mirror of
https://github.com/HDFGroup/hdf5.git
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427ff7da28
Bug Fix/Code Cleanup/Doc Cleanup/Optimization/Branch Sync :-)
Description:
Generally speaking, this is the "signed->unsigned" change to selections.
However, in the process of merging code back, things got stickier and stickier
until I ended up doing a big "sync the two branches up" operation. So... I
brought back all the "infrastructure" fixes from the development branch to the
release branch (which I think were actually making some improvement in
performance) as well as fixed several bugs which had been fixed in one branch,
but not the other.
I've also tagged the repository before making this checkin with the label
"before_signed_unsigned_changes".
Platforms tested:
FreeBSD 4.10 (sleipnir) w/parallel & fphdf5
FreeBSD 4.10 (sleipnir) w/threadsafe
FreeBSD 4.10 (sleipnir) w/backward compatibility
Solaris 2.7 (arabica) w/"purify options"
Solaris 2.8 (sol) w/FORTRAN & C++
AIX 5.x (copper) w/parallel & FORTRAN
IRIX64 6.5 (modi4) w/FORTRAN
Linux 2.4 (heping) w/FORTRAN & C++
Misc. update:
232 lines
8.6 KiB
Fortran
232 lines
8.6 KiB
Fortran
! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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! Copyright by the Board of Trustees of the University of Illinois. *
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! All rights reserved. *
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! *
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! This file is part of HDF5. The full HDF5 copyright notice, including *
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! terms governing use, modification, and redistribution, is contained in *
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! the files COPYING and Copyright.html. COPYING can be found at the root *
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! of the source code distribution tree; Copyright.html can be found at the *
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! root level of an installed copy of the electronic HDF5 document set and *
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! is linked from the top-level documents page. It can also be found at *
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! http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html. If you do not have *
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! access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
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! * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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!
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!
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! This program creates a dataset that is one dimensional array of
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! structures {
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! character*2
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! integer
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! double precision
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! real
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! }
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! Data is written and read back by fields.
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!
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PROGRAM COMPOUNDEXAMPLE
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USE HDF5 ! This module contains all necessary modules
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IMPLICIT NONE
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CHARACTER(LEN=11), PARAMETER :: filename = "compound.h5" ! File name
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CHARACTER(LEN=8), PARAMETER :: dsetname = "Compound" ! Dataset name
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INTEGER, PARAMETER :: dimsize = 6 ! Size of the dataset
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INTEGER(HID_T) :: file_id ! File identifier
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INTEGER(HID_T) :: dset_id ! Dataset identifier
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INTEGER(HID_T) :: dspace_id ! Dataspace identifier
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INTEGER(HID_T) :: dtype_id ! Compound datatype identifier
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INTEGER(HID_T) :: dt1_id ! Memory datatype identifier (for character field)
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INTEGER(HID_T) :: dt2_id ! Memory datatype identifier (for integer field)
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INTEGER(HID_T) :: dt3_id ! Memory datatype identifier (for double precision field)
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INTEGER(HID_T) :: dt4_id ! Memory datatype identifier (for real field)
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INTEGER(HID_T) :: dt5_id ! Memory datatype identifier
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INTEGER(HID_T) :: plist_id ! Dataset trasfer property
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INTEGER(SIZE_T) :: typesize
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INTEGER(HSIZE_T), DIMENSION(1) :: dims = (/dimsize/) ! Dataset dimensions
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INTEGER :: rank = 1 ! Dataset rank
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INTEGER :: error ! Error flag
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INTEGER(SIZE_T) :: type_size ! Size of the datatype
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INTEGER(SIZE_T) :: type_sizec ! Size of the character datatype
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INTEGER(SIZE_T) :: type_sizei ! Size of the integer datatype
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INTEGER(SIZE_T) :: type_sized ! Size of the double precision datatype
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INTEGER(SIZE_T) :: type_sizer ! Size of the real datatype
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INTEGER(SIZE_T) :: offset ! Member's offset
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CHARACTER(LEN=2), DIMENSION(dimsize) :: char_member
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CHARACTER(LEN=2), DIMENSION(dimsize) :: char_member_out ! Buffer to read data out
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INTEGER, DIMENSION(dimsize) :: int_member
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DOUBLE PRECISION, DIMENSION(dimsize) :: double_member
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REAL, DIMENSION(dimsize) :: real_member
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INTEGER :: i
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INTEGER(HSIZE_T), DIMENSION(1) :: data_dims
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data_dims(1) = dimsize
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!
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! Initialize data buffer.
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!
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do i = 1, dimsize
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char_member(i)(1:1) = char(65+i)
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char_member(i)(2:2) = char(65+i)
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char_member_out(i)(1:1) = char(65)
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char_member_out(i)(2:2) = char(65)
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int_member(i) = i
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double_member(i) = 2.* i
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real_member(i) = 3. * i
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enddo
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!
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! Initialize FORTRAN interface.
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!
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CALL h5open_f(error)
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!
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! Set dataset transfer property to preserve partially initialized fields
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! during write/read to/from dataset with compound datatype.
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!
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CALL h5pcreate_f(H5P_DATASET_XFER_F, plist_id, error)
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CALL h5pset_preserve_f(plist_id, .TRUE., error)
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!
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! Create a new file using default properties.
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!
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CALL h5fcreate_f(filename, H5F_ACC_TRUNC_F, file_id, error)
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!
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! Create the dataspace.
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!
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CALL h5screate_simple_f(rank, dims, dspace_id, error)
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!
