PTHREAD_RWLOCKATTR_INIT(3)

💅 PTHREAD_RWLOCKATTR_INIT(3) — like, the read/write lock attributes init page, bestie

okay so this is a page from the Library Functions Manual (yes, section 3, we're in libcall land 🎀) and it's about giving your rwlock attributes object its first little breath of life. short page, but every word is iconic, so let's go.

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✨ NAME ✨

pthread_rwlockattr_init — initialize a read/write lock attributes object

like, you're literally breathing life into an attributes object. that's the whole job. main character energy fr fr 🦋

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📚 LIBRARY 📚

POSIX Threads Library (libpthread, -lpthread)

ngl if you forgot to link -lpthread you're gonna have a bad time, so don't do that to yourself 💀

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🌸 SYNOPSIS 🌸

#include <pthread.h>

int
pthread_rwlockattr_init(pthread_rwlockattr_t *attr);

one header, one function, one pointer. clean. we love to see it ✨

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💖 DESCRIPTION 💖

The pthread_rwlockattr_init() function is used to initialize a read/write lock attributes object.

that's it. that's the whole vibe. you hand it an attributes object and it gets set up all nice and ready for you 🫶

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⭐ RETURN VALUES ⭐

If successful, the pthread_rwlockattr_init() function will return zero.

Otherwise an error number will be returned to indicate the error.

so like — zero means slay, anything else means go read the next section 😭 and reminder: it returns the error number, it does not set errno. different system, bestie, keep up 💅

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🙈 ERRORS 🙈

The pthread_rwlockattr_init() function will fail if:

• [ENOMEM] — Insufficient memory exists to initialize the attributes object. like the system literally ran out of room to even start. tragic. 💀

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🔥 SEE ALSO 🔥

• pthread_rwlock_init(3)
• pthread_rwlockattr_destroy(3)
• pthread_rwlockattr_getpshared(3)
• pthread_rwlockattr_setpshared(3)

the whole friend group honestly 🫶 go read them, they're all part of the same little rwlock-attributes storyline.

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👑 STANDARDS 👑

The pthread_rwlockattr_init() function is expected to conform to Version 2 of the Single UNIX Specification (“SUSv2”).

certified standards-compliant behaviour, no cap ✨

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🌈 HISTORY 🌈

The pthread_rwlockattr_init() function first appeared in FreeBSD 3.0.

an elder. a legend. we stan a function with lore 💜

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and that's the page, bestie 🎀 written by the Debian crew, dated August 4, 1998 — yeah, 1998, this one's been serving since before we were born 💅 go forth and initialize your attributes objects responsibly. mwah 🦋