diff options
Diffstat (limited to 'src/H5Dvirtual.c')
| -rw-r--r-- | src/H5Dvirtual.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/src/H5Dvirtual.c b/src/H5Dvirtual.c index c0d49d8..a803cca 100644 --- a/src/H5Dvirtual.c +++ b/src/H5Dvirtual.c @@ -78,6 +78,7 @@ /********************/ /* Layout operation callbacks */ +static hbool_t H5D__virtual_is_data_cached(const H5D_shared_t *shared_dset); static herr_t H5D__virtual_read(H5D_io_info_t *io_info, const H5D_type_info_t *type_info, hsize_t nelmts, const H5S_t *file_space, const H5S_t *mem_space, H5D_chunk_map_t *fm); @@ -121,6 +122,7 @@ const H5D_layout_ops_t H5D_LOPS_VIRTUAL[1] = {{ NULL, H5D__virtual_init, H5D__virtual_is_space_alloc, + H5D__virtual_is_data_cached, NULL, H5D__virtual_read, H5D__virtual_write, @@ -2207,6 +2209,54 @@ H5D__virtual_is_space_alloc(const H5O_storage_t H5_ATTR_UNUSED *storage) /*------------------------------------------------------------------------- + * Function: H5D__virtual_is_data_cached + * + * Purpose: Query if raw data is cached for dataset + * + * Return: Non-negative on success/Negative on failure + * + * Programmer: Neil Fortner + * Wednessday, March 6, 2016 + * + *------------------------------------------------------------------------- + */ +static hbool_t +H5D__virtual_is_data_cached(const H5D_shared_t *shared_dset) +{ + const H5O_storage_virtual_t *storage; /* Convenience pointer */ + size_t i, j; /* Local index variables */ + hbool_t ret_value = FALSE; /* Return value */ + + FUNC_ENTER_PACKAGE_NOERR + + /* Sanity checks */ + HDassert(shared_dset); + storage = &shared_dset->layout.storage.u.virt; + + /* Iterate over mappings */ + for(i = 0; i < storage->list_nused; i++) + /* Check for "printf" source dataset resolution */ + if(storage->list[i].psfn_nsubs || storage->list[i].psdn_nsubs) { + /* Iterate over sub-source dsets */ + for(j = storage->list[i].sub_dset_io_start; j < storage->list[i].sub_dset_io_end; j++) + /* Check for cahced data in source dset */ + if(storage->list[i].sub_dset[j].dset + && storage->list[i].sub_dset[j].dset->shared->layout.ops->is_data_cached + && storage->list[i].sub_dset[j].dset->shared->layout.ops->is_data_cached(storage->list[i].sub_dset[j].dset->shared)) + HGOTO_DONE(TRUE); + } /* end if */ + else + if(storage->list[i].source_dset.dset + && storage->list[i].source_dset.dset->shared->layout.ops->is_data_cached + && storage->list[i].source_dset.dset->shared->layout.ops->is_data_cached(storage->list[i].source_dset.dset->shared)) + HGOTO_DONE(TRUE); + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5D__virtual_is_data_cached() */ + + +/*------------------------------------------------------------------------- * Function: H5D__virtual_pre_io * * Purpose: Project all virtual mappings onto mem_space, with the |