Python filesystem_supports_sparse_files Exemples

Exemple #1

Fichier : vsifile.py Projet : alanstewart-terragotech/gdal

def test_vsifile_6():

    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        pytest.skip()

    offset = 4 * 1024 * 1024 * 1024

    ref_data = 'abcd'.encode('ascii')
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'wb')
    gdal.VSIFSeekL(fp, offset, 0)
    gdal.VSIFWriteL(ref_data, 1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    # Sanity check without VSI_CACHE
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'rb')
    gdal.VSIFSeekL(fp, offset, 0)
    got_data = gdal.VSIFReadL(1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    assert ref_data == got_data

    # Real test now
    gdal.SetConfigOption('VSI_CACHE', 'YES')
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'rb')
    gdal.SetConfigOption('VSI_CACHE', None)
    gdal.VSIFSeekL(fp, offset, 0)
    got_data = gdal.VSIFReadL(1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    assert ref_data == got_data

    gdal.Unlink('tmp/vsifile_6.bin')

Exemple #2

Fichier : vsifile.py Projet : AsgerPetersen/gdal

def test_vsifile_6():

    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        pytest.skip()

    offset = 4 * 1024 * 1024 * 1024

    ref_data = 'abcd'.encode('ascii')
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'wb')
    gdal.VSIFSeekL(fp, offset, 0)
    gdal.VSIFWriteL(ref_data, 1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    # Sanity check without VSI_CACHE
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'rb')
    gdal.VSIFSeekL(fp, offset, 0)
    got_data = gdal.VSIFReadL(1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    assert ref_data == got_data

    # Real test now
    gdal.SetConfigOption('VSI_CACHE', 'YES')
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'rb')
    gdal.SetConfigOption('VSI_CACHE', None)
    gdal.VSIFSeekL(fp, offset, 0)
    got_data = gdal.VSIFReadL(1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    assert ref_data == got_data

    gdal.Unlink('tmp/vsifile_6.bin')

Exemple #3

Fichier : vsifile.py Projet : alanstewart-terragotech/gdal

def test_vsifile_3():

    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        pytest.skip()

    filename = 'tmp/vsifile_3'

    fp = gdal.VSIFOpenL(filename, 'wb+')
    gdal.VSIFTruncateL(fp, 10 * 1024 * 1024 * 1024)
    gdal.VSIFSeekL(fp, 0, 2)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        pytest.fail(pos)
    gdal.VSIFSeekL(fp, 0, 0)
    gdal.VSIFSeekL(fp, pos, 0)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        pytest.fail(pos)

    gdal.VSIFCloseL(fp)

    statBuf = gdal.VSIStatL(filename, gdal.VSI_STAT_EXISTS_FLAG | gdal.VSI_STAT_NATURE_FLAG | gdal.VSI_STAT_SIZE_FLAG)
    gdal.Unlink(filename)

    assert statBuf.size == 10 * 1024 * 1024 * 1024

Exemple #4

Fichier : vsifile.py Projet : AsgerPetersen/gdal

def test_vsifile_3():

    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        pytest.skip()

    filename = 'tmp/vsifile_3'

    fp = gdal.VSIFOpenL(filename, 'wb+')
    gdal.VSIFTruncateL(fp, 10 * 1024 * 1024 * 1024)
    gdal.VSIFSeekL(fp, 0, 2)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        pytest.fail(pos)
    gdal.VSIFSeekL(fp, 0, 0)
    gdal.VSIFSeekL(fp, pos, 0)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        pytest.fail(pos)

    gdal.VSIFCloseL(fp)

    statBuf = gdal.VSIStatL(filename, gdal.VSI_STAT_EXISTS_FLAG | gdal.VSI_STAT_NATURE_FLAG | gdal.VSI_STAT_SIZE_FLAG)
    gdal.Unlink(filename)

    assert statBuf.size == 10 * 1024 * 1024 * 1024

Exemple #5

def test_kro_5():

    # Determine if the filesystem supports sparse files (we don't want to create a real 10 GB
    # file !
    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        pytest.skip()

    ds = gdal.GetDriverByName('KRO').Create('tmp/kro_5.kro', 100000, 10000, 4)
    ds = None

    ds = gdal.Open('tmp/kro_5.kro')
    ds.ReadRaster(int(ds.RasterXSize / 2), int(ds.RasterYSize / 2), 100, 100)
    ds = None

    gdal.Unlink('tmp/kro_5.kro')

Exemple #6

Fichier : kro.py Projet : AsgerPetersen/gdal

def test_kro_5():

