char *msg;
assert(ZSTD_isError(zstd_ret));
- switch (type)
- {
- case ERR_DECOMPRESS:
- msg = "Unable to decompress Zstandard data: %s";
- break;
- case ERR_COMPRESS:
- msg = "Unable to compress Zstandard data: %s";
- break;
-
- case ERR_LOAD_D_DICT:
- msg = "Unable to load Zstandard dictionary or prefix for decompression: %s";
- break;
- case ERR_LOAD_C_DICT:
- msg = "Unable to load Zstandard dictionary or prefix for compression: %s";
- break;
-
- case ERR_GET_C_BOUNDS:
- msg = "Unable to get zstd compression parameter bounds: %s";
- break;
- case ERR_GET_D_BOUNDS:
- msg = "Unable to get zstd decompression parameter bounds: %s";
- break;
- case ERR_SET_C_LEVEL:
- msg = "Unable to set zstd compression level: %s";
- break;
-
- case ERR_TRAIN_DICT:
- msg = "Unable to train the Zstandard dictionary: %s";
- break;
- case ERR_FINALIZE_DICT:
- msg = "Unable to finalize the Zstandard dictionary: %s";
- break;
-
- default:
- Py_UNREACHABLE();
+ switch (type) {
+ case ERR_DECOMPRESS:
+ msg = "Unable to decompress Zstandard data: %s";
+ break;
+ case ERR_COMPRESS:
+ msg = "Unable to compress Zstandard data: %s";
+ break;
+
+ case ERR_LOAD_D_DICT:
+ msg = "Unable to load Zstandard dictionary or prefix for "
+ "decompression: %s";
+ break;
+ case ERR_LOAD_C_DICT:
+ msg = "Unable to load Zstandard dictionary or prefix for "
+ "compression: %s";
+ break;
+
+ case ERR_GET_C_BOUNDS:
+ msg = "Unable to get zstd compression parameter bounds: %s";
+ break;
+ case ERR_GET_D_BOUNDS:
+ msg = "Unable to get zstd decompression parameter bounds: %s";
+ break;
+ case ERR_SET_C_LEVEL:
+ msg = "Unable to set zstd compression level: %s";
+ break;
+
+ case ERR_TRAIN_DICT:
+ msg = "Unable to train the Zstandard dictionary: %s";
+ break;
+ case ERR_FINALIZE_DICT:
+ msg = "Unable to finalize the Zstandard dictionary: %s";
+ break;
+
+ default:
+ Py_UNREACHABLE();
}
PyErr_Format(state->ZstdError, msg, ZSTD_getErrorName(zstd_ret));
}
chunks_number = Py_SIZE(samples_sizes);
if ((size_t) chunks_number > UINT32_MAX) {
PyErr_Format(PyExc_ValueError,
- "The number of samples should be <= %u.", UINT32_MAX);
+ "The number of samples should be <= %u.", UINT32_MAX);
return -1;
}
(*chunk_sizes)[i] = PyLong_AsSize_t(size);
if ((*chunk_sizes)[i] == (size_t)-1 && PyErr_Occurred()) {
PyErr_Format(PyExc_ValueError,
- "Items in samples_sizes should be an int "
- "object, with a value between 0 and %u.", SIZE_MAX);
+ "Items in samples_sizes should be an int "
+ "object, with a value between 0 and %u.", SIZE_MAX);
return -1;
}
sizes_sum += (*chunk_sizes)[i];
if (sizes_sum != Py_SIZE(samples_bytes)) {
PyErr_SetString(PyExc_ValueError,
- "The samples size tuple doesn't match the concatenation's size.");
+ "The samples size tuple doesn't match the "
+ "concatenation's size.");
return -1;
}
return chunks_number;
/* Check arguments */
if (dict_size <= 0) {
- PyErr_SetString(PyExc_ValueError, "dict_size argument should be positive number.");
+ PyErr_SetString(PyExc_ValueError,
+ "dict_size argument should be positive number.");
return NULL;
}
/* Check that the samples are valid and get their sizes */
