2023年实验报告实验七.docx

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1、浙江大学城市学院实验报告课程名称操作系统原理实验实验项目名称实验七 进程通信一一消息队列学生姓名 潘唯帆专业班级 计算1003 学号 3 1001 172实验成绩 指导老师（署名）日期注意： 务请保存好各自的源代码，已备后用。 请上传到BB平台。一.实验目的和规定1 . 了解Linux系统的进程间通信机构（IPC）;2 .理解Linux关于消息队列的概念；3 .掌握Linux支持消息队列的系统调用；4 .巩固进程同步概念。二、实验内容实现并发进程间消息的发送与接受。三、实验环节1、消息的发送与接受1 ）。编译运营给出的c 1 i en t .c和serve r .c,观测运营结果。四、讨论、心

2、得记录实验感受、上机过程中碰到的困难及解决办法、遗留的问题、意见和建议等。文件 编辑 查看&）终端 标签 帮助）rootolocalhost panwei fanj= gcc -o server server.cserver.c： In function server ：server.c ：22：警告：隐式声明与内建函数f)rintf不兼容 server.c：26：警告：隐式声明与内建函数exit不兼容rootelocalhost panwei fan= ./server(server)received(server)received(server)received(server)receiv

3、ed(server)received(server)received(server)received(server)received(server)received(server)receivedrootlocalhost panwei fan =文件6 编辑查看Q)终端标签帮助出)rootlocal host panwet fan2 gcc -o client cl tent.cclient.c： In function Client：client .c ：22：警告：隐式声明与内建函数prtntf不兼容 client.c：26：警告：隐式声明与内建函数exif不兼容 rootlocalho

4、st panwei fan= ./client(client)sent(cl tent)sent(client)sent(clienl)sent(client)sent(clienl)sent(client)sent(client)sent(client)sent(client)sentrootlocal host panweifan)- 12）请给上述程序添加同步控制，实现同步运营。rootlocalhost:/panweifan文件的 编辑 查看。终端 标签 帮助电)rootlocalhost panweifan1= ./server (server)received (server)re

5、cei ved (server)received (server)received (se r ve r) rec e i ved (server)received (server)received (server)received (server)received (server)receive。|rootlocalhost panweiianj- 二# i n c 1 udc # i n elude #i n elude #d e fine MSG KEY 75struct msgf o rm(d o ng mt y p e ;char mtcxt 10 0 0 ;msg;int m s

6、gqid;v oid ser v er()(/*创建75#消息队列* /om s gq i d=m sgget(MSG KEY,0777| I PC_CRE AT); ado。/*接受消息*/0ms g rcv(msgqid, &msg,10 3 0,0,0);pr i n t f(se r ver)r e ceivedn);dock f ( msg,0, 0 )；。 w h ile(msg.mty p e != 1 );/*删除消息队列，归还资源*/msgctl(ms g q i d , I PC_RMID, 0 ); e xit(O);) ma i n ()s e rver ();#inc

7、lude #i n elude # i n c ludc e fine MSGK E Y 75s t r u c t msg form(long mtype;o c ha r mt e x t 1 0 00;)msg;int msgqi d ;void clicn t ()(1 nt i ;/*打开75#消息队列*/msg q id=msgge t (MSGKEY, 0 777);o f or( i = 1 0;i=l; i -)(wmsg.mty p e=i;。 prin t f ( (cl i e n t)se n tn);/*发送消息*/s gsn d (ms g qid,&m s g,

8、 1024,0);1 o c k f(m s gJ,0);0e xi t (0);niai n ()c licnt();2、编写程序：使用消息队列，实现具有下列功能两个程序（进程）:1）程序A负责接受用户来自键盘的输入；2）程序B负责实时输出用户由程序A接受的字符。程序A和程序B可分别在两个进程上同时运营。rootlocalhost:/panwelfan文件6 编转查看9 终端标签帮助回rootolocalhost panweifan) ./client I have a dream that one day everyone will live happy- liferootlocalhos

9、t:/panwelfan文件编辑查看Q)终端标签帮助回rootlocal host panwei fan- ./server(server)received：I(server)received：have(server)received：a(server)recei ved：dream(server)received：that(server)recei ved：one(server)received：day(server)recei ved：everyone(server)received：will(server)received：1ive(server)rece i ved：a(server)

10、received:happy(server)received：1i fe(server)rec e i ved：.# in c 1 u d e i n c lude # i n elude #define MSGKEY 7 5stru c t ms g form(0 10ng mtype;c h ar mtext 1 000;m s g;i nt ms g q i d;vo i d client()int i；。/*打开75#消息队列*/msgqi d =ms g g e i (MSGKEY, 0 777)；f o r ( i =10 0 ;i= 1 ； i)(Mmsg.mtype=i;sca

11、nf (%s ,msg.mtcxt);。/*发送消息*/wmsgs n d(msg q id,&msg,10 2 4 ,0);1 ockf(msg, 1 ,0);exit( 0 );)main ()(clien t ();inc 1 ude # i nc 1 u d e i n c 1 ude # de fine MS GKEY 75s t r u c t msg f o rmlong m t ype;cha r m t ext 1 000;int msgqid;vo i d s erv e r ()(。/*创建75#消息队列* /msgqid=m s ggel(M S G KEY, 07 77|IPC_CREA T )； do/*接受消息* /msgrcv(m s g q id,&m s g.l 0 30, 0 ,0);%sn 0 ,m s g. m t ext)printf(serv e r) r e c eive d ： dockf(msg,0,0); while(m s g.m(ype!=l )；0)；/*删除消息队列，归还资源*/ am s gc t l(msg q id,I PC_RMID, cxi t ( 0 );)main()。s e rve r ()；