两进程间共享内存通讯

#include <windows.h> #include <stdlib.h> #include <stdio.h> int main(void) { HANDLE hFileMap; HANDLE hEvent; LPBYTE pcMap; hEvent = CreateEvent(NULL, false, false, "MyEvent"); if(hEvent == NULL) { printf("createEvent failed\n"); return 0; } hFileMap = CreateFileMapping((HANDLE)0xffffffff, NULL, PAGE_READWRITE, 0, 4 * 1024, "MyShareData"); if(hFileMap == NULL) { printf("createfilemapping failed\n"); return 0; } pcMap = (LPBYTE)MapViewOfFile(hFileMap, FILE_MAP_READ|FILE_MAP_WRITE, 0, 0, 0); if(pcMap == NULL) { printf("MapViewOfFile failed\n"); CloseHandle(hFileMap); return 0; } printf("begin write\n"); int i; for(i = 0; i < 26; i++) { pcMap[i] = 'a' + i; } pcMap[i] = 0; UnmapViewOfFile(pcMap); CloseHandle(hFileMap); SetEvent(hEvent); CloseHandle(hEvent); return 1; }