nvme_ns_get_fd(2)

💅 nvme_ns_get_fd(2) — libnvme API manual

okay so bestie, welcome to the section 2 era of the libnvme API manual, and today's main character is nvme_ns_get_fd ✨ she's tiny, she's simple, and she hands you a file descriptor like it's a little gift 🎀

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✨ NAME ✨

nvme_ns_get_fd — get the associated file descriptor 🫶

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✨ SYNOPSIS ✨

int nvme_ns_get_fd (nvme_ns_t n );

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✨ ARGUMENTS ✨

• n — the namespace instance 🌸 that's it, that's the whole argument list, she's low maintenance

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✨ DESCRIPTION ✨

so here's the vibe: libnvme will open the file for you — but only if it's not already opened 🙈 — and it keeps an internal copy of the file descriptor. Like, it's holding your fd in its notes app, fr fr. 📝

after that, every following call to this API just retrieves the internal cached copy of the file descriptor. no re-opening, no drama, just vibes. ✨

the file stays opened and the fd stays cached until either:

• the ns object gets deleted 💀, or
• nvme_ns_release_fd is called 👋

bestie pls remember: the fd is being cached for you, so nothing closes itself. you gotta be the one to end things properly. it's giving healthy boundaries 💅

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✨ RETURN ✨

the file descriptor associated with n, or -1 if it's not giving 😭

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ngl this page is short and iconic and that's on periodt 👑

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that's the whole page, babe — sourced from the libnvme API manual, last touched July 2026, and filed under nvme_ns_get_fd(2). go forth and close your fds 🫶💖🌈