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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* Copyright by the Board of Trustees of the University of Illinois. *
* All rights reserved. *
* *
* This file is part of HDF5. The full HDF5 copyright notice, including *
* terms governing use, modification, and redistribution, is contained in *
* the files COPYING and Copyright.html. COPYING can be found at the root *
* of the source code distribution tree; Copyright.html can be found at the *
* root level of an installed copy of the electronic HDF5 document set and *
* is linked from the top-level documents page. It can also be found at *
* http://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include <string.h>
#include <stdlib.h>
#include <assert.h>
#include <stdio.h>
#include "H5DOprivate.h"
/*-------------------------------------------------------------------------
* Function: H5DOwrite_chunk
*
* Purpose: Writes an entire chunk to the file directly.
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* 30 July 2012
*
* Modifications:
*-------------------------------------------------------------------------
*/
herr_t
H5DOwrite_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters, hsize_t *offset,
size_t data_size, const void *buf)
{
htri_t created_dxpl = FALSE;
if(dset_id < 0)
goto error;
if(!buf)
goto error;
if(!offset)
goto error;
if(!data_size)
goto error;
if(H5P_DEFAULT == dxpl_id) {
dxpl_id = H5Pcreate(H5P_DATASET_XFER);
created_dxpl = TRUE;
}
if(H5DO_write_chunk(dset_id, dxpl_id, filters, offset, data_size, buf) < 0)
goto error;
if(created_dxpl) {
if(H5Pclose(dxpl_id) < 0)
goto error;
}
error:
return FAIL;
}
/*-------------------------------------------------------------------------
* Function: H5DO_write_chunk
*
* Purpose: Private function for H5DOwrite_chunk
*
* Return: Non-negative on success/Negative on failure
*
* Programmer: Raymond Lu
* 30 July 2012
*
* Modifications:
*-------------------------------------------------------------------------
*/
herr_t
H5DO_write_chunk(hid_t dset_id, hid_t dxpl_id, uint32_t filters, hsize_t *offset,
size_t data_size, const void *buf)
{
htri_t do_direct_write = TRUE;
if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME, &do_direct_write) < 0)
goto error;
if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_FILTERS_NAME, &filters) < 0)
goto error;
if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_OFFSET_NAME, &offset) < 0)
goto error;
if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_DATASIZE_NAME, &data_size) < 0)
goto error;
if(H5Dwrite(dset_id, 0, H5S_ALL, H5S_ALL, dxpl_id, buf) < 0)
goto error;
do_direct_write = FALSE;
if(H5Pset(dxpl_id, H5D_XFER_DIRECT_CHUNK_WRITE_FLAG_NAME, &do_direct_write) < 0)
goto error;
error:
return FAIL;
}
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