1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/*
* Programmer: Quincey Koziol <koziol@hdfgroup.org>
* Thursday, October 8, 2009
*
* Purpose: Create a file with a dataset who's raw data immediately follows
* its object header, so that when the dataset is unlinked from its parent
* group, a speculative read of the object header would get the raw data
* into the metadata accumulator, "polluting" it.
* To build the test file, this program MUST be compiled and linked with
* the library on the trunk as of when this file is checked in.
*/
#include "h5test.h"
#define FILENAME "specmetaread.h5"
#define DIM 10
int
main(void)
{
hid_t fid;
hid_t fapl;
hid_t did;
hid_t space;
hsize_t dim[1] = {DIM};
unsigned data[DIM];
unsigned u;
herr_t H5_ATTR_NDEBUG_UNUSED ret;
/* Initialize the data */
for(u = 0; u < DIM; u++)
data[u] = u;
/* Create a FAPL with the metadata and small data aggregators turned off */
fapl = H5Pcreate(H5P_FILE_ACCESS);
assert(fapl > 0);
ret = H5Pset_meta_block_size(fapl, (hsize_t)0);
assert(ret >= 0);
ret = H5Pset_small_data_block_size(fapl, (hsize_t)0);
assert(ret >= 0);
/* Create file */
fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, fapl);
assert(fid > 0);
/* Close FAPL */
ret = H5Pclose(fapl);
assert(ret >= 0);
/* Create dataspace */
space = H5Screate_simple(1, dim, NULL);
assert(space > 0);
/* Create dataset #1 */
did = H5Dcreate2(fid, "dset1", H5T_NATIVE_UINT, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
assert(did > 0);
ret = H5Dwrite(did, H5T_NATIVE_UINT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data);
assert(ret >= 0);
ret = H5Dclose(did);
assert(ret >= 0);
/* Create dataset #2 */
did = H5Dcreate2(fid, "dset2", H5T_NATIVE_UINT, space, H5P_DEFAULT, H5P_DEFAULT, H5P_DEFAULT);
assert(did > 0);
ret = H5Dwrite(did, H5T_NATIVE_UINT, H5S_ALL, H5S_ALL, H5P_DEFAULT, data);
assert(ret >= 0);
ret = H5Dclose(did);
assert(ret >= 0);
/* Close dataspace */
ret = H5Sclose(space);
assert(ret >= 0);
/* Close file */
ret = H5Fclose(fid);
assert(ret >= 0);
return 0;
}
|
