简单内存映射-白红宇

简单内存映射

阅读量：6423 次

发布时间：2019-06-23

本文共 1396 字，大约阅读时间需要 4 分钟。

//process1#include 
     
      #include 
      
       using namespace std;int main(){	cout << "server" << endl;	HANDLE hEvent;	HANDLE hFileMap = NULL;	char *p = '\0';	hEvent = CreateEvent(NULL, false, false, "MyEvent");	if(hEvent == NULL)	{		printf("createEvent failed\n");		return 0;	}	hFileMap = CreateFileMapping(INVALID_HANDLE_VALUE,NULL,PAGE_READWRITE,0,BUFSIZ,"haha");	if(hFileMap == NULL)	{		cout << "hFileMap create wrong" << endl;		return 0;	}	p = (char*)MapViewOfFile(hFileMap,FILE_MAP_READ|FILE_MAP_WRITE,0,0,0);	if(p == NULL)	{		cout << "p create wrong" << endl;		return 0;	}	cin >> p;	UnmapViewOfFile(p);	CloseHandle(hFileMap);	SetEvent(hEvent);	CloseHandle(hEvent);	return 0;}//process2#include 
       
        #include 
        
         using namespace std;int main(){	HANDLE hEvent;	HANDLE hFilemap = NULL;	char *p;	hEvent = CreateEvent(NULL, false, false, "MyEvent");	if(hEvent == NULL)	{		return 0;	}	hFilemap = CreateFileMapping(INVALID_HANDLE_VALUE,NULL,PAGE_READWRITE,0,BUFSIZ,"haha");	if(hFilemap == NULL)	{		cout << "hFileMap create failed" << endl;		return 0;	}	p = (char*)MapViewOfFile(hFilemap,FILE_MAP_READ|FILE_MAP_WRITE,0,0,0);	WaitForSingleObject(hEvent, INFINITE);	cout << p << endl;	UnmapViewOfFile(p);	CloseHandle(hFilemap);	CloseHandle(hEvent);	getchar();	return 0;}