mirror of
https://github.com/mozilla/gecko-dev.git
synced 2024-11-05 00:25:27 +00:00
370 lines
13 KiB
C++
370 lines
13 KiB
C++
/* -*- Mode: C++; tab-width: 2; 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 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 of 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 ***** */
|
|
|
|
// 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.
|
|
|
|
#include "nsFileStream.h"
|
|
#include "nsFileSpec.h"
|
|
#include "nsIFileSpec.h"
|
|
#include "nsIStringStream.h"
|
|
#include "nsInt64.h"
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
|
|
|
|
//========================================================================================
|
|
// nsInputStream
|
|
//========================================================================================
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsInputStream::~nsInputStream()
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
char nsInputStream::get()
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
char c;
|
|
if (read(&c, sizeof(c)) == sizeof(c))
|
|
return c;
|
|
return 0;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
PRInt32 nsInputStream::read(void* s, PRInt32 n)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
if (!mInputStream)
|
|
return 0;
|
|
PRInt32 result = 0;
|
|
PRInt32 status = mInputStream->Read((char*)s, n, (PRUint32*)&result);
|
|
if (result == 0)
|
|
set_at_eof(PR_TRUE);
|
|
if (status < 0)
|
|
return (status);
|
|
return result;
|
|
} // nsInputStream::read
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
static void TidyEndOfLine(char*& cp)
|
|
// Assumes that cp is pointing at \n or \r. Nulls out the character, checks for
|
|
// a second terminator (of the opposite persuasion), and returns cp pointing past the
|
|
// entire eol construct (one or two characters).
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
char ch = *cp;
|
|
*cp++ = '\0'; // terminate at the newline, then skip past it
|
|
if ((ch == '\n' && *cp == '\r') || (ch == '\r' && *cp == '\n'))
|
|
cp++; // possibly a pair.
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsInputStream& nsInputStream::operator >> (char& c)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
c = get();
|
|
return *this;
|
|
}
|
|
|
|
//========================================================================================
|
|
// nsOutputStream
|
|
//========================================================================================
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream::~nsOutputStream()
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
void nsOutputStream::put(char c)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
write(&c, sizeof(c));
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
PRInt32 nsOutputStream::write(const void* s, PRInt32 n)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
if (!mOutputStream)
|
|
return 0;
|
|
PRInt32 result = 0;
|
|
mWriteStatus = mOutputStream->Write((char*)s, n, (PRUint32*)&result);
|
|
return result;
|
|
} // nsOutputStream::write
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsresult nsOutputStream::flush()
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
return NS_OK;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsresult nsOutputStream::lastWriteStatus()
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
return mWriteStatus;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream& nsOutputStream::operator << (char c)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
put(c);
|
|
return *this;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream& nsOutputStream::operator << (const char* s)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
if (s)
|
|
write(s, strlen(s));
|
|
return *this;
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream& nsOutputStream::operator << (short val)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
char buf[30];
|
|
sprintf(buf, "%hd", val);
|
|
return (*this << buf);
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream& nsOutputStream::operator << (unsigned short val)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
char buf[30];
|
|
sprintf(buf, "%hu", val);
|
|
return (*this << buf);
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream& nsOutputStream::operator << (long val)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
char buf[30];
|
|
sprintf(buf, "%ld", val);
|
|
return (*this << buf);
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream& nsOutputStream::operator << (unsigned long val)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
char buf[30];
|
|
sprintf(buf, "%lu", val);
|
|
return (*this << buf);
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream& nsOutputStream::operator << (int val)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
char buf[30];
|
|
sprintf(buf, "%d", val);
|
|
return (*this << buf);
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream& nsOutputStream::operator << (unsigned int val)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
char buf[30];
|
|
sprintf(buf, "%u", val);
|
|
return (*this << buf);
|
|
}
|
|
|
|
//========================================================================================
|
|
// nsRandomAccessInputStream
|
|
//========================================================================================
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
PRBool nsRandomAccessInputStream::readline(char* s, PRInt32 n)
|
|
// This will truncate if the buffer is too small. Result will always be null-terminated.
