diff options
Diffstat (limited to 'src/H5Distore.c')
| -rw-r--r-- | src/H5Distore.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/src/H5Distore.c b/src/H5Distore.c index 54fd2a1..e560fd4 100644 --- a/src/H5Distore.c +++ b/src/H5Distore.c @@ -196,6 +196,13 @@ typedef struct H5D_istore_it_ud4_t { haddr_t addr_dst; /* Address of dest. B-tree */ } H5D_istore_it_ud4_t; +/* B-tree callback info for iteration to obtain chunk address and the index of the chunk for all chunks in the B-tree. */ +typedef struct H5D_istore_it_ud5_t { + H5D_istore_bt_ud_common_t common; /* Common info for B-tree user data (must be first) */ + hsize_t down_chunks[H5O_LAYOUT_NDIMS]; + haddr_t *chunk_addr; +} H5D_istore_it_ud5_t; + /********************/ /* Local Prototypes */ /********************/ @@ -206,6 +213,8 @@ static herr_t H5D_istore_shared_create (const H5F_t *f, H5O_layout_t *layout); static herr_t H5D_istore_shared_free (void *page); /* B-tree iterator callbacks */ +static int H5D_istore_iter_chunkmap(H5F_t *f, hid_t dxpl_id, const void *left_key, haddr_t addr, + const void *right_key, void *_udata); static int H5D_istore_iter_allocated(H5F_t *f, hid_t dxpl_id, const void *left_key, haddr_t addr, const void *right_key, void *_udata); static int H5D_istore_iter_dump(H5F_t *f, hid_t dxpl_id, const void *left_key, haddr_t addr, @@ -856,6 +865,53 @@ H5D_istore_iter_allocated (H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const void *_l FUNC_LEAVE_NOAPI(H5B_ITER_CONT) } /* H5D_istore_iter_allocated() */ + +/*------------------------------------------------------------------------- + * Function: H5D_istore_iter_chunkmap + * + * Purpose: obtain chunk address and the corresponding index + * + * Return: Success: Non-negative + * + * Failure: Negative + * + * Programmer: Robb Matzke + * Wednesday, April 21, 1999 + * + *------------------------------------------------------------------------- + */ +/* ARGSUSED */ +static int +H5D_istore_iter_chunkmap (H5F_t UNUSED *f, hid_t UNUSED dxpl_id, const void *_lt_key, haddr_t addr, + const void UNUSED *_rt_key, void *_udata) +{ + H5D_istore_it_ud5_t *udata = (H5D_istore_it_ud5_t *)_udata; + const H5D_istore_key_t *lt_key = (const H5D_istore_key_t *)_lt_key; + unsigned rank; + hsize_t chunk_offset[H5O_LAYOUT_NDIMS]; /*logical location of the chunks */ + hsize_t chunk_index; + int ret_value = H5B_ITER_CONT; /* Return value */ + + FUNC_ENTER_NOAPI_NOINIT(H5D_istore_iter_chunkmap); + + rank = udata->common.mesg->u.chunk.ndims - 1; + + if(H5V_chunk_index(rank,lt_key->offset,udata->common.mesg->u.chunk.dim,udata->down_chunks,&chunk_index)<0) + HGOTO_ERROR (H5E_DATASPACE, H5E_BADRANGE, FAIL, "can't get chunk index") + +#if 0 + HDfprintf(stdout,"chunk index is %Hu\n",chunk_index); +#endif + udata->chunk_addr[chunk_index] = addr; +#if 0 + HDfprintf(stdout,"chunk address is %Hu\n",addr); +#endif + done: + + FUNC_LEAVE_NOAPI(ret_value) +} /* H5D_istore_iter_allocated() */ + + /*------------------------------------------------------------------------- @@ -2300,6 +2356,102 @@ H5D_istore_allocated(H5D_t *dset, hid_t dxpl_id) done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5D_istore_allocated() */ + +/*------------------------------------------------------------------------- + * Function: H5D_istore_chunkmap + * + * Purpose: obtain the chunk address and corresponding