#include
#include
#include
using?namespace?std;
#define?random?（rand（）*10000）/RAND_MAX

int?count=0;?//用于記錄當(dāng)前讀者數(shù)量

DWORD?a;?

HANDLE?rw=CreateSemaphore（NULL11“rw“）;????????//保證讀者和寫者互斥訪問
HANDLE?w=CreateSemaphore（NULL11“w“）;??????????//用于實(shí)現(xiàn)“寫優(yōu)先”
HANDLE?mutex=CreateMutex（NULLFALSE“mutex“）;????//用于保護(hù)更新count變量的互斥



void?reading（）
{???Sleep（10）;
	cout<<“The?reader?begin?reading.“<	Sleep（10000）;

}

void?writing（）
{???Sleep（10）;
	cout<<“The?writer?begin?writing.“<	Sleep（10000）;

}

DWORD?WINAPI?Threadwriter（LPVOID?lpParam）
{???????while（1）{
	???
		WaitForSingleobject（wINFINITE）;??????//在無寫進(jìn)程請(qǐng)求時(shí)進(jìn)入
		WaitForSingleobject（rwINFINITE）;?????//互斥訪問共享文件
		writing（）;????????????????????????????//寫入
		
????????
		Re

?屬性????????????大小?????日期????時(shí)間???名稱
-----------?---------??----------?-----??----

?????文件?????249931??2011-12-30?11:54??Task?3.2-Reader?and?Writer\Debug\reader&write.exe

?????文件?????373116??2011-12-30?11:54??Task?3.2-Reader?and?Writer\Debug\reader&write.ilk

?????文件??????53169??2011-12-30?11:54??Task?3.2-Reader?and?Writer\Debug\reader&write.obj

?????文件????5316280??2011-12-30?11:51??Task?3.2-Reader?and?Writer\Debug\reader&write.pch

?????文件?????574464??2011-12-30?11:54??Task?3.2-Reader?and?Writer\Debug\reader&write.pdb

?????文件?????189440??2011-12-30?11:54??Task?3.2-Reader?and?Writer\Debug\vc60.idb

?????文件?????143360??2011-12-30?11:54??Task?3.2-Reader?and?Writer\Debug\vc60.pdb

?????文件???????2076??2011-12-30?11:54??Task?3.2-Reader?and?Writer\reader&write.cpp

?????文件???????3475??2011-12-30?11:37??Task?3.2-Reader?and?Writer\reader&write.dsp

?????文件????????532??2011-12-30?11:55??Task?3.2-Reader?and?Writer\reader&write.dsw

?????文件??????33792??2011-12-30?11:55??Task?3.2-Reader?and?Writer\reader&write.ncb

?????文件??????48640??2011-12-30?11:55??Task?3.2-Reader?and?Writer\reader&write.opt

?????文件????????784??2011-12-30?11:54??Task?3.2-Reader?and?Writer\reader&write.plg

?????目錄??????????0??2011-12-30?11:54??Task?3.2-Reader?and?Writer\Debug

?????目錄??????????0??2011-12-30?11:55??Task?3.2-Reader?and?Writer

-----------?---------??----------?-----??----

??????????????6989059????????????????????15