LLAPI_CHANGELOG_IN_BUF(3)

💖 LLAPI_CHANGELOG_IN_BUF 💖

okay bestie, so this is a Lustre Library Functions situation, from the lustreapi manual — and it's literally one of the shortest little icons in the whole API 💅

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✨ NAME ✨

llapi_changelog_in_buf — peek inside the internal buffer and check if there are any changelog records chillin' in there 🎀

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🌸 SYNOPSIS 🌸

#include <lustre/lustreapi.h>

int llapi_changelog_in_buf(void *priv);

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🦋 DESCRIPTION 🦋

So the way that llapi_changelog_in_buf() works is it checks whether there are still changelog records hanging out in the read buffer for the priv instance. That's it. That's the whole job. Lowkey iconic for how simple it is.

And here's the tea 🫖 — you can pair llapi_changelog_in_buf() with llapi_changelog_recv() so you can dequeue all the changelog records that are still sitting in the read buffer. Like, drain the whole thing, no records left behind, main character energy 💜

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💫 RETURN VALUES 💫

• Returns 1 if changelog records are present in the internal read buffer ✨
• otherwise returns 0 (empty buffer vibes, nothing to see here 🙈)

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🌈 AVAILABILITY 🌈

llapi_changelog_in_buf is part of the lustre(7) user application interface library, and it's been serving looks since release 2.13.0 👑

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👀 SEE ALSO 👀

• llapi_changelog_clear(3)
• llapi_changelog_get_fd(3)
• llapi_changelog_recv(3)
• llapi_changelog_start(3)
• llapi_changelog_start_user(3)
• lustreapi(7)

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no cap: if you're looping on llapi_changelog_in_buf(), the 1 means keep receiving and the 0 means you're done, periodt 🫶

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k that's the whole page bestie, love that for us 💖 this was Lustre User API, last touched 2024-08-22, and you can find it under the LLAPI_CHANGELOG_IN_BUF(3) tag if you ever need to come back. bye mwah 😭💅