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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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* This shows how to use the hdf5 virtual file drivers.
* The example codes here do not check return values for the
* sake of simplicity. As in all proper programs, return codes
* should be checked.
*/
#include "hdf5.h"
#include "stdlib.h"
/* global variables */
int cleanup_g = -1; /* whether to clean. Init to not set. */
/* prototypes */
void cleanup(const char *);
void split_file(void);
/*
* Cleanup a file unless $HDF5_NOCLEANUP is set.
*/
void
cleanup(const char *filename)
{
if (cleanup_g == -1)
cleanup_g = getenv("HDF5_NOCLEANUP") ? 0 : 1;
if (cleanup_g)
remove(filename);
}
/*
* This shows how to use the split file driver.
*/
void
split_file(void)
{
hid_t fapl, fid;
/* Example 1: Both metadata and rawdata files are in the same */
/* directory. Use Station1-m.h5 and Station1-r.h5 as */
/* the metadata and rawdata files. */
fapl = H5Pcreate(H5P_FILE_ACCESS);
H5Pset_fapl_split(fapl, "-m.h5", H5P_DEFAULT, "-r.h5", H5P_DEFAULT);
fid = H5Fcreate("Station1", H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
/* using the file ... */
H5Fclose(fid);
H5Pclose(fapl);
/* Remove files created */
cleanup("Station1-m.h5");
cleanup("Station1-r.h5");
/* Example 2: metadata and rawdata files are in different */
/* directories. Use PointA-m.h5 and /tmp/PointA-r.h5 as */
/* the metadata and rawdata files. */
fapl = H5Pcreate(H5P_FILE_ACCESS);
H5Pset_fapl_split(fapl, "-m.h5", H5P_DEFAULT, "/tmp/%s-r.h5", H5P_DEFAULT);
fid = H5Fcreate("PointA", H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
/* using the file ... */
H5Fclose(fid);
H5Pclose(fapl);
/* Remove files created */
cleanup("PointA-m.h5");
cleanup("/tmp/PointA-r.h5");
/* Example 3: Using default extension names for the metadata */
/* and rawdata files. Use Measure.meta and Measure.raw as */
/* the metadata and rawdata files. */
fapl = H5Pcreate(H5P_FILE_ACCESS);
H5Pset_fapl_split(fapl, NULL, H5P_DEFAULT, NULL, H5P_DEFAULT);
fid = H5Fcreate("Measure", H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
/* using the file ... */
H5Fclose(fid);
H5Pclose(fapl);
/* Remove files created */
cleanup("Measure.meta");
cleanup("Measure.raw");
}
/* Main Body */
int
main(void)
{
split_file();
return (0);
}
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