Linux Certif

Toute la documentation sur la certification Linux LPI

sysconf

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sysconf - Æ°ºîÃæ¤ËÀßÄê¾ðÊó¤ò¼èÆÀ¤¹¤ë

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#include <unistd.h>



long sysconf(int name);

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ÊÑ¿ô¤äÀ©¸Â¤ò³Îǧ¤Ç¤­¤ë¤è¤¦¤Ë¡¢¤¿¤¤¤Æ¤¤¤Ï¡¢ <limits.h> ¤ÇÄê¿ô _FOO ¤¬¡¢ <unistd.h> ¤Ç _POSIX_FOO ¤¬ÄêµÁ¤µ¤ì¤Æ¤¤¤ë¡£ À©¸Â¤¬¤Ê¤¤¾ì¹ç¤ÏÄê¿ô¤ÏÄêµÁ¤µ¤ì¤Ê¤¤¡£ Äê¿ô¤¬ÄêµÁ¤µ¤ì¤Æ¤¤¤ë¤È¤­¤Ë¤Ï¡¢¤½¤ÎÃͤÏÊݾڤµ¤ì¤¿ÃͤǤ¢¤ê¡¢ ¼ÂºÝ¤Ë¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¤³¤È¤â¤¢¤ë¡£ ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤¬¥·¥¹¥Æ¥àËè¤ËÊѲ½¤¹¤ëÃͤòÍøÍѤ·¤¿¤¤¾ì¹ç¤Ë¤Ï¡¢ sysconf() ¤ò¸Æ¤Ó½Ð¤¹¤³¤È¤Ç¼Â¸½¤Ç¤­¤ë¡£ sysconf() ¤Î°ú¤­¿ô¤Ë¤Ï _SC_FOO ¤ò»ØÄꤹ¤ë¡£

POSIX.1 ÊÑ¿ô

ÊÑ¿ô̾¡¢¤½¤ÎÃͤò¼èÆÀ¤¹¤ë¤Î¤Ë»È¤ï¤ì¤ë sysconf() ¤Î¥Ñ¥é¥á¡¼¥¿Ì¾¡¢´Êñ¤ÊÀâÌÀ¤ò°Ê²¼¤Ë¼¨¤¹¡£

¤Þ¤º POSIX.1 ¸ß´¹¤ÎÊÑ¿ô¤ò¼¨¤¹¡£

ARG_MAX - _SC_ARG_MAX

exec(3) ´Ø¿ô·²¤Î°ú¤­¿ô¤ÎºÇÂçĹ¡£ _POSIX_ARG_MAX (4096) ̤Ëþ¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£

CHILD_MAX - _SC_CHILD_MAX

¥æ¡¼¥¶ID ¤¢¤¿¤ê¤ÎƱ»þ¤Ë¸ºß¤Ç¤­¤ë¥×¥í¥»¥¹¤ÎºÇÂç¿ô¡£ _POSIX_CHILD_MAX (25) ̤Ëþ¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£

HOST_NAME_MAX - _SC_HOST_NAME_MAX

gethostname(2) ¤ÇÊÖ¤µ¤ì¤ë¥Û¥¹¥È̾¤ÎºÇÂçĹ¡£ËöÈø¤Î NULL ¥Ð¥¤¥È¤ÏŤµ¤Ë´Þ¤Þ¤ì¤Ê¤¤¡£ _POSIX_HOST_NAME_MAX (255) ̤Ëþ¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£

LOGIN_NAME_MAX - _SC_LOGIN_NAME_MAX

¥í¥°¥¤¥ó̾¤ÎŤµ¤ÎºÇÂçÃÍ¡£ËöÈø¤Î NULL ¥Ð¥¤¥È¤âŤµ¤Ë´Þ¤Þ¤ì¤ë¡£ _POSIX_LOGIN_NAME_MAX (9) ̤Ëþ¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£

