summaryrefslogtreecommitdiffstats
path: root/fortran/test/fflush1.f90
blob: 6c1cad880e236cfccd85ffdb15461f52eafba475 (plain)
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
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
!   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 files COPYING and Copyright.html.  COPYING can be found at the root   *
!   of the source code distribution tree; Copyright.html can be found at the  *
!   root level of an installed copy of the electronic HDF5 document set and   *
!   is linked from the top-level documents page.  It can also be found at     *
!   http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
!   access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * 
!
!
! Purpose:	This is the first half of a two-part test that makes sure
!		that a file can be read after an application crashes as long
!		as the file was flushed first.  We simulate by exit the 
!              the program using stop statement
!

     PROGRAM FFLUSH1EXAMPLE

     USE HDF5 ! This module contains all necessary modules 
        
     IMPLICIT NONE

     !
     !the respective filename is "fflush1.h5" 
     !
     CHARACTER(LEN=7), PARAMETER :: filename = "fflush1"
     CHARACTER(LEN=80) :: fix_filename

     !
     !data space rank and dimensions
     !
     INTEGER, PARAMETER :: RANK = 2
     INTEGER, PARAMETER :: NX = 4
     INTEGER, PARAMETER :: NY = 5

     !
     ! File identifiers
     !
     INTEGER(HID_T) :: file_id 
     
     !
     ! Group identifier
     !
     INTEGER(HID_T) :: gid 

     !
     ! dataset identifier
     !
     INTEGER(HID_T) :: dset_id
 
     !
     ! data space identifier
     !
     INTEGER(HID_T) :: dataspace
 
     !
     ! data type identifier
     !
     INTEGER(HID_T) :: dtype_id

     ! 
     !The dimensions for the dataset.
     !
     INTEGER(HSIZE_T), DIMENSION(2) :: dims = (/NX,NY/)

     !
     !flag to check operation success 
     !         
     INTEGER     ::   error

     !
     !general purpose integer 
     !         
     INTEGER     ::   i, j, total_error = 0

     !
     !data buffers 
     !         
     INTEGER, DIMENSION(NX,NY) :: data_in, data_out
     INTEGER(HSIZE_T), DIMENSION(2) :: data_dims
     data_dims(1) = NX
     data_dims(2) = NY

     !
     !Initialize FORTRAN predifined datatypes
     !
     CALL h5open_f(error) 
          CALL check("h5open_f",error,total_error)

     !
     !Initialize data_in buffer
     !
     do i = 1, NX
          do j = 1, NY
               data_in(i,j) =  (i-1) + (j-1)
          end do
     end do

     !
     !Create file "fflush1.h5" using default properties.
     ! 
          CALL h5_fixname_f(filename, fix_filename, H5P_DEFAULT_F, error)
          if (error .ne. 0) then
              write(*,*) "Cannot modify filename"
              stop
          endif
     CALL h5fcreate_f(fix_filename, H5F_ACC_TRUNC_F, file_id, error)
          CALL check("h5fcreate_f",error,total_error)

     !
     !Create group "/G" inside file "fflush1.h5".
     ! 
     CALL h5gcreate_f(file_id, "/G", gid, error)
          CALL check("h5gcreate_f",error,total_error)

     !
     !Create data space for the dataset. 
     !
     CALL h5screate_simple_f(RANK, dims, dataspace, error)
          CALL check("h5screate_simple_f",error,total_error)

     !
     !Create dataset "/D" inside file "fflush1.h5".
     ! 
     CALL h5dcreate_f(file_id, "/D", H5T_NATIVE_INTEGER, dataspace, &
                      dset_id, error)
          CALL check("h5dcreate_f",error,total_error)
 
     !
     ! Write data_in to the dataset
     !
     CALL h5dwrite_f(dset_id, H5T_NATIVE_INTEGER, data_in, data_dims, error)
          CALL check("h5dwrite_f",error,total_error)
  
     !
     !flush and exit without closing the library
     !
     CALL H5fflush_f(file_id, H5F_SCOPE_GLOBAL_F, error)
          CALL check("h5fflush_f",error,total_error)

     ! if errors detected, exit with non-zero code. This is not truly fortran
     ! standard but likely supported by most fortran compilers.
     IF (total_error .ne. 0) CALL exit (total_error)


     001 STOP


     END PROGRAM FFLUSH1EXAMPLE