Rechercher une page de manuel
inotify
Langue: ja
Version: 2006-02-07 (openSuse - 09/10/07)
Section: 7 (Divers)
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inotify - ¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥¤¥Ù¥ó¥È¤ò´Æ»ë¤¹¤ëÀâÌÀ
inotify API ¤Ï¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¥¤¥Ù¥ó¥È¤ò´Æ»ë¤¹¤ë¤¿¤á¤Îµ¡¹½¤òÄ󶡤¹¤ë¡£ inotify ¤Ï¸Ä¡¹¤Î¥Õ¥¡¥¤¥ë¤ä¥Ç¥£¥ì¥¯¥È¥ê¤ò´Æ»ë¤¹¤ë¤Î¤Ë»È¤¨¤ë¡£ ¥Ç¥£¥ì¥¯¥È¥ê¤ò´Æ»ë¤¹¤ë¾ì¹ç¡¢inotify ¤Ï¥Ç¥£¥ì¥¯¥È¥ê¼«¿È¤È ¥Ç¥£¥ì¥¯¥È¥êÆâ¤Î¥Õ¥¡¥¤¥ë¤Î¥¤¥Ù¥ó¥È¤òÊÖ¤¹¡£°Ê²¼¤Î¥·¥¹¥Æ¥à¥³¡¼¥ë¤¬¤³¤Î API ¤È¶¦¤Ë»ÈÍѤµ¤ì¤ë¡£ inotify_init(2), inotify_add_watch(2), inotify_rm_watch(2), read(2), close(2).
inotify_init(2) ¤Ï inotify ¥¤¥ó¥¹¥¿¥ó¥¹¤òºîÀ®¤·¡¢inotify ¥¤¥ó¥¹¥¿¥ó¥¹¤ò»²¾È¤¹¤ë ¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¤òÊÖ¤¹¡£
inotify_add_watch(2) ¤Ï inotify ¥¤¥ó¥¹¥¿¥ó¥¹¤Ë´ØÏ¢¤Å¤±¤é¤ì¤¿¡Ö´Æ»ëÂÐ¾Ý (watch) ¥ê¥¹¥È¡×¤òÁàºî¤¹¤ë¡£ ´Æ»ëÂоݥꥹ¥È¤Î³Æ¥¢¥¤¥Æ¥à ("watch") ¤Ï¡¢ ¥Õ¥¡¥¤¥ë¤Þ¤¿¤Ï¥Ç¥£¥ì¥¯¥È¥ê¤Î¥Ñ¥¹Ì¾¤È¡¢ ¤½¤Î¥Ñ¥¹Ì¾¤Ç»²¾È¤µ¤ì¤ë¥Õ¥¡¥¤¥ë¤ËÂФ·¤Æ ¥«¡¼¥Í¥ë¤¬´Æ»ë¤¹¤ëÊ£¿ô¤Î¥¤¥Ù¥ó¥È¤Î½¸¹ç¤ò»ØÄꤹ¤ë¡£ inotify_add_watch(2) ¤Ï¿·¤·¤¤´Æ»ë¥¢¥¤¥Æ¥à¤ÎºîÀ®¤ä´û¸¤Î´Æ»ëÂоݤÎÊѹ¹¤¬¤Ç¤¤ë¡£ ³Æ´Æ»ëÂоݤϰì°Õ¤Î¡Ö´Æ»ëÂоݥǥ£¥¹¥¯¥ê¥×¥¿¡×¤ò»ý¤Ä¡£ ¤³¤ì¤Ï´Æ»ëÂоݤòºîÀ®¤·¤¿¤È¤¤Ë inotify_add_watch(2) ¤«¤éÊÖ¤µ¤ì¤ëÀ°¿ô¤Ç¤¢¤ë¡£
inotify_rm_watch(2) ¤Ï inotify ¤Î´Æ»ëÂоݥꥹ¥È¤«¤é¥¢¥¤¥Æ¥à¤òºï½ü¤¹¤ë¡£
