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//# tTiledFileAccess.h: Test program for class TiledFileAccess
//# Copyright (C) 2001,2002
//# Associated Universities, Inc. Washington DC, USA.
//#
//# This library is free software; you can redistribute it and/or modify it
//# under the terms of the GNU Library 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 Library General Public
//# License for more details.
//#
//# You should have received a copy of the GNU Library General Public License
//# along with this library; if not, write to the Free Software Foundation,
//# Inc., 675 Massachusetts Ave, Cambridge, MA 02139, USA.
//#
//# Correspondence concerning AIPS++ should be addressed as follows:
//# Internet email: casa-feedback@nrao.edu.
//# Postal address: AIPS++ Project Office
//# National Radio Astronomy Observatory
//# 520 Edgemont Road
//# Charlottesville, VA 22903-2475 USA
#include <casacore/tables/DataMan/TiledFileAccess.h>
#include <casacore/casa/BasicSL/String.h>
#include <casacore/casa/Arrays/IPosition.h>
#include <casacore/casa/Exceptions/Error.h>
#include <casacore/casa/Arrays/Array.h>
#include <casacore/casa/Arrays/ArrayMath.h>
#include <casacore/casa/Arrays/ArrayLogical.h>
#include <casacore/casa/IO/ArrayIO.h>
#include <casacore/casa/Arrays/Slicer.h>
#include <casacore/casa/IO/CanonicalIO.h>
#include <casacore/casa/IO/RawIO.h>
#include <casacore/casa/IO/RegularFileIO.h>
#include <casacore/casa/OS/RegularFile.h>
#include <casacore/casa/Utilities/Assert.h>
#include <casacore/casa/iostream.h>
#include <casacore/casa/namespace.h>
int main()
{
// Test for a Float array written in big endian canonical format starting
// at offset 0.
{
IPosition shape(2,16,32);
Array<Float> arr(shape);
indgen(arr);
{
Bool deleteIt;
const Float* dataPtr = arr.getStorage (deleteIt);
std::shared_ptr<ByteIO> fios
(new RegularFileIO(RegularFile("tTiledFileAccess_tmp.dat"), ByteIO::New));
CanonicalIO ios (fios);
ios.write (shape.product(), dataPtr);
arr.freeStorage (dataPtr, deleteIt);
}
try {
TiledFileAccess tfa ("tTiledFileAccess_tmp.dat", 0, shape,
IPosition(2,16,1), TpFloat, TSMOption::Cache,
False, True);
AlwaysAssertExit (tfa.shape() == shape);
AlwaysAssertExit (tfa.tileShape() == IPosition(2,16,1));
AlwaysAssertExit (! tfa.isWritable());
AlwaysAssertExit (tfa.maximumCacheSize() == 0);
cout << tfa.cacheSize() << endl;
tfa.setMaximumCacheSize (100000);
AlwaysAssertExit (tfa.maximumCacheSize() == 100000);
AlwaysAssertExit (allEQ (arr, tfa.getFloat (Slicer(IPosition(2,0,0),
shape))));
tfa.showCacheStatistics (cout);
cout << tfa.cacheSize() << endl;
} catch (std::exception& x) {
cout << "Exception: " << x.what() << endl;
return 1;
}
}
// Test for a Float array written in local format starting
// at offset 1. The tile size is half the length of the first axis.
// This assumes local format is the same as local canonical format
// which is true for all data types except long.
{
IPosition shape(2,32,16);
Array<Float> arr(shape);
indgen(arr);
uInt off2;
{
Bool deleteIt;
const Float* dataPtr = arr.getStorage (deleteIt);
std::shared_ptr<ByteIO> fios
(new RegularFileIO(RegularFile("tTiledFileAccess_tmp.dat"), ByteIO::New));
RawIO ios (fios);
uChar nr = 0;
off2 = ios.write (1, &nr);
ios.write (shape.product(), dataPtr);
arr.freeStorage (dataPtr, deleteIt);
}
try {
// The array starts at offset off2.
TiledFileAccess tfa ("tTiledFileAccess_tmp.dat", off2, shape,
IPosition(2,16,1), TpFloat,
TSMOption(TSMOption::MMap, 0, 1));
AlwaysAssertExit (tfa.shape() == shape);
AlwaysAssertExit (tfa.tileShape() == IPosition(2,16,1));
AlwaysAssertExit (! tfa.isWritable());
AlwaysAssertExit (tfa.maximumCacheSize() == 1024*1024);
cout << tfa.cacheSize() << endl;
tfa.setMaximumCacheSize (100000);
AlwaysAssertExit (tfa.maximumCacheSize() == 100000);
AlwaysAssertExit (allEQ (arr, tfa.getFloat (Slicer(IPosition(2,0,0),
shape))));
tfa.showCacheStatistics (cout);
cout << tfa.cacheSize() << endl;
} catch (std::exception& x) {
cout << "Exception: " << x.what() << endl;
return 1;
}
}
// Test for a DComplex array written in canonical and in local format.
// Open it writable and update the values.
// Check it after writing by iterating through the data.
