf_bstream_read_list(TROVE_coll_id coll_id,
>                                   TROVE_handle handle,
>                                   char **mem_offset_array,
>                                   TROVE_size *mem_size_array,
>                                   int mem_count,
>                                   TROVE_offset *stream_offset_array,
>                                   TROVE_size *stream_size_array,
>                                   int stream_count,
>                                   TROVE_size *out_size_p,
>                                   TROVE_ds_flags flags,
>                                   TROVE_vtag_s *vtag,
>                                   void *user_ptr,
>                                   TROVE_context_id context_id,
>                                   TROVE_op_id *out_op_id_p)
>
> My question is, in its parameter list, does the mem_count and
> stream_count must match with each other?  If yes, why should we keep
> both of them?

They don't have to match each other and hence we need to keep them
both! mem_count is the number of elements in memory, while stream_count is
the number of elements on file/disk.
Thanks,
Murali