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sched_get_priority_max, sched_get_priority_min, sched_rr_get_interval — ???????塼???ѥ??᡼???ξ??? / ???¤?????????

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Standard C Library (libc, -lc)

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<sched.h> int sched_get_priority_max(int policy) int sched_get_priority_min(int policy) int sched_rr_get_interval(pid_t pid, struct timespec *interval)

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sched_get_priority_max() ?????ƥॳ?????? sched_get_priority_min() ?????ƥॳ?????ϡ? policy ?ǻ??ꤵ?줿???????塼?????????ˤˤĤ??ơ? ???줾?쳺???????????ȺǾ????֤??ޤ??? sched_rr_get_interval() ?????ƥॳ?????ϡ? interval ?????ˤ??äƻ??Ȥ????? timespec ??¤?Τ??? pid ?ǻ??ꤵ?????ץ??????ˤĤ??? ???ߤμ¹Ի??????? (???ʤ???????????) ???ޤޤ????褦?˹??????ޤ??? pid ?? 0 ?ξ??硢?ƤӽФ????ץ??????˴ؤ??븽?ߤμ¹Ի??????¤??֤????ޤ???

policy ???ͤ? <sched.h> ?????????줿???????塼?????ˤ? 1 ?Ĥˤ???ɬ?פ??????ޤ?:

[SCHED_FIFO]

?饦???ɥ??ӥ󥹥????塼???ʤ??????????? (FIFO) ????ͥ?????̥??????塼?롣

[SCHED_OTHER]

ɸ???Υ????ॷ???????󥰥??????塼?顣

[SCHED_RR]

Ʊ??ͥ?????̤Υץ??????֤ǤΥ饦???ɥ??ӥ󥹥????塼???󥰡?

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sched_get_priority_max() ?????ƥॳ?????? sched_get_priority_min() ?????ƥॳ?????ϡ??????˴?λ?????Ȥ??줾?쳺???????????ͤޤ??ϺǾ??ͤ??֤??ޤ??? ?????Ǥʤ????硢?ɤ????δؿ??? -1 ???֤??졢???顼?򼨤??????? errno ?????ꤵ???ޤ???

The sched_rr_get_interval() function returns the value 0 if successful; otherwise the value -1 is returned and the global variable errno is set to indicate the error.

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?????????Ԥ????ȡ? errno ???б??????ͤ????ꤵ???ޤ?:

[EINVAL]

policy ???????ͤ??????????Ƥ??륹?????塼?????ˤǤϤ????ޤ?????

[ENOSYS]

sched_get_priority_max() ?????ƥॳ???롢 sched_get_priority_min() ?????ƥॳ???롢?????? sched_rr_get_interval() ?????ƥॳ?????ϡ????μ????Ǥϥ??ݡ??Ȥ????Ƥ??ޤ?????

[ESRCH]

pid ?ǻ??ꤵ?????ץ????????б??????ץ??????????Ĥ????ޤ?????

??Ϣ????

sched_getparam(2), sched_getscheduler(2), sched_setparam(2), sched_setscheduler(2)

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sched_get_priority_max() ?????ƥॳ???롢 sched_get_priority_min() ?????ƥॳ???롢???줫?? sched_rr_get_interval() ?????ƥॳ?????? IEEE Std 1003.1b-1993 (“POSIX.1b”) ??Ŭ?礷?Ƥ??ޤ???