mirror of
https://github.com/HDFGroup/hdf5.git
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139 lines
4.6 KiB
C
139 lines
4.6 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 COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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#include "h5test.h"
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#include "vds_swmr.h"
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int
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main(void)
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{
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hid_t fid = -1; /* HDF5 file ID */
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hid_t did = -1; /* dataset ID */
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hid_t msid = -1; /* memory dataspace ID */
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hid_t fsid = -1; /* file dataspace ID */
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hsize_t start[RANK]; /* hyperslab start point */
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int n_elements = 0; /* size of buffer (elements) */
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size_t size = 0; /* size of buffer (bytes) */
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int *buffer = NULL; /* data buffer */
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int n_dims = -1; /* # dimensions in dataset */
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hsize_t dims[RANK]; /* current size of dataset */
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hsize_t max_dims[RANK]; /* max size of dataset */
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/* Open the VDS file and dataset */
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if((fid = H5Fopen(VDS_FILE_NAME, H5F_ACC_RDONLY | H5F_ACC_SWMR_READ, H5P_DEFAULT)) < 0)
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TEST_ERROR
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if((did = H5Dopen2(fid, VDS_DSET_NAME, H5P_DEFAULT)) < 0)
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TEST_ERROR
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/* Create the read buffer */
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n_elements = VDS_PLANE[1] * VDS_PLANE[2];
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size = n_elements * sizeof(int);
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if(NULL == (buffer = (int *)HDmalloc(size)))
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TEST_ERROR
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/* Create memory dataspace */
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if((msid = H5Screate_simple(RANK, VDS_PLANE, NULL)) < 0)
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TEST_ERROR
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/* Read data until the dataset is full (via the writer) */
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do {
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/* Refresh metadata */
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if(H5Drefresh(did) < 0)
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TEST_ERROR
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/* Get the dataset dimensions */
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if((fsid = H5Dget_space(did)) < 0)
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TEST_ERROR
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if(H5Sget_simple_extent_dims(fsid, dims, max_dims) < 0)
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TEST_ERROR
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/* Check the reported size of the VDS */
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if((n_dims = H5Sget_simple_extent_ndims(fsid)) < 0)
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TEST_ERROR
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if(n_dims != RANK)
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TEST_ERROR
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if(H5Sget_simple_extent_dims(fsid, dims, max_dims) < 0)
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TEST_ERROR
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/* NOTE: Don't care what dims[0] is. */
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if(dims[1] != FULL_HEIGHT)
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TEST_ERROR
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if(dims[2] != WIDTH)
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TEST_ERROR
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if(max_dims[0] != H5S_UNLIMITED)
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TEST_ERROR
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if(max_dims[1] != FULL_HEIGHT)
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TEST_ERROR
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if(max_dims[2] != WIDTH)
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TEST_ERROR
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/* Continue if there's nothing to read */
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if(0 == dims[0]) {
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if(H5Sclose(fsid) < 0)
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TEST_ERROR
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continue;
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}
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/* Read a plane from the VDS */
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/* At this time, we just make sure we can read planes without errors. */
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start[0] = dims[0] - 1;
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start[1] = 0;
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start[2] = 0;
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if(H5Sselect_hyperslab(fsid, H5S_SELECT_SET, start, NULL, VDS_PLANE, NULL) < 0)
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TEST_ERROR
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if(H5Dread(did, H5T_NATIVE_INT, msid, fsid, H5P_DEFAULT, buffer) < 0)
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TEST_ERROR
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if(H5Sclose(fsid) < 0)
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TEST_ERROR
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} while (dims[0] < N_PLANES_TO_WRITE);
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/* Close file and dataset */
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if(H5Sclose(msid) < 0)
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TEST_ERROR
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if(H5Dclose(did) < 0)
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TEST_ERROR
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if(H5Fclose(fid) < 0)
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TEST_ERROR
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HDfree(buffer);
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HDfprintf(stderr, "SWMR reader exited successfully\n");
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return EXIT_SUCCESS;
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error:
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H5E_BEGIN_TRY {
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if(fid >= 0)
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(void)H5Fclose(fid);
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if(did >= 0)
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(void)H5Dclose(did);
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if(msid >= 0)
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(void)H5Sclose(msid);
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if(fsid >= 0)
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(void)H5Sclose(fsid);
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if(buffer != NULL)
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HDfree(buffer);
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} H5E_END_TRY
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HDfprintf(stderr, "ERROR: SWMR reader exited with errors\n");
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return EXIT_FAILURE;
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} /* end main */
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