操作系统生产者消费者c语言,【操作系统|操作系统生产者消费者问题C语言】生产者|消费者|问题|语言-傻大方...

清疚 2022-10-18 00:49 161阅读 0赞

『易坊知识库摘要\_操作系统|操作系统生产者消费者问题C语言』本程序中，main()函数需要三个参数：主线程休眠时间；生产者线程数；消费者线程数。各线程的休眠等待时间是随机的。程序代码：\#include\#include\#include\#include\#define BUFFER\_SIZE 5typedef int bu...

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生产者

操作系统

语言

问题

消费者

1、操作系统概念第七版 中的实验项目：生产者消费者问题 。

本程序中 ， main()函数需要三个参数：主线程休眠时间；生产者线程数；消费者线程数 。

各线程的休眠等待时间是随机的 。

程序代码：\#include\#include\#include\#include\#define BUFFER\_SIZE 5typedef int buffer\_item;

struct vint i;

buffer\_item bufferBUFFER\_SIZE+1;

buffer\_item front=0,rear=0;

HANDLE mutex,empty,full;

int insert\_item(buffer\_item item)/\*ins 。

2、ert item into bufferreturn 0 if successful,otherwise return -1 indicating an error condition\*/if(rear+1)%(BUFFER\_SIZE+1)=front)return 1;

bufferrear=item;

rear=(rear+1)%(BUFFER\_SIZE+1);

return 0;

int remove\_item(buffer\_item \*item)/\*remove an object from buffer placing it in item return 0 if successful,ot 。

3、herwise reutrn -1 indication an error condition \*/if(front = rear)return 1;

\*item=bufferfront;

front=(front+1) % (BUFFER\_SIZE+1);

return 0;

DWORD WINAPI producer(PVOID Param)int rand1;

struct v data=https://www.renrendoc.com/paper/\*(struct v \*)Param;

srand(unsigned)time(0);

while (1) Sleep(rand()%101\*10);

WaitForSingleObject(empty,INFINIT 。

4、E);

WaitForSingleObject(mutex,INFINITE);

rand1 =rand();

printf(producer has producerd %d By %dn,rand1,data.i);

if(insert\_item(rand1)printf(insert data error!n);

ReleaseMutex(mutex);

ReleaseSemaphore(full,1,NULL);

DWORD WINAPI consumer(PVOID Param)int rand1;

struct v data=https://www.renrendoc.com/paper/\*(struct v \*)Param;

srand(unsigned)ti 。

5、me(0);

while (1)Sleep(rand()%101\*10);

WaitForSingleObject(full,INFINITE);

WaitForSingleObject(mutex,INFINITE);

if(remove\_item(&rand1)printf(remove data error! n);

elseprintf(consumer consumed %d By %d n,rand1,data.i);

ReleaseMutex(mutex);

ReleaseSemaphore(empty,1,NULL);

int main(int argc,char \*argv)/\*Get co 。

6、mmand line arguments argv1)(the number of producer threads),argv2(the number of consumer threads),argv3(sleep time)\*/\*Initialize buffer\*/int sleeptime,pnum,snum;

int \*ThreadIdP,\*ThreadIdS,i;

struct v \*countp,\*counts;

HANDLE \*ThreadHandleP,\*ThreadHandleS;

sleeptime=atoi(argv1);

pnum=atoi(argv2);

snum=atoi( 。

7、argv3);

/\*srand(time(NULL);

sleeptime=9000;

pnum=3;

snum=3;

\*/ThreadHandleP=(HANDLE \* )malloc(pnum \* sizeof(HANDLE);

ThreadHandleS=(HANDLE \* )malloc(snum \* sizeof(HANDLE);

ThreadIdP=(int \* )malloc(pnum \* sizeof(int);

ThreadIdS=(int \* )malloc(pnum \* sizeof(int);

mutex=CreateMutex(NULL,FALSE,NULL);

empty=Create 。

8、Semaphore(NULL,BUFFER\_SIZE,BUFFER\_SIZE,NULL);

full=CreateSemaphore(NULL,0,BUFFER\_SIZE+1,NULL);

/\*Create producer thread(s)\*/countp=(struct v \*)malloc(pnum+1)\*sizeof(struct v);

counts=(struct v \*)malloc(snum+1)\*sizeof(struct v);

for(i=0;

i\#include\#include\#include\#define BUFFER\_SIZE 5typedef int buffer\_ite 。

9、m;

struct vint i;

buffer\_item bufferBUFFER\_SIZE+1;

buffer\_item front=0,rear=0;

HANDLE mutex,empty,full;

int insert\_item(buffer\_item item)/\*insert item into bufferreturn 0 if successful,otherwise return -1 indicating an error condition\*/if(rear+1)%(BUFFER\_SIZE+1)=front)return 1;

bufferrear=item;

rear=(rear+ 。

10、1)%(BUFFER\_SIZE+1);

return 0;

int remove\_item(buffer\_item \*item)/\*remove an object from buffer placing it in item return 0 if successful,otherwise reutrn -1 indication an error condition \*/if(front = rear)return 1;

\*item=bufferfront;

front=(front+1) % (BUFFER\_SIZE+1);

return 0;

DWORD WINAPI producer(PVOID 。

11、 Param)int rand1;

struct v data=https://www.renrendoc.com/paper/\*(struct v \*)Param;

srand(unsigned)time(0);

while (1) Sleep(rand()%101\*10);

WaitForSingleObject(empty,INFINITE);

WaitForSingleObject(mutex,INFINITE);

rand1 =rand();

printf(producer has producerd %d By %dn,rand1,data.i);

if(insert\_item(rand1)printf(insert data error!n);

Release 。

12、Mutex(mutex);

ReleaseSemaphore(full,1,NULL);

DWORD WINAPI consumer(PVOID Param)int rand1;

struct v data=https://www.renrendoc.com/paper/\*(struct v \*)Param;

srand(unsigned)time(0);

while (1)Sleep(rand()%101\*10);

WaitForSingleObject(full,INFINITE);

WaitForSingleObject(mutex,INFINITE);

if(remove\_item(&rand1)printf(remove data error! n);

elsep 。

13、rintf(consumer consumed %d By %d n,rand1,data.i);

ReleaseMutex(mutex);

ReleaseSemaphore(empty,1,NULL);

int main(int argc,char \*argv)/\*Get command line arguments argv1)(the number of producer threads),argv2(the number of consumer threads),argv3(sleep time)\*/\*Initialize buffer\*/int sleeptime,pnum,snum;

DW 。

14、ORD \*ThreadIdP,\*ThreadIdS,i;

struct v \*countp,\*counts;

HANDLE \*ThreadHandleP,\*ThreadHandleS;

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标题：操作系统|操作系统生产者消费者问题C语言