mirror of
https://github.com/HDFGroup/hdf5.git
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370 lines
10 KiB
C
370 lines
10 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* Copyright by the Board of Trustees of the University of Illinois. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the files COPYING and Copyright.html. COPYING can be found at the root *
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* of the source code distribution tree; Copyright.html can be found at the *
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* root level of an installed copy of the electronic HDF5 document set and *
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* is linked from the top-level documents page. It can also be found at *
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* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
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* access to either file, you may request a copy from help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include "h5repack.h"
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#include "h5tools.h"
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#include "h5tools_utils.h"
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/*-------------------------------------------------------------------------
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* Function: init_packobject
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*
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* Purpose: initialize a pack_info_t structure
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*
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* Return: void
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*
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*-------------------------------------------------------------------------
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*/
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void init_packobject(pack_info_t *obj) {
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int j, k;
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HDstrcpy(obj->path, "\0");
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for (j = 0; j < H5_REPACK_MAX_NFILTERS; j++) {
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obj->filter[j].filtn = -1;
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for (k = 0; k < CD_VALUES; k++)
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obj->filter[j].cd_values[k] = 0;
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}
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obj->chunk.rank = -1;
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obj->refobj_id = -1;
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obj->layout = H5D_LAYOUT_ERROR;
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obj->nfilters = 0;
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}
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/*-------------------------------------------------------------------------
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* Function: aux_tblinsert_filter
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*
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* Purpose: auxiliary function, inserts the filter in object OBJS[ I ]
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*
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* Return: void
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*
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*-------------------------------------------------------------------------
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*/
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static void aux_tblinsert_filter(pack_opttbl_t *table, unsigned int I,
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filter_info_t filt) {
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if (table->objs[I].nfilters < H5_REPACK_MAX_NFILTERS) {
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table->objs[I].filter[table->objs[I].nfilters++] = filt;
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}
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else {
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error_msg(
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"cannot insert the filter in this object.\
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Maximum capacity exceeded\n");
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}
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}
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/*-------------------------------------------------------------------------
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* Function: aux_tblinsert_layout
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*
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* Purpose: auxiliary function, inserts the layout in object OBJS[ I ]
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*
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* Return: void
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*
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*-------------------------------------------------------------------------
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*/
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static void aux_tblinsert_layout(pack_opttbl_t *table, unsigned int I,
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pack_info_t *pack) {
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int k;
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table->objs[I].layout = pack->layout;
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if (H5D_CHUNKED == pack->layout) {
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/* -2 means the NONE option, remove chunking
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and set the layout to contiguous */
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if (pack->chunk.rank == -2) {
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table->objs[I].layout = H5D_CONTIGUOUS;
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table->objs[I].chunk.rank = -2;
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}
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/* otherwise set the chunking type */
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else {
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table->objs[I].chunk.rank = pack->chunk.rank;
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for (k = 0; k < pack->chunk.rank; k++)
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table->objs[I].chunk.chunk_lengths[k] =
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pack->chunk.chunk_lengths[k];
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}
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}
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}
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/*-------------------------------------------------------------------------
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* Function: aux_inctable
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*
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* Purpose: auxiliary function, increases the size of the collection by N_OBJS
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*
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* Return: 0, ok, -1, fail
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*
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*-------------------------------------------------------------------------
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*/
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static int aux_inctable(pack_opttbl_t *table, int n_objs) {
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unsigned int i;
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table->size += n_objs;
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table->objs =
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(pack_info_t*) HDrealloc(table->objs, table->size * sizeof(pack_info_t));
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if (table->objs == NULL) {
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error_msg("not enough memory for options table\n");
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return -1;
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}
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for (i = table->nelems; i < table->size; i++) {
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init_packobject(&table->objs[i]);
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}
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return 0;
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}
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/*-------------------------------------------------------------------------
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* Function: options_table_init
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*
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* Purpose: init options table
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*
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* Return: 0, ok, -1, fail
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*
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*-------------------------------------------------------------------------
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*/
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int options_table_init(pack_opttbl_t **tbl) {
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unsigned int i;
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pack_opttbl_t *table;
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if (NULL == (table = (pack_opttbl_t *) HDmalloc(sizeof(pack_opttbl_t)))) {
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error_msg("not enough memory for options table\n");
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return -1;
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}
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table->size = 30;
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table->nelems = 0;
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if (NULL == (table->objs =
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(pack_info_t*) HDmalloc(table->size * sizeof(pack_info_t)))) {
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error_msg("not enough memory for options table\n");
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HDfree(table);
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return -1;
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}
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for (i = 0; i < table->size; i++)
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init_packobject(&table->objs[i]);
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*tbl = table;
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return 0;
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}
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/*-------------------------------------------------------------------------
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* Function: options_table_free
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*
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* Purpose: free table memory
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*
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* Return: 0
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*
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*-------------------------------------------------------------------------
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*/
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int options_table_free(pack_opttbl_t *table) {
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HDfree(table->objs);
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HDfree(table);
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return 0;
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}
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/*-------------------------------------------------------------------------
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* Function: options_add_layout
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*
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* Purpose: add a layout option to the option list
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*
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* Return: 0, ok, -1, fail
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*
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*-------------------------------------------------------------------------
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*/
