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pthread_rwlock_wrlock, pthread_rwlock_trywrlock — ???????Ѥ??ɼ??? / ?????ߥ??å??γ???

?饤?֥???

Reentrant C Library (libc_r, -lc_r)

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<pthread.h> int pthread_rwlock_wrlock(pthread_rwlock_t *lock) int pthread_rwlock_trywrlock(pthread_rwlock_t *lock)

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pthread_rwlock_wrlock() ?ؿ??ϡ? lock ???Ф??ƽ??????ѤΥ??å????????Ǥ????ޤǡ??֥??å????ޤ??? pthread_rwlock_trywrlock() ?ؿ??ϡ?Ʊ?????????¹Ԥ??ޤ??????????˥??å????????Ǥ??ʤ??????ˤϡ? ?֥??å????ޤ?????

?ƤӽФ??Ƥ??륹???åɤ????ƤӽФ????Ԥʤ??줿?Τ?Ʊ???˴??ˤ??Υ??å??? ?ݻ????Ƥ????????ˤϡ????η??̤?̤?????Ǥ???

?????˴ؤ?????

??????¦?ε??????֤??ɤ????ᡢ??????¦???ɹ???¦??????ͥ?褵???ޤ???

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???꤬?ʤ??????ϡ? pthread_rwlock_wrlock() ?????? pthread_rwlock_trywrlock() ?ؿ??? 0 ???֤??ޤ??? ???꤬?????????ϡ????Υ??顼?򼨤??????˥??顼?ֹ椬?֤????ޤ???

??Ϣ????

pthread_rwlock_trywrlock(3), pthread_rwlock_unlock(3), pthread_rwlock_wrlock(3)

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pthread_rwlock_wrlock() ?????? pthread_rwlock_trywrlock() ?ؿ??ϡ? Version 2 of the Single UNIX Specification (“SUSv2”) ??Ŭ?礷?Ƥ????Ϥ??Ǥ???

???顼

pthread_rwlock_trywrlock() ?ؿ??ϡ??ʲ??ξ????˼??Ԥ??ޤ???

[EBUSY]

?ƤӽФ??Ƥ??륹???åɤ??֥??å?̵???ǥ??å????????Ǥ??ޤ?????

pthread_rwlock_wrlock() ?????? pthread_rwlock_trywrlock() ?ؿ??ϡ??ʲ??ξ????˼??Ԥ??뤳?Ȥ??????ޤ???

[EDEADLK]

?ƤӽФ??Ƥ??륹???åɤ????ˤ????ɼ??? / ?????ߥ??å??? (?ɼ????Ѥޤ??? ???????Ѥ?) ??ͭ???Ƥ??ޤ???

[EINVAL]

lock ?ˤ??äƻ??ꤵ?줿?ͤ?̵???Ǥ???

[ENOMEM]

???å? (??Ū?˽????????줿???å??Τߤ?Ŭ??) ?ν??????Τ????? ??ʬ?ʥ????꤬?????ޤ???

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pthread_rwlock_wrlock() ?ؿ??ϡ? FreeBSD 3.0 ?ǤϤ??????о줷?ޤ?????