зеркало из https://github.com/mozilla/pjs.git
153 строки
5.1 KiB
C++
153 строки
5.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
|
|
/* ***** BEGIN LICENSE BLOCK *****
|
|
* Version: NPL 1.1/GPL 2.0/LGPL 2.1
|
|
*
|
|
* The contents of this file are subject to the Netscape 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/NPL/
|
|
*
|
|
* 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 mozilla.org code.
|
|
*
|
|
* The Initial Developer of the Original Code is
|
|
* Netscape Communications Corporation.
|
|
* Portions created by the Initial Developer are Copyright (C) 1998
|
|
* 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 NPL, 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 NPL, the GPL or the LGPL.
|
|
*
|
|
* ***** END LICENSE BLOCK ***** */
|
|
|
|
// First checked in on 98/12/08 by John R. McMullen.
|
|
// Since nsFileStream.h is entirely templates, common code (such as open())
|
|
// which does not actually depend on the charT, can be placed here.
|
|
|
|
#ifdef XP_UNIX
|
|
// Compile the un-inlined functions in this file only.
|
|
#define DEFINING_FILE_STREAM
|
|
#endif
|
|
|
|
#include "nsStdFileStream.h"
|
|
|
|
#ifdef XP_MAC
|
|
#include <Errors.h>
|
|
#endif
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
PRFileDesc* nsFileStreamHelpers::open(
|
|
const nsFilePath& inFile,
|
|
IOS_BASE::openmode mode,
|
|
PRIntn accessMode)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
PRFileDesc* descriptor = 0;
|
|
const IOS_BASE::openmode valid_modes[]=
|
|
{
|
|
IOS_BASE::out,
|
|
IOS_BASE::out | IOS_BASE::app,
|
|
IOS_BASE::out | IOS_BASE::trunc,
|
|
IOS_BASE::in,
|
|
IOS_BASE::in | IOS_BASE::out,
|
|
IOS_BASE::in | IOS_BASE::out | IOS_BASE::trunc,
|
|
// IOS_BASE::out | IOS_BASE::binary,
|
|
// IOS_BASE::out | IOS_BASE::app | IOS_BASE::binary,
|
|
// IOS_BASE::out | IOS_BASE::trunc | IOS_BASE::binary,
|
|
// IOS_BASE::in | IOS_BASE::binary,
|
|
// IOS_BASE::in | IOS_BASE::out | IOS_BASE::binary,
|
|
// IOS_BASE::in | IOS_BASE::out | IOS_BASE::trunc | IOS_BASE::binary,
|
|
0
|
|
};
|
|
|
|
const int nspr_modes[]={
|
|
PR_WRONLY | PR_CREATE_FILE,
|
|
PR_WRONLY | PR_CREATE_FILE | PR_APPEND,
|
|
PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE,
|
|
PR_RDONLY,
|
|
PR_RDONLY | PR_APPEND,
|
|
PR_RDWR | PR_CREATE_FILE,
|
|
PR_RDWR | PR_CREATE_FILE | PR_TRUNCATE,
|
|
// "wb",
|
|
// "ab",
|
|
// "wb",
|
|
// "rb",
|
|
// "r+b",
|
|
// "w+b",
|
|
0 };
|
|
int ind=0;
|
|
while (valid_modes[ind] && valid_modes[ind] != (mode&~IOS_BASE::ate))
|
|
++ind;
|
|
if (!nspr_modes[ind])
|
|
return 0;
|
|
|
|
#ifdef XP_MAC
|
|
// Use the file spec to open the file, because one path can be common to
|
|
// several files on the Macintosh (you can have several volumes with the
|
|
// same name, see).
|
|
descriptor = 0;
|
|
if (inFile.GetNativeSpec().Error() != noErr)
|
|
return 0;
|
|
OSErr err = noErr;
|
|
#if DEBUG
|
|
const OSType kCreator = 'CWIE';
|
|
#else
|
|
const OSType kCreator = 'MOSS';
|
|
#endif
|
|
nsNativeFileSpec nativeSpec = inFile.GetNativeSpec();
|
|
FSSpec* spec = (FSSpec*)nativeSpec;
|
|
if (nspr_modes[ind] & PR_CREATE_FILE)
|
|
err = FSpCreate(spec, kCreator, 'TEXT', 0);
|
|
if (err == dupFNErr)
|
|
err = noErr;
|
|
if (err != noErr)
|
|
return 0;
|
|
|
|
SInt8 perm;
|
|
if (nspr_modes[ind] & PR_RDWR)
|
|
perm = fsRdWrPerm;
|
|
else if (nspr_modes[ind] & PR_WRONLY)
|
|
perm = fsWrPerm;
|
|
else
|
|
perm = fsRdPerm;
|
|
|
|
short refnum;
|
|
err = FSpOpenDF(spec, perm, &refnum);
|
|
|
|
if (err == noErr && (nspr_modes[ind] & PR_TRUNCATE))
|
|
err = SetEOF(refnum, 0);
|
|
if (err == noErr && (nspr_modes[ind] & PR_APPEND))
|
|
err = SetFPos(refnum, fsFromLEOF, 0);
|
|
if (err != noErr)
|
|
return 0;
|
|
|
|
if ((descriptor = PR_ImportFile(refnum)) == 0)
|
|
return 0;
|
|
#else
|
|
// Platforms other than Macintosh...
|
|
if ((descriptor = PR_Open(inFile, nspr_modes[ind], accessMode)) != 0)
|
|
#endif
|
|
if (mode&IOS_BASE::ate && PR_Seek(descriptor, 0, PR_SEEK_END) >= 0)
|
|
{
|
|
PR_Close(descriptor);
|
|
descriptor = 0;
|
|
return 0;
|
|
}
|
|
return descriptor;
|
|
} // nsFileStreamHelpers::open
|