diff --git a/Lib/compression/zstd/__init__.py b/Lib/compression/zstd/__init__.py index 4f734eb07b00e3..a1054adb64170b 100644 --- a/Lib/compression/zstd/__init__.py +++ b/Lib/compression/zstd/__init__.py @@ -28,10 +28,16 @@ import _zstd import enum -from _zstd import * +from _zstd import (ZstdCompressor, ZstdDecompressor, ZstdDict, ZstdError, + get_frame_size, zstd_version) from compression.zstd._zstdfile import ZstdFile, open, _nbytes -COMPRESSION_LEVEL_DEFAULT = _zstd._compressionLevel_values[0] +# zstd_version_number is (MAJOR * 100 * 100 + MINOR * 100 + RELEASE) +zstd_version_info = (*divmod(_zstd.zstd_version_number // 100, 100), + _zstd.zstd_version_number % 100) +"""Version number of the runtime zstd library as a tuple of integers.""" + +COMPRESSION_LEVEL_DEFAULT = _zstd.ZSTD_CLEVEL_DEFAULT """The default compression level for Zstandard, currently '3'.""" @@ -167,28 +173,28 @@ def decompress(data, zstd_dict=None, options=None): class CompressionParameter(enum.IntEnum): """Compression parameters.""" - compression_level = _zstd._ZSTD_c_compressionLevel - window_log = _zstd._ZSTD_c_windowLog - hash_log = _zstd._ZSTD_c_hashLog - chain_log = _zstd._ZSTD_c_chainLog - search_log = _zstd._ZSTD_c_searchLog - min_match = _zstd._ZSTD_c_minMatch - target_length = _zstd._ZSTD_c_targetLength - strategy = _zstd._ZSTD_c_strategy - - enable_long_distance_matching = _zstd._ZSTD_c_enableLongDistanceMatching - ldm_hash_log = _zstd._ZSTD_c_ldmHashLog - ldm_min_match = _zstd._ZSTD_c_ldmMinMatch - ldm_bucket_size_log = _zstd._ZSTD_c_ldmBucketSizeLog - ldm_hash_rate_log = _zstd._ZSTD_c_ldmHashRateLog - - content_size_flag = _zstd._ZSTD_c_contentSizeFlag - checksum_flag = _zstd._ZSTD_c_checksumFlag - dict_id_flag = _zstd._ZSTD_c_dictIDFlag - - nb_workers = _zstd._ZSTD_c_nbWorkers - job_size = _zstd._ZSTD_c_jobSize - overlap_log = _zstd._ZSTD_c_overlapLog + compression_level = _zstd.ZSTD_c_compressionLevel + window_log = _zstd.ZSTD_c_windowLog + hash_log = _zstd.ZSTD_c_hashLog + chain_log = _zstd.ZSTD_c_chainLog + search_log = _zstd.ZSTD_c_searchLog + min_match = _zstd.ZSTD_c_minMatch + target_length = _zstd.ZSTD_c_targetLength + strategy = _zstd.ZSTD_c_strategy + + enable_long_distance_matching = _zstd.ZSTD_c_enableLongDistanceMatching + ldm_hash_log = _zstd.ZSTD_c_ldmHashLog + ldm_min_match = _zstd.ZSTD_c_ldmMinMatch + ldm_bucket_size_log = _zstd.ZSTD_c_ldmBucketSizeLog + ldm_hash_rate_log = _zstd.ZSTD_c_ldmHashRateLog + + content_size_flag = _zstd.ZSTD_c_contentSizeFlag + checksum_flag = _zstd.ZSTD_c_checksumFlag + dict_id_flag = _zstd.ZSTD_c_dictIDFlag + + nb_workers = _zstd.ZSTD_c_nbWorkers + job_size = _zstd.ZSTD_c_jobSize + overlap_log = _zstd.ZSTD_c_overlapLog def bounds(self): """Return the (lower, upper) int bounds of a compression parameter. @@ -201,7 +207,7 @@ def bounds(self): class DecompressionParameter(enum.IntEnum): """Decompression parameters.""" - window_log_max = _zstd._ZSTD_d_windowLogMax + window_log_max = _zstd.ZSTD_d_windowLogMax def bounds(self): """Return the (lower, upper) int bounds of a decompression parameter. @@ -219,15 +225,15 @@ class Strategy(enum.IntEnum): the numeric value might change. """ - fast = _zstd._ZSTD_fast - dfast = _zstd._ZSTD_dfast - greedy = _zstd._ZSTD_greedy - lazy = _zstd._ZSTD_lazy - lazy2 = _zstd._ZSTD_lazy2 - btlazy2 = _zstd._ZSTD_btlazy2 - btopt = _zstd._ZSTD_btopt - btultra = _zstd._ZSTD_btultra - btultra2 = _zstd._ZSTD_btultra2 + fast = _zstd.ZSTD_fast + dfast = _zstd.ZSTD_dfast + greedy = _zstd.ZSTD_greedy + lazy = _zstd.ZSTD_lazy + lazy2 = _zstd.ZSTD_lazy2 + btlazy2 = _zstd.ZSTD_btlazy2 + btopt = _zstd.ZSTD_btopt + btultra = _zstd.ZSTD_btultra + btultra2 = _zstd.ZSTD_btultra2 # Check validity of the CompressionParameter & DecompressionParameter types diff --git a/Lib/compression/zstd/_zstdfile.py b/Lib/compression/zstd/_zstdfile.py index fbc9e02a733626..1ff249965692ae 100644 --- a/Lib/compression/zstd/_zstdfile.py +++ b/Lib/compression/zstd/_zstdfile.py @@ -1,13 +1,11 @@ import io from os import PathLike -from _zstd import (ZstdCompressor, ZstdDecompressor, _ZSTD_DStreamSizes, - ZstdError) +from _zstd import (ZstdCompressor, ZstdDecompressor, ZstdError, + ZSTD_DStreamOutSize) from compression._common import _streams __all__ = ("ZstdFile", "open") -_ZSTD_DStreamOutSize = _ZSTD_DStreamSizes[1] - _MODE_CLOSED = 0 _MODE_READ = 1 _MODE_WRITE = 2 @@ -188,7 +186,7 @@ def read1(self, size=-1): # Note this should *not* be io.DEFAULT_BUFFER_SIZE. # ZSTD_DStreamOutSize is the minimum amount to read guaranteeing # a full block is read. - size = _ZSTD_DStreamOutSize + size = ZSTD_DStreamOutSize return self._buffer.read1(size) def readinto(self, b): diff --git a/Lib/test/test_zstd.py b/Lib/test/test_zstd.py index f4a25376e5234a..cd65c1a66370c8 100644 --- a/Lib/test/test_zstd.py +++ b/Lib/test/test_zstd.py @@ -281,7 +281,7 @@ def test_compress_parameters(self): with self.assertRaisesRegex(ZstdError, (r'Error when setting zstd compression parameter "window_log", ' r'it should \d+ <= value <= \d+, provided value is 100\. ' - r'\(zstd v\d\.\d\.\d, (?:32|64)-bit build\)')): + r'\((?:32|64)-bit build\)')): compress(b'', options=option) def test_unknown_compression_parameter(self): @@ -413,7 +413,7 @@ def test_decompress_parameters(self): with self.assertRaisesRegex(ZstdError, (r'Error when setting zstd decompression parameter "window_log_max", ' r'it should \d+ <= value <= \d+, provided value is 100\. ' - r'\(zstd v\d\.\d\.\d, (?:32|64)-bit build\)')): + r'\((?:32|64)-bit build\)')): decompress(b'', options=options) def test_unknown_decompression_parameter(self): diff --git a/Modules/_zstd/_zstdmodule.c b/Modules/_zstd/_zstdmodule.c index 4d046859a1540e..be900a4c42b54d 100644 --- a/Modules/_zstd/_zstdmodule.c +++ b/Modules/_zstd/_zstdmodule.c @@ -33,9 +33,6 @@ set_zstd_error(const _zstd_state* const state, case ERR_COMPRESS: msg = "Unable to compress zstd data: %s"; break; - case ERR_SET_PLEDGED_INPUT_SIZE: - msg = "Unable to set pledged uncompressed content size: %s"; - break; case ERR_LOAD_D_DICT: msg = "Unable to load zstd dictionary or prefix for decompression: %s"; @@ -151,8 +148,8 @@ set_parameter_error(const _zstd_state* const state, int is_compress, } if (ZSTD_isError(bounds.error)) { PyErr_Format(state->ZstdError, - "Zstd %s parameter \"%s\" is invalid. (zstd v%s)", - type, name, ZSTD_versionString()); + "Zstd %s parameter \"%s\" is invalid.", + type, name); return; } @@ -160,10 +157,10 @@ set_parameter_error(const _zstd_state* const state, int is_compress, PyErr_Format(state->ZstdError, "Error when setting zstd %s parameter \"%s\", it " "should %d <= value <= %d, provided value is %d. " - "(zstd v%s, %d-bit build)", + "(%d-bit