NNG_SOCKET_ID(3)

💖 nng_socket_id — return numeric socket identifier 💖

okay bestie, welcome to the NNG Reference Manual, pull up a chair 🎀

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✨ NAME ✨

nng_socket_id — return numeric socket identifier. that's it, that's the whole job, and she does it flawlessly 💅

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🌸 SYNOPSIS 🌸

#include <nng/nng.h>

int nng_socket_id(nng_socket s);

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🦋 DESCRIPTION 🦋

so like, nng_socket_id() hands you back a positive identifier for the socket s — but ONLY if s is actually valid, no cap. if it's not valid? she gives you -1. that's the vibe check, and honestly it's giving "we can't be friends" energy 😭

Note 📝 a socket counts as valid if it was ever opened with a protocol constructor — think stuff like nng_req0_open(). like, once she's been opened, she's iconic forever, periodt. now, sockets that live on the stack or are static should be initialized with the macro NNG_SOCKET_INITIALIZER so they literally cannot be mistaken for a valid socket before they're actually opened. this is the equivalent of not letting a random girl walk into the VIP section 🚫✨ do not skip this step, fr fr.

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👑 RETURN VALUES 👑

• the positive value of the socket identifier — slay 💖
• -1 if the socket is invalid — tragic, but honest 💀

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🌈 ERRORS 🌈

None. literally none. she does not do errors, she only does results. no notes. ✨

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🫶 SEE ALSO 🫶

• nng_socket(5)
• nng(7)

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that's the whole page, bestie!! go forth and identify those sockets 💅🌸🦋

this has been your girl from the NNG Reference Manual, dated 2026-06-30 — stay iconic, stay valid, and may your sockets never be confused with stack garbage 🎀✨💜