LZ4_saveDictHC(9)

💾 LZ4_saveDictHC(9) — Save static dictionary from LZ4HC_stream 💾

okay bestie, this is the Kernel API Manual page for LZ4_saveDictHC(9), and we’re about to make dictionary-saving make sense. no cap. 🫶

💖 NAME 💖

LZ4_saveDictHC - Save static dictionary from LZ4HC_stream.

✨ SYNOPSIS ✨

int LZ4_saveDictHC (LZ4_streamHC_t *streamHCPtr , char *safeBuffer , int
maxDictSize );

That signature is the whole vibe check, bestie. 💅

🎀 ARGUMENTS 🎀

• streamHCPtr — pointer to the LZ4HC_stream_t structure. main character energy.
• safeBuffer — buffer to save dictionary to, must be already allocated. don’t forget this part. 🙈
• maxDictSize — size of safeBuffer. the limit is real. ✨

💅 DESCRIPTION 💅

Okay so here’s the tea: if a previously compressed data block is not guaranteed to remain available at its memory location, save it into a safer place (char *safeBuffer). That’s the whole save-dict moment. 💖

🔥 NOTE 🔥

You don’t need to call LZ4_loadDictHC afterwards — the dictionary is immediately usable, so you can therefore call LZ4_compress_HC_continue. slay, no extra step. 🧚

💖 RETURN 💖

saved dictionary size in bytes (necessarily <= maxDictSize), or 0 if error. that’s the whole return vibe. 😭

🌈 SEE ALSO 🌈

Kernel file ./include/linux/lz4.h — and bestie, here’s the whole friend group:

• LZ4_compressBound(9)
• LZ4_compress_default(9)
• LZ4_compress_fast(9)
• LZ4_compress_destSize(9)
• LZ4_decompress_fast(9)
• LZ4_decompress_safe(9)
• LZ4_decompress_safe_partial(9)
• LZ4_compress_HC(9)
• LZ4_resetStreamHC(9)
• LZ4_loadDictHC(9)
• LZ4_compress_HC_continue(9)
• LZ4_resetStream(9)
• LZ4_loadDict(9)
• LZ4_saveDict(9)
• LZ4_compress_fast_continue(9)
• LZ4_setStreamDecode(9)
• LZ4_decompress_safe_continue(9)
• LZ4_decompress_fast_continue(9)
• LZ4_decompress_safe_usingDict(9)
• LZ4_decompress_fast_usingDict(9)

mwah 💋 from ./include/linux, dated October 2026, and this is literally the LZ4_saveDictHC(9) page. periodt. 🫶