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
PRBool bufferLargeEnough = PR_TRUE; // result
|
|
if (!s || !n)
|
|
return PR_TRUE;
|
|
|
|
nsInt64 position = tell();
|
|
const nsInt64 zero(0);
|
|
if (position < zero)
|
|
return PR_FALSE;
|
|
PRInt32 bytesRead = read(s, n - 1);
|
|
if (failed())
|
|
return PR_FALSE;
|
|
s[bytesRead] = '\0'; // always terminate at the end of the buffer
|
|
char* tp = strpbrk(s, "\n\r");
|
|
if (tp)
|
|
{
|
|
TidyEndOfLine(tp);
|
|
bytesRead = (tp - s);
|
|
}
|
|
else if (!eof() && n-1 == bytesRead)
|
|
bufferLargeEnough = PR_FALSE;
|
|
position += bytesRead;
|
|
seek(position);
|
|
return bufferLargeEnough;
|
|
} // nsRandomAccessInputStream::readline
|
|
|
|
//========================================================================================
|
|
// nsInputFileStream
|
|
//========================================================================================
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsInputFileStream::nsInputFileStream(
|
|
const nsFileSpec& inFile,
|
|
int nsprMode,
|
|
PRIntn accessMode)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
nsISupports* stream;
|
|
if (NS_FAILED(NS_NewIOFileStream(&stream, inFile, nsprMode, accessMode)))
|
|
return;
|
|
AssignFrom(stream);
|
|
NS_RELEASE(stream);
|
|
} // nsInputFileStream::nsInputFileStream
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsInputFileStream::nsInputFileStream(nsIFileSpec* inSpec)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
nsIInputStream* stream;
|
|
if (NS_FAILED(inSpec->GetInputStream(&stream)))
|
|
return;
|
|
AssignFrom(stream);
|
|
NS_RELEASE(stream);
|
|
} // nsInputFileStream::nsInputFileStream
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsInputFileStream::~nsInputFileStream()
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
// if (is_open())
|
|
// close();
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
void nsInputFileStream::AssignFrom(nsISupports* stream)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
mFile = do_QueryInterface(stream);
|
|
mInputStream = do_QueryInterface(stream);
|
|
mStore = do_QueryInterface(stream);
|
|
mFileInputStream = do_QueryInterface(stream);
|
|
}
|
|
|
|
//========================================================================================
|
|
// nsOutputFileStream
|
|
//========================================================================================
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputFileStream::nsOutputFileStream(nsIFileSpec* inSpec)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
if (!inSpec)
|
|
return;
|
|
nsIOutputStream* stream;
|
|
if (NS_FAILED(inSpec->GetOutputStream(&stream)))
|
|
return;
|
|
AssignFrom(stream);
|
|
NS_RELEASE(stream);
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputFileStream::~nsOutputFileStream()
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
// if (is_open())
|
|
// close();
|
|
}
|
|
//----------------------------------------------------------------------------------------
|
|
void nsOutputFileStream::AssignFrom(nsISupports* stream)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
mFile = do_QueryInterface(stream);
|
|
mOutputStream = do_QueryInterface(stream);
|
|
mStore = do_QueryInterface(stream);
|
|
mFileOutputStream = do_QueryInterface(stream);
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsresult nsOutputFileStream::flush()
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
if (mFileOutputStream)
|
|
mFileOutputStream->Flush();
|
|
return error();
|
|
}
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
void nsOutputFileStream::abort()
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
mResult = NS_FILE_FAILURE;
|
|
close();
|
|
}
|
|
|
|
//========================================================================================
|
|
// Manipulators
|
|
//========================================================================================
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
nsOutputStream& nsEndl(nsOutputStream& os)
|
|
//----------------------------------------------------------------------------------------
|
|
{
|
|
#if defined(XP_WIN) || defined(XP_OS2)
|
|
os.write("\r\n", 2);
|
|
#elif defined (XP_MAC)
|
|
os.put('\r');
|
|
#else
|
|
os.put('\n');
|
|
#endif
|
|
//os.flush();
|
|
return os;
|
|
} // nsEndl
|