LLAPI_LAYO...E_COMP_ADD(3)

✨ LLAPI_LAYO...E_COMP_ADD(3) ✨

okay bestie, gather round 💖 this one lives in the Lustre Library Functions section of the manual, and it's genuinely such a useful little guy. no cap.

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🌸 NAME 🌸

llapi_layout_file_comp_add — add one or more components into an existing file.

like... the file already exists, you're just decorating it with more components. it's giving glow-up 💅

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🦋 SYNOPSIS 🦋

#include <lustre/lustreapi.h>

int llapi_layout_file_comp_add(const char *path,
                               const struct llapi_layout *layout);

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💜 DESCRIPTION 💜

so basically: this function takes the component(s) that you've already described inside layout and adds them into the file sitting at path. the file has to already exist — you're not creating anything new here, you're adding to what's already there. main character energy, honestly 👑

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✨ RETURN VALUES ✨

• 0 — slay, it worked. success 💖
• -1 — it did not work, an error happened. in that case, errno gets set to something appropriate so you can figure out what went wrong. not me crying over a failed syscall 😭

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🔥 ERRORS 🔥

• EINVAL — you passed in an invalid argument. something about it was just... not it 🙈
• ENOENT — path doesn't exist. the file is simply not there, bestie. gone. ghosted 💀

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🌈 AVAILABILITY 🌈

llapi_layout_file_comp_add() has been part of the lustre(7) user application interface library since release 2.10.0. so if you're on anything older... yeah, no. 🧚

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🎀 SEE ALSO 🎀

• llapi_layout_alloc(3)
• llapi_layout_comp_add(3)
• llapi_layout_comp_del(3)
• llapi_layout_file_open(3)
• llapi_layout(7)
• lustreapi(7)

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fr fr, read the SEE ALSO list. it's your group chat, they've got the lore 🫶

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Lustre User API · 2024-08-27 — that's the source and the date, bestie, and that's a wrap 💅✨ periodt.