zstd_create_cctx_advanced(9)

✨ zstd_create_cctx_advanced(9) ✨

okay bestie, welcome to the Kernel API Manual 💖 you're literally about to learn how to spin up a compression context, and honestly? it's giving main character energy. this one is zstd_create_cctx_advanced and it's the ~fancy~ version of creating a cctx, because you get to bring your own allocator. slay 🎀

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🌸 NAME 🌸

zstd_create_cctx_advanced — create a compression context, but make it advanced 💅

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🦋 SYNOPSIS 🦋

zstd_cctx * zstd_create_cctx_advanced (zstd_custom_mem custom_mem );

so you call it, you hand it a custom memory thing, you get back a zstd_cctx *. that's the whole vibe check. ✨

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🎀 ARGUMENTS 🎀

• custom_mem — your custom allocator, bestie. that's it, that's the whole argument. no cap. 🫶

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⭐ RETURN ⭐

• NULL on error 😭
• a pointer to the compression context otherwise 👑 (this is the good ending, we love to see it)

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🌈 SEE ALSO 🌈

okay so there are a lot of friends in this friend group, and you gotta know all of them, so here we go — no skipping, iykyk:

• the Kernel file ./include/linux/zstd.h 📁
• 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_free_cctx(9)
• zstd_create_cdict_byreference(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)

literally the whole squad 💜

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lowkey reminder: if you get NULL back, that means error, so maybe don't go dereferencing it. just saying. 🙈

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and that's the page, bestie!! 🌸 this iconic little writeup lives in ./include/linux and it's dated October 2026 — so go forth, allocate custom memory, and compress ur heart out. periodt. 💅🔥🎀