clock ticks - _SC_CLK_TCK

1É䢤¿¤ê¤Î¥¯¥í¥Ã¥¯¡¦¥Æ¥£¥Ã¥¯¿ô¡£ Âбþ¤¹¤ëÊÑ¿ô¤ÏÇѻߤµ¤ì¤¿¡£¤³¤ÎÊÑ¿ô¤ÏÅöÁ³¤Ê¤¬¤é CLK_TCK ¤È¸Æ¤Ð¤ì¤Æ¤¤¤¿¡£ (Ãí°Õ: ¥Þ¥¯¥í CLOCKS_PER_SEC ¤«¤é¤Ï¾ðÊó¤ÏÆÀ¤é¤ì¤Ê¤¤: ¤³¤ÎÃÍ¤Ï 1000000 ¤Ç¤Ê¤±¤ì¤Ð¤Ê¤é¤Ê¤¤)

OPEN_MAX - _SC_OPEN_MAX

°ì¤Ä¤Î¥×¥í¥»¥¹¤¬Æ±»þ¤Ë¥ª¡¼¥×¥ó¤Ç¤­¤ë¥Õ¥¡¥¤¥ë¿ô¤Î¾å¸Â¡£ _POSIX_OPEN_MAX (20) ̤Ëþ¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£

PAGESIZE - _SC_PAGESIZE

¥Ð¥¤¥Èñ°Ì¤Ç¤Î¥Ú¡¼¥¸¥µ¥¤¥º¡£ 1 ¤è¤ê¾®¤µ¤¯¤Ê¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£ (¤³¤ÎÂå¤ï¤ê¤Ë PAGE_SIZE ¤ò»È¤¦¥·¥¹¥Æ¥à¤â¤¢¤ë)

RE_DUP_MAX - _SC_RE_DUP_MAX

regexec(3) ¤È regcomp(3) ¤ÇµöÍƤµ¤ì¤Æ¤¤¤ë BRE (Basic Regular Expression; ´ðËÜÀµµ¬É½¸½) ¤Î·«¤êÊÖ¤·½Ð¸½²ó¿ô¤ÎºÇÂçÃÍ¡£ _POSIX2_RE_DUP_MAX (255) ̤Ëþ¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£

STREAM_MAX - _SC_STREAM_MAX

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SYMLOOP_MAX

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TTY_NAME_MAX - _SC_TTY_NAME_MAX

üËö¥Ç¥Ð¥¤¥¹Ì¾¤ÎºÇÂçĹ¡£Ä¹¤µ¤Ë¤ÏËöÈø¤Î NULL ¥Ð¥¤¥È¤â´Þ¤Þ¤ì¤ë¡£ _POSIX_TTY_NAME_MAX (9) ̤Ëþ¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£

TZNAME_MAX - _SC_TZNAME_MAX

¥¿¥¤¥à¥¾¡¼¥ó̾¤È¤·¤Æ»È¤¨¤ë¥Ð¥¤¥È¿ô¤ÎºÇÂçÃÍ¡£ _POSIX_TZNAME_MAX (6) ̤Ëþ¤Ç¤¢¤Ã¤Æ¤Ï¤Ê¤é¤Ê¤¤¡£

_POSIX_VERSION - _SC_VERSION

POSIX.1 ɸ½à¤¬¾µÇ§¤µ¤ì¤¿Ç¯·î¡£ YYYYMML ¤È¤¤¤¦½ñ¼°¤Ç¤¢¤ë¡£ 199009L ¤È¤¤¤¦Ãͤϡ¢1990ǯ 9·î ²þÄû¤Ç¤¢¤ë¤³¤È¤ò¼¨¤¹¡£

POSIX.2 ÊÑ¿ô

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BC_BASE_MAX - _SC_BC_BASE_MAX

