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sigwaitinfo

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#include <signal.h>
int sigwaitinfo(const sigset_t *set, siginfo_t *info);
int sigtimedwait(const sigset_t *set, siginfo_t *info, 
                 const struct timespec *timeout);

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sigtimedwait() ¤Ï¡¢ sigwaitinfo() ¤È¼¡¤ÎÅÀ¤ò½ü¤¤¤ÆÁ´¤¯Æ±¤¸¤è¤¦¤ËÆ°ºî¤¹¤ë¡£ ¤³¤Î´Ø¿ô¤Ë¤Ï¤â¤¦ 1 ¤Ä¤Î°ú¤­¿ô timeout ¤¬¤¢¤ê¡¢¥×¥í¥»¥¹¤¬°ì»þÄä»ß¤¹¤ë»þ´Ö¤Î¾å¸Â¤òÄê¤á¤ë¤³¤È¤¬¤Ç¤­¤ë¡£ ¤³¤Î°ú¤­¿ô¤Î·¿¤Ï°Ê²¼¤Î¤È¤ª¤ê¤Ç¤¢¤ë:

struct timespec {
    long    tv_sec;         /* ÉÃ */
    long    tv_nsec;        /* ¥Ê¥ÎÉà */
}

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EAGAIN

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EINTR

¥·¥°¥Ê¥ëÂÔ¤Á¤¬¥·¥°¥Ê¥ë¥Ï¥ó¥É¥é¤Ë¤è¤Ã¤ÆÃæÃÇ (interrupt) ¤µ¤ì¤¿ (¤³¤Î¥Ï¥ó¥É¥é¤Ï set ¤Ë¤¢¤ë¥·¥°¥Ê¥ë°Ê³°¤Î¤â¤Î¤Ç¤¢¤ë)¡£

EINVAL

timeout ¤¬ÉÔÀµ¤Ç¤¢¤ë¡£

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Ä̾ï¤Î»ÈÍÑË¡¤Ç¤Ï¡¢¸Æ¤Ó½Ð¤·Â¦¥×¥í¥»¥¹¤Ï¤³¤ì¤é¤Î´Ø¿ô¤è¤êÀè¤Ë sigprocmask() ¤Î¸Æ¤Ó½Ð¤¹¤³¤È¤Ë¤è¤ê set ¤Ë´Þ¤Þ¤ì¤ë¥·¥°¥Ê¥ë¤ò¥Ö¥í¥Ã¥¯¤· (¤½¤Î¤¿¤á¤Ë¤³¤ì¤é¤Î¥·¥°¥Ê¥ë¤¬¤³¤Î¸å¤Ë³¤¯ sigwaitinfo() ¤ä sigtimedwait() ¤Î¸Æ¤Ó½Ð¤·¤Î´Ö¤ËÇÛÁ÷¤µ¤ì¤¿¾ì¹ç¤Ë¤Ï¡¢ ¥Ç¥Õ¥©¥ë¥È¤ÎÇÛÃ֤ϹԤï¤ì¤º)¡¢ ¤³¤ì¤é¤Î¥·¥°¥Ê¥ë¤ËÂФ¹¤ë¥Ï¥ó¥É¥é¤ÏÀßÄꤷ¤Ê¤¤¡£ ¥Þ¥ë¥Á¥¹¥ì¥Ã¥É¥×¥í¥°¥é¥à¤Ç¤Ï¡¢ sigwaitinfo() ¤ä sigtimedwait() ¤ò¸Æ¤Ó½Ð¤·¤¿¥¹¥ì¥Ã¥É°Ê³°¤Î¥¹¥ì¥Ã¥É¤Ë¤½¤Î¥·¥°¥Ê¥ë¤¬ÇÛÁ÷¤µ¤ì¤Ê¤¤¤è¤¦¤Ë¡¢ Á´¤Æ¤Î¥¹¥ì¥Ã¥É¤Ç³ºÅö¥·¥°¥Ê¥ë¤ò¥Ö¥í¥Ã¥¯¤¹¤Ù¤­¤Ç¤¢¤ë¡£

POSIX ¤Ç¤Ï sigtimedwait() ¤Î°ú¤­¿ô timeout ¤ÎÃͤò NULL ¤Ë¤·¤¿¾ì¹ç¤Î°ÕÌ£¤ò̤ÄêµÁ¤È¤·¤Æ¤¤¤ë¡£ sigwaitinfo() ¤ò¸Æ¤Ó½Ð¤·¤¿¤Î¤ÈƱ¤¸°ÕÌ£¤È¤·¤Æ¤â¤è¤¤¤³¤È¤Ë¤Ê¤Ã¤Æ¤ª¤ê¡¢ ¼ÂºÝ Linux ¤Ç¤Ï¤³¤Î¤è¤¦¤ËÆ°ºî¤¹¤ë¡£

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POSIX.1-2001

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kill(2), sigaction(2), signal(2), sigpending(2), sigprocmask(2), sigqueue(2), sigsetops(3), signal(7)