inotify ¥¤¥ó¥¹¥¿¥ó¥¹¤ò»Ø¤·¤Æ¤¤¤ë Á´¤Æ¤Î¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¤¬¥¯¥í¡¼¥º¤µ¤ì¤¿¾ì¹ç¡¢ ¤½¤Î²¼Áؤˤ¢¤ë¥ª¥Ö¥¸¥§¥¯¥È¤È¤½¤Î¥ê¥½¡¼¥¹¤Ï¡¢ ¥«¡¼¥Í¥ë¤ÇºÆÍøÍѤ¹¤ë¤¿¤á¤Ë²òÊü¤µ¤ì¤ë¡£ ´ØÏ¢¤¬ÀÚ¤é¤ì¤¿´Æ»ëÂоݤϼ«Æ°Åª¤Ë²òÊü¤µ¤ì¤ë¡£
¤É¤Î¤è¤¦¤Ê¥¤¥Ù¥ó¥È¤¬µ¯¤³¤Ã¤Æ¤¤¤¿¤«¤òÃΤë¤Ë¤Ï¡¢ ¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ç inotify ¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¤ò read(2) ¤¹¤ì¤Ð¤è¤¤¡£ ¤³¤ì¤Þ¤Ç¤Ë²¿¤â¥¤¥Ù¥ó¥È¤¬µ¯¤³¤Ã¤Æ¤¤¤Ê¤¤¾ì¹ç¡¢ Ää»ß (blocking) ¥â¡¼¥É¤Î¥Õ¥¡¥¤¥ë¥Ç¥£¥¹¥¯¥ê¥×¥¿¤Ç¤¢¤ì¤Ð¡¢ ¾¯¤Ê¤¯¤È¤â 1 ¤Ä¤Î¥¤¥Ù¥ó¥È¤¬µ¯¤³¤ë¤Þ¤Ç read(2) ¤ÏÄä»ß¤¹¤ë¡£
read(2) ¤¬À®¸ù¤¹¤ë¤È¡¢°Ê²¼¤Î¹½Â¤ÂΤò 1 ¤Ä°Ê¾å´Þ¤à¥Ð¥Ã¥Õ¥¡¤¬ÊÖ¤µ¤ì¤ë:
struct inotify_event {
int wd; /* ´Æ»ëÂоݥǥ£¥¹¥¯¥ê¥×¥¿ */
uint32_t mask; /* ¥¤¥Ù¥ó¥È¤Î¥Þ¥¹¥¯ */
uint32_t cookie; /* ´ØÏ¢¤¹¤ë¥¤¥Ù¥ó¥È·²¤ò´ØÏ¢¤Å¤±¤ë
°ì°Õ¤Ê¥¯¥Ã¥¡¼ (rename(2) ÍÑ) */
uint32_t len; /* 'name' ¥Õ¥£¡¼¥ë¥É¤Î¥µ¥¤¥º */
char name[]; /* NULL ¤Ç½ªÃ¼¤µ¤ì¤¿Ç¤°Õ¤Î̾Á° */
};
wd ¤Ï¥¤¥Ù¥ó¥ÈȯÀ¸¤Î´Æ»ëÂоݤò»ØÄꤹ¤ë¡£ ¤³¤ì¤Ï¡¢Á°¤â¤Ã¤Æ¹Ô¤ï¤ì¤¿ inotify_add_watch(2) ¸Æ¤Ó½Ð¤·¤ÇÊÖ¤µ¤ì¤¿´Æ»ëÂоݥǥ£¥¹¥¯¥ê¥×¥¿¤Î¤¦¤Á¤Î 1 ¤Ä¤Ç¤¢¤ë¡£
mask ¤Ë¤ÏȯÀ¸¤·¤¿¥¤¥Ù¥ó¥È (²¼µ»²¾È) ¤òµ½Ò¤¹¤ë¤¿¤á¤Î¥Ó¥Ã¥È¤¬´Þ¤Þ¤ì¤ë¡£
cookie ¤Ï´ØÏ¢¤¹¤ë¥¤¥Ù¥ó¥È¤ò´ØÏ¢¤Å¤±¤ë¤¿¤á¤Î°ì°Õ¤ÊÀ°¿ô¤Ç¤¢¤ë¡£ ¸½ºß¤Î¤È¤³¤í¡¢¤³¤ÎÃÍ¤Ï rename ¥¤¥Ù¥ó¥È¤ËÂФ·¤Æ¤Î¤ß»È¤ï¤ì¤Æ¤ª¤ê¡¢ ·ë²Ì¤Î¥Ú¥¢¤Ç¤¢¤ë IN_MOVE_FROM ¤È IN_MOVE_TO ¥¤¥Ù¥ó¥È¤ò¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤Ç´ØÏ¢¤Å¤±¤ë¤³¤È¤¬¤Ç¤¤ë¡£
name ¥Õ¥£¡¼¥ë¥É¤Ï´Æ»ë¤·¤Æ¤¤¤ë¥Ç¥£¥ì¥¯¥È¥êÆâ¤Î¥Õ¥¡¥¤¥ë¤ËÂФ·¤Æ ¥¤¥Ù¥ó¥È¤¬ÊÖ¤µ¤ì¤ë¾ì¹ç¤Î¤¿¤á¤Ë¤À¤±Â¸ºß¤¹¤ë¡£ ´Æ»ë¤¹¤ë¥Ç¥£¥ì¥¯¥È¥ê¤«¤é¤Î¥Õ¥¡¥¤¥ë¤ÎÁêÂХѥ¹Ì¾¤òɽ¤¹¡£ ¤³¤Î¥Ñ¥¹Ì¾¤Ï NULL ¤Ç½ªÃ¼¤µ¤ì¡¢ ¤½¤Î¸å¤ÎÆɤ߹þ¤ß¤ÇŬÀڤʥ¢¥É¥ì¥¹¶³¦¤ËÄ´À°¤¹¤ë¤¿¤á¤Ë¡¢ ¤µ¤é¤Ë NULL ¥Ð¥¤¥È¤¬´Þ¤Þ¤ì¤ë¾ì¹ç¤â¤¢¤ë¡£
len ¥Õ¥£¡¼¥ë¥É¤Ï NULL ¥Ð¥¤¥È¤ò´Þ¤à name ¤ÎÁ´¤Æ¤Î¥Ð¥¤¥È¿ô¤òɽ¤¹¡£ ¤è¤Ã¤Æ¡¢ inotify_event ¹½Â¤ÂΤΥµ¥¤¥º¤Ï sizeof(inotify_event)+len ¤Ç¤¢¤ë¡£
inotify ¥¤¥Ù¥ó¥È
inotify_add_watch(2) ¤Î mask °ú¤¿ô¤È¡¢inotify ¥Õ¥¡¥¤¥ë¹½Â¤ÂΤò read(2) ¤·¤¿¤È¤¤ËÊÖ¤µ¤ì¤ë inotify_event ¹½Â¤ÂΤΠmask ¥Õ¥£¡¼¥ë¥É¤Ï¡¢¤È¤â¤Ë inotify ¥¤¥Ù¥ó¥È¤ò¼±Ê̤¹¤ë¤¿¤á¤Î ¥Ó¥Ã¥È¥Þ¥¹¥¯¤Ç¤¢¤ë¡£ °Ê²¼¤Î¥Ó¥Ã¥È¤¬ inotify_add_watch(2) ¤ò¸Æ¤Ö¤È¤¤Î mask ¤Ë»ØÄê²Äǽ¤Ç¤¢¤ê¡¢ read(2) ¤ÇÊÖ¤µ¤ì¤ë mask ¥Õ¥£¡¼¥ë¥É¤ÇÊÖ¤µ¤ì¤ë:| ¥Ó¥Ã¥È | ÀâÌÀ |
| IN_ACCESS | ¥Õ¥¡¥¤¥ë¤¬¥¢¥¯¥»¥¹ (read) ¤µ¤ì¤¿¡£(*) |
| IN_ATTRIB | ¥á¥¿¥Ç¡¼¥¿¤¬Êѹ¹¤µ¤ì¤¿ (µö²Ä¡¢¥¿¥¤¥à¥¹¥¿¥ó¥×¡¢ |
| ³Èĥ°À¤Ê¤É)¡£(*) | |
| IN_CLOSE_WRITE | ½ñ¤¹þ¤ß¤Î¤¿¤á¤Ë¥ª¡¼¥×¥ó¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¤¬ |
| ¥¯¥í¡¼¥º¤µ¤ì¤¿¡£(*) | |
| IN_CLOSE_NOWRITE | ½ñ¤¹þ¤ß°Ê³°¤Î¤¿¤á¤Ë¥ª¡¼¥×¥ó¤µ¤ì¤¿¥Õ¥¡¥¤¥ë¤¬ |
| ¥¯¥í¡¼¥º¤µ¤ì¤¿¡£(*) | |
| IN_CREATE | ´Æ»ëÂоݥǥ£¥ì¥¯¥È¥êÆâ¤Ç¥Õ¥¡¥¤¥ë¤ä |
| ¥Ç¥£¥ì¥¯¥È¥ê¤¬ºîÀ®¤µ¤ì¤¿¡£(*) | |
| IN_DELETE | ´Æ»ëÂоݥǥ£¥ì¥¯¥È¥êÆâ¤Ç¥Õ¥¡¥¤¥ë¤ä |
| ¥Ç¥£¥ì¥¯¥È¥ê¤¬ºï½ü¤µ¤ì¤¿¡£(*) | |
| IN_DELETE_SELF | ´Æ»ëÂоݤΥǥ£¥ì¥¯¥È¥ê¤Þ¤¿¤Ï¥Õ¥¡¥¤¥ë¼«¿È¤¬ |