chunks_number = calculate_samples_stats(samples_bytes, samples_sizes,
&chunk_sizes);
- if (chunks_number < 0)
- {
+ if (chunks_number < 0) {
goto error;
}
/* Check Zstandard dict error */
if (ZDICT_isError(zstd_ret)) {
- _zstd_state* const mod_state = get_zstd_state(module);
+ _zstd_state* mod_state = get_zstd_state(module);
set_zstd_error(mod_state, ERR_TRAIN_DICT, zstd_ret);
goto error;
}
/* Check arguments */
if (dict_size <= 0) {
- PyErr_SetString(PyExc_ValueError, "dict_size argument should be positive number.");
+ PyErr_SetString(PyExc_ValueError,
+ "dict_size argument should be positive number.");
return NULL;
}
/* Check that the samples are valid and get their sizes */
chunks_number = calculate_samples_stats(samples_bytes, samples_sizes,
&chunk_sizes);
- if (chunks_number < 0)
- {
+ if (chunks_number < 0) {
goto error;
}
Py_BEGIN_ALLOW_THREADS
zstd_ret = ZDICT_finalizeDictionary(
PyBytes_AS_STRING(dst_dict_bytes), dict_size,
- PyBytes_AS_STRING(custom_dict_bytes), Py_SIZE(custom_dict_bytes),
+ PyBytes_AS_STRING(custom_dict_bytes),
+ Py_SIZE(custom_dict_bytes),
PyBytes_AS_STRING(samples_bytes), chunk_sizes,
(uint32_t)chunks_number, params);
Py_END_ALLOW_THREADS
/* Check Zstandard dict error */
if (ZDICT_isError(zstd_ret)) {
- _zstd_state* const mod_state = get_zstd_state(module);
+ _zstd_state* mod_state = get_zstd_state(module);
set_zstd_error(mod_state, ERR_FINALIZE_DICT, zstd_ret);
goto error;
}
if (is_compress) {
bound = ZSTD_cParam_getBounds(parameter);
if (ZSTD_isError(bound.error)) {
- _zstd_state* const mod_state = get_zstd_state(module);
+ _zstd_state* mod_state = get_zstd_state(module);
set_zstd_error(mod_state, ERR_GET_C_BOUNDS, bound.error);
return NULL;
}
else {
bound = ZSTD_dParam_getBounds(parameter);
if (ZSTD_isError(bound.error)) {
- _zstd_state* const mod_state = get_zstd_state(module);
+ _zstd_state* mod_state = get_zstd_state(module);
set_zstd_error(mod_state, ERR_GET_D_BOUNDS, bound.error);
return NULL;
}
{
size_t frame_size;
- frame_size = ZSTD_findFrameCompressedSize(frame_buffer->buf, frame_buffer->len);
+ frame_size = ZSTD_findFrameCompressedSize(frame_buffer->buf,
+ frame_buffer->len);
if (ZSTD_isError(frame_size)) {
- _zstd_state* const mod_state = get_zstd_state(module);
+ _zstd_state* mod_state = get_zstd_state(module);
PyErr_Format(mod_state->ZstdError,
"Error when finding the compressed size of a Zstandard frame. "
"Ensure the frame_buffer argument starts from the "
/* #define ZSTD_CONTENTSIZE_UNKNOWN (0ULL - 1)
#define ZSTD_CONTENTSIZE_ERROR (0ULL - 2) */
if (decompressed_size == ZSTD_CONTENTSIZE_ERROR) {
- _zstd_state* const mod_state = get_zstd_state(module);
+ _zstd_state* mod_state = get_zstd_state(module);
PyErr_SetString(mod_state->ZstdError,
"Error when getting information from the header of "
"a Zstandard frame. Ensure the frame_buffer argument "
PyObject *d_parameter_type)
/*[clinic end generated code: output=f3313b1294f19502 input=75d7a953580fae5f]*/
{
- _zstd_state* const mod_state = get_zstd_state(module);
+ _zstd_state* mod_state = get_zstd_state(module);
if (!PyType_Check(c_parameter_type) || !PyType_Check(d_parameter_type)) {
