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/* NBD client library in userspace
* Copyright Red Hat
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
/* Test the private data field. */
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <libnbd.h>
int
main (int argc, char *argv[])
{
struct nbd_handle *nbd1, *nbd2;
nbd1 = nbd_create ();
if (nbd1 == NULL) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
nbd2 = nbd_create ();
if (nbd2 == NULL) {
fprintf (stderr, "%s\n", nbd_get_error ());
exit (EXIT_FAILURE);
}
/* Check the field initially reads as zero. */
assert (nbd_get_private_data (nbd1) == 0);
assert (nbd_get_private_data (nbd2) == 0);
/* Set and read back the field. */
assert (nbd_set_private_data (nbd1, 42) == 0);
assert (nbd_get_private_data (nbd1) == 42);
/* Setting the field in one handle shouldn't affect the other. */
assert (nbd_set_private_data (nbd2, 999) == 0);
assert (nbd_get_private_data (nbd1) == 42);
assert (nbd_get_private_data (nbd2) == 999);
assert (nbd_set_private_data (nbd1, 43) == 42);
assert (nbd_get_private_data (nbd2) == 999);
assert (nbd_set_private_data (nbd2, 998) == 999);
assert (nbd_get_private_data (nbd1) == 43);
/* Check that (in C) we can store and retrieve a pointer. */
nbd_set_private_data (nbd1, (uintptr_t)&nbd_close);
assert (nbd_get_private_data (nbd1) == (uintptr_t)&nbd_close);
nbd_close (nbd2);
nbd_close (nbd1);
exit (EXIT_SUCCESS);
}
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