讀者寫者問(wèn)題操作系統(tǒng)課程設(shè)計(jì)(參考版)
2025-03-28 12:06本頁(yè)面
【正文】 16。return true。dwThreadID)。g_NumPerson++。 = WorkTime。pPersonm_nStartTime = StartTime。pPersonm_nID = amp。return false。}bool CreateWriter(int StartTime,int WorkTime,int ID){DWORD dwThreadID。if(pPersonm_hThread == NULL)return false。// Create an New ThreadpPersonm_hThread= CreateThread(NULL,0,ReaderProc,(LPVOID)pPerson,0,amp。pPersonm_nType = READER。pPersonm_nStartTime = StartTime。g_Persons[g_NumPerson]。if(g_NumPerson = MAX_PERSON)return false。return 0。if(pPersonm_nID == 4) finished = true。//g_NumOfWriteRequest。while(g_CurrentTime = pPersonm_nStartTime + pPersonm_nWorkTime){}printf(Writer %d is Exit...\n,pPersonm_nID)。s real start timepPersonm_nStartTime = g_CurrentTime。WaitForSingleObject(g_hWriteSemaphore,INFINITE)。// wait for the start timewhile(g_CurrentTime != pPersonm_nStartTime){}printf(Writer %d is Requesting ...\n,pPersonm_nID)。}DWORD //所有的讀寫完成ExitThread(0)。//此時(shí)沒(méi)有讀者，可以寫}ReleaseSemaphore(g_hReadSemaphore,1,NULL)。g_NumOfReading。printf(\n\n************************************************\n)。printf(\n\n************************************************\n)。pPersonm_nStartTime = g_CurrentTime。 }g_NumOfReading++。// wait for the write requestWaitForSingleObject(g_hReadSemaphore,INFINITE)。// wait for the start timewhile(g_CurrentTime != pPersonm_nStartTime){ }printf(Reader %d is Requesting ...\n,pPersonm_nID)。 // move to next person list}}DWORDbreak。//351,w452,523,654break。bool Ret。int}void CreatePersonList(int *pPersonLists){intif(finished) return 0。Sleep(300)。g_CurrentTime = 0。 //創(chuàng)建信號(hào)燈，當(dāng)前可用的資源數(shù)為1，最大為100CreatePersonList(g_PersonLists)。 = CreateSemaphore(NULL,1,100,NULL)。 Writer
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