PyErr_SetString(PyExc_ValueError,
Py_DECREF(v); \
} while (0)
- _zstd_state* const mod_state = get_zstd_state(m);
+ _zstd_state* mod_state = get_zstd_state(m);
/* Reusable objects & variables */
mod_state->CParameter_type = NULL;
static int
_zstd_traverse(PyObject *module, visitproc visit, void *arg)
{
- _zstd_state* const mod_state = get_zstd_state(module);
+ _zstd_state* mod_state = get_zstd_state(module);
Py_VISIT(mod_state->ZstdDict_type);
Py_VISIT(mod_state->ZstdCompressor_type);
static int
_zstd_clear(PyObject *module)
{
- _zstd_state* const mod_state = get_zstd_state(module);
+ _zstd_state* mod_state = get_zstd_state(module);
Py_CLEAR(mod_state->ZstdDict_type);
Py_CLEAR(mod_state->ZstdCompressor_type);
/* Ensure .list was set to NULL */
assert(buffer->list == NULL);
- Py_ssize_t res = _BlocksOutputBuffer_InitAndGrow(buffer, max_length, &ob->dst);
+ Py_ssize_t res = _BlocksOutputBuffer_InitAndGrow(buffer, max_length,
+ &ob->dst);
if (res < 0) {
return -1;
}
Return -1 on failure */
static inline int
_OutputBuffer_InitWithSize(_BlocksOutputBuffer *buffer, ZSTD_outBuffer *ob,
- Py_ssize_t max_length,
- Py_ssize_t init_size)
+ Py_ssize_t max_length, Py_ssize_t init_size)
{
Py_ssize_t block_size;
block_size = init_size;
}
- Py_ssize_t res = _BlocksOutputBuffer_InitWithSize(buffer, block_size, &ob->dst);
+ Py_ssize_t res = _BlocksOutputBuffer_InitWithSize(buffer, block_size,
+ &ob->dst);
if (res < 0) {
return -1;
}
PyDoc_STRVAR(_zstd_ZstdDict_as_digested_dict__doc__,
"Load as a digested dictionary to compressor.\n"
"\n"
-"Pass this attribute as zstd_dict argument: compress(dat, zstd_dict=zd.as_digested_dict)\n"
+"Pass this attribute as zstd_dict argument:\n"
+"compress(dat, zstd_dict=zd.as_digested_dict)\n"
+"\n"
"1. Some advanced compression parameters of compressor may be overridden\n"
" by parameters of digested dictionary.\n"
"2. ZstdDict has a digested dictionaries cache for each compression level.\n"
PyDoc_STRVAR(_zstd_ZstdDict_as_undigested_dict__doc__,
"Load as an undigested dictionary to compressor.\n"
"\n"
-"Pass this attribute as zstd_dict argument: compress(dat, zstd_dict=zd.as_undigested_dict)\n"
+"Pass this attribute as zstd_dict argument:\n"
+"compress(dat, zstd_dict=zd.as_undigested_dict)\n"
+"\n"
"1. The advanced compression parameters of compressor will not be overridden.\n"
"2. Loading an undigested dictionary is costly. If load an undigested dictionary\n"
" multiple times, consider reusing a compressor object.\n"
PyDoc_STRVAR(_zstd_ZstdDict_as_prefix__doc__,
"Load as a prefix to compressor/decompressor.\n"
"\n"
-"Pass this attribute as zstd_dict argument: compress(dat, zstd_dict=zd.as_prefix)\n"
+"Pass this attribute as zstd_dict argument:\n"
+"compress(dat, zstd_dict=zd.as_prefix)\n"
+"\n"
"1. Prefix is compatible with long distance matching, while dictionary is not.\n"
"2. It only works for the first frame, then the compressor/decompressor will\n"
" return to no prefix state.\n"
{
return _zstd_ZstdDict_as_prefix_get_impl((ZstdDict *)self);
}
-/*[clinic end generated code: output=8692eabee4e0d1fe input=a9049054013a1b77]*/
