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24.5 ¥Õ¥¡¥¤¥ë¥í¥Ã¥¯

2¿Í¤Î¥æ¡¼¥¶¡¼¤¬Æ±»þ¤ËƱ¤¸¥Õ¥¡¥¤¥ë¤òÊÔ½¸¤¹¤ë¤È¡¢¸ß¤¤¤Ë´³¾Ä¤·¹ç¤¤¤Þ¤¹¡£ Emacs¤Ï¡¢¥Õ¥¡¥¤¥ë¤¬Êѹ¹¤µ¤ì¤ë¤È¥Õ¥¡¥¤¥ë¥í¥Ã¥¯¡Êfile lock¡Ë¤ò µ­Ï¿¤¹¤ë¤³¤È¤Ç¡¢¤³¤Î¤è¤¦¤Ê¾õ¶·¤¬È¯À¸¤·¤Ê¤¤¤è¤¦¤ËÅØ¤á¤Þ¤¹¡£ ¤¹¤ë¤È¡¢Emacs¤ÏÊ̤ÎEmacs¤¬¥í¥Ã¥¯¤·¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¤òˬÌ䤷¤¿ ¥Ð¥Ã¥Õ¥¡¤òÊѹ¹¤·¤è¤¦¤È¤¹¤ëºÇ½é¤Î»î¤ß¤ò¸¡½Ð¤Ç¤­¡¢ ¥æ¡¼¥¶¡¼¤Ë¤É¤¦¤¹¤Ù¤­¤«¤òÌ䤤¹ç¤ï¤»¤Þ¤¹¡£

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Function: file-locked-p filename

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Function: lock-buffer &optional filename

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Function: unlock-buffer

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Function: ask-user-about-lock file other-user

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