POSIX_SPAWNATTR_SETSCHEDPARAM(3)

💅 POSIX_SPAWNATTR_GETSCHEDPARAM(3) 💅

okay so bestie, this one is from the Library Functions Manual, and it’s all about two lil functions that get and set the spawn-schedparam attribute on a spawn attributes object. Very niche, very scheduler-coded, very “trust me, you need this for posix_spawn” energy. ✨

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🌸 NAME 🌸

posix_spawnattr_getschedparam, posix_spawnattr_setschedparam — get and set the spawn-schedparam attribute of a spawn attributes object

📚 LIBRARY 📚

Standard C Library (libc, -lc)

🎀 SYNOPSIS 🎀

#include <spawn.h>

int
posix_spawnattr_getschedparam(const posix_spawnattr_t *restrict attr,
    struct sched_param *restrict schedparam);

int
posix_spawnattr_setschedparam(posix_spawnattr_t *attr,
    const struct sched_param *restrict schedparam);

✨ DESCRIPTION ✨

The posix_spawnattr_getschedparam() function is the getter bestie: it obtains the value of the spawn-schedparam attribute from the attributes object referenced by attr. 💖

The posix_spawnattr_setschedparam() function is the setter bestie: it sets the spawn-schedparam attribute in an initialized attributes object referenced by attr. 🫶

And what even is the spawn-schedparam attribute? It represents the scheduling parameters that get assigned to the new process image in a spawn operation — but only if POSIX_SPAWN_SETSCHEDULER or POSIX_SPAWN_SETSCHEDPARAM is set in the spawn-flags attribute. Yes, that’s the vibe check. Its default value is unspecified, so don’t go assuming anything, bestie. 💅

💀 RETURN VALUES 💀

The posix_spawnattr_getschedparam() and posix_spawnattr_setschedparam() functions return zero. That’s it. Zero. Both of them. Slay. ✨

🔥 SEE ALSO 🔥

• posix_spawn(3)
• posix_spawnattr_destroy(3)
• posix_spawnattr_getschedpolicy(3)
• posix_spawnattr_init(3)
• posix_spawnattr_setschedpolicy(3)
• posix_spawnp(3)

👑 STANDARDS 👑

The posix_spawnattr_getschedparam() and posix_spawnattr_setschedparam() functions conform to IEEE Std 1003.1-2001 (“POSIX.1”). Periodt. 🌈

🦋 HISTORY 🦋

The posix_spawnattr_getschedparam() and posix_spawnattr_setschedparam() functions first appeared in FreeBSD 8.0. Iconic behavior, honestly. 💜

🍓 AUTHORS 🍓

• Ed Schouten <ed@FreeBSD.org> — yes, the actual author credit, no cap. 😭

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This page was brought to you by Debian, dated March 24, 2008. Thanks for coming to my Unix talk. 💖✨🎀