简单内存映射

//process1
#include <windows.h>
#include <iostream>
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 <windows.h>
#include <iostream>
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;
}