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GETDTABLESIZE

Section: Linux Programmer's Manual (2)
Updated: 22 July 1993
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getdtablesize - ¥Ç¥£¥¹¥¯¥ê¥×¥¿¡¼¡¦¥Æ¡¼¥Ö¥ë¤Î¥µ¥¤¥º¤ò¼èÆÀ¤¹¤ë

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#include <unistd.h>

int getdtablesize(void);

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getdtablesize ¤Ï¥×¥í¥»¥¹¤Î¥ª¡¼¥×¥ó(open)¤¹¤ë¤³¤È¤¬¤Ç¤¤ë¥Õ¥¡¥¤¥ë¤ÎºÇÂç¿ô¤òÊÖ¤¹¡£

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getdtablesize ¤Ï DLL 4.4.1 ¤Î¥é¥¤¥Ö¥é¥ê´Ø¿ô¤È¤·¤Æ¼ÂÁõ¤µ¤ì¤Æ¤¤¤ë¡£¤³¤Î´Ø¿ô¤Ï ¥é¥¤¥Ö¥é¥ê¤ò¥³¥ó¥Ñ¥¤¥ë¤¹¤ë»þ¤Ë OPEN_MAX (Linux 2.0.23 ¤Ç¤Ï 256 ¤ËÀßÄê¤µ¤ì¤Æ¤¤¤ë)¤¬ÄêµÁ¤µ¤ì¤Æ¤¤¤ì¤Ð ¤½¤ÎÃÍ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤ì¤Ð -1 ¤òÊÖ¤·¤Æ¡¢ errno ¤Ë ENOSYS ¤òÀßÄê¤¹¤ë¡£

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SVr4, 4.4BSD ( getdtablesize ´Ø¿ô¤Ï BSD 4.2 ¤ÇºÇ½é¤Ë¸½¤ï¤ì¤¿).

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close(2), dup(2), open(2)

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