/*
??Author:?KMDJ
??PublishedOn:?CSDN
??Filename:?exp1.c
*/

#include?“exp1.h“
int?main（int?argc?char?*argv[]）{
????int?i;
????int?pid1;
????int?pid2;
????int?status1;
????int?status2;
????char?*arg1[]?=?{“/bin/ls“?“-a“?NULL};
????char?*arg2[]?=?{“/bin/ps“?“-l“?NULL};
????signal（SIGINT（sighandler_t）sigcat）;
????
????pid1=fork（）;

????if（pid1<0）{
????????printf（“Create?Process?failed!\n“）;
????????exit（EXIT_FAILURE）;
????}
????
????if（pid1==0）{
????????printf（“I?am?Child?process?%d\nMy?father?is?%d\nI?will?execute?command?‘ls?-a‘?later\n“?getpid（）?getppid（））;
????????printf（“\n“）;
????????pause（）;
????????printf（“%d?child?will?Running:?\n“?getpid（））;
????????for（i=0;?arg1[i]!=NULL;?i++）?printf（“%s“?arg1[i]）;
????????printf（“\n“）;
????????status1=execve（arg1[0]?arg1?NULL）;
????}
????else{
????????sleep（1）;
????????pid2=fork（）;
????????if（pid2==0）{
????????????printf（“I?am?Child?process?%d\nMy?father?is?%d\nI?will?execute?command?‘ps?-l‘?later\n“?getpid（）?getppid（））;
????????????printf（“\n“）;
????????????pause（）;
????????????printf（“%d?child?will?Running:?\n“?getpid（））;
????????????for（i=0;?arg2[i]!=NULL;?i++）?printf（“%s“?arg2[i]）;
????????????printf（“\n“）;
????????????printf（“\n“）;
????????????status2=execve（arg2[0]?arg2?NULL）;
????????}
????????else{
????????????sleep（1）;
????????????printf（“\nI?am?Parent?process?%d\n“?getpid（））;
????????????if（kill（pid2SIGINT）>=0）
????????????????printf（“\n%d?wakeup?%d?child.\n“?getpid（）?pid2）;
????????????printf（“%d?wait?for?child?done.\n“?getpid（））;
????????????waitpid（pid2?&status1?0）;
????????????printf（“%d?child?process?done.\n“?pid2）;
????????????if（kill（pid1SIGINT）>=0）
????????????????printf（“\n%d?wakeup?%d?child.\n“?getpid（）?pid1）;
????????????printf（“%d?wait?for?child?done.\n“?getpid（））;
????????????waitpid（pid1?&status1?0）;
????????????printf（“%d?child?process?done.\n“?pid1）;
????????????printf（“\nParent?process?done\n“）;
????????}
????}
????return?EXIT_SUCCESS;
}

????????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????文件???????14984??2018-05-26?10:15??exp1
?????文件????????1984??2018-07-14?17:24??exp1.c
?????文件?????????247??2018-06-05?13:02??exp1.h
?????文件????????7416??2018-05-26?10:15??exp1.o
?????文件?????????182??2018-05-26?09:55??Makefile