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rtprio — ?桼?ƥ????ƥ????ץ??????Υꥢ?륿???? / ?????ɥ?ͥ?????̤μ????Ƚ???

?饤?֥???

Standard C Library (libc, -lc)

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<sys/types.h> <sys/rtprio.h> int rtprio(int function, pid_t pid, struct rtprio *rtp)

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rtprio() ?????ƥॳ?????????Ѥ??ơ??ץ??????Υꥢ?륿?????ޤ??ϥ????ɥ?ͥ?????̤? ?????ޤ????ѹ????ޤ???

function ?????Ǽ¹Ԥ????????????ꤷ?ޤ??? ???ߤ?ͥ?????̤??????????ˤ? RTP_LOOKUP??ͥ?????̤????ꤹ???ˤ? RTP_SET ?Ǥ??? pid ?????ϡ??оݤΥץ??????????ꤷ?ޤ??? ???ߤΥץ??????????ꤹ???ˤ? 0 ???Ȥ??ޤ???

*rtp ?????ϡ?ͥ?????̤?ͥ?????̤Υ????פ????ꤹ???Τ˻??Ѥ??? struct rtprio ???ؤ? ?ݥ??󥿤Ǥ??? ???ι?¤?Τϼ??η??Ǥ?:

struct rtprio {
	u_short	type;
	u_short prio;
};

type ???ͤϡ??ꥢ?륿????ͥ?????̤ˤĤ??Ƥ? RTP_PRIO_REALTIME?? ?̾???ͥ?????̤ˤĤ??Ƥ? RTP_PRIO_NORMAL?? ?????ɥ?ͥ?????̤ˤĤ??Ƥ? RTP_PRIO_IDLE ?Ǥ??? prio ?ˤ??äƻ??ꤹ??ͥ?????̤ϡ?0 ???? RTP_PRIO_MAX (?̾??? 31) ???ϰϤˤʤ??ޤ??? 0 ????????ǽ?ʺǹ???ͥ?????̤Ǥ???

?ꥢ?륿????ͥ?????̤ȥ????ɥ?ͥ?????̤ϡ? fork() ?? exec() ???̤??ƷѾ??????ޤ???

?ꥢ?륿?????ץ??????ϡ??????ʾ???ͥ?????̤????ĥץ??????? ?ޤ??ϳ??????ߤˤ??äƤ???ͥ?踢???????Ǥ??ޤ??? ?????ɥ?ͥ?????̤Υץ??????ϡ? ¾?Υꥢ?륿?????ޤ????̾???ͥ?????̥ץ??????? ?¹Բ?ǽ?Ǥʤ??Ȥ??ˤ????¹Ԥ????ޤ??? ͥ?????̤ι⤤?ꥢ?? / ?????ɥ??Υץ??????? ͥ?????̤??㤤?ꥢ?? / ?????ɥ??Υץ?????????ͥ?踢?????????ޤ??? ͥ?????̤????????ꥢ?? / ?????ɥ??? ?ץ??????ϥ饦???ɥ??ӥ??????Ǽ¹Ԥ????ޤ???

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The rtprio() 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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rtprio() ?????ƥॳ?????ϼ??ξ????˽????????Ԥ??ޤ?:

[EINVAL]

???ꤵ?줿 prio ???ϰϳ??Ǥ?????

[EPERM]

?ƤӽФ??ץ????????ꥢ?륿????ͥ?????̤??????Ǥ??ޤ????? root ??????Ǥ?դΥץ??????Υꥢ??ͥ?????̤??ѹ????뤳?Ȥ??Ǥ??ޤ??? root ?Ǥʤ??桼???ϸ??ߤΥץ??????Υ????ɥ?ͥ?????̤??ѹ??Ǥ????????Ǥ???

[ESRCH]

?????Υץ??????????Ĥ????ޤ????Ǥ?????

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???ꥸ?ʥ??κ??Ԥ? Henrik Vestergaard Draboel ⟨hvd@terry.ping.dk⟩ ?Ǥ??? FreeBSD ?Ǥμ????? David Greenman ?ˤ??ä??ܼ?Ū?˽???ľ?????ޤ?????

??Ϣ????

nice(1), ps(1), rtprio(1), setpriority(2), nice(3), renice(8)