diff options
Diffstat (limited to 'src/H5Dchunk.c')
| -rw-r--r-- | src/H5Dchunk.c | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/src/H5Dchunk.c b/src/H5Dchunk.c index dcd3a8d..27a6125 100644 --- a/src/H5Dchunk.c +++ b/src/H5Dchunk.c @@ -313,6 +313,7 @@ const H5D_layout_ops_t H5D_LOPS_CHUNK[1] = {{ H5D__chunk_construct, H5D__chunk_init, H5D__chunk_is_space_alloc, + H5D__chunk_is_data_cached, H5D__chunk_io_init, H5D__chunk_read, H5D__chunk_write, @@ -340,6 +341,7 @@ const H5D_layout_ops_t H5D_LOPS_NONEXISTENT[1] = {{ NULL, NULL, NULL, + NULL, #ifdef H5_HAVE_PARALLEL NULL, NULL, @@ -394,10 +396,13 @@ H5D__chunk_direct_write(const H5D_t *dset, uint32_t filters, hsize_t *offset, FUNC_ENTER_PACKAGE_TAG(dset->oloc.addr) + /* Sanity checks */ + HDassert(layout->type == H5D_CHUNKED); + io_info.dset = dset; /* Allocate dataspace and initialize it if it hasn't been. */ - if(!(*layout->ops->is_space_alloc)(&layout->storage)) + if(!H5D__chunk_is_space_alloc(&layout->storage)) /* Allocate storage */ if(H5D__alloc_storage(&io_info, H5D_ALLOC_WRITE, FALSE, NULL) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "unable to initialize storage") @@ -435,13 +440,17 @@ H5D__chunk_direct_write(const H5D_t *dset, uint32_t filters, hsize_t *offset, if(0 == idx_info.pline->nused && H5F_addr_defined(old_chunk.offset)) /* If there are no filters and we are overwriting the chunk we can just set values */ need_insert = FALSE; - else + else { /* Otherwise, create the chunk it if it doesn't exist, or reallocate the chunk * if its size has changed. */ if(H5D__chunk_file_alloc(&idx_info, &old_chunk, &udata.chunk_block, &need_insert, scaled) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTALLOC, FAIL, "unable to allocate chunk") + /* Cache the new chunk information */ + H5D__chunk_cinfo_cache_update(&dset->shared->cache.chunk.last, &udata); + } /* end else */ + /* Make sure the address of the chunk is returned. */ if(!H5F_addr_defined(udata.chunk_block.offset)) HGOTO_ERROR(H5E_DATASET, H5E_BADVALUE, FAIL, "chunk address isn't defined") @@ -506,7 +515,8 @@ H5D__chunk_direct_read(const H5D_t *dset, hsize_t *offset, uint32_t* filters, *filters = 0; /* Allocate dataspace and initialize it if it hasn't been. */ - if(!(*layout->ops->is_space_alloc)(&layout->storage)) + if(!H5D__chunk_is_space_alloc(&layout->storage) + && !H5D__chunk_is_data_cached(dset->shared)) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, FAIL, "storage is not initialized") /* Calculate the index of this chunk */ @@ -1019,6 +1029,30 @@ H5D__chunk_is_space_alloc(const H5O_storage_t *storage) /*------------------------------------------------------------------------- + * Function: H5D__chunk_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 + * + *------------------------------------------------------------------------- + */ +hbool_t +H5D__chunk_is_data_cached(const H5D_shared_t *shared_dset) +{ + FUNC_ENTER_PACKAGE_NOERR + + /* Sanity checks */ + HDassert(shared_dset); + + FUNC_LEAVE_NOAPI(shared_dset->cache.chunk.nused > 0) +} /* end H5D__chunk_is_data_cached() */ + + +/*------------------------------------------------------------------------- * Function: H5D__chunk_io_init * * Purpose: Performs initialization before any sort of I/O on the raw data |