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- /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
- *
- * The contents of this file are subject to the Netscape Public License
- * Version 1.0 (the "NPL"); you may not use this file except in
- * compliance with the NPL. You may obtain a copy of the NPL at
- * http://www.mozilla.org/NPL/
- *
- * Software distributed under the NPL is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the NPL
- * for the specific language governing rights and limitations under the
- * NPL.
- *
- * The Initial Developer of this code under the NPL is Netscape
- * Communications Corporation. Portions created by Netscape are
- * Copyright (C) 1998 Netscape Communications Corporation. All Rights
- * Reserved.
- */
- //
- // Necessary hooks for QA partner to access custom objects within
- // Communicator
- //
- #include <windows.h>
- #include <windowsx.h>
- #include "qahook.h"
-
- static HANDLE hSharedMemory = NULL;
- static CSharedData *pData = NULL;
-
- //
- // *open existing* shared memory chunk
- // once you have the pointer to the new segment
- // use this pointer to access data, e.g.:
- //
- // if(pData->m_dwBytesUsed > 0)
- // {
- // // use pData->m_buf here
- // }
- //
- CSharedData *
- OpenExistingSharedMemory(void)
- {
- #ifdef WIN32
-
- DWORD dwSize;
- LPCTSTR szObjectName = SHARED_MEMORY_CHUNK_NAME;
-
- if (pData != NULL)
- return pData;
-
- hSharedMemory = OpenFileMapping(
- FILE_MAP_WRITE /*PAGE_READWRITE*/,FALSE,szObjectName);
- if(hSharedMemory == 0)
- {
- return NULL;
- }
-
- pData = (CSharedData *)MapViewOfFile(
- hSharedMemory,FILE_MAP_ALL_ACCESS,0,0,0);
- if(pData == NULL)
- {
- return NULL;
- }
-
- dwSize = pData->m_dwSize;
- return pData;
- #else
- return NULL;
- #endif // WIN32
- }
-
- //
- // to close shared memory segment
- //
- void
- CloseSharedMemory(void)
- {
- #ifdef WIN32
- if (pData != 0)
- {
- UnmapViewOfFile(pData);
- pData = 0;
- }
-
- if(hSharedMemory != 0)
- {
- CloseHandle(hSharedMemory);
- hSharedMemory = 0;
- }
- #else
- return;
- #endif // WIN32
- }
-