mirror of
https://github.com/HDFGroup/hdf5.git
synced 2024-11-27 02:10:55 +08:00
93fd360fb1
Feature
Description:
Added an example program showing how to use different virtual
file drivers. First example is to show the Split File driver.
Platforms tested:
eirene.
90 lines
2.4 KiB
C
90 lines
2.4 KiB
C
/*
|
|
* 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);
|
|
}
|