build)", type, name, bounds.lowerBound, bounds.upperBound, value_v, - ZSTD_versionString(), 8*(int)sizeof(Py_ssize_t)); + 8*(int)sizeof(Py_ssize_t)); } static inline _zstd_state* @@ -558,150 +555,81 @@ static PyMethodDef _zstd_methods[] = { }; -#define ADD_INT_PREFIX_MACRO(module, macro) \ - do { \ - if (PyModule_AddIntConstant(module, "_" #macro, macro) < 0) { \ - return -1; \ - } \ - } while(0) - -static int -add_parameters(PyObject *module) -{ - /* If add new parameters, please also add to cp_list/dp_list above. */ - - /* Compression parameters */ - ADD_INT_PREFIX_MACRO(module, ZSTD_c_compressionLevel); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_windowLog); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_hashLog); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_chainLog); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_searchLog); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_minMatch); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_targetLength); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_strategy); - - ADD_INT_PREFIX_MACRO(module, ZSTD_c_enableLongDistanceMatching); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_ldmHashLog); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_ldmMinMatch); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_ldmBucketSizeLog); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_ldmHashRateLog); - - ADD_INT_PREFIX_MACRO(module, ZSTD_c_contentSizeFlag); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_checksumFlag); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_dictIDFlag); - - ADD_INT_PREFIX_MACRO(module, ZSTD_c_nbWorkers); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_jobSize); - ADD_INT_PREFIX_MACRO(module, ZSTD_c_overlapLog); - - /* Decompression parameters */ - ADD_INT_PREFIX_MACRO(module, ZSTD_d_windowLogMax); - - /* ZSTD_strategy enum */ - ADD_INT_PREFIX_MACRO(module, ZSTD_fast); - ADD_INT_PREFIX_MACRO(module, ZSTD_dfast); - ADD_INT_PREFIX_MACRO(module, ZSTD_greedy); - ADD_INT_PREFIX_MACRO(module, ZSTD_lazy); - ADD_INT_PREFIX_MACRO(module, ZSTD_lazy2); - ADD_INT_PREFIX_MACRO(module, ZSTD_btlazy2); - ADD_INT_PREFIX_MACRO(module, ZSTD_btopt); - ADD_INT_PREFIX_MACRO(module, ZSTD_btultra); - ADD_INT_PREFIX_MACRO(module, ZSTD_btultra2); - - return 0; -} - -static inline PyObject * -get_zstd_version_info(void) -{ - uint32_t ver = ZSTD_versionNumber(); - uint32_t major, minor, release; - - major = ver / 10000; - minor = (ver / 100) % 100; - release = ver % 100; - - return Py_BuildValue("III", major, minor, release); -} - static inline int -add_vars_to_module(PyObject *module) +add_vars_to_module(PyObject *m) { - PyObject *obj; +#define ADD_INT_MACRO(MACRO) \ + if (PyModule_AddIntConstant((m), #MACRO, (MACRO)) < 0) { \ + return -1; \ + } - /* zstd_version, a str. */ - if (PyModule_AddStringConstant(module, "zstd_version", - ZSTD_versionString()) < 0) { + /* zstd_version_number, int */ + if (PyModule_AddIntConstant(m, "zstd_version_number", + ZSTD_versionNumber()) < 0) { return -1; } - /* zstd_version_info, a tuple. */ - obj = get_zstd_version_info(); - if (PyModule_AddObjectRef(module, "zstd_version_info", obj) < 0) { - Py_XDECREF(obj); + /* zstd_version, str */ + if (PyModule_AddStringConstant(m, "zstd_version", + ZSTD_versionString()) < 0) { return -1; } - Py_DECREF(obj); - /* Add zstd parameters */ - if (add_parameters(module) < 0) { + /* ZSTD_CLEVEL_DEFAULT, int */ +#if ZSTD_VERSION_NUMBER >= 10500 + if (PyModule_AddIntConstant(m, "ZSTD_CLEVEL_DEFAULT", + ZSTD_defaultCLevel()) < 0) { return -1; } - - /* _compressionLevel_values: (default, min, max) - ZSTD_defaultCLevel() was added in zstd v1.5.0 */ - obj = Py_BuildValue("iii", -#if ZSTD_VERSION_NUMBER < 10500 - ZSTD_CLEVEL_DEFAULT, #else - ZSTD_defaultCLevel(), + ADD_INT_MACRO(ZSTD_CLEVEL_DEFAULT); #endif - ZSTD_minCLevel(), - ZSTD_maxCLevel()); - if (PyModule_AddObjectRef(module, - "_compressionLevel_values", - obj) < 0) { - Py_XDECREF(obj); - return -1; - } - Py_DECREF(obj); - /* _ZSTD_CStreamSizes */ - obj = Py_BuildValue("II", - (uint32_t)ZSTD_CStreamInSize(), - (uint32_t)ZSTD_CStreamOutSize()); - if (PyModule_AddObjectRef(module, "_ZSTD_CStreamSizes", obj) < 0) { - Py_XDECREF(obj); + /* ZSTD_DStreamOutSize, int */ + if (PyModule_Add(m, "ZSTD_DStreamOutSize", + PyLong_FromSize_t(ZSTD_DStreamOutSize())) < 0) { return -1; } - Py_DECREF(obj); - /* _ZSTD_DStreamSizes */ - obj = Py_BuildValue("II", - (uint32_t)ZSTD_DStreamInSize(), - (uint32_t)ZSTD_DStreamOutSize()); - if (PyModule_AddObjectRef(module, "_ZSTD_DStreamSizes", obj) < 0) { - Py_XDECREF(obj); - return -1; - } - Py_DECREF(obj); + /* Add zstd compression parameters. All should also be in cp_list. */ + ADD_INT_MACRO(ZSTD_c_compressionLevel); + ADD_INT_MACRO(ZSTD_c_windowLog); + ADD_INT_MACRO(ZSTD_c_hashLog); + ADD_INT_MACRO(ZSTD_c_chainLog); + ADD_INT_MACRO(ZSTD_c_searchLog); + ADD_INT_MACRO(ZSTD_c_minMatch); + ADD_INT_MACRO(ZSTD_c_targetLength); + ADD_INT_MACRO(ZSTD_c_strategy); - /* _ZSTD_CONFIG */ - obj = Py_BuildValue("isOOO", 8*(int)sizeof(Py_ssize_t), "c", - Py_False, - Py_True, -/* User mremap output buffer */ -#if defined(HAVE_MREMAP) - Py_True -#else - Py_False -#endif - ); - if (PyModule_AddObjectRef(module, "_ZSTD_CONFIG", obj) < 0) { - Py_XDECREF(obj); - return -1; - } - Py_DECREF(obj); + ADD_INT_MACRO(ZSTD_c_enableLongDistanceMatching); + ADD_INT_MACRO(ZSTD_c_ldmHashLog); + ADD_INT_MACRO(ZSTD_c_ldmMinMatch); + ADD_INT_MACRO(ZSTD_c_ldmBucketSizeLog); + ADD_INT_MACRO(ZSTD_c_ldmHashRateLog); + + ADD_INT_MACRO(ZSTD_c_contentSizeFlag); + ADD_INT_MACRO(ZSTD_c_checksumFlag); + ADD_INT_MACRO(ZSTD_c_dictIDFlag); + + ADD_INT_MACRO(ZSTD_c_nbWorkers); + ADD_INT_MACRO(ZSTD_c_jobSize); + ADD_INT_MACRO(ZSTD_c_overlapLog); + + /* Add zstd decompression parameters. All should also be in dp_list. */ + ADD_INT_MACRO(ZSTD_d_windowLogMax); + + /* ZSTD_strategy enum */ + ADD_INT_MACRO(ZSTD_fast); + ADD_INT_MACRO(ZSTD_dfast); + ADD_INT_MACRO(ZSTD_greedy); + ADD_INT_MACRO(ZSTD_lazy); + ADD_INT_MACRO(ZSTD_lazy2); + ADD_INT_MACRO(ZSTD_btlazy2); + ADD_INT_MACRO(ZSTD_btopt); + ADD_INT_MACRO(ZSTD_btultra); + ADD_INT_MACRO(ZSTD_btultra2); + +#undef ADD_INT_MACRO return 0; } diff --git a/Modules/_zstd/_zstdmodule.h b/Modules/_zstd/_zstdmodule.h index 1e9e4c75056831..0833591c50fcd9 100644 --- a/Modules/_zstd/_zstdmodule.h +++ b/Modules/_zstd/_zstdmodule.h @@ -137,7 +137,6 @@ typedef enum { typedef enum { ERR_DECOMPRESS, ERR_COMPRESS, - ERR_SET_PLEDGED_INPUT_SIZE, ERR_LOAD_D_DICT, ERR_LOAD_C_DICT, @@ -147,7 +146,7 @@ typedef enum { ERR_SET_C_LEVEL, ERR_TRAIN_DICT, - ERR_FINALIZE_DICT + ERR_FINALIZE_DICT, } error_type; typedef enum { pFad - Phonifier reborn

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