def __init__(self, io, early_config, io_config, name):
try:
config_lp = None
library = pressio.instance()
self._io = pressio.get_io(library, io.encode())
if not self._io:
raise PressioException.from_library(library)
if name is not None:
pressio.compressor_set_name(self._io, name.encode())
early_config_lp = _python_to_pressio(early_config)
pressio.io_set_options(self._io, early_config_lp)
pressio.options_free(early_config_lp)
config_lp = pressio.io_get_options(self._io)
config_lp = _python_to_pressio(io_config, config_lp)
pressio.io_set_options(self._io, config_lp)
finally:
pressio.release(library)
pressio.options_free(config_lp)
sz_options = pressio.compressor_get_options(compressor)
metrics_ids = pressio.vector_string([b'time', b'size'])
metrics = pressio.new_metrics(library, metrics_ids)
pressio.options_set_string(sz_options, b"sz:error_bound_mode_str", b'abs')
pressio.options_set_double(sz_options, b"sz:abs_err_bound", 0.5)
pressio.compressor_check_options(compressor, sz_options)
pressio.compressor_set_options(compressor, sz_options)
pressio.compressor_set_metrics(compressor, metrics)
data = np.random.rand(300, 300, 300)
with tempfile.NamedTemporaryFile() as tmp:
data.tofile(tmp)
posix_io = pressio.get_io(library, b'posix')
#configure read
posix_options = pressio.io_get_options(posix_io)
pressio.options_set_string(posix_options, b'io:path',
bytes(tmp.name, 'ascii'))
pressio.io_set_options(posix_io, posix_options)
#configure template buffer
dims = pressio.vector_uint64_t([300, 300, 300])
input_template = pressio.data_new_empty(pressio.double_dtype, dims)
#preform read
input_data = pressio.io_read(posix_io, input_template)
compressed_data = pressio.data_new_empty(pressio.byte_dtype,