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FTOKSection: Linux Programmer's Manual (3)Updated: November 1, 1993 Index Return to Main Contents ̾Á°ftok - ¥Ñ¥¹Ì¾¤È¥×¥í¥¸¥§¥¯¥È¼±ÊÌ̾¤ò System V IPC ¥¡¼¤ËÊÑ´¹¤¹¤ë½ñ¼°# include <sys/types.h> # include <sys/ipc.h> key_t ftok ( char *pathname, char proj ) ÀâÌÀ¤³¤Î´Ø¿ô¤Ï¥¢¥¯¥»¥¹²Äǽ¤Ê¥Õ¥¡¥¤¥ë¤Î¥Ñ¥¹Ì¾¤È¥×¥í¥¸¥§¥¯¥È¼±ÊÌ̾ (project identifier) ¤ò key_t ·¿¤ò»ý¤Ä System V IPC ¥¡¼¤ËÊÑ´¹¤¹¤ë¡£ÊÖ¤êÃÍÀ®¸ù¤·¤¿¾ì¹ç¤ÏÊÑ´¹¤µ¤ì¤¿ key_t ¤ÎÃͤ¬ÊÖ¤µ¤ì¤ë¡£ ¾¤Î¾ì¹ç¤Ï -1 ¤¬ÊÖ¤µ¤ì¡¢¥¨¥é¡¼¤ÎÆâÍÆ¤¬ errno ¤Ë½ñ¤¹þ¤Þ¤ì¤ë¡£¤³¤ÎÆâÍÆ¤Ï¥·¥¹¥Æ¥à¥³¡¼¥ë stat(2) ¤Î¤â¤Î¤ÈƱ¤¸¤Ç¤¢¤ë¡£¥Ð¥°key_t ¤ÎÃͤϰʲ¼¤Î¤è¤¦¤ËÀ¸À®¤µ¤ì¤ë¡£¤Þ¤º pathname ¤ËÂбþ¤¹¤ë¥Ç¥£¥¹¥¯¥Õ¥¡¥¤¥ë¤ò stat ¤·¤Æ¡¢ i-node ÈÖ¹æ¤È¥Õ¥¡¥¤¥ë¤¬½ê°¤·¤Æ¤¤¤ë¥Õ¥¡¥¤¥ë¥·¥¹¥Æ¥à¤Î¥Þ¥¤ ¥Ê¡¼¥Ç¥Ð¥¤¥¹ÈÖ¹æ¤òÆÀ¤ë¡£¼¡¤Ë proj ¤ÎÃÍ (8 ¥Ó¥Ã¥È) ¤È i-node ÈÖ¹æ¤Î²¼°Ì 16 ¥Ó¥Ã¥È¡¢¥Þ¥¤¥Ê¡¼¥Ç¥Ð¥¤¥¹ ÈÖ¹æ¤Î 8 ¥Ó¥Ã¥È¤ò²Ã¤¨¤Æ key_t ¤È¤¹¤ë¡£ ¤³¤Î¥¢¥ë¥´¥ê¥º¥à¤Ç¤Ï¡¢¥¡¼¤ÎÃͤ¬Â¾¤È½Å¤Ê¤é¤Ê¤¤¤³¤È¤¬Êݾڤµ¤ì¤Ê¤¤¡£¼ÂºÝ °Ê²¼¤Î¤è¤¦¤Ê¾ì¹ç¤¬¹Í¤¨¤é¤ì¤ë¡£
´ØÏ¢¹àÌÜipc(5), msgget(2), semget(2), shmget(2), stat(2)
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