mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-12-28 11:28:38 +00:00
134 lines
4.1 KiB
C++
134 lines
4.1 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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.
|
|
*/
|
|
|
|
// 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
|