QUORUM_FD_GET(3)

💖 quorum_fd_get(3) 💖

okay bestie, welcome to the Corosync Cluster Engine Programmer's Manual ✨ this one's a lil cutie, it's a page from the Corosync Cluster Engine Programmer's Manual and it's literally just about grabbing one file descriptor. one. that's the whole vibe. no cap.

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🌸 NAME 🌸

quorum_fd_get — Dispatches callbacks from the quorum service

like… the name says dispatch callbacks but the function is the fd-getter, and honestly that's giving "my job title vs what I actually do" 😭 anyway.

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✨ SYNOPSIS ✨

#include <corosync/quorum.h>

int quorum_fd_get(quorum_handle_t handle, int *fd);

two args, one int returned. that's it. she's simple, she's effective, she's an icon 💅

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🦋 DESCRIPTION 🦋

so the quorum_fd_get function is what you use to retrieve the file descriptor you can hand off to the poll system call, so you know when quorum_dispatch(3) won't block. that's the whole point bestie — you wanna know when to call dispatch, and this fd is how poll tells you. 🔥

⚠️ important!! the handle argument may not be used directly with poll, because it is not the file descriptor. it's an internal identifier used by the quorum library. do not pass the handle to poll, i am begging you 🙈

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💜 RETURN VALUE 💜

this call returns the CS_OK value if it's successful, otherwise an error gets returned. so like, check your return value, babe, it's giving ✨communication✨

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🎀 ERRORS 🎀

here's the whole roster of ways this can go sideways, no gatekeeping:

• CS_ERR_TRY_AGAIN — Resource temporarily unavailable
• CS_ERR_INVALID_PARAM — Invalid argument
• CS_ERR_ACCESS — Permission denied
• CS_ERR_LIBRARY — The connection failed
• CS_ERR_INTERRUPT — System call interrupted by a signal
• CS_ERR_NOT_SUPPORTED — The requested protocol/functionality not supported
• CS_ERR_MESSAGE_ERROR — Incorrect auth message received
• CS_ERR_NO_MEMORY — Not enough memory to complete the requested task

that's all eight, fr fr. none skipped, we don't do that here 💖

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🌈 SEE ALSO 🌈

go read these next, bestie, they're all in the fam:

• quorum_overview(3)
• quorum_initialize(3)
• quorum_model_initialize(3)
• quorum_finalize(3)
• quorum_getquorate(3)
• quorum_trackstart(3)
• quorum_trackstop(3)
• quorum_dispatch(3)
• quorum_context_set(3)
• quorum_context_get(3)

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and that's the whole page!! periodt 💅✨ this lil masterpiece is from the corosync Man Page, dated 2026-09-04, and it belongs to the Corosync Cluster Engine Programmer's Manual 🫶 go poll responsibly, queen 👑💖