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usleep — ?ץ??????μ¹Ԥ??ޥ??????ä?¬?ä????֤???????

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Standard C Library (libc, -lc)

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<unistd.h> int usleep(unsigned int microseconds)

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usleep() ?ؿ??ϡ? microseconds ?ޥ??????÷в᤹?뤫???ޤ??ϥץ??????? ???椬???夷?Ƥ???ư???????????ǽ???ƤӽФ????ΤǤ??뤫?ޤ??ϥץ??????? ??λ???????ΤǤ????ޤǡ??ƤӽФ??ץ??????μ¹Ԥ????Ǥ??ޤ????????ƥ??? ??ư???֤ˤ??äƤϡ????꡼?׻??֤??Գ????λ??֤???Ĺ???ʤ??ޤ???

???δؿ??ϡ? microseconds ?ޥ??????ä??????ޤ??Ͽ??椬?????ޤǥݡ??? ???? nanosleep(2) ???Ȥ??¹Ԥ????ޤ??????η??̡????Υ????ץ??????ơ??????? ?Ǥϥ??꡼?פϥץ??????????ޤξ??֤ˤϱƶ???Ϳ?????? SIGALRM ?ˤĤ??????̤ʼ谷???ϹԤ??ޤ?????

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The usleep() 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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usleep() ?ؿ??ϡ????Τ褦?ʾ????ˤϼ??Ԥ??ޤ???

[EINTR]

???椬?ץ??????????夷??????ư???Ͽ?????????ǽ???ƤӽФ????ΤǤ?????

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nanosleep(2), sleep(3)

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usleep() ?ؿ??ϡ? 4.3BSD ???о줷?ޤ?????