    # Determine if the filesystem supports sparse files (we don't want to create a real 10 GB
    # file !
    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        pytest.skip()

    ds = gdal.GetDriverByName('KRO').Create('tmp/kro_5.kro', 100000, 10000, 4)
    ds = None

    ds = gdal.Open('tmp/kro_5.kro')
    ds.ReadRaster(int(ds.RasterXSize / 2), int(ds.RasterYSize / 2), 100, 100)
    ds = None

    gdal.Unlink('tmp/kro_5.kro')

Exemple #7

def kro_5():

    # Determine if the filesystem supports sparse files (we don't want to create a real 10 GB
    # file !
    if (gdaltest.filesystem_supports_sparse_files('tmp') == False):
        return 'skip'

    ds = gdal.GetDriverByName('KRO').Create('tmp/kro_5.kro', 100000, 10000, 4)
    ds = None

    ds = gdal.Open('tmp/kro_5.kro')
    ds.ReadRaster(ds.RasterXSize / 2, ds.RasterYSize / 2, 100, 100)
    ds = None

    gdal.Unlink('tmp/kro_5.kro')

    return 'success'

Exemple #8

Fichier : kro.py Projet : nextgis-borsch/tests

def kro_5():

    # Determine if the filesystem supports sparse files (we don't want to create a real 10 GB
    # file !
    if (gdaltest.filesystem_supports_sparse_files('tmp') == False):
        return 'skip'

    ds = gdal.GetDriverByName('KRO').Create('tmp/kro_5.kro', 100000, 10000, 4)
    ds = None

    ds = gdal.Open('tmp/kro_5.kro')
    ds.ReadRaster(int(ds.RasterXSize / 2), int(ds.RasterYSize / 2), 100, 100)
    ds = None

    gdal.Unlink('tmp/kro_5.kro')

    return 'success'

Exemple #9

Fichier : tiff_read.py Projet : r3n4ud/gdal

def tiff_read_huge4GB():

    if (gdaltest.filesystem_supports_sparse_files('tmp') == False):
        ds = gdal.Open('data/huge4GB.tif')
        if ds is None:
            return 'fail'
    else:
        shutil.copy('data/huge4GB.tif', 'tmp/huge4GB.tif')
        f = open('tmp/huge4GB.tif', 'rb+')
        f.seek(65535 * 65535 + 401)
        f.write(' ')
        f.close()
        ds = gdal.Open('tmp/huge4GB.tif')
        if ds is None:
            os.remove('tmp/huge4GB.tif')
            return 'fail'
        ds = None
        os.remove('tmp/huge4GB.tif')

    return 'success'

Exemple #10

Fichier : tiff_read.py Projet : samalone/gdal-ios

def tiff_read_huge4GB():

    if (gdaltest.filesystem_supports_sparse_files('tmp') == False):
        ds = gdal.Open('data/huge4GB.tif')
        if ds is None:
            return 'fail'
    else:
        shutil.copy('data/huge4GB.tif', 'tmp/huge4GB.tif')
        f = open('tmp/huge4GB.tif', 'rb+')
        f.seek(65535 * 65535 + 401)
        f.write(' ')
        f.close()
        ds = gdal.Open('tmp/huge4GB.tif')
        if ds is None:
            os.remove('tmp/huge4GB.tif')
            return 'fail'
        ds = None
        os.remove('tmp/huge4GB.tif')

    return 'success'

Exemple #11

Fichier : vsifile.py Projet : tzickel/gdal

def vsifile_3():

    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        return 'skip'

    filename = 'tmp/vsifile_3'

    fp = gdal.VSIFOpenL(filename, 'wb+')
    gdal.VSIFTruncateL(fp, 10 * 1024 * 1024 * 1024)
    gdal.VSIFSeekL(fp, 0, 2)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdaltest.post_reason('failure')
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        print(pos)
        return 'fail'
    gdal.VSIFSeekL(fp, 0, 0)
    gdal.VSIFSeekL(fp, pos, 0)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdaltest.post_reason('failure')
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        print(pos)
        return 'fail'

    gdal.VSIFCloseL(fp)

    statBuf = gdal.VSIStatL(
        filename, gdal.VSI_STAT_EXISTS_FLAG | gdal.VSI_STAT_NATURE_FLAG
        | gdal.VSI_STAT_SIZE_FLAG)
    gdal.Unlink(filename)

    if statBuf.size != 10 * 1024 * 1024 * 1024:
        gdaltest.post_reason('failure')
        print(statBuf.size)
        return 'fail'

    return 'success'

Exemple #12

Fichier : vsifile.py Projet : renxiaosa00/gdal

def vsifile_6():

