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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* Copyright by The HDF Group. *
* 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 COPYING file, which can be found at the root of the source code *
* distribution tree, or in https://www.hdfgroup.org/licenses. *
* If you do not have access to either file, you may request a copy from *
* help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
#include "h5test.h"
#include "vds_swmr.h"
int
main(int argc, char *argv[])
{
int file_number = -1; /* Source file number */
hid_t fid = H5I_INVALID_HID; /* HDF5 file ID */
hid_t faplid = H5I_INVALID_HID; /* file access property list ID */
hid_t did = H5I_INVALID_HID; /* dataset ID */
hid_t msid = H5I_INVALID_HID; /* memory dataspace ID */
hid_t fsid = H5I_INVALID_HID; /* file dataspace ID */
hsize_t extent[RANK]; /* dataset extents */
hsize_t start[RANK]; /* hyperslab start point */
int *buffer = NULL; /* data buffer */
int value = -1; /* value written to datasets */
hsize_t n_elements = 0; /* number of elements in a plane */
hsize_t i; /* iterator */
hsize_t j; /* iterator */
/******************************
* Fill a source dataset file *
******************************/
/* The file number is passed on the command line.
* This is an integer index into the FILE_NAMES array.
*/
if (argc != 2) {
fprintf(stderr, "ERROR: Must pass the source file number on the command line.\n");
return EXIT_FAILURE;
}
file_number = atoi(argv[1]);
if (file_number < 0 || file_number >= N_SOURCES)
TEST_ERROR;
/* Open the source file and dataset */
/* All SWMR files need to use the latest file format */
if ((faplid = h5_fileaccess()) < 0)
TEST_ERROR;
if (H5Pset_libver_bounds(faplid, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
TEST_ERROR;
if ((fid = H5Fopen(FILE_NAMES[file_number], H5F_ACC_RDWR | H5F_ACC_SWMR_WRITE, faplid)) < 0)
TEST_ERROR;
if ((did = H5Dopen2(fid, SOURCE_DSET_PATH, H5P_DEFAULT)) < 0)
TEST_ERROR;
/* Create a data buffer that represents a plane */
n_elements = PLANES[file_number][1] * PLANES[file_number][2];
if (NULL == (buffer = (int *)malloc(n_elements * sizeof(int))))
TEST_ERROR;
/* Create the memory dataspace */
if ((msid = H5Screate_simple(RANK, PLANES[file_number], NULL)) < 0)
TEST_ERROR;
/* Write planes to the dataset */
for (i = 0; i < N_PLANES_TO_WRITE; i++) {
time_t delay; /* Time interval between plane writes */
/* Cork the dataset's metadata in the cache */
if (H5Odisable_mdc_flushes(did) < 0)
TEST_ERROR;
/* Set the dataset's extent. This is inefficient but that's ok here. */
extent[0] = i + 1;
extent[1] = PLANES[file_number][1];
extent[2] = PLANES[file_number][2];
if (H5Dset_extent(did, extent) < 0)
TEST_ERROR;
/* Get the file dataspace */
if ((fsid = H5Dget_space(did)) < 0)
TEST_ERROR;
/* Each plane is filled with the plane number as a data value. */
value = (((int)i + 1) * 10) + (int)i;
for (j = 0; j < n_elements; j++)
buffer[j] = value;
/* Set up the hyperslab for writing. */
start[0] = i;
start[1] = 0;
start[2] = 0;
if (H5Sselect_hyperslab(fsid, H5S_SELECT_SET, start, NULL, PLANES[file_number], NULL) < 0)
TEST_ERROR;
/* Write the plane to the dataset. */
if (H5Dwrite(did, H5T_NATIVE_INT, msid, fsid, H5P_DEFAULT, buffer) < 0)
TEST_ERROR;
/* Uncork the dataset's metadata from the cache */
if (H5Oenable_mdc_flushes(did) < 0)
TEST_ERROR;
/* Wait one second between writing planes */
delay = HDtime(0) + (time_t)1;
while (HDtime(0) < delay)
;
/* Flush */
if (H5Fflush(fid, H5F_SCOPE_GLOBAL) < 0)
TEST_ERROR;
} /* end for */
if (H5Pclose(faplid) < 0)
TEST_ERROR;
if (H5Sclose(msid) < 0)
TEST_ERROR;
if (H5Sclose(fsid) < 0)
TEST_ERROR;
if (H5Dclose(did) < 0)
TEST_ERROR;
if (H5Fclose(fid) < 0)
TEST_ERROR;
free(buffer);
fprintf(stderr, "SWMR writer exited successfully\n");
return EXIT_SUCCESS;
error:
H5E_BEGIN_TRY
{
if (fid >= 0)
(void)H5Fclose(fid);
if (faplid >= 0)
(void)H5Pclose(faplid);
if (did >= 0)
(void)H5Dclose(did);
if (msid >= 0)
(void)H5Sclose(msid);
if (fsid >= 0)
(void)H5Sclose(fsid);
if (buffer != NULL)
free(buffer);
}
H5E_END_TRY
fprintf(stderr, "ERROR: SWMR writer exited with errors\n");
return EXIT_FAILURE;
} /* end main */
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