chunk index + * + * + * + * Return: Success: Non-negative on succeed. + * + * Failure: negative value + * + * Programmer: + * + * + *------------------------------------------------------------------------- + */ +herr_t +H5D_istore_chunkmap(const H5D_io_info_t *io_info, hsize_t total_chunks,haddr_t chunk_addr[]) +{ + + H5D_t *dset=io_info->dset; /* Local pointer to dataset info */ + const H5D_rdcc_t *rdcc = &(dset->shared->cache.chunk); /*raw data chunk cache */ + H5D_rdcc_ent_t *ent; /*cache entry */ + H5D_dxpl_cache_t _dxpl_cache; /* Data transfer property cache buffer */ + H5D_dxpl_cache_t *dxpl_cache=&_dxpl_cache; /* Data transfer property cache */ + H5D_istore_it_ud5_t udata; + + hsize_t curr_dims[H5O_LAYOUT_NDIMS]; /*current dataspace dimensions */ + hsize_t chunks[H5O_LAYOUT_NDIMS]; /*current number of chunks in each dimension */ + hsize_t down_chunks[H5O_LAYOUT_NDIMS]; /* "down" size of number of elements in each dimension */ + + int srank; /*current # of dimensions (signed) */ + unsigned rank; /*current # of dimensions */ + unsigned u; + + hid_t dxpl_id = io_info->dxpl_id; + herr_t ret_value = SUCCEED; /* Return value */ + + FUNC_ENTER_NOAPI(H5D_istore_chunkmap, 0) + + HDassert(dset); + +#if 0 + /* Fill the DXPL cache values for later use */ + if (H5D_get_dxpl_cache(dxpl_id,&dxpl_cache)<0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, 0, "can't fill dxpl cache") + + /* Construct dataset I/O info */ + H5D_BUILD_IO_INFO(&io_info,dset,dxpl_cache,dxpl_id,NULL); + + /* Search for cached chunks that haven't been written out */ + for(ent = rdcc->head; ent; ent = ent->next) { + /* Flush the chunk out to disk, to make certain the size is correct later */ + if (H5D_istore_flush_entry(&io_info, ent, FALSE)<0) + HGOTO_ERROR(H5E_IO, H5E_WRITEERROR, 0, "cannot flush indexed storage buffer") + } /* end for */ +#endif + + HDmemset(&udata, 0, sizeof udata); + udata.common.mesg = &dset->shared->layout; + + /* Go get the rank & dimensions */ + if((srank = H5S_get_simple_extent_dims(dset->shared->space, curr_dims, NULL)) < 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get dataset dimensions"); + H5_ASSIGN_OVERFLOW(rank,srank,int,unsigned); + + /* Obtain number of chunks for each dimension*/ + for(u = 0; u < rank; u++) { + /* Round up to the next integer # of chunks, to accomodate partial chunks */ + chunks[u] = ((curr_dims[u]+dset->shared->layout.u.chunk.dim[u])-1) / dset->shared->layout.u.chunk.dim[u]; + } /* end for */ + + /* Get the "down" sizes for each dimension */ + if(H5V_array_down(rank,chunks,udata.down_chunks)<0) + HGOTO_ERROR (H5E_INTERNAL, H5E_BADVALUE, FAIL, "can't compute 'down' sizes") + /* + for(u = 0; u < rank; u++) + udata.down_chunks[u] = down_chunks[u]; + */ + + assert(total_chunks!=0); + udata.chunk_addr=(haddr_t *)malloc(total_chunks*sizeof(haddr_t)); + HDmemset(udata.chunk_addr,0,total_chunks*sizeof(haddr_t)); + + if (H5B_iterate(dset->oloc.file, dxpl_id, H5B_ISTORE, H5D_istore_iter_chunkmap, dset->shared->layout.u.chunk.addr, &udata)<0) + HGOTO_ERROR(H5E_IO, H5E_CANTINIT, 0, "unable to iterate over chunk B-tree") + + for(u=0; u<total_chunks;u++) + chunk_addr[u] = udata.chunk_addr[u]; + HDfree(udata.chunk_addr); + +done: + FUNC_LEAVE_NOAPI(ret_value) +} /* end H5D_istore_allocated() */ + /*------------------------------------------------------------------------- |