DWORD)(((ThreadInfo*)(p))->delay *INTE_PER_SEC);
m_persist=(DWORD)(((ThreadInfo*)(p))->persist *INTE_PER_SEC);
Sleep(m_delay);
printf("Write thread %d sents the writing require.\n",m_serial);
//等待资源
EnterCriticalSection(&RP_Write);
//写文件
printf("Writer thread %d begins to write to the file.\n",m_serial);
Sleep(m_persist);
//退出线程
printf("Write thread %d finished writing to the file.\n",m_serial);
//释放资源
LeaveCriticalSection(&RP_Write);
}
//////////////////////////////////////////////////////////////
//读者优先处理函数
//file:文件名
void ReaderPriority(char *file)
{
DWORD n_thread=0; //线程数目
DWORD thread_ID; //线程ID
DWORD wait_for_all; //等待所有线程结束
//互斥对象
HANDLE h_Mutex;
h_Mutex=CreateMutex(NULL,FALSE,"mutex_for_readcount");
//线程对象的数组
HANDLE h_Thread[MAX_THREAD_NUM];
ThreadInfo thread_info[MAX_THREAD_NUM];
readcount=0; //初始化readcount
InitializeCriticalSection(&RP_Write); //初始化临界区
ifstream inFile;
inFile.open (file);
printf("Reader Priority:\n\n");
while(inFile)
{
//读入每一个读者,写者的信息
inFile>>thread_info[n_thread].serial;
inFile>>thread_info[n_thread].entity;
inFile>>thread_info[n_thread].delay;
inFile>>thread_info[n_thread++].persist;
inFile.get();
}
for(int i=0;i<(int)(n_thread);i++)
{
if(thread_info[i].entity==READER||thread_info[i].entity =='r')
{
//创建读者进程
h_Thread[i]=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)(RP_ReaderThread),&thread_info[i],0,&thread_ID);
}
else
{
//创建写线程
h_Thread[i]=CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)(RP_WriterThread),&thread_info[i],0,&thread_ID);
}
}
//等待所有的线程结束
wait_for_all=WaitForMultipleObjects(n_thread,h_Thread,TRUE,-1);
printf("All reader and writer have finished operating.\n");
}
////////////////////////////////////////////////////////
//写者优先---读者线程
//P:读者线程信息
void WP_ReaderThread(void *p)
{
//互斥变量
HANDLE h_Mutex1;
h_Mutex1=OpenMutex(MUTEX_ALL_ACCESS,FALSE,"mutex1");
HANDLE h_Mutex2;
h_Mutex2=OpenMutex(MUTEX_ALL_ACCESS,FALSE,"mutex2");
DWORD wait_for_mutex1; //等待互斥变量所有权
DWORD wait_for_mutex2;
DWORD m_delay;