def vsifile_generic(filename):
fp = gdal.VSIFOpenL(filename, 'wb+')
gdal.VSIFWriteL('0123456789', 1, 10, fp)
gdal.VSIFTruncateL(fp, 5)
if gdal.VSIFTellL(fp) != 10:
gdaltest.post_reason('failure')
return 'fail'
gdal.VSIFSeekL(fp, 0, 2)
if gdal.VSIFTellL(fp) != 5:
gdaltest.post_reason('failure')
return 'fail'
gdal.VSIFWriteL('XX', 1, 2, fp)
gdal.VSIFCloseL(fp)
statBuf = gdal.VSIStatL(
filename, gdal.VSI_STAT_EXISTS_FLAG | gdal.VSI_STAT_NATURE_FLAG
| gdal.VSI_STAT_SIZE_FLAG)
if statBuf.size != 7:
gdaltest.post_reason('failure')
print(statBuf.size)
return 'fail'
fp = gdal.VSIFOpenL(filename, 'rb')
buf = gdal.VSIFReadL(1, 7, fp)
gdal.VSIFCloseL(fp)
if buf.decode('ascii') != '01234XX':
gdaltest.post_reason('failure')
return 'fail'
gdal.Unlink(filename)
statBuf = gdal.VSIStatL(filename, gdal.VSI_STAT_EXISTS_FLAG)
if statBuf is not None:
gdaltest.post_reason('failure')
return 'fail'
return 'success'
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'