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tcgetpgrp

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#include <unistd.h>

pid_t tcgetpgrp(int fd);

int tcsetpgrp(int fd, pid_t pgrp);

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tcsetpgrp() ¤¬¥»¥Ã¥·¥ç¥ó¤Ë°¤¹¤ë¥Ð¥Ã¥¯¥°¥é¥¦¥ó¥É¡¦¥°¥ë¡¼¥×¡¦¥×¥í¥»¥¹¤Î¥á¥ó¥Ð¤«¤é ¸Æ¤Ó½Ð¤µ¤ì¡¢¤«¤Ä¸Æ¤Ó½Ð¤·¤ò¹Ô¤¦¥×¥í¥»¥¹¤¬ SIGTTOU ¤ò¥Ö¥í¥Ã¥¯¤·¤¿¤ê ̵»ë¤·¤¿¤ê¤¹¤ë¤è¤¦¤Ë¤Ê¤Ã¤Æ¤¤¤Ê¤¤¾ì¹ç¡¢ SIGTTOU ¥·¥°¥Ê¥ë¤Ï ¥Ð¥Ã¥¯¥°¥é¥¦¥ó¥É¡¦¥×¥í¥»¥¹¡¦¥°¥ë¡¼¥×¤ÎÁ´¤Æ¤Î¥á¥ó¥Ð¤ËÁ÷¤é¤ì¤ë¡£

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fd ¤¬¸Æ¤Ó½Ð¤·¤ò¹Ô¤Ã¤¿¥×¥í¥»¥¹¤ÎÀ©¸æüËö¤ò»²¾È¤·¤Æ¤¤¤ë¾ì¹ç¡¢´Ø¿ô tcgetpgrp() ¤Ï¡¢¤½¤ÎÀ©¸æüËö¤Î¥Õ¥©¥¢¥°¥é¥¦¥ó¥É¡¦¥×¥í¥»¥¹¡¦¥°¥ë¡¼¥×¤¬¤¢¤ì¤Ð ¤½¤Î¥×¥í¥»¥¹¡¦¥°¥ë¡¼¥×¤Î ID ¤òÊÖ¤¹¡£ ¤½¤Î¤è¤¦¤Ê¥×¥í¥»¥¹¡¦¥°¥ë¡¼¥×¤¬¤Ê¤±¤ì¤Ð¡¢¸½ºß¥×¥í¥»¥¹¡¦¥°¥ë¡¼¥× ID ¤È¤·¤Æ»ÈÍѤµ¤ì¤Æ¤¤¤Ê¤¤¡¢1¤è¤êÂ礭¤Ê²¿¤é¤«¤ÎÃͤ¬ÊÖ¤µ¤ì¤ë¡£ fd ¤¬¸Æ¤Ó½Ð¤·¤ò¹Ô¤Ã¤¿¥×¥í¥»¥¹¤ÎÀ©¸æüËö¤ò»²¾È¤·¤Æ¤¤¤Ê¤¤¾ì¹ç¡¢ -1 ¤¬ÊÖ¤µ¤ì¡¢ errno ¤¬Å¬ÀÚ¤ËÀßÄꤵ¤ì¤ë¡£

À®¸ù¤·¤¿¾ì¹ç¡¢ tcsetpgrp() ¤Ï 0 ¤òÊÖ¤¹¡£¤½¤¦¤Ç¤Ê¤¤¾ì¹ç¡¢ -1 ¤òÊÖ¤·¡¢ errno ¤òŬÀÚ¤ËÀßÄꤹ¤ë¡£

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EBADF

fd ¤ÏÍ­¸ú¤Ê¥Õ¥¡¥¤¥ëµ­½Ò»Ò¤Ç¤Ê¤¤¡£

EINVAL

pgrp ¤¬Ìµ¸ú¤ÊÃͤǤ¢¤ë¡£

ENOTTY

¸Æ¤Ó½Ð¤·¤ò¹Ô¤Ã¤¿¥×¥í¥»¥¹¤¬À©¸æüËö¤ò»ý¤Ã¤Æ¤¤¤Ê¤¤¡¢¤â¤·¤¯¤Ï À©¸æüËö¤ò»ý¤Ã¤Æ¤¤¤ë¤¬ fd ¤Ç»²¾È¤µ¤ì¤ë¤â¤Î¤È¤Ï°Û¤Ê¤ë¡¢ tcsetpgrp() ¤Î¾ì¹ç¤Ï¡¢ fd ¤Ç»ØÄꤵ¤ì¤¿À©¸æüËö¤¬¤¹¤Ç¤Ë¸Æ¤Ó½Ð¤·¤ò¹Ô¤Ã¤¿¥×¥í¥»¥¹¤Î¥»¥Ã¥·¥ç¥ó ¤È´Ø·¸¤Î¤Ê¤¤¤â¤Î¤Ë¤Ê¤Ã¤Æ¤¤¤ëºÝ¤Ë¤â¡¢¤³¤Î¥¨¥é¡¼¤È¤Ê¤ë¡£

EPERM

pgrp ¤¬Í­¸ú¤ÊÃͤÀ¤¬¡¢¸Æ¤Ó½Ð¤·¤ò¹Ô¤Ã¤¿¥×¥í¥»¥¹¤ÈƱ¤¸¥»¥Ã¥·¥ç¥ó¤Ë°¤¹¤ë ¥×¥í¥»¥¹¤Î¥×¥í¥»¥¹¡¦¥°¥ë¡¼¥× ID ¤Ë¤Ï³ºÅö¤¹¤ë¤â¤Î¤¬¤Ê¤¤¡£

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POSIX.1-2001.

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¤³¤Î´Ø¿ô¤Ï TIOCGPGRP ¤È TIOCGSID ¤Î ioctl ·Ðͳ¤Ç¼Â¸½¤µ¤ì¤Æ¤¤¤ë¡£

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¤³¤ì¤é¤Î ioctl ¤Ï 4.2BSD ¤ÇÅо줷¤¿¡£ ¤³¤ì¤é¤Î´Ø¿ô¤Ï POSIX ¤Ç¹Í°Æ¤µ¤ì¤¿¤â¤Î¤Ç¤¢¤ë¡£

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setpgid(2), setsid(2)