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/* -*- 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);
}
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