+/*[clinic end generated code: output=47b12b5848b53ed8 input=a9049054013a1b77]*/
const char *arg_name, const char* arg_type)
{
size_t zstd_ret;
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state == NULL) {
return -1;
}
int level = PyLong_AsInt(level_or_options);
if (level == -1 && PyErr_Occurred()) {
PyErr_Format(PyExc_ValueError,
- "Compression level should be an int value between %d and %d.",
- ZSTD_minCLevel(), ZSTD_maxCLevel());
+ "Compression level should be an int value between "
+ "%d and %d.", ZSTD_minCLevel(), ZSTD_maxCLevel());
return -1;
}
}
return 0;
}
- PyErr_Format(PyExc_TypeError, "Invalid type for %s. Expected %s", arg_name, arg_type);
+ PyErr_Format(PyExc_TypeError,
+ "Invalid type for %s. Expected %s", arg_name, arg_type);
return -1;
}
Py_END_ALLOW_THREADS
if (cdict == NULL) {
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state != NULL) {
PyErr_SetString(mod_state->ZstdError,
"Failed to create a ZSTD_CDict instance from "
static int
_zstd_load_c_dict(ZstdCompressor *self, PyObject *dict)
{
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state == NULL) {
return -1;
}
else if (ret > 0) {
/* type == -1 may indicate an error. */
type = PyLong_AsInt(PyTuple_GET_ITEM(dict, 1));
- if (type == DICT_TYPE_DIGESTED ||
- type == DICT_TYPE_UNDIGESTED ||
- type == DICT_TYPE_PREFIX)
+ if (type == DICT_TYPE_DIGESTED
+ || type == DICT_TYPE_UNDIGESTED
+ || type == DICT_TYPE_PREFIX)
{
assert(type >= 0);
zd = (ZstdDict*)PyTuple_GET_ITEM(dict, 0);
/* Compression context */
self->cctx = ZSTD_createCCtx();
if (self->cctx == NULL) {
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state != NULL) {
PyErr_SetString(mod_state->ZstdError,
"Unable to create ZSTD_CCtx instance.");
self->last_mode = ZSTD_e_end;
if (level != Py_None && options != Py_None) {
- PyErr_SetString(PyExc_RuntimeError, "Only one of level or options should be used.");
+ PyErr_SetString(PyExc_RuntimeError,
+ "Only one of level or options should be used.");
goto error;
}
}
if (_OutputBuffer_InitWithSize(&buffer, &out, -1,
- (Py_ssize_t) output_buffer_size) < 0) {
+ (Py_ssize_t) output_buffer_size) < 0) {
goto error;
}
/* Check error */
if (ZSTD_isError(zstd_ret)) {
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state != NULL) {
set_zstd_error(mod_state, ERR_COMPRESS, zstd_ret);
}
while (1) {
Py_BEGIN_ALLOW_THREADS
do {
- zstd_ret = ZSTD_compressStream2(self->cctx, &out, &in, ZSTD_e_continue);
- } while (out.pos != out.size && in.pos != in.size && !ZSTD_isError(zstd_ret));
+ zstd_ret = ZSTD_compressStream2(self->cctx, &out, &in,
+ ZSTD_e_continue);
+ } while (out.pos != out.size
+ && in.pos != in.size
+ && !ZSTD_isError(zstd_ret));
Py_END_ALLOW_THREADS
/* Check error */
if (ZSTD_isError(zstd_ret)) {
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state != NULL) {
set_zstd_error(mod_state, ERR_COMPRESS, zstd_ret);
}
PyDoc_STRVAR(ZstdCompressor_last_mode_doc,
"The last mode used to this compressor object, its value can be .CONTINUE,\n"
".FLUSH_BLOCK, .FLUSH_FRAME. Initialized to .FLUSH_FRAME.\n\n"