bc(1) ¥æ¡¼¥Æ¥£¥ê¥Æ¥£¤ÇµöÍƤµ¤ì¤ë obase ¤ÎºÇÂçÃÍ¡£

BC_DIM_MAX - _SC_BC_DIM_MAX

bc(1) ¤ÇµöÍƤµ¤ì¤ë°ì¤Ä¤ÎÇÛÎóÃæ¤ÎÍ×ÁÇ¿ô¤ÎºÇÂçÃÍ¡£

BC_SCALE_MAX - _SC_BC_SCALE_MAX

bc(1) ¤Çµö¤µ¤ì¤ë scale ¤ÎºÇÂçÃÍ¡£

BC_STRING_MAX - _SC_BC_STRING_MAX

bc(1) ¤ÇµöÍƤµ¤ì¤ëʸ»úÎó¤ÎºÇÂçĹ¡£

COLL_WEIGHTS_MAX - _SC_COLL_WEIGHTS_MAX

¥í¥±¡¼¥ëÄêµÁ¥Õ¥¡¥¤¥ëÃæ¤Î LC_COLLATE order ¥­¡¼¥ï¡¼¥É¤Î¥¨¥ó¥È¥ê¤Ë³ä¤êÅö¤Æ²Äǽ¤Ê½Å¤ß¤ÎºÇÂçÃÍ¡£

EXPR_NEST_MAX - _SC_EXPR_NEST_MAX

expr(1) ¤Ë¤ª¤¤¤Æ¡¢³ç¸Ì¤ÇÆþ¤ì»Ò¤Ë¤Ç¤­¤ë¼°¤ÎºÇÂç¿ô¡£

LINE_MAX - _SC_LINE_MAX

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RE_DUP_MAX - _SC_RE_DUP_MAX

Àµµ¬É½¸½¤Ç¶è´Öɽµ­ (interval notation) \{m,n\} ¤¬»ÈÍѤµ¤ì¤¿¤È¤­¤ËµöÍƤµ¤ì¤ë·«¤êÊÖ¤·½Ð¸½²ó¿ô¤ÎºÇÂçÃÍ¡£

POSIX2_VERSION - _SC_2_VERSION

POSIX.2 ɸ½à¤Î¥Ð¡¼¥¸¥ç¥ó¡£YYYYMML ¤È¤¤¤¦½ñ¼°¤Çɽµ­¤µ¤ì¤ë¡£

POSIX2_C_DEV - _SC_2_C_DEV

POSIX.2 ¤Î C ¸À¸ì³«È¯µ¡Ç½¤¬¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¤«¤ò¼¨¤¹¡£

POSIX2_FORT_DEV - _SC_2_FORT_DEV

POSIX.2 ¤Î FORTRAN ³«È¯¥æ¡¼¥Æ¥£¥ê¥Æ¥£¤¬¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¤«¤ò¼¨¤¹¡£

POSIX2_FORT_RUN - _SC_2_FORT_RUN

POSIX.2 ¤Î FORTRAN ¥é¥ó¥¿¥¤¥à¥æ¡¼¥Æ¥£¥ê¥Æ¥£¤¬¥µ¥Ý¡¼¥È¤µ¤ì¤Æ¤¤¤ë¤«¤ò¼¨¤¹¡£

_POSIX2_LOCALEDEF - _SC_2_LOCALEDEF

localedef(1) ¤ò»È¤Ã¤¿¡¢POSIX.2 ¤Î¥í¥±¡¼¥ë¤ÎºîÀ®¤ò¥µ¥Ý¡¼¥È¤·¤Æ¤¤¤ë¤«¤ò¼¨¤¹¡£

POSIX2_SW_DEV - _SC_2_SW_DEV

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°Ê²¼¤ÎÃͤ⸺ߤ¹¤ë¤¬¡¢É¸½à¤Ë¤Ï´Þ¤Þ¤ì¤Æ¤¤¤Ê¤¤¡£

- _SC_PHYS_PAGES

ʪÍý¥á¥â¥ê¤Î¥Ú¡¼¥¸¿ô¡£ ¤³¤ÎÃÍ¤È _SC_PAGE_SIZE ÃͤÎÀѤϷå°î¤ì¤¹¤ë²ÄǽÀ­¤¬¤¢¤ë¤Î¤ÇÃí°Õ¤¹¤ë¤³¤È¡£

- _SC_AVPHYS_PAGES

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ÊÖ¤êÃÍ

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POSIX.1-2001.

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bc(1), expr(1), getconf(1), locale(1), fpathconf(3), pathconf(3), posixoptions(7)