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int options_add_layout(obj_list_t *obj_list, int n_objs, pack_info_t *pack,
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pack_opttbl_t *table) {
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unsigned int i, I;
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int j, added = 0, found = 0;
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/* increase the size of the collection by N_OBJS if necessary */
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if (table->nelems + n_objs >= table->size) {
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if (aux_inctable(table, n_objs) < 0)
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return -1;
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}
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/* search if this object is already in the table; "path" is the key */
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if (table->nelems > 0) {
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/* go tru the supplied list of names */
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for (j = 0; j < n_objs; j++) {
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/* linear table search */
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for (i = 0; i < table->nelems; i++) {
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/*already on the table */
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if (HDstrcmp(obj_list[j].obj,table->objs[i].path) == 0) {
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/* already chunk info inserted for this one; exit */
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if (table->objs[i].chunk.rank > 0) {
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error_msg(
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"chunk information already inserted for <%s>\n",
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obj_list[j].obj);
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HDexit(EXIT_FAILURE);
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}
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/* insert the layout info */
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else {
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aux_tblinsert_layout(table, i, pack);
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found = 1;
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break;
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}
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} /* if */
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} /* i */
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if (found == 0) {
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/* keep the grow in a temp var */
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I = table->nelems + added;
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added++;
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HDstrcpy(table->objs[I].path, obj_list[j].obj);
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aux_tblinsert_layout(table, I, pack);
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}
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/* cases where we have an already inserted name but there is a new name also
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example:
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-f dset1:GZIP=1 -l dset1,dset2:CHUNK=20x20
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dset1 is already inserted, but dset2 must also be
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*/
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else if (found == 1
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&& HDstrcmp(obj_list[j].obj,table->objs[i].path) != 0) {
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/* keep the grow in a temp var */
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I = table->nelems + added;
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added++;
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HDstrcpy(table->objs[I].path, obj_list[j].obj);
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aux_tblinsert_layout(table, I, pack);
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}
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} /* j */
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}
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/* first time insertion */
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else {
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/* go tru the supplied list of names */
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for (j = 0; j < n_objs; j++) {
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I = table->nelems + added;
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added++;
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HDstrcpy(table->objs[I].path, obj_list[j].obj);
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aux_tblinsert_layout(table, I, pack);
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}
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}
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table->nelems += added;
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return 0;
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}
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/*-------------------------------------------------------------------------
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* Function: options_add_filter
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*
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* Purpose: add a compression -f option to the option list
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*
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* Return: 0, ok, -1, fail
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*
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*-------------------------------------------------------------------------
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*/
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int options_add_filter(obj_list_t *obj_list, int n_objs, filter_info_t filt,
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pack_opttbl_t *table) {
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unsigned int i, I;
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int j, added = 0, found = 0;
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/* increase the size of the collection by N_OBJS if necessary */
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if (table->nelems + n_objs >= table->size) {
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if (aux_inctable(table, n_objs) < 0)
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return -1;
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}
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/* search if this object is already in the table; "path" is the key */
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if (table->nelems > 0) {
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/* go tru the supplied list of names */
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for (j = 0; j < n_objs; j++) {
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/* linear table search */
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for (i = 0; i < table->nelems; i++) {
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/*already on the table */
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if (HDstrcmp(obj_list[j].obj,table->objs[i].path) == 0) {
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/* insert */
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aux_tblinsert_filter(table, i, filt);
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found = 1;
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break;
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} /* if */
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} /* i */
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if (found == 0) {
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/* keep the grow in a temp var */
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I = table->nelems + added;
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added++;
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HDstrcpy(table->objs[I].path, obj_list[j].obj);
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aux_tblinsert_filter(table, I, filt);
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}
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/* cases where we have an already inserted name but there is a new name also
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example:
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-l dset1:CHUNK=20x20 -f dset1,dset2:GZIP=1
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dset1 is already inserted, but dset2 must also be
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*/
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else if (found == 1
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&& HDstrcmp(obj_list[j].obj,table->objs[i].path) != 0) {
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/* keep the grow in a temp var */
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I = table->nelems + added;
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added++;
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HDstrcpy(table->objs[I].path, obj_list[j].obj);
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aux_tblinsert_filter(table, I, filt);
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}
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} /* j */
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}
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/* first time insertion */
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else {
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/* go tru the supplied list of names */
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for (j = 0; j < n_objs; j++) {
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I = table->nelems + added;
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added++;
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HDstrcpy(table->objs[I].path, obj_list[j].obj);
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aux_tblinsert_filter(table, I, filt);
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}
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}
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table->nelems += added;
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return 0;
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}
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/*-------------------------------------------------------------------------
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* Function: options_get_object
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*
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* Purpose: get object from table; "path" is the key
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*
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* Return: pack_info_t* OBJECT or NULL if not found; PATH is the key
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*
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*-------------------------------------------------------------------------
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*/
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pack_info_t* options_get_object(const char *path, pack_opttbl_t *table) {
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unsigned int i;
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char tbl_path[MAX_NC_NAME + 1]; /* +1 for start with "/" case */
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for (i = 0; i < table->nelems; i++) {
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/* make full path (start with "/") to compare correctly */
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if (HDstrncmp(table->objs[i].path, "/", 1)) {
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HDstrcpy(tbl_path, "/");
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HDstrcat(tbl_path, table->objs[i].path);
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}
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else
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HDstrcpy(tbl_path, table->objs[i].path);
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/* found it */
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if (HDstrcmp(tbl_path, path) == 0) {
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return (&table->objs[i]);
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}
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}
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return NULL;
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}
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