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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 COPYING file, which can be found at the root of the source code
* distribution tree, or in https://support.hdfgroup.org/ftp/HDF5/releases.
* If you do not have access to either file, you may request a copy from
* help@hdfgroup.org.
*/
#include <err.h>
#include <time.h> /* nanosleep(2) */
#include <unistd.h> /* getopt(3) */
#define H5C_FRIEND /*suppress error about including H5Cpkg */
#define H5F_FRIEND /*suppress error about including H5Fpkg */
#include "hdf5.h"
#include "H5Cpkg.h"
#include "H5Fpkg.h"
// #include "H5Iprivate.h"
#include "H5HGprivate.h"
#include "H5VLprivate.h"
#include "testhdf5.h"
#include "vfd_swmr_common.h"
enum _step {
CREATE = 0
, LENGTHEN
, SHORTEN
, DELETE
, NSTEPS
} step_t;
static const hid_t badhid = H5I_INVALID_HID; // abbreviate
static bool caught_out_of_bounds = false;
static void
read_vl_dset(hid_t dset, hid_t type, hid_t space, char *data)
{
if (H5Dread(dset, type, H5S_ALL, H5S_ALL, H5P_DEFAULT, &data) < 0)
errx(EXIT_FAILURE, "%s: H5Dwrite", __func__);
}
static hid_t
open_vl_dset(hid_t file, hid_t type, const char *name)
{
hid_t dset;
dset = H5Dopen(file, name, H5P_DEFAULT);
if (dset == badhid)
errx(EXIT_FAILURE, "H5Dopen");
return dset;
}
static void
usage(const char *progname)
{
fprintf(stderr, "usage: %s [-W] [-V]\n", progname);
fprintf(stderr, "\n -W: do not wait for SIGUSR1\n");
fprintf(stderr, " -n: number of test steps to perform\n");
exit(EXIT_FAILURE);
}
bool
H5HG_trap(const char *reason)
{
if (strcmp(reason, "out of bounds") == 0) {
caught_out_of_bounds = true;
return false;
}
return true;
}
int
main(int argc, char **argv)
{
hid_t fapl, fid, space, type;
hid_t dset[2];
char content[2][96];
char name[2][96];
H5F_vfd_swmr_config_t config;
sigset_t oldsigs;
herr_t ret;
bool wait_for_signal = true;
const hsize_t dims = 1;
int ch, i, ntimes = 100;
unsigned long tmp;
char *end;
const struct timespec delay =
{.tv_sec = 0, .tv_nsec = 1000 * 1000 * 1000 / 10};
assert(H5T_C_S1 != badhid);
while ((ch = getopt(argc, argv, "Wn:")) != -1) {
switch(ch) {
case 'W':
wait_for_signal = false;
break;
case 'n':
errno = 0;
tmp = strtoul(optarg, &end, 0);
if (end == optarg || *end != '\0')
errx(EXIT_FAILURE, "couldn't parse `-n` argument `%s`", optarg);
else if (errno != 0)
err(EXIT_FAILURE, "couldn't parse `-n` argument `%s`", optarg);
else if (tmp > INT_MAX)
errx(EXIT_FAILURE, "`-n` argument `%lu` too large", tmp);
ntimes = (int)tmp;
break;
default:
usage(argv[0]);
break;
}
}
argv += optind;
argc -= optind;
if (argc > 0)
errx(EXIT_FAILURE, "unexpected command-line arguments");
/* Create file access property list */
if((fapl = h5_fileaccess()) < 0)
errx(EXIT_FAILURE, "h5_fileaccess");
/* FOR NOW: set to use latest format, the "old" parameter is not used */
if(H5Pset_libver_bounds(fapl, H5F_LIBVER_LATEST, H5F_LIBVER_LATEST) < 0)
errx(EXIT_FAILURE, "H5Pset_libver_bounds");
/*
* Set up to open the file with VFD SWMR configured.
*/
/* Enable page buffering */
if(H5Pset_page_buffer_size(fapl, 4096, 100, 0) < 0)
errx(EXIT_FAILURE, "H5Pset_page_buffer_size");
memset(&config, 0, sizeof(config));
config.version = H5F__CURR_VFD_SWMR_CONFIG_VERSION;
config.tick_len = 1;
config.max_lag = 5;
config.writer = true;
config.md_pages_reserved = 128;
HDstrcpy(config.md_file_path, "./my_md_file");
/* Enable VFD SWMR configuration */
if(H5Pset_vfd_swmr_config(fapl, &config) < 0)
errx(EXIT_FAILURE, "H5Pset_vfd_swmr_config");
fid = H5Fopen("vfd_swmr_vlstr.h5", H5F_ACC_RDONLY, fapl);
/* Create the VL string datatype and a scalar dataspace, or a
* fixed-length string datatype and a simple dataspace.
*/
if ((type = H5Tcopy(H5T_C_S1)) == badhid)
errx(EXIT_FAILURE, "H5Tcopy");
/* Create the VL string datatype and a scalar dataspace */
if ((type = H5Tcopy(H5T_C_S1)) == badhid)
errx(EXIT_FAILURE, "H5Tcopy");
if (H5Tset_size(type, H5T_VARIABLE) < 0)
errx(EXIT_FAILURE, "H5Tset_size");
space = H5Screate(H5S_SCALAR);
if (space == badhid)
errx(EXIT_FAILURE, "H5Screate");
if (fid == badhid)
errx(EXIT_FAILURE, "H5Fcreate");
block_signals(&oldsigs);
/* content 1 seq 1 short
* content 1 seq 1 long long long long long long long long
* content 1 seq 1 medium medium medium
*/
for (i = 0; i < ntimes; i++) {
const int ndsets = 2;
const int which = i % ndsets;
fprintf(stderr, "iteration %d which %d\n", i, which);
(void)snprintf(name[which], sizeof(name[which]),
"dset-%d", which);
dset[which] = open_vl_dset(fid, type, name[which]);
read_vl_dset(dset[which], type, space, content[which]);
#if 0
(void)snprintf(content[which], sizeof(content[which]),
"content %d seq %d %s", which, seq, tail);
#endif
if (caught_out_of_bounds) {
fprintf(stderr, "caught out of bounds\n");
break;
}
nanosleep(&delay, NULL);
}
if (wait_for_signal)
await_signal(fid);
restore_signals(&oldsigs);
if (H5Pclose(fapl) < 0)
errx(EXIT_FAILURE, "H5Pclose(fapl)");
if (H5Tclose(type) < 0)
errx(EXIT_FAILURE, "H5Tclose");
if (H5Sclose(space) < 0)
errx(EXIT_FAILURE, "H5Sclose");
if (H5Fclose(fid) < 0)
errx(EXIT_FAILURE, "H5Fclose");
return EXIT_SUCCESS;
}
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