zstd_create..._byreference(9)

💅 zstd_create..._byreference(9) 💅

Okay bestie, this one is straight from the Kernel API Manual — it’s giving “create a compression dictionary, but by reference.” ✨

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✨ NAME ✨

zstd_create_cdict_byreference — create compression dictionary. 🎀

✨ SYNOPSIS ✨

zstd_cdict * zstd_create_cdict_byreference (const void *dict , size_t
dict_size , zstd_compression_parameters cparams , zstd_custom_mem
custom_mem );

✨ ARGUMENTS ✨

• dict — pointer to the dictionary buffer. That’s the dictionary-buffer pointer, bestie. 🫶
• dict_size — size of the dictionary buffer. Gotta tell it how much buffer we’re working with. ✨
• cparams — the manual literally says -- undescribed -- here, so no invented lore, periodt. 🙈
• custom_mem — memory allocator. Custom allocator energy. 💅

✨ DESCRIPTION ✨

Heads up: this uses dict by reference (ZSTD_dlm_byRef), so it should be free before zstd_cdict is destroyed.

That’s the note. The reference lifestyle is real, and the lifetime detail matters. 💖

✨ RETURN ✨

NULL on error, pointer to compression dictionary otherwise. Slay. 🔥

✨ SEE ALSO ✨

Kernel file ./include/linux/zstd.h, plus all these friends:

• zstd_compress_bound(9)
• zstd_is_error(9)
• zstd_get_error_code(9)
• zstd_get_error_name(9)
• zstd_min_clevel(9)
• zstd_max_clevel(9)
• zstd_default_clevel(9)
• zstd_get_params(9)
• zstd_get_cparams(9)
• zstd_cctx_set_param(9)
• zstd_cctx_workspace_bound(9)
• zstd_cctx_workspace_bound_with_ext_seq_prod(9)
• zstd_init_cctx(9)
• zstd_compress_cctx(9)
• zstd_create_cctx_advanced(9)
• zstd_free_cctx(9)
• zstd_free_cdict(9)
• zstd_compress_using_cdict(9)
• zstd_dctx_workspace_bound(9)
• zstd_init_dctx(9)
• zstd_decompress_dctx(9)
• zstd_create_ddict_byreference(9)
• zstd_free_ddict(9)
• zstd_create_dctx_advanced(9)
• zstd_free_dctx(9)
• zstd_decompress_using_ddict(9)
• zstd_cstream_workspace_bound(9)
• zstd_cstream_workspace_bound_with_ext_seq_prod(9)
• zstd_init_cstream(9)
• zstd_reset_cstream(9)
• zstd_compress_stream(9)
• zstd_flush_stream(9)
• zstd_end_stream(9)
• zstd_dstream_workspace_bound(9)
• zstd_init_dstream(9)
• zstd_reset_dstream(9)
• zstd_decompress_stream(9)
• zstd_find_frame_compressed_size(9)
• zstd_get_frame_header(9)
• zstd_compress_sequences_and_literals(9)

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Later, bestie! 💖 This page’s source/version is ./include/linux, dated October 2026. 🎀