138 lines
3.9 KiB
C
138 lines
3.9 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 <string.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <stdio.h>
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#include "H5DOprivate.h"
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/*-------------------------------------------------------------------------
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* Function: H5DOwrite_chunk
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*
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* Purpose: Writes an entire chunk to the file directly.
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Raymond Lu
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* 30 July 2012
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*
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* Modifications:
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5DOwrite_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters, const hsize_t *offset,
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size_t data_size, const void *buf)
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{
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hbool_t created_dxpl = FALSE;
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herr_t ret_value = SUCCEED; /* Return value */
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if(dset_id < 0) {
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ret_value = FAIL;
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goto done;
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}
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if(!buf) {
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ret_value = FAIL;
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goto done;
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}
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if(!offset) {
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ret_value = FAIL;
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goto done;
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}
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if(!data_size) {
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ret_value = FAIL;
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goto done;
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}
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if(H5P_DEFAULT == dxpl_id) {
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if((dxpl_id = H5Pcreate(H5P_DATASET_XFER)) < 0) {
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ret_value = FAIL;
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goto done;
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}
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created_dxpl = TRUE;
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}
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if(H5DO_write_chunk(dset_id, dxpl_id, filters, offset, data_size, buf) < 0) {
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ret_value = FAIL;
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goto done;
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}
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done:
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if(created_dxpl) {
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if(H5Pclose(dxpl_id) < 0)
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ret_value = FAIL;
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}
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return ret_value;
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}
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/*-------------------------------------------------------------------------
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* Function: H5DO_write_chunk
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*
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* Purpose: Private function for H5DOwrite_chunk
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*
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* Return: Non-negative on success/Negative on failure
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*
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* Programmer: Raymond Lu
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* 30 July 2012
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*
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* Modifications:
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*-------------------------------------------------------------------------
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*/
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herr_t
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H5DO_write_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters, const hsize_t *offset,
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size_t data_size, const void *buf)
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{
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hbool_t do_direct_write = TRUE;
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herr_t ret_value = SUCCEED; /* Return value */
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if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME, &do_direct_write) < 0) {
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ret_value = FAIL;
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goto done;
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}
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if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME, &filters) < 0) {
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ret_value = FAIL;
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goto done;
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}
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if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME, &offset) < 0) {
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ret_value = FAIL;
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goto done;
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}
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if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME, &data_size) < 0) {
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ret_value = FAIL;
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goto done;
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}
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if(H5Dwrite(dset_id, 0, H5S_ALL, H5S_ALL, dxpl_id, buf) < 0) {
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ret_value = FAIL;
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goto done;
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}
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done:
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do_direct_write = FALSE;
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if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME, &do_direct_write) < 0)
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ret_value = FAIL;
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return ret_value;
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}
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