POSIX_SPAWNATTR_SETSIGMASK(3)

💖 POSIX_SPAWNATTR_GETSIGMASK(3) 💖

okay bestie, this is a Library Functions Manual page for POSIX_SPAWNATTR_GETSIGMASK(3), and the header line says POSIX_SPAWNATTR_GETSIGMA(3) (yes, it’s missing the sk, not me). We’re covering posix_spawnattr_getsigmask and posix_spawnattr_setsigmask, aka the get-and-set duo for the spawn-sigmask attribute. 🎀

🌸 NAME 🌸

posix_spawnattr_getsigmask, posix_spawnattr_setsigmask — get and set the spawn-sigmask attribute of a spawn attributes object. That’s the assignment, bestie. 💅

🧚 LIBRARY 🧚

Standard C Library (libc, -lc). The classic. 💖

✨ SYNOPSIS ✨

#include <spawn.h>

int
posix_spawnattr_getsigmask(const posix_spawnattr_t *restrict attr,
    sigset_t *restrict sigmask);

int
posix_spawnattr_setsigmask(posix_spawnattr_t *attr,
    const sigset_t *restrict sigmask);

🦋 DESCRIPTION 🦋

Okay so posix_spawnattr_getsigmask() is the getter: it obtains the value of the spawn-sigmask attribute from the attributes object referenced by attr. 🫶

posix_spawnattr_setsigmask() is the setter bestie: it sets the spawn-sigmask attribute in an initialized attributes object referenced by attr. 🎀

And what even is the spawn-sigmask attribute? It represents the signal mask in effect in the new process image of a spawn operation — but only if POSIX_SPAWN_SETSIGMASK is set in the spawn-flags attribute. The default value of this attribute is unspecified. That’s the lore. 🌈

🔥 RETURN VALUES 🔥

posix_spawnattr_getsigmask() and posix_spawnattr_setsigmask() return zero. That’s it. Zero. No cap. 💀

👑 SEE ALSO 👑

go read these too, they’re the friend group:

• posix_spawn(3)
• posix_spawnattr_destroy(3)
• posix_spawnattr_getsigmask(3)
• posix_spawnattr_init(3)
• posix_spawnattr_setsigmask(3)
• posix_spawnp(3)

💜 STANDARDS 💜

posix_spawnattr_getsigmask() and posix_spawnattr_setsigmask() conform to IEEE Std 1003.1-2001 (“POSIX.1”). Periodt. ✨

🍓 HISTORY 🍓

The posix_spawnattr_getsigmask() and posix_spawnattr_setsigmask() functions first appeared in FreeBSD 8.0. Iconic behavior. 🦋

🌟 AUTHORS 🌟

Ed Schouten <ed@FreeBSD.org>. Thank you for your service. 🫶

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sign-off: Debian · March 24, 2008 · POSIX_SPAWNATTR_GETSIGMASK(3) 💅