#include
#include
#include
#include?
#include?
#define?t?10

int?my_pipe[2];
pid_t?pid_1pid_2;

void?killprocess（int?sign）{
	printf（“\n“）;
????if（sign?==?SIGINT）{???????????????//傳遞SIGUSR信號給子進程
????????kill（pid_1SIGUSR1）;
????????kill（pid_2SIGUSR1）;
????}
}
void?killpid1（）{
????close（my_pipe[0]）;
????if（pid_1==?0?）{
????????printf（“Child?Process1?is?killed?by?Parent!\n“）;
????????exit（0）;???????????????????????
????}
}
void?killpid2（）{
????close（my_pipe[1]）;
????if（pid_2?==?0?）{
????????printf（“Child?Process2?is?killed?by?Parent!\n“）;
????????exit（0）;???????????????????????
????}
}

int?main（void）{
????int?x=1;
????char?buffer1[100];
????char?buffer2[100];
????if（pipe（my_pipe）<0）{
????????printf（“ERROR“）;
????????return?-1;
????}
????//設置軟中斷信號SIGINT
????signal（SIGINTkillprocess）;
????//創建子進程cls
????pid_1=fork（）;
????if（pid_1==0）{
????????signal（SIGINTSIG_IGN）;
????????signal（SIGUSR1killpid1）;
	alarm（t）;
	signal（SIGALRMkillpid1）;
????????while（1）{
????????????sprintf（buffer1“I?send?you?%d?times“x）;
????????????write（my_pipe[1]buffer130）;
????????????x++;
????????????sleep（1）;
????????}
????}
????pid_2=fork（）;
????if（pid_2==0）{????
????????signal（SIGINTSIG_IGN）;
????????signal（SIGUSR1killpid2）;
	alarm（t）;
	signal（SIGALRMkillpid2）;
????????while（1）{
	????read（my_pipe[0]buffer240）;
	????printf（“%s\n“buffer2）;
	}
????}
???//?else{
????????waitpid（pid_1NULL0）;//等待子進程退出
????????waitpid（pid_2NULL0）;
????????close（my_pipe[0]）;//關閉管道
????????close（my_pipe[1]）;
????????printf（“Parent?Process?is?killed!\n“）;
??//??}
????return?0;
}

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

?????文件???????1682??2019-01-09?05:36??1.c

?????文件???????1313??2018-12-17?00:33??2.c

?????文件????????559??2018-12-17?00:33??2.h

?????文件????????928??2018-12-24?01:18??3.c

?????文件???????1028??2018-12-24?01:04??3.h

?????文件???????2446??2018-12-28?18:39??4.c

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

?????????????????7956????????????????????6