p7.16.c

来自「《linux编程技术详解》 linux编程入门的好书」· C语言 代码 · 共 31 行

#include <stdio.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/wait.h>

int main(int argc,char* argv[]){
	pid_t pid,wait_pid;
	int status;
	int i;

	if(argc<4){
		printf("Usage: %s para1 para2 para3\n",argv[0]);
		return 1;
	}

	for(i=1;i<4;i++)
		if((pid=fork())==0)
			execl("./p7.14","p7.14",argv[i],NULL);
		else
			printf("create the child process id %d\n",pid);

	while((wait_pid=wait(&status)) && wait_pid!=-1){
                if(WIFSIGNALED(status))
    			printf("process id:%d Receive SIG :%d exit\n",pid,WTERMSIG(status));
		
		if(WIFEXITED (status))
			printf("process id:%d exit code %d\n",pid,WEXITSTATUS(status));
	}
	return 0;
}