CMAP_...ALIZE(3)

💖 CMAP_...ALIZE(3) — bestie edition 💖

okay so this is a page from the Corosync Cluster Engine Programmer's Manual, and it's about one tiny but mighty little function. no cap. let's get into it 🫶

✨ NAME ✨

cmap_iter_finalize — Finalize iterator for keys stored in CMAP

like... it's the cleanup crew. the one who turns off the lights after the party. iconic behavior honestly 💅

✨ SYNOPSIS ✨

#include <corosync/cmap.h>

cs_error_t cmap_iter_finalize (cmap_handle_t handle, cmap_iter_handle_t
iter_handle);

that's the whole vibe check right there bestie, two args, one return value, we move 🌸

✨ DESCRIPTION ✨

so the cmap_iter_finalize function is the one you call when you're done iterating — it frees up the memory that got associated with the iteration you started by calling cmap_iter_init(3). think of it as the "okay bye, thank you for coming to my TED talk" of memory management. not me leaving dangling memory behind 😭 never.

the handle argument is your connection to the CMAP database, and you get that by calling cmap_initialize(3). it's giving "your membership card to the club" 💳✨

the iter_handle argument is the iterator handle — and you get that one from calling cmap_iter_init(3). it's the little ticket that says which iteration we're wrapping up 🎀

so basically: you initialized it, you iterated with it, and now you're finalizing it. full circle. main character energy fr fr 🔥

✨ RETURN VALUE ✨

this call returns the CS_OK value if successful. that's the slay outcome. 💚

the CS_ERR_BAD_HANDLE error gets returned when iter_handle is invalid — so if you pass it something fake, it will clock it and hand you that error back. vibe check failed, sorry bestie 💀

✨ SEE ALSO ✨

• cmap_iter_init(3)
• cmap_initialize(3)
• cmap_overview(3)

and here's the lil error-code roundup that lives down here too, in all its glory:

• 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

quick reminder bestie: if you don't finalize your iterator, the memory just... sits there. haunting you. don't do that to yourself 🙈

and that's the page!! 🦋 this one came out of the corosync Man Page, dated 06/02/2012. periodt. go finalize something, ily, bye 💖✨🎀