    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        return 'skip'

    offset = 4 * 1024 * 1024 * 1024

    ref_data = 'abcd'.encode('ascii')
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'wb')
    gdal.VSIFSeekL(fp, offset, 0)
    gdal.VSIFWriteL(ref_data, 1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    # Sanity check without VSI_CACHE
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'rb')
    gdal.VSIFSeekL(fp, offset, 0)
    got_data = gdal.VSIFReadL(1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    if ref_data != got_data:
        print(got_data)
        return 'fail'

    # Real test now
    gdal.SetConfigOption('VSI_CACHE', 'YES')
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'rb')
    gdal.SetConfigOption('VSI_CACHE', None)
    gdal.VSIFSeekL(fp, offset, 0)
    got_data = gdal.VSIFReadL(1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    if ref_data != got_data:
        print(got_data)
        return 'fail'

    gdal.Unlink('tmp/vsifile_6.bin')

    return 'success'

Exemple #13

Fichier : vsifile.py Projet : Joe-xXx/gdal

def vsifile_3():

    if gdaltest.filesystem_supports_sparse_files("tmp") == False:
        return "skip"

    filename = "tmp/vsifile_3"

    fp = gdal.VSIFOpenL(filename, "wb+")
    gdal.VSIFTruncateL(fp, 10 * 1024 * 1024 * 1024)
    gdal.VSIFSeekL(fp, 0, 2)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdaltest.post_reason("failure")
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        print(pos)
        return "fail"
    gdal.VSIFSeekL(fp, 0, 0)
    gdal.VSIFSeekL(fp, pos, 0)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdaltest.post_reason("failure")
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        print(pos)
        return "fail"

    gdal.VSIFCloseL(fp)

    statBuf = gdal.VSIStatL(filename, gdal.VSI_STAT_EXISTS_FLAG | gdal.VSI_STAT_NATURE_FLAG | gdal.VSI_STAT_SIZE_FLAG)
    gdal.Unlink(filename)

    if statBuf.size != 10 * 1024 * 1024 * 1024:
        gdaltest.post_reason("failure")
        print(statBuf.size)
        return "fail"

    return "success"

Exemple #14

Fichier : vsifile.py Projet : hdfeos/gdal

def vsifile_6():

    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        return 'skip'

    offset = 4 * 1024 * 1024 * 1024

    ref_data = 'abcd'.encode('ascii')
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'wb')
    gdal.VSIFSeekL(fp, offset, 0)
    gdal.VSIFWriteL(ref_data, 1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    # Sanity check without VSI_CACHE
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'rb')
    gdal.VSIFSeekL(fp, offset, 0)
    got_data = gdal.VSIFReadL(1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    if ref_data != got_data:
        print(got_data)
        return 'fail'

    # Real test now
    gdal.SetConfigOption('VSI_CACHE', 'YES')
    fp = gdal.VSIFOpenL('tmp/vsifile_6.bin', 'rb')
    gdal.SetConfigOption('VSI_CACHE', None)
    gdal.VSIFSeekL(fp, offset, 0)
    got_data = gdal.VSIFReadL(1, len(ref_data), fp)
    gdal.VSIFCloseL(fp)

    if ref_data != got_data:
        print(got_data)
        return 'fail'

    gdal.Unlink('tmp/vsifile_6.bin')

    return 'success'

Exemple #15

Fichier : vsifile.py Projet : hdfeos/gdal

def vsifile_3():

    if not gdaltest.filesystem_supports_sparse_files('tmp'):
        return 'skip'

    filename = 'tmp/vsifile_3'

    fp = gdal.VSIFOpenL(filename, 'wb+')
    gdal.VSIFTruncateL(fp, 10 * 1024 * 1024 * 1024)
    gdal.VSIFSeekL(fp, 0, 2)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdaltest.post_reason('failure')
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        print(pos)
        return 'fail'
    gdal.VSIFSeekL(fp, 0, 0)
    gdal.VSIFSeekL(fp, pos, 0)
    pos = gdal.VSIFTellL(fp)
    if pos != 10 * 1024 * 1024 * 1024:
        gdaltest.post_reason('failure')
        gdal.VSIFCloseL(fp)
        gdal.Unlink(filename)
        print(pos)
        return 'fail'

    gdal.VSIFCloseL(fp)

    statBuf = gdal.VSIStatL(filename, gdal.VSI_STAT_EXISTS_FLAG | gdal.VSI_STAT_NATURE_FLAG | gdal.VSI_STAT_SIZE_FLAG)
    gdal.Unlink(filename)

    if statBuf.size != 10 * 1024 * 1024 * 1024:
        gdaltest.post_reason('failure')
        print(statBuf.size)
        return 'fail'

    return 'success'