Winodws平台C++共享内存实现(万恶的CSDN)

#include ".\ShareMemServer.h" CShareMemServer::CShareMemServer(int iShareMemSize, wchar_t* pShareMemName) : m_iShareMemSize(iShareMemSize) , m_strShareMemName(pShareMemName) , m_lpMapAddress(NULL) , m_hMapFile(NULL) { } CShareMemServer::~CShareMemServer(void) { if ( m_lpMapAddress ) { UnmapViewOfFile( m_lpMapAddress ); m_lpMapAddress = NULL; } if ( m_hMapFile ) { CloseHandle( m_hMapFile ); m_hMapFile = NULL; } } void* CShareMemServer::GetAddr() { if ( NULL == m_lpMapAddress ) { if ( NULL == m_hMapFile ) { m_hMapFile = CreateFileMappingW( INVALID_HANDLE_VALUE, NULL, PAGE_READWRITE, 0, m_iShareMemSize, m_strShareMemName.c_str() ); } if (m_hMapFile) { m_lpMapAddress = MapViewOfFile( m_hMapFile, FILE_MAP_ALL_ACCESS, 0, 0, 0 ); } } return m_lpMapAddress; }