进程通信

来源：互联网发布：剑三喵脸数据编辑：程序博客网时间：2024/06/15 19:24
#include "conio.h"                          #include "stdio.h"#include "stdlib.h"              struct jincheng_type   {      int pid;     int youxian;     int daxiao;     int msg;     int live;     };    struct jincheng_type neicun[20],waicun[20];    int shumu=0,pid_l;    main()  {    int n,m,i;    char a;    n=1;    while(n==1)      {system("cls");printf("\n********************************************");printf("\n*                进程演示系统              *");printf("\n********************************************");printf("\n     1.创建新的进程     2.查看运行进程 ");printf("\n     3.换出某个进程     4.杀死运行进程 ");printf("\n     5.进程之间通信     6.退出               ");printf("\n********************************************");printf("\n请选择（1～6) ");a=getch();        switch(a){          case'1': create( ); break; case'2': viewrun( ); break; case'3': huanchu(); break; case'4': kill( ); break; case'5': tongxun( ); break; case'6': exit(0); default: n=0;  }      }  }          create( )  /* 创建一个进程的示例（不完整的程序） */{   if(shumu>=20)                {          printf("\n内存已满，请先结束或换出进程\n");                }              else                 {   printf("\n请输入新进程的pid\n");           scanf("%d",&neicun[shumu+1].pid);           printf("\n请输入新进程的优先级\n");           scanf("%d",&neicun[shumu+1].youxian);           printf("\n请输入新进程的大小\n");           scanf("%d",&neicun[shumu+1].daxiao);           printf("\n请输入新进程的消息\n");           scanf("%d",&neicun[shumu+1].msg);           neicun[shumu+1].live=1;           shumu++;                 }                 return neicun[shumu-1].live;}           viewrun( )/*查看运行进程*/           {            int vpid;           printf("\n请输入进程的pid\n");           scanf("%d",&vpid);     if(vpid>0&&vpid<=20&&neicun[vpid].live==1)     {     printf("\n进程的pid是: %d\n",neicun[vpid].pid);printf("进程的优先级是: %d\n",neicun[vpid].youxian);printf("进程的大小是:%d\n",neicun[vpid].daxiao);printf("进程的消息是:%d\n",neicun[vpid].msg);     }            else              {printf("\n所查看运行进程不存在\n");              }        printf("请按回车退出查看\n");        vpid=getch();                }                huanchu()/*换出某个进程*/                {                 int pid1,pid2;        char c;                printf("\n请输入第一个替换进程的pid\n");                scanf("%d",&pid1);                printf("\n请输入第二个替换进程的pid\n");                scanf("%d",&pid2);        if(pid1>0&&pid1<=20&&neicun[pid1].live==1)               {                if(neicun[pid1].youxian>neicun[pid2].youxian)              {                waicun[20].pid=neicun[pid1].pid;                waicun[20].youxian=neicun[pid1].youxian;                waicun[20].daxiao=neicun[pid1].daxiao;                waicun[20].msg=neicun[pid1].msg;  neicun[pid1].pid=neicun[pid2].pid;                neicun[pid1].youxian=neicun[pid2].youxian;                neicun[pid1].daxiao=neicun[pid2].daxiao;                neicun[pid1].msg=neicun[pid2].msg;                  neicun[pid2].pid=waicun[20].pid;  neicun[pid2].youxian=waicun[20].youxian;  neicun[pid2].daxiao=waicun[20].daxiao;  neicun[pid2].msg=waicun[20].msg;  printf("\n替换完成\n");  printf("\n被替换进程的pid是: %d\n",waicun[20].pid);  printf("被替换进程的优先级是: %d\n",waicun[20].youxian);  printf("被替换进程的大小是:%d\n",waicun[20].daxiao);  printf("被替换进程的消息是:%d\n",waicun[20].msg);  }  else  {  printf("\n进程优先级不够大");  }                  }                  else                  {                  printf("所查看运行进程不存在");          }          printf("请按回车退出换出进程\n");          c=getche();          return;                  }                  kill()/*杀死运行进程*/                 {               int kpid;          printf("\n请输入进程的pid\n");                  scanf("%d",&kpid);          if(kpid>0&&kpid<20&&neicun[kpid].live==1)                 {  neicun[kpid].live=0;                  }                  return;                  }                  tongxun( )/*进程之间通信*/                  {                  int tpid1,tpid2;                  int buffer;                  char d;          printf("\n请输入通信源进程pid\n");                  scanf("%d",&tpid1);                  printf("\n请输入通信目的进程pid\n");                  scanf("%d",&tpid2);          if(tpid1>0&&tpid1<20&&neicun[tpid1].live==1)              {              buffer=neicun[tpid1].msg;              neicun[tpid1].msg=neicun[tpid2].msg;              neicun[tpid2].msg=buffer;printf("\n源进程的消息是: %d\n",neicun[tpid1].msg);printf("\n目的进程的消息是: %d\n",neicun[tpid2].msg);              }                  else              {              printf("\n所查看运行进程不存在\n");      }      printf("\n请按回车退出进程通信\n");              d=getch();              return;}
1 0