#include?
#include
#include?
#include?
#include?
#include?
#include
#include????????????/*?For?O_*?constants?*/
#include?????????/*?For?mode?constants?*/
#include?
#include
sem_t?*sem1*sem2*sem3*sem4*sem5*sem6*sem7;
pthread_t?p1p2p3p4p5p6;
const?int?T=5;
void?get_sem（void）;
void?inite（void）;
void?creat_pthread（void）;
void?*P1（void*?arg）;
void*?P2（void*）;
void?*P3（void*）;
void?*P4（void*）;
void*?P5（void*）;
void?*P6（void*）;
void?join（void）;
int?main（）
{
????get_sem（）;
????inite（）;
????creat_pthread（）;
????join（）;??
????return?0;
}
void?get_sem（void）
{
????if（（sem1?=?sem_open（“sem1“??O_RDWR|O_CREAT?0666））?==?SEM_FAILED）{
	?perror（“semget?sem1?error!\n“）;
????}
????if（（sem2?=?sem_open（“sem2“?O_RDWR|O_CREAT?0666））?==?SEM_FAILED）{
	perror（“semget?sem2?erroe!\n“）;
????}
????if（（sem3?=?sem_open（“sem3“O_RDWR|O_CREAT?0666））?==?SEM_FAILED）{
	perror（“semget?sem3?erroe!\n“）;
????}
???if（（sem4?=?sem_open（“sem4“?O_RDWR|O_CREAT?0666））?==?SEM_FAILED）{
	?perror（“semget?sem4?error!\n“）;
????}
????if（（sem5?=?sem_open（“sem5“O_RDWR|O_CREAT?0666））?==?SEM_FAILED）{
	perror（“semget?sem5?erroe!\n“）;
????}
????if（（sem6?=?sem_open（“sem6“O_RDWR|O_CREAT?0666））?==?SEM_FAILED）{
	perror（“semget?sem6?erroe!\n“）;
????}
????if（（sem7?=?sem_open（“sem7“O_RDWR|O_CREAT?0666））?==?SEM_FAILED）{
	perror（“semget?sem7?erroe!\n“）;
????}
return?;
}
void?inite（void）
{
????if（sem_init（sem1?0?0）<0）{
	?perror（“inite?sem1?error!\n“）;
????}
????if（sem_init（sem2?0?0）<0）{
	?perror（“inite?sem2?error!\n“）;
????}
????if（sem_init（sem3?0?0）<0）{
	?perror（“inite?sem3?error!\n“）;
????}
????if（sem_init（sem4?0?0）<0）{
	?perror（“inite?sem4?error!\n“）;
????}
????if（sem_init（sem5?0?0）<0）{
	?perror（“inite?sem1?error!\n“）;
????}
????if（sem_init（sem6?0?0）<0）{
	?perror（“inite?sem1?error!\n“）;
????}
?????if（sem_init（sem7?0?0）<0）{
	?perror（“inite?sem7?error!\n“）;
????}
return?;
}
void?creat_pthread（void）
{
	if（pthread_create（&p1NULL&P1NULL））{
	printf（“error?ctreating?thread“）;
???????abort（）;
}
	if（pthread_create（&p2NULL&P2NULL））{
	printf（“error?ctreating?thread“）;
???????abort（）;
}
	if（pthread_create（&p3NULLP3NULL））{
	printf（“error?ctreating?thread“）;
???????abort（）;
}
	if（pthread_create（&p4NULLP4NULL））{
	printf（“error?ctreating?thread“）;
???????abort（）;
}
	if（pthread_create（&p5NULLP5NULL））{
	printf（“error?ctreating?thread“）;
???????abort（）;
}
	if（pthread_create（&p6NULLP6NULL））{
	printf（“error?ctreating?thread“）;
???????abort（）;
}
return?;
}
void*?P1（void?*arg）
{
????int?t=T;
????while（t--）
????{
	printf（“I?am?thread?1\n“）;
	sleep（1）;
????}
???if（sem_post（sem1）?==?-1）{
	???perror（“線程2的?V操作錯誤\n“）;
????}
???if（sem_post（sem2）?==?-1）{
	???perror（“線程3的?V操作錯誤\n“）;
????}
return?NULL;
}

void*?P2（void?*arg）
{
????int?t=T;
	if（sem_wait（sem1）?==?-1）{
	??????perror（“線程2的?P操作錯誤\n“）;
	}
????while（t--）
????{
	printf（“I?am?thread?2\n“）;
???????sleep（1）;
????}
???if（sem

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????15261??2013-04-18?03:25??任務三\多線程實現同步互斥\thread
?????文件????????4517??2012-06-13?03:43??任務三\多線程實現同步互斥\thread.cpp
?????文件??????????84??2013-04-18?03:25??任務三\多線程實現同步互斥\makefile
?????文件?????????420??2012-06-13?08:48??任務三\多進程實現同步互斥\makefile
?????文件????????7473??2012-06-13?09:30??任務三\多進程實現同步互斥\P1
?????文件?????????297??2012-06-13?08:27??任務三\多進程實現同步互斥\P1.cpp
?????文件????????7509??2012-06-13?09:30??任務三\多進程實現同步互斥\P2
?????文件?????????338??2012-06-13?09:29??任務三\多進程實現同步互斥\P2.cpp
?????文件????????7473??2012-06-13?09:30??任務三\多進程實現同步互斥\P3
?????文件?????????297??2012-06-13?09:29??任務三\多進程實現同步互斥\P3.cpp
?????文件????????7473??2012-06-13?09:30??任務三\多進程實現同步互斥\P4
?????文件?????????297??2012-06-13?09:29??任務三\多進程實現同步互斥\P4.cpp
?????文件????????7509??2012-06-13?09:30??任務三\多進程實現同步互斥\P5
?????文件?????????338??2012-06-13?07:09??任務三\多進程實現同步互斥\P5.cpp
?????文件????????7473??2012-06-13?09:30??任務三\多進程實現同步互斥\P6
?????文件?????????297??2012-06-13?07:09??任務三\多進程實現同步互斥\P6.cpp
?????文件?????????377??2012-06-13?09:30??任務三\多進程實現同步互斥\PV.cpp
?????文件?????????218??2012-06-13?07:09??任務三\多進程實現同步互斥\PV.h
?????文件???????15113??2013-04-18?03:26??任務三\多進程實現同步互斥\sysv
?????文件????????4665??2012-06-13?09:29??任務三\多進程實現同步互斥\sysv.cpp
?????目錄???????????0??2013-04-18?04:26??任務三\多線程實現同步互斥\
?????目錄???????????0??2013-04-18?04:25??任務三\多進程實現同步互斥\
?????目錄???????????0??2013-04-18?04:26??任務三\