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Version: 2001-12-13 (openSuse - 09/10/07)

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Section: 2 (Appels système)

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close - ¥Õ¥¡¥¤¥ë¡¦¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤ò¥¯¥í¡¼¥º¤¹¤ë

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#include <unistd.h>



int close(int fd);

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close() ¤Ï¥Õ¥¡¥¤¥ë¡¦¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼ (descriptor) ¤ò¥¯¥í¡¼¥º¤¹¤ë¡£ ¤½¤Î¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤Ï¡¢¤É¤Î¥Õ¥¡¥¤¥ë¤â»²¾È¤·¤Æ¤¤¤Ê¤¤¾õÂ֤ˤʤꡢ ºÆ»ÈÍѤ¬²Äǽ¤Ë¤Ê¤ë¡£ ¤½¤Î¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤Ë´ØÏ¢¤Å¤±¤é¤ì¤¿¥Õ¥¡¥¤¥ë¤Ë ¤«¤±¤é¤ì¤¿¥ì¥³¡¼¥É¡¦¥í¥Ã¥¯ (fcntl(2) »²¾È) ¤Î¤¦¤Á¡¢¤½¤Î¥×¥í¥»¥¹¤¬ÊÝÍ­¤·¤Æ¤¤¤ë¤â¤Î¤Ï¡¢ (¤½¤Î¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤¬¥í¥Ã¥¯¼èÆÀ¤ËÍøÍѤµ¤ì¤¿¤« ¤É¤¦¤«¤Ë¤è¤é¤º) ¤¹¤Ù¤Æºï½ü¤µ¤ì¤ë¡£

fd ¤¬¤½¤Î¥Õ¥¡¥¤¥ë¡¦¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤ÎºÇ¸å¤Î¥³¥Ô¡¼¤À¤Ã¤¿¾ì¹ç¤Ë¤Ï¡¢ ¤½¤Î¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤Ë´ØÏ¢¤·¤¿¥ê¥½¡¼¥¹¤Ï²òÊü¤µ¤ì¤ë¡£ ¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤¬ unlink ¤ò»ÈÍѤ·¤Æºï½ü (remove) ¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¤ËÂФ¹¤ëºÇ¸å¤Î»²¾È¤À¤Ã¤¿¾ì¹ç¤Ë¤Ï¡¢ ¤½¤Î¥Õ¥¡¥¤¥ë¤Ï½üµî (delete) ¤µ¤ì¤ë¡£

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close() ¤ÏÀ®¸ù¤·¤¿¾ì¹ç¤Ï 0 ¤òÊÖ¤¹¡£ ¥¨¥é¡¼¤¬È¯À¸¤·¤¿¾ì¹ç¤Ï -1 ¤òÊÖ¤·¤Æ¡¢ errno ¤òŬÀÚ¤ËÀßÄꤹ¤ë¡£

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EBADF
fd ¤¬Í­¸ú¤Ê¥ª¡¼¥×¥ó¤µ¤ì¤¿¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¤Ç¤Ê¤¤¡£
EINTR
close() ¥³¡¼¥ë¤¬¥·¥°¥Ê¥ë¤Ë¤è¤êÃæÃÇ (interrupt) ¤µ¤ì¤¿¡£
EIO
I/O ¥¨¥é¡¼¤¬È¯À¸¤·¤¿¡£

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SVr4, 4.3BSD, POSIX.1-2001.

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close() ¤ÎÊÖ¤êÃͤΥÁ¥§¥Ã¥¯¤Ï¤è¤¯¾Êά¤µ¤ì¤ë¤¬¡¢ ¤³¤ì¤Ï¿¼¹ï¤Ê¥×¥í¥°¥é¥ß¥ó¥°¥¨¥é¡¼¤Ç¤¢¤ë¡£ Á°¤Î write(2) ½èÍý¤¬ºÇ¸å¤Î close() ¤Î¤È¤­¤Ë¤Ê¤Ã¤Æ½é¤á¤ÆÄÌÃΤµ¤ì¤ë¾ì¹ç¤Ë¡¢¥¨¥é¡¼¤¬µ¯¤­¤ë²ÄǽÀ­¤¬¹â¤¤¡£ ¥Õ¥¡¥¤¥ë¥¯¥í¡¼¥º¤ÎºÝ¤ËÊÖ¤êÃͤò¥Á¥§¥Ã¥¯¤·¤Ê¤¤¤È¡¢ µ¤ÉÕ¤«¤Ê¤¤¤¦¤Á¤Ë¥Ç¡¼¥¿¤ò¼º¤Ã¤Æ¤·¤Þ¤¦¤«¤â¤·¤ì¤Ê¤¤¡£ ¤³¤ì¤ÏÆÃ¤Ë NFS ¤ä¥Ç¥£¥¹¥¯¡¦¥¯¥©¡¼¥¿¤ò»ÈÍѤ·¤¿¾ì¹ç¤Ë¸«¤é¤ì¤ë¡£

¥¯¥í¡¼¥º¤ËÀ®¸ù¤·¤Æ¤â¡¢¥Ç¡¼¥¿¤¬¥Ç¥£¥¹¥¯¤ËÊݸ¤µ¤ì¤¿¤«¤É¤¦¤«¤Ï Êݾڤµ¤ì¤Ê¤¤ (¥«¡¼¥Í¥ë¤¬½ñ¤­¤³¤ß¤òÃٱ䤵¤»¤ë¤³¤È¤¬¤¢¤ë¤Î¤Ç)¡£ ¥¹¥È¥ê¡¼¥à¤¬¥¯¥í¡¼¥º¤µ¤ì¤ë¤È¤­¤Ë¥Ð¥Ã¥Õ¥¡¤ò¥Õ¥é¥Ã¥·¥å¤¹¤ë¤«¤É¤¦¤«¤Ï¡¢ ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Ë¤è¤Ã¤Æ°Û¤Ê¤ë¡£ ¥Ç¡¼¥¿¤¬ÊªÍýŪ¤ËÊݸ¤µ¤ì¤ë¤³¤È¤ò³Î¤«¤Ë¤¹¤ëɬÍפ¬¤¢¤ë¾ì¹ç¤Ë¤Ï¡¢ fsync(2) ¤ò»ÈÍѤ¹¤ë¤³¤È (¤³¤Î»þÅÀ¤Ç¤Ï¥Ç¥£¥¹¥¯¤Î¥Ï¡¼¥É¥¦¥§¥¢¤Ë°Í¸¤¹¤ë)¡£

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fcntl(2), fsync(2), open(2), shutdown(2), unlink(2), fclose(3)