1998-12-09 01:43:57 +03:00
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*-
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*
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1999-11-06 06:43:54 +03:00
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* The contents of this file are subject to the Netscape Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/NPL/
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1998-12-09 01:43:57 +03:00
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*
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1999-11-06 06:43:54 +03:00
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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1998-12-09 01:43:57 +03:00
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*
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1999-11-06 06:43:54 +03:00
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* The Original Code is mozilla.org code.
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*
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* The Initial Developer of the Original Code is Netscape
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1998-12-09 01:43:57 +03:00
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* Communications Corporation. Portions created by Netscape are
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1999-11-06 06:43:54 +03:00
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* Copyright (C) 1998 Netscape Communications Corporation. All
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* Rights Reserved.
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*
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* Contributor(s):
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1998-12-09 01:43:57 +03:00
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*/
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// First checked in on 98/12/08 by John R. McMullen.
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// Since nsFileStream.h is entirely templates, common code (such as open())
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1998-12-16 01:45:09 +03:00
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// which does not actually depend on the charT, can be placed here.
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1998-12-09 01:43:57 +03:00
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#include "nsFileStream.h"
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1999-05-26 05:38:36 +04:00
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#include "nsFileSpec.h"
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1999-06-15 02:04:27 +04:00
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#include "nsIFileSpec.h"
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1999-03-06 01:53:56 +03:00
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#include "nsIStringStream.h"
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1999-02-25 23:49:47 +03:00
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1998-12-19 02:06:54 +03:00
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#include <string.h>
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#include <stdio.h>
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1998-12-09 01:43:57 +03:00
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1998-12-19 02:06:54 +03:00
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//========================================================================================
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1999-02-25 23:49:47 +03:00
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// nsInputStream
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1998-12-19 02:06:54 +03:00
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//========================================================================================
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1998-12-09 01:43:57 +03:00
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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nsInputStream::~nsInputStream()
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1998-12-09 01:43:57 +03:00
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//----------------------------------------------------------------------------------------
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{
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1998-12-19 02:06:54 +03:00
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}
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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char nsInputStream::get()
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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1999-02-25 23:49:47 +03:00
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char c;
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1999-04-08 21:31:00 +04:00
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if (read(&c, sizeof(c)) == sizeof(c))
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return c;
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return 0;
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1998-12-19 02:06:54 +03:00
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}
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1999-03-06 01:53:56 +03:00
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//----------------------------------------------------------------------------------------
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PRInt32 nsInputStream::read(void* s, PRInt32 n)
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//----------------------------------------------------------------------------------------
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{
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if (!mInputStream)
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return 0;
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PRInt32 result = 0;
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mInputStream->Read((char*)s, n, (PRUint32*)&result);
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2000-02-11 03:50:58 +03:00
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if (result == 0)
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1999-03-06 01:53:56 +03:00
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set_at_eof(PR_TRUE);
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return result;
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} // nsInputStream::read
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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static void TidyEndOfLine(char*& cp)
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// Assumes that cp is pointing at \n or \r. Nulls out the character, checks for
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// a second terminator (of the opposite persuasion), and returns cp pointing past the
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// entire eol construct (one or two characters).
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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1999-02-25 23:49:47 +03:00
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char ch = *cp;
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*cp++ = '\0'; // terminate at the newline, then skip past it
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if ((ch == '\n' && *cp == '\r') || (ch == '\r' && *cp == '\n'))
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cp++; // possibly a pair.
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1998-12-19 02:06:54 +03:00
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}
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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nsInputStream& nsInputStream::operator >> (char& c)
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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1999-02-25 23:49:47 +03:00
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c = get();
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1998-12-19 02:06:54 +03:00
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return *this;
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}
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//========================================================================================
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1999-02-25 23:49:47 +03:00
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// nsOutputStream
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1998-12-19 02:06:54 +03:00
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//========================================================================================
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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nsOutputStream::~nsOutputStream()
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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}
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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void nsOutputStream::put(char c)
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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write(&c, sizeof(c));
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}
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1999-03-06 01:53:56 +03:00
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//----------------------------------------------------------------------------------------
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PRInt32 nsOutputStream::write(const void* s, PRInt32 n)
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//----------------------------------------------------------------------------------------
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{
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if (!mOutputStream)
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return 0;
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PRInt32 result = 0;
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mOutputStream->Write((char*)s, n, (PRUint32*)&result);
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return result;
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} // nsOutputStream::write
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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void nsOutputStream::flush()
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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}
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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nsOutputStream& nsOutputStream::operator << (char c)
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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put(c);
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return *this;
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}
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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nsOutputStream& nsOutputStream::operator << (const char* s)
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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1999-06-10 06:24:21 +04:00
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if (s)
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write(s, strlen(s));
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1998-12-19 02:06:54 +03:00
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return *this;
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}
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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nsOutputStream& nsOutputStream::operator << (short val)
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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char buf[30];
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1999-03-10 23:56:38 +03:00
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sprintf(buf, "%hd", val);
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1999-02-25 23:49:47 +03:00
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return (*this << buf);
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1998-12-19 02:06:54 +03:00
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}
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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nsOutputStream& nsOutputStream::operator << (unsigned short val)
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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char buf[30];
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1999-03-10 23:56:38 +03:00
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sprintf(buf, "%hu", val);
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1999-02-25 23:49:47 +03:00
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return (*this << buf);
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1998-12-19 02:06:54 +03:00
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}
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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nsOutputStream& nsOutputStream::operator << (long val)
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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char buf[30];
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sprintf(buf, "%ld", val);
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1999-02-25 23:49:47 +03:00
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return (*this << buf);
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1998-12-19 02:06:54 +03:00
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}
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//----------------------------------------------------------------------------------------
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1999-02-25 23:49:47 +03:00
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nsOutputStream& nsOutputStream::operator << (unsigned long val)
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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char buf[30];
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1999-03-10 23:56:38 +03:00
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sprintf(buf, "%lu", val);
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return (*this << buf);
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}
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//----------------------------------------------------------------------------------------
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nsOutputStream& nsOutputStream::operator << (int val)
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//----------------------------------------------------------------------------------------
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{
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char buf[30];
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sprintf(buf, "%d", val);
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return (*this << buf);
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}
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//----------------------------------------------------------------------------------------
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nsOutputStream& nsOutputStream::operator << (unsigned int val)
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//----------------------------------------------------------------------------------------
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{
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char buf[30];
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sprintf(buf, "%u", val);
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1999-02-25 23:49:47 +03:00
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return (*this << buf);
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1998-12-19 02:06:54 +03:00
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}
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1999-02-25 23:49:47 +03:00
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//========================================================================================
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1999-03-06 01:53:56 +03:00
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// nsRandomAccessInputStream
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1999-02-25 23:49:47 +03:00
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//========================================================================================
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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1999-03-06 01:53:56 +03:00
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PRBool nsRandomAccessInputStream::readline(char* s, PRInt32 n)
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1999-02-25 23:49:47 +03:00
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// This will truncate if the buffer is too small. Result will always be null-terminated.
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1998-12-19 02:06:54 +03:00
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//----------------------------------------------------------------------------------------
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{
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1999-02-25 23:49:47 +03:00
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PRBool bufferLargeEnough = PR_TRUE; // result
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if (!s || !n)
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return PR_TRUE;
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PRIntn position = tell();
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if (position < 0)
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return PR_FALSE;
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PRInt32 bytesRead = read(s, n - 1);
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if (failed())
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return PR_FALSE;
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s[bytesRead] = '\0'; // always terminate at the end of the buffer
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char* tp = