#define???__LIBRARY__
#include?
#include?
#include?
#include?
#include?
#include?

#define??N??600
#define??BUFFSIZE??10

_syscall2（intsem_open?const?char*?name?unsigned?int??value）
_syscall1（int?sem_wait?sem_t??*?sem）
_syscall1（int?sem_post?sem_t??*?sem）
_syscall1（int?sem_unlink?const?char??*?name）
_syscall2（int?shmget?key_t?key?size_t?size）
_syscall2（void?*?shmat?int?shmid?const?void*?shmaddr）

int?main（）
{
????int?shmid?pread?i;
????int?*?buff;
????sem_t???*empty?*full?*mutex;

????empty?=?（sem_t?*）sem_open（“empty“10）;
????full??=?（sem_t?*）sem_open（“full“?0）;
????mutex?=?（sem_t?*）sem_open（“mutex“?1）;
????pread?=?0;
????shmid?=?shmget（（key_t）12?BUFFSIZE*sizeof（int））;
????if（!shmid）
????{????
?????printf（“shmget?failed!“）;
?fflush（stdout）;
?????exit（0）;
????}

????buff?=?（int*）shmat（shmidNULL）;
????if（!buff）
????{
?????printf（“shmat?failed!“）;
?fflush（stdout）;
?????exit（0）;
????}

????for（?i?=?0?;?i?????????{
????????????sem_wait（full）;
????????????sem_wait（mutex）;
????????????printf（“^@^?%d\n“?buff[pread]）;
???????????fflush（stdout）;
???????????pread?=?（?pread?+?1）%?BUFFSIZE;
????????????sem_post（mutex）;
????????????sem_post（empty）;
????????}

????sem_unlink（“empty“）;
????sem_unlink（“full“）;
????sem_unlink（“mutex“）;
????return?0;
}

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----

?????文件???????1358??2009-12-23?12:03??lab?5\consumer.c

?????文件??????11173??2009-12-23?12:04??lab?5\memory.c

?????文件???????1228??2009-12-23?12:04??lab?5\producer.c

?????文件???????7156??2009-12-23?12:04??lab?5\report（3）.txt

?????文件???????2927??2009-12-23?12:04??lab?5\sem（2）.c

?????文件????????796??2009-12-23?12:04??lab?5\shm.c

?????文件???????2828??2009-12-23?12:04??lab?5\sys（3）.h

?????文件???????5229??2009-12-23?12:04??lab?5\system_call（3）.s

?????文件???????6868??2009-12-23?12:04??lab?5\unistd（3）.h

?????目錄??????????0??2011-11-07?14:06??lab?5

-----------?---------??----------?-----??----

????????????????39563????????????????????10