-"It can be used to get the current state of a compressor, such as, data flushed,\n"
-"a frame ended.");
+"It can be used to get the current state of a compressor, such as, data\n"
+"flushed, or a frame ended.");
static PyMemberDef ZstdCompressor_members[] = {
{"last_mode", Py_T_INT, offsetof(ZstdCompressor, last_mode),
- Py_READONLY, ZstdCompressor_last_mode_doc},
+ Py_READONLY, ZstdCompressor_last_mode_doc},
{NULL}
};
self->d_dict = ret;
if (self->d_dict == NULL) {
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state != NULL) {
PyErr_SetString(mod_state->ZstdError,
"Failed to create a ZSTD_DDict instance from "
size_t zstd_ret;
PyObject *key, *value;
Py_ssize_t pos;
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state == NULL) {
return -1;
}
static int
_zstd_load_d_dict(ZstdDecompressor *self, PyObject *dict)
{
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state == NULL) {
return -1;
}
else if (ret > 0) {
/* type == -1 may indicate an error. */
type = PyLong_AsInt(PyTuple_GET_ITEM(dict, 1));
- if (type == DICT_TYPE_DIGESTED ||
- type == DICT_TYPE_UNDIGESTED ||
- type == DICT_TYPE_PREFIX)
+ if (type == DICT_TYPE_DIGESTED
+ || type == DICT_TYPE_UNDIGESTED
+ || type == DICT_TYPE_PREFIX)
{
assert(type >= 0);
zd = (ZstdDict*)PyTuple_GET_ITEM(dict, 0);
/* Check error */
if (ZSTD_isError(zstd_ret)) {
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state != NULL) {
set_zstd_error(mod_state, ERR_DECOMPRESS, zstd_ret);
}
/* Check .eof flag */
if (self->eof) {
- PyErr_SetString(PyExc_EOFError, "Already at the end of a Zstandard frame.");
+ PyErr_SetString(PyExc_EOFError,
+ "Already at the end of a Zstandard frame.");
assert(ret == NULL);
return NULL;
}
if (!use_input_buffer) {
/* Discard buffer if it's too small
(resizing it may needlessly copy the current contents) */
- if (self->input_buffer != NULL &&
- self->input_buffer_size < data_size)
+ if (self->input_buffer != NULL
+ && self->input_buffer_size < data_size)
{
PyMem_Free(self->input_buffer);
self->input_buffer = NULL;
/* Decompression context */
self->dctx = ZSTD_createDCtx();
if (self->dctx == NULL) {
- _zstd_state* const mod_state = PyType_GetModuleState(Py_TYPE(self));
+ _zstd_state* mod_state = PyType_GetModuleState(Py_TYPE(self));
if (mod_state != NULL) {
PyErr_SetString(mod_state->ZstdError,
"Unable to create ZSTD_DCtx instance.");
"after that, an EOFError exception will be raised.");
PyDoc_STRVAR(ZstdDecompressor_needs_input_doc,
-"If the max_length output limit in .decompress() method has been reached, and\n"
-"the decompressor has (or may has) unconsumed input data, it will be set to\n"
-"False. In this case, pass b'' to .decompress() method may output further data.");
+"If the max_length output limit in .decompress() method has been reached,\n"
+"and the decompressor has (or may has) unconsumed input data, it will be set\n"
+"to False. In this case, passing b'' to the .decompress() method may output\n"
+"further data.");
static PyMemberDef ZstdDecompressor_members[] = {
{"eof", Py_T_BOOL, offsetof(ZstdDecompressor, eof),
at least 8 bytes */
if (Py_SIZE(self->dict_content) < 8) {
