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linux ϵͳΪʲô ²»¶¨Òå union semun? [¸´ÖÆÁ´½Ó]

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·¢±íÓÚ 2006-09-07 08:42 |Ö»¿´¸Ã×÷Õß |µ¹Ðòä¯ÀÀ
/usr/include/linux/ipc.h ÖÐÓж¨Òå
µ«ÊÇ /usr/include/sys/ipc.h ÖÐûÓÐ
union semun {
                   int val;
                   struct semid_ds *buf;
                   ushort *array;
}arg;
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apache µÄhttp_main.c ÖÐÊÇ×Ô¼ºÔö¼ÓsemunµÄ¶¨ÒåµÄ¡£

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semctl(..., abc); Ò²¿ÉÒÔ¡£

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google spec 1172?
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