{
IPosition shape(2,17,40);
Array<DComplex> arr(shape);
indgen(arr);
uInt off2;
{
Bool deleteIt;
const DComplex* dataPtr = arr.getStorage (deleteIt);
std::shared_ptr<ByteIO> fios
(new RegularFileIO(RegularFile("tTiledFileAccess_tmp.dat"), ByteIO::New));
CanonicalIO ios (fios);
off2 = ios.write (shape.product(), dataPtr);
RawIO cios (fios);
cios.write (shape.product(), dataPtr);
arr.freeStorage (dataPtr, deleteIt);
}
try {
Slicer slicer (IPosition(2,0,0), shape);
TiledFileAccess tfac ("tTiledFileAccess_tmp.dat", 0, shape,
IPosition(2,17,1), TpDComplex,
TSMOption::Cache, True, True);
AlwaysAssertExit (tfac.isWritable());
AlwaysAssertExit (allEQ (arr, tfac.getDComplex (slicer)));
AlwaysAssertExit (tfac.shape() == shape);
AlwaysAssertExit (tfac.tileShape() == IPosition(2,17,1));
TiledFileAccess tfal ("tTiledFileAccess_tmp.dat", off2, shape,
IPosition(2,17,1), TpDComplex,
TSMOption::Cache, True);
AlwaysAssertExit (allEQ (arr, tfal.getDComplex (slicer)));
tfac.put (tfac.getDComplex(slicer) + DComplex(1,2), slicer);
tfal.put (tfal.getDComplex(slicer) + DComplex(3,5), slicer);
} catch (std::exception& x) {
cout << "Exception: " << x.what() << endl;
return 1;
}
try {
TiledFileAccess tfac ("tTiledFileAccess_tmp.dat", 0, shape,
IPosition(2,17,1), TpDComplex,
TSMOption::Buffer, True, True);
AlwaysAssertExit (tfac.shape() == shape);
AlwaysAssertExit (tfac.tileShape() == IPosition(2,17,1));
TiledFileAccess tfal ("tTiledFileAccess_tmp.dat", off2, shape,
IPosition(2,17,1), TpDComplex,
TSMOption::Buffer, True);
IPosition st(2,0,0);
IPosition end(2,15,0);
IPosition leng(2,16,1);
for (Int i=0; i<shape(0); i++) {
st(1) = i;
end(1) = i;
AlwaysAssertExit (allEQ (arr(st,end) + DComplex(1,2),
tfac.getDComplex (Slicer(st,leng))));
AlwaysAssertExit (allEQ (arr(st,end) + DComplex(3,5),
tfal.getDComplex (Slicer(st,leng))));
}
cout << end << endl;
} catch (std::exception& x) {
cout << "Exception: " << x.what() << endl;
return 1;
}
}
// Test for a uChar array written in canonical format.
// Read it also back as Float with a scale and offset.
{
IPosition shape(2,10,10);
Array<uChar> arrs(shape);
Array<Float> arrf(shape);
Float scale = 2;
Float offset = 2;
indgen(arrs);
indgen(arrf, float(2), float(2));
{
Bool deleteIt;
const uChar* dataPtr = arrs.getStorage (deleteIt);
std::shared_ptr<ByteIO> fios
(new RegularFileIO(RegularFile("tTiledFileAccess_tmp.dat"), ByteIO::New));
CanonicalIO ios (fios);
ios.write (shape.product(), dataPtr);
arrs.freeStorage (dataPtr, deleteIt);
}
try {
Slicer slicer (IPosition(2,0,0), shape);
TiledFileAccess tfac ("tTiledFileAccess_tmp.dat", 0, shape,
IPosition(2,10,5), TpUChar,
TSMOption::Cache, True, True);
AlwaysAssertExit (allEQ (arrs, tfac.getUChar (slicer)));
AlwaysAssertExit (allEQ (arrf, tfac.getFloat (slicer, scale, offset,
uChar(255))));
AlwaysAssertExit (tfac.shape() == shape);
AlwaysAssertExit (tfac.tileShape() == IPosition(2,10,5));
} catch (std::exception& x) {
cout << "Exception: " << x.what() << endl;
return 1;
}
}
// Test for a Short array written in canonical format.
// Read it also back as Float with a scale and offset.
{
IPosition shape(2,17,40);
Array<Short> arrs(shape);
Array<Float> arrf(shape);
Float scale = 2;
Float offset = -10;
indgen(arrs);
indgen(arrf, float(-10), float(2));
{
Bool deleteIt;
const Short* dataPtr = arrs.getStorage (deleteIt);
std::shared_ptr<ByteIO> fios
(new RegularFileIO(RegularFile("tTiledFileAccess_tmp.dat"), ByteIO::New));
CanonicalIO ios (fios);
ios.write (shape.product(), dataPtr);
arrs.freeStorage (dataPtr, deleteIt);
}
try {
Slicer slicer (IPosition(2,0,0), shape);
TiledFileAccess tfac ("tTiledFileAccess_tmp.dat", 0, shape,
IPosition(2,17,4), TpShort,
TSMOption::Cache, True, True);
AlwaysAssertExit (allEQ (arrs, tfac.getShort (slicer)));
AlwaysAssertExit (allEQ (arrf, tfac.getFloat (slicer, scale, offset,
short(-32768))));
AlwaysAssertExit (tfac.shape() == shape);
AlwaysAssertExit (tfac.tileShape() == IPosition(2,17,4));
} catch (std::exception& x) {
cout << "Exception: " << x.what() << endl;
return 1;
}
}
// Test the tileShape function in various ways.
{
try {
cout << TiledFileAccess::makeTileShape (IPosition(2,17,40)) << endl;
cout << TiledFileAccess::makeTileShape (IPosition(2,17,40), 17) << endl;
cout << TiledFileAccess::makeTileShape (IPosition(2,17,40), 34) << endl;
cout << TiledFileAccess::makeTileShape (IPosition(2,17,40), 33) << endl;
cout << TiledFileAccess::makeTileShape (IPosition(2,17,40), 15) << endl;
cout << TiledFileAccess::makeTileShape (IPosition(2,17,40), 3) << endl;
} catch (std::exception& x) {
cout << "Exception: " << x.what() << endl;
return 1;
}
}
return 0;
}
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