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! Create compound datatype.
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!
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! First calculate total size by calculating sizes of each member
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!
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CALL h5tcopy_f(H5T_NATIVE_CHARACTER, dt5_id, error)
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typesize = 2
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CALL h5tset_size_f(dt5_id, typesize, error)
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CALL h5tget_size_f(dt5_id, type_sizec, error)
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CALL h5tget_size_f(H5T_NATIVE_INTEGER, type_sizei, error)
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CALL h5tget_size_f(H5T_NATIVE_DOUBLE, type_sized, error)
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CALL h5tget_size_f(H5T_NATIVE_REAL, type_sizer, error)
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type_size = type_sizec + type_sizei + type_sized + type_sizer
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CALL h5tcreate_f(H5T_COMPOUND_F, type_size, dtype_id, error)
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!
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! Insert memebers
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!
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! CHARACTER*2 memeber
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!
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offset = 0
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CALL h5tinsert_f(dtype_id, "char_field", offset, dt5_id, error)
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!
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! INTEGER member
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!
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offset = offset + type_sizec ! Offset of the second memeber is 2
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CALL h5tinsert_f(dtype_id, "integer_field", offset, H5T_NATIVE_INTEGER, error)
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!
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! DOUBLE PRECISION member
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!
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offset = offset + type_sizei ! Offset of the third memeber is 6
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CALL h5tinsert_f(dtype_id, "double_field", offset, H5T_NATIVE_DOUBLE, error)
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!
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! REAL member
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!
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offset = offset + type_sized ! Offset of the last member is 14
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CALL h5tinsert_f(dtype_id, "real_field", offset, H5T_NATIVE_REAL, error)
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!
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! Create the dataset with compound datatype.
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!
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CALL h5dcreate_f(file_id, dsetname, dtype_id, dspace_id, &
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dset_id, error)
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!
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! Create memory types. We have to create a compound datatype
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! for each member we want to write.
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!
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CALL h5tcreate_f(H5T_COMPOUND_F, type_sizec, dt1_id, error)
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offset = 0
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CALL h5tinsert_f(dt1_id, "char_field", offset, dt5_id, error)
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!
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CALL h5tcreate_f(H5T_COMPOUND_F, type_sizei, dt2_id, error)
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offset = 0
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CALL h5tinsert_f(dt2_id, "integer_field", offset, H5T_NATIVE_INTEGER, error)
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!
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CALL h5tcreate_f(H5T_COMPOUND_F, type_sized, dt3_id, error)
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offset = 0
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CALL h5tinsert_f(dt3_id, "double_field", offset, H5T_NATIVE_DOUBLE, error)
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!
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CALL h5tcreate_f(H5T_COMPOUND_F, type_sizer, dt4_id, error)
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offset = 0
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CALL h5tinsert_f(dt4_id, "real_field", offset, H5T_NATIVE_REAL, error)
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!
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! Write data by fields in the datatype. Fields order is not important.
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!
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CALL h5dwrite_f(dset_id, dt4_id, real_member, data_dims, error, xfer_prp = plist_id)
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CALL h5dwrite_f(dset_id, dt1_id, char_member, data_dims, error, xfer_prp = plist_id)
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CALL h5dwrite_f(dset_id, dt3_id, double_member, data_dims, error, xfer_prp = plist_id)
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CALL h5dwrite_f(dset_id, dt2_id, int_member, data_dims, error, xfer_prp = plist_id)
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!
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! End access to the dataset and release resources used by it.
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!
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CALL h5dclose_f(dset_id, error)
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!
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! Terminate access to the data space.
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!
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CALL h5sclose_f(dspace_id, error)
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!
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! Terminate access to the datatype
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!
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CALL h5tclose_f(dtype_id, error)
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CALL h5tclose_f(dt1_id, error)
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CALL h5tclose_f(dt2_id, error)
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CALL h5tclose_f(dt3_id, error)
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CALL h5tclose_f(dt4_id, error)
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CALL h5tclose_f(dt5_id, error)
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!
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! Close the file.
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!
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CALL h5fclose_f(file_id, error)
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!
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! Open the file.
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!
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CALL h5fopen_f (filename, H5F_ACC_RDWR_F, file_id, error)
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!
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! Open the dataset.
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!
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CALL h5dopen_f(file_id, dsetname, dset_id, error)
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!
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! Create memeory datatyoe to read character member of the compound datatype.
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!
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CALL h5tcopy_f(H5T_NATIVE_CHARACTER, dt2_id, error)
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typesize = 2
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CALL h5tset_size_f(dt2_id, typesize, error)
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CALL h5tget_size_f(dt2_id, type_size, error)
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CALL h5tcreate_f(H5T_COMPOUND_F, type_size, dt1_id, error)
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offset = 0
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CALL h5tinsert_f(dt1_id, "char_field", offset, dt2_id, error)
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!
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! Read part of the datatset and display it.
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!
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CALL h5dread_f(dset_id, dt1_id, char_member_out, data_dims, error)
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write(*,*) (char_member_out(i), i=1, dimsize)
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!
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! Close all open objects.
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!
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CALL h5dclose_f(dset_id, error)
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CALL h5tclose_f(dt1_id, error)
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CALL h5tclose_f(dt2_id, error)
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CALL h5fclose_f(file_id, error)
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!
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! Close FORTRAN interface.
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!
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CALL h5close_f(error)
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END PROGRAM COMPOUNDEXAMPLE
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