PyErr_SetString(PyExc_ValueError,
- "Zstandard dictionary content should at least 8 bytes.");
+ "Zstandard dictionary content should at least "
+ "8 bytes.");
goto error;
}
/* Get dict_id, 0 means "raw content" dictionary. */
- self->dict_id = ZSTD_getDictID_fromDict(PyBytes_AS_STRING(self->dict_content),
- Py_SIZE(self->dict_content));
+ self->dict_id = ZSTD_getDictID_fromDict(
+ PyBytes_AS_STRING(self->dict_content),
+ Py_SIZE(self->dict_content));
/* Check validity for ordinary dictionary */
if (!is_raw && self->dict_id == 0) {
}
static PyMemberDef ZstdDict_members[] = {
- {"dict_id", Py_T_UINT, offsetof(ZstdDict, dict_id), Py_READONLY, ZstdDict_dictid_doc},
- {"dict_content", Py_T_OBJECT_EX, offsetof(ZstdDict, dict_content), Py_READONLY, ZstdDict_dictcontent_doc},
+ {"dict_id", Py_T_UINT, offsetof(ZstdDict, dict_id), Py_READONLY,
+ ZstdDict_dictid_doc},
+ {"dict_content", Py_T_OBJECT_EX, offsetof(ZstdDict, dict_content),
+ Py_READONLY, ZstdDict_dictcontent_doc},
{NULL}
};
Load as a digested dictionary to compressor.
-Pass this attribute as zstd_dict argument: compress(dat, zstd_dict=zd.as_digested_dict)
+Pass this attribute as zstd_dict argument:
+compress(dat, zstd_dict=zd.as_digested_dict)
+
1. Some advanced compression parameters of compressor may be overridden
by parameters of digested dictionary.
2. ZstdDict has a digested dictionaries cache for each compression level.
static PyObject *
_zstd_ZstdDict_as_digested_dict_get_impl(ZstdDict *self)
-/*[clinic end generated code: output=09b086e7a7320dbb input=10cd2b6165931b77]*/
+/*[clinic end generated code: output=09b086e7a7320dbb input=ee45e1b4a48f6f2c]*/
{
return Py_BuildValue("Oi", self, DICT_TYPE_DIGESTED);
}
Load as an undigested dictionary to compressor.
-Pass this attribute as zstd_dict argument: compress(dat, zstd_dict=zd.as_undigested_dict)
+Pass this attribute as zstd_dict argument:
+compress(dat, zstd_dict=zd.as_undigested_dict)
+
1. The advanced compression parameters of compressor will not be overridden.
2. Loading an undigested dictionary is costly. If load an undigested dictionary
multiple times, consider reusing a compressor object.
static PyObject *
_zstd_ZstdDict_as_undigested_dict_get_impl(ZstdDict *self)
-/*[clinic end generated code: output=43c7a989e6d4253a input=11e5f5df690a85b4]*/
+/*[clinic end generated code: output=43c7a989e6d4253a input=d39210eedec76fed]*/
{
return Py_BuildValue("Oi", self, DICT_TYPE_UNDIGESTED);
}
Load as a prefix to compressor/decompressor.
-Pass this attribute as zstd_dict argument: compress(dat, zstd_dict=zd.as_prefix)
+Pass this attribute as zstd_dict argument:
+compress(dat, zstd_dict=zd.as_prefix)
+
1. Prefix is compatible with long distance matching, while dictionary is not.
2. It only works for the first frame, then the compressor/decompressor will
return to no prefix state.
static PyObject *
_zstd_ZstdDict_as_prefix_get_impl(ZstdDict *self)
-/*[clinic end generated code: output=6f7130c356595a16 input=b028e0ae6ec4292b]*/
+/*[clinic end generated code: output=6f7130c356595a16 input=d59757b0b5a9551a]*/
{
return Py_BuildValue("Oi", self, DICT_TYPE_PREFIX);
}