io_cancel

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Langue: ja

Version: 2003-02-21 (openSuse - 09/10/07)

Section: 2 (Appels système)

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io_cancel - ̤½èÍý¤ÎÈóƱ´ü I/O Áàºî¤Î¼è¤ê¾Ã¤·

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#include <libaio.h>



int io_cancel(aio_context_t ctx_id, struct iocb *iocb,

              struct io_event *result);

ÀâÌÀ

io_cancel() ¤Ï¡¢²áµî¤Ë io_submit(2) ¤ò»È¤Ã¤ÆÅÐÏ¿¤µ¤ì¤¿ÈóƱ´ü I/O (AIO) Áàºî¤Î¼è¤ê¾Ã¤·¤ò¹Ô¤ª¤¦¤È¤¹¤ë¡£ ctx_id ¤Ï¡¢¼è¤ê¾Ã¤·¤ò¹Ô¤¦Áàºî¤Î AIO ¥³¥ó¥Æ¥­¥¹¥È¤Î ID ¤Ç¤¢¤ë¡£ »ØÄꤷ¤¿ AIO ¥³¥ó¥Æ¥­¥¹¥È¤¬¸«¤Ä¤«¤ë¤È¡¢ ÂоݤΥ¤¥Ù¥ó¥È¤Î¼è¤ê¾Ã¤·¤¬¹Ô¤ï¤ì¡¢¤½¤Î¸å result ¤Ç»Ø¤µ¤ì¤¿¥á¥â¥ê¤Ë ¥³¥Ô¡¼¤µ¤ì¤ë (¤³¤Î¤È¤­¡¢´°Î»¥­¥å¡¼¤Ø¤Î°ÜÆ°¤Ï¹Ô¤ï¤ì¤Ê¤¤)¡£

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À®¸ù¤·¤¿¾ì¹ç¡¢ io_cancel() ¤Ï 0 ¤òÊÖ¤¹¡£ ¼ºÇÔ¤·¤¿¾ì¹ç¡¢¡Ö¥¨¥é¡¼¡×¤ÎÀá¤Ë¥ê¥¹¥È¥¢¥Ã¥×¤µ¤ì¤Æ¤¤¤ë¥¨¥é¡¼¤Î¤¤¤º¤ì¤« °ì¤Ä¤òÊÖ¤¹¡£

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EINVAL
ctx_id ¤Ç»ØÄꤵ¤ì¤¿ AIO ¥³¥ó¥Æ¥­¥¹¥È¤¬Ìµ¸ú¤Ç¤¢¤ë¡£
EFAULT
¥Ç¡¼¥¿¹½Â¤¤ÎÃæ¤Ë̵¸ú¤Ê¥Ç¡¼¥¿¤ò»Ø¤·¤Æ¤¤¤ë¤â¤Î¤¬¤¢¤ë¡£
EAGAIN
»ØÄꤵ¤ì¤¿ iocb ¤Î¼è¤ê¾Ã¤·¤¬¹Ô¤ï¤ì¤Ê¤«¤Ã¤¿¡£
ENOSYS
io_cancel() ¤Ï¤³¤Î¥¢¡¼¥­¥Æ¥¯¥Á¥ã¤Ç¤Ï¼ÂÁõ¤µ¤ì¤Æ¤¤¤Ê¤¤¡£

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ÈóƱ´ü I/O ¥·¥¹¥Æ¥à¡¦¥³¡¼¥ë¤Ï 2002ǯ8·î¤Ë Linux 2.5 ¤Ç½é¤á¤ÆÅо줷¤¿¡£

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io_cancel() ¤Ï Linux ¸ÇÍ­¤Ç¤¢¤ê¡¢°Ü¿¢¤òÁÛÄꤷ¤¿¥×¥í¥°¥é¥à¤Ç»ÈÍѤ¹¤Ù¤­¤Ç¤Ï¤Ê¤¤¡£

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io_setup(2), io_destroy(2), io_getevents(2), io_submit(2)