/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ /* ***** BEGIN LICENSE BLOCK ***** * Version: MPL 1.1/GPL 2.0/LGPL 2.1 * * The contents of this file are subject to the Mozilla Public License Version * 1.1 (the "License"); you may not use this file except in compliance with * the License. You may obtain a copy of the License at * http://www.mozilla.org/MPL/ * * Software distributed under the License is distributed on an "AS IS" basis, * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License * for the specific language governing rights and limitations under the * License. * * The Original Code is the Netscape Portable Runtime (NSPR). * * The Initial Developer of the Original Code is * Netscape Communications Corporation. * Portions created by the Initial Developer are Copyright (C) 1998-2000 * the Initial Developer. All Rights Reserved. * * Contributor(s): * * Alternatively, the contents of this file may be used under the terms of * either the GNU General Public License Version 2 or later (the "GPL"), or * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), * in which case the provisions of the GPL or the LGPL are applicable instead * of those above. If you wish to allow use of your version of this file only * under the terms of either the GPL or the LGPL, and not to allow others to * use your version of this file under the terms of the MPL, indicate your * decision by deleting the provisions above and replace them with the notice * and other provisions required by the GPL or the LGPL. If you do not delete * the provisions above, a recipient may use your version of this file under * the terms of any one of the MPL, the GPL or the LGPL. * * ***** END LICENSE BLOCK ***** */ /* ********************************************************************* * * Memory-mapped files * ********************************************************************* */ #include "primpl.h" PR_IMPLEMENT(PRFileMap *) PR_CreateFileMap( PRFileDesc *fd, PRInt64 size, PRFileMapProtect prot) { PRFileMap *fmap; PR_ASSERT(prot == PR_PROT_READONLY || prot == PR_PROT_READWRITE || prot == PR_PROT_WRITECOPY); fmap = PR_NEWZAP(PRFileMap); if (NULL == fmap) { PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0); return NULL; } fmap->fd = fd; fmap->prot = prot; if (_PR_MD_CREATE_FILE_MAP(fmap, size) == PR_SUCCESS) { return fmap; } else { PR_DELETE(fmap); return NULL; } } PR_IMPLEMENT(PRInt32) PR_GetMemMapAlignment(void) { return _PR_MD_GET_MEM_MAP_ALIGNMENT(); } PR_IMPLEMENT(void *) PR_MemMap( PRFileMap *fmap, PROffset64 offset, PRUint32 len) { return _PR_MD_MEM_MAP(fmap, offset, len); } PR_IMPLEMENT(PRStatus) PR_MemUnmap(void *addr, PRUint32 len) { return _PR_MD_MEM_UNMAP(addr, len); } PR_IMPLEMENT(PRStatus) PR_CloseFileMap(PRFileMap *fmap) { return _PR_MD_CLOSE_FILE_MAP(fmap); }