EC_LOG_FCT_REGISTER(3)

💖 EC_LOG_FCT_REGISTER 💖

okay so bestie, welcome to EC_LOG_FCT_REGISTER(3) from the Libecoli Programmer's Manual — yes we're in section 3, we're in the library, we're thriving ✨

This one is called ec_log_fct_register and its whole vibe is: you get to register a user log function. that's it. that's the girl. she's a lil registrar 🎀

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✨ NAME ✨

ec_log_fct_register — Register a user log function. 💅

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🌸 SYNOPSIS 🌸

#include <ecoli/log.h>

int ec_log_fct_register(
    /*
     * Function pointer that will be invoked for each log call. If the
     * parameter is NULL, ec_log_default_cb() is used.
     */
    ec_log_t  usr_log,
    void     *opaque    /* Opaque pointer passed to the log function. */
);

okay so let's talk about these two little guys:

• usr_log — this is the function pointer that gets invoked for each log call. and listen, if you hand it NULL? no stress, ec_log_default_cb() is used instead. she's the understudy and she's ready 🫶
• opaque — an opaque pointer that gets passed to the log function. mysterious. iconic. we don't ask what's inside, we just pass her along 🙈

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🦋 RETURN VALUE 🦋

• 0 on success 🎉
• -1 on error 😭 (and errno is set, so go check on her)

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🌈 SEE ALSO 🌈

the whole friend group, fr fr:

• ec_log_level_set(3)
• ec_vlog(3)
• ec_log_level_get(3)
• ec_log_name(3)
• ec_log(3)
• ec_log_default_cb(3)
• ec_log_type_register(3)

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👑 COPYRIGHT 👑

Copyright (C) 2010-2026 Olivier Matz, Robin Jarry.

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no cap, that's the whole page. go register your function, bestie, it's giving main character energy 💜

libecoli · 2026-06-11 · EC_LOG_FCT_REGISTER(3) — mwah, that's a wrap, iykyk 🎀✨💖