| ºï½ü¤µ¤ì¤¿¡£ | |
| IN_MODIFY | ¥Õ¥¡¥¤¥ë¤¬½¤Àµ¤µ¤ì¤¿¡£(*) |
| IN_MOVE_SELF | ´Æ»ëÂоݤΥǥ£¥ì¥¯¥È¥ê¤Þ¤¿¤Ï¥Õ¥¡¥¤¥ë¼«¿È¤¬ |
| °ÜÆ°¤µ¤ì¤¿¡£ | |
| IN_MOVED_FROM | ¥Õ¥¡¥¤¥ë¤¬´Æ»ëÂоݥǥ£¥ì¥¯¥È¥ê³°¤Ø°ÜÆ°¤µ¤ì¤¿¡£(*) |
| IN_MOVED_TO | ¥Õ¥¡¥¤¥ë¤¬´Æ»ëÂоݥǥ£¥ì¥¯¥È¥êÆâ¤Ø°ÜÆ°¤µ¤ì¤¿¡£(*) |
| IN_OPEN | ¥Õ¥¡¥¤¥ë¤¬¥ª¡¼¥×¥ó¤µ¤ì¤¿¡£(*) |
¥Ç¥£¥ì¥¯¥È¥ê¤ò´Æ»ë¤¹¤ë¾ì¹ç¡¢ ¾åµ¤Ç¥¢¥¹¥¿¥ê¥¹¥¯ (*) ¤òÉÕ¤±¤¿¥¤¥Ù¥ó¥È¤Ï¡¢ ¤½¤Î¥Ç¥£¥ì¥¯¥È¥êÆâ¤Î¥Õ¥¡¥¤¥ë¤ËÂФ·¤ÆȯÀ¸¤¹¤ë¡£ ¤³¤Î¤È¤ inotify_event ¹½Â¤ÂΤÇÊÖ¤µ¤ì¤ë name ¥Õ¥£¡¼¥ë¥É¤Ï¡¢¥Ç¥£¥ì¥¯¥È¥êÆâ¤Î¥Õ¥¡¥¤¥ë̾¤òɽ¤¹¡£
IN_ALL_EVENTS ¥Þ¥¯¥í¤Ï¾åµ¤Î¥¤¥Ù¥ó¥ÈÁ´¤Æ¤Î¥Þ¥¹¥¯¤È¤·¤ÆÄêµÁ¤µ¤ì¤ë¡£ ¤³¤Î¥Þ¥¯¥í¤Ï inotify_add_watch(2) ¤ò¸Æ¤Ó½Ð¤¹¤È¤¤Î mask °ú¤¿ô¤È¤·¤Æ»È¤¨¤ë¡£
¤µ¤é¤Ë 2 ¤Ä¤ÎÊØÍø¤Ê¥Þ¥¯¥í¤¬¤¢¤ë¡£ IN_MOVE ¤Ï IN_MOVED_FROM|IN_MOVED_TO ¤ÈÅù¤·¤¯¡¢ IN_CLOSE ¤Ï IN_CLOSE_WRITE|IN_CLOSE_NOWRITE ¤ÈÅù¤·¤¤¡£
¤½¤Î¾¤Ë¤â°Ê²¼¤Î¥Ó¥Ã¥È¤ò inotify_add_watch(2) ¤ò¸Æ¤Ö¤È¤¤Î mask ¤Ë»ØÄê¤Ç¤¤ë:
| ¥Ó¥Ã¥È | ÀâÌÀ |
| IN_DONT_FOLLOW | pathname ¤¬¥·¥ó¥Ü¥ê¥Ã¥¯¥ê¥ó¥¯¤Ç¤¢¤ë¾ì¹ç¤Ëé¤é¤Ê¤¤¡£ |
| IN_MASK_ADD | pathname ¤ËÂФ¹¤ë´Æ»ë¥Þ¥¹¥¯¤¬´û¤Ë¸ºß¤¹¤ë¾ì¹ç¡¢ |
| (¥Þ¥¹¥¯¤ÎÃÖ¤´¹¤¨¤Ç¤Ï¤Ê¤¯) ¥¤¥Ù¥ó¥È¤òÄɲà (OR) ¤¹¤ë¡£ | |
| IN_ONESHOT | 1 ¤Ä¤Î¥¤¥Ù¥ó¥È¤Ë¤Ä¤¤¤Æ pathname ¤ò´Æ»ë¤·¡¢ |
| ¥¤¥Ù¥ó¥È¤¬È¯À¸¤·¤¿¤é´Æ»ëÂоݥꥹ¥È¤«¤éºï½ü¤¹¤ë¡£ | |
| IN_ONLYDIR | pathname ¤¬¥Ç¥£¥ì¥¯¥È¥ê¤Î¾ì¹ç¤Ë¤Î¤ß´Æ»ë¤¹¤ë¡£ |
°Ê²¼¤Î¥Ó¥Ã¥È¤¬ read(2) ¤ÇÊÖ¤µ¤ì¤ë mask ¥Õ¥£¡¼¥ë¥É¤ËÀßÄꤵ¤ì¤ë:
| ¥Ó¥Ã¥È | ÀâÌÀ |
| IN_IGNORED | ´Æ»ëÂоݤ¬ (inotify_rm_watch(2) ¤Ë¤è¤ê) ÌÀ¼¨Åª¤Ë |
| ºï½ü¤µ¤ì¤¿¡£¤â¤·¤¯¤Ï (¥Õ¥¡¥¤¥ë¤Îºï½ü¡¢¤Þ¤¿¤Ï¥Õ¥¡¥¤¥ë | |
| ¥·¥¹¥Æ¥à¤Î¥¢¥ó¥Þ¥¦¥ó¥È¤Ë¤è¤ê) ¼«Æ°Åª¤Ëºï½ü¤µ¤ì¤¿¡£ | |
| IN_ISDIR | ¤³¤Î¥¤¥Ù¥ó¥È¤ÎÂоݤ¬¥Ç¥£¥ì¥¯¥È¥ê¤Ç¤¢¤ë¡£ |
| IN_Q_OVERFLOW | ¥¤¥Ù¥ó¥È¥¥å¡¼¤¬°î¤ì¤¿ (¤³¤Î¥¤¥Ù¥ó¥È¤Î¾ì¹ç¡¢ |
| wd ¤Ï -1 ¤Ç¤¢¤ë)¡£ | |
| IN_UNMOUNT | ´Æ»ëÂоݥª¥Ö¥¸¥§¥¯¥È¤ò´Þ¤à¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤¬ |
| ¥¢¥ó¥Þ¥¦¥ó¥È¤µ¤ì¤¿¡£ |
/proc ¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹
°Ê²¼¤Î¥¤¥ó¥¿¡¼¥Õ¥§¡¼¥¹¤Ï¡¢inotify ¤Ç¾ÃÈñ¤µ¤ì¤ë ¥«¡¼¥Í¥ë¥á¥â¥ê¤ÎÁíÎ̤òÀ©¸Â¤¹¤ë¤Î¤Ë»ÈÍѤǤ¤ë:- /proc/sys/fs/inotify/max_queued_events
- ¤³¤Î¥Õ¥¡¥¤¥ë¤ÎÃͤϡ¢¥¢¥×¥ê¥±¡¼¥·¥ç¥ó¤¬ inotify_init(2) ¤ò¸Æ¤Ó½Ð¤¹¤È¤¤Ë»ÈÍѤµ¤ì¡¢Âбþ¤¹¤ë inotify ¥¤¥ó¥¹¥¿¥ó¥¹¤Ë¤Ä¤¤¤Æ ¥¥å¡¼¤ËÆþ¤ì¤é¤ì¤ë¥¤¥Ù¥ó¥È¤Î¿ô¤Î¾å¸Â¤òÀßÄꤹ¤ë¡£ ¤³¤ÎÀ©¸Â¤òĶ¤¨¤¿¥¤¥Ù¥ó¥È¤ÏÇË´þ¤µ¤ì¤ë¤¬¡¢ IN_Q_OVERFLOW ¥¤¥Ù¥ó¥È¤¬¾ï¤ËÀ¸À®¤µ¤ì¤ë¡£
- /proc/sys/fs/inotify/max_user_instances
- 1 ¤Ä¤Î¼Â¥æ¡¼¥¶ ID ¤ËÂФ·¤ÆÀ¸À®¤Ç¤¤ë inotify ¥¤¥ó¥¹¥¿¥ó¥¹¤Î¿ô¤Î¾å¸Â¤ò»ØÄꤹ¤ë¡£
- /proc/sys/fs/inotify/max_user_watches
- ³Æ inotify ¥¤¥ó¥¹¥¿¥ó¥¹¤Ë´ØÏ¢¤Å¤±¤ë´Æ»ëÂоݤοô¤ÎÀ©¸Â¤ò»ØÄꤹ¤ë¡£
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inotify_add_watch(2), inotify_init(2), inotify_rm_watch(2), read(2), stat(2), Documentation/filesystems/inotify.txt.Contenus ©2006-2024 Benjamin Poulain
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