[−][src]Crate zstd_safe

Minimal safe wrapper around zstd-sys.

This crates provides a minimal translation of the zstd-sys methods. For a more comfortable high-level library, see the zstd crate.

Most of the functions here map 1-for-1 to a function from the C zstd library mentionned in their descriptions. Check the source documentation for more information on their behaviour.

Features denoted as experimental in the C library are hidden behind an experimental feature.

Structs

CCtx
CDict	Compression dictionary.
DCtx	A Decompression Context.
DDict
InBuffer	Wrapper around an input buffer.
OutBuffer	Wrapper around an output buffer.

Enums

CParameter	A compression parameter.
DParameter	A decompression parameter.
FrameFormat
ResetDirective	Reset directive.
Strategy	How to compress data.

Constants

BLOCKSIZELOG_MAX
BLOCKSIZE_MAX
CHAINLOG_MAX_32
CHAINLOG_MAX_64
CHAINLOG_MIN
CLEVEL_DEFAULT	Default compression level.
CONTENTSIZE_ERROR
CONTENTSIZE_UNKNOWN
HASHLOG3_MAX
HASHLOG_MIN
LDM_BUCKETSIZELOG_MAX
LDM_MINMATCH_MAX
LDM_MINMATCH_MIN
MAGICNUMBER
MAGIC_DICTIONARY
MAGIC_SKIPPABLE_START
SEARCHLOG_MIN
TARGETLENGTH_MAX
TARGETLENGTH_MIN
VERSION_MAJOR
VERSION_MINOR
VERSION_NUMBER
VERSION_RELEASE
WINDOWLOG_MAX_32
WINDOWLOG_MAX_64
WINDOWLOG_MIN

Functions

cctx_load_dictionary	Wraps the `ZSTD_CCtx_loadDictionary()` function.
cctx_ref_cdict	Wraps the `ZSTD_CCtx_refCDict()` function.
cctx_ref_prefix	Wraps the `ZSTD_CCtx_refPrefix()` function.
cctx_reset	Wraps the `ZSTD_CCtx_reset()` function.
cctx_set_parameter	Wraps the `ZSTD_CCtx_setParameter()` function.
cctx_set_pledged_src_size	Wraps the `ZSTD_CCtx_setPledgedSrcSize()` function.
compress	Wraps the `ZSTD_compress` function.
compress2	Wraps the `ZSTD_compress2()` function.
compress_block	Wraps the `ZSTD_compressBlock()` function.
compress_bound	maximum compressed size in worst case single-pass scenario
compress_cctx	Wraps the `ZSTD_compressCCtx()` function
compress_stream	Wraps the `ZSTD_compressStream()` function.
compress_stream2	Wraps the `ZSTD_compressStream2()` function.
compress_using_cdict	Wraps the `ZSTD_compress_usingCDict()` function.
compress_using_dict	Wraps the `ZSTD_compress_usingDict()` function.
create_cctx
create_cdict	Wraps the `ZSTD_createCDict()` function.
create_cdict_by_reference	Wraps the `ZSTD_createCDict_byReference()` function.
create_cstream	Allocates a new `CStream`.
create_dctx	Prepares a new decompression context without dictionary.
create_ddict	Wraps the `ZSTD_createDDict()` function.
create_ddict_by_reference	Wraps the `ZSTD_createDDict_byReference()` function.
create_dstream
cstream_in_size	Wraps `ZSTD_CStreamInSize()`
cstream_out_size	Wraps `ZSTD_CStreamOutSize()`
dctx_load_dictionary	Wraps the `ZSTD_DCtx_loadDictionary()` function.
dctx_ref_ddict	Wraps the `ZSTD_DCtx_refDDict()` function.
dctx_ref_prefix	Wraps the `ZSTD_DCtx_refPrefix()` function.
dctx_reset	Wraps the `ZSTD_DCtx_reset()` function.
dctx_set_parameter	Wraps the `ZSTD_DCtx_setParameter()` function.
decompress	Wraps the `ZSTD_decompress` function.
decompress_block	Wraps the `ZSTD_decompressBlock()` function.
decompress_dctx	Wraps the `ZSTD_decompressDCtx()` function.
decompress_stream	Wraps the `ZSTD_decompressStream()` function.
decompress_using_ddict	Wraps the `ZSTD_decompress_usingDDict()` function.
decompress_using_dict	Wraps the `ZSTD_decompress_usingDict()` function.
dstream_in_size	Wraps the `ZSTD_DStreamInSize()` function.
dstream_out_size	Wraps the `ZSTD_DStreamOutSize()` function.
end_stream	Wraps the `ZSTD_endStream()` function.
find_decompressed_size	Wraps the `ZSTD_findDecompressedSize()` function.
find_frame_compressed_size	Wraps the `ZSTD_findFrameCompressedSize()` function.
flush_stream	Wraps the `ZSTD_flushStream()` function.
get_block_size	Wraps the `ZSTD_getBlockSize()` function.
get_decompressed_size	Deprecated Wraps the `ZSTD_getDecompressedSize` function.
get_dict_id	Wraps the `ZSTD_getDictID_fromDict()` function.
get_dict_id_from_ddict	Wraps the `ZSTD_getDictID_fromDDict()` function.
get_dict_id_from_dict	Wraps the `ZSTD_getDictID_fromDict()` function.
get_dict_id_from_frame	Wraps the `ZSTD_getDictID_fromFrame()` function.
get_error_name
get_frame_content_size	Wraps the `ZSTD_getFrameContentSize()` function.
init_cstream	Prepares an existing `CStream` for compression at the given level.
init_cstream_src_size	Wraps the `ZSTD_initCStream_srcSize()` function.
init_cstream_using_cdict	Wraps the `ZSTD_initCStream_usingCDict()` function.
init_cstream_using_dict	Wraps the `ZSTD_initCStream_usingDict()` function.
init_dstream	Wraps the `ZSTD_initCStream()` function.
init_dstream_using_ddict	Wraps the `ZSTD_initDStream_usingDDict()` function.
init_dstream_using_dict	Wraps the `ZSTD_initDStream_usingDict()` function.
insert_block	Wraps the `ZSTD_insertBlock()` function.
is_frame	Wraps the `ZSTD_isFrame()` function.
max_c_level	Returns the maximum (slowest) compression level supported.
min_c_level	Returns the minimum (fastest) compression level supported.
reset_cstream	Wraps the `ZSTD_resetCStream()` function.
reset_dstream	Wraps the `ZSTD_resetDStream()` function.
sizeof_cctx	Wraps the `ZSTD_sizeofCCtx()` function.
sizeof_cdict	Wraps the `ZSTD_sizeof_CDict()` function.
sizeof_cstream	Wraps the `ZSTD_sizeof_CStream()` function.
sizeof_dctx	Wraps the `ZSTD_sizeof_DCtx()` function.
sizeof_ddict	Wraps the `ZSTD_sizeof_DDict()` function.
sizeof_dstream	Wraps the `ZSTD_sizeof_DStream()` function.
train_from_buffer	Wraps thge `ZDICT_trainFromBuffer()` function.
version_number
version_string

Type Definitions

CStream	Compression stream.
CompressionLevel	Represents the compression level used by zstd.
DStream	A Decompression stream.
ErrorCode	Represents a possible error from the zstd library.
SafeResult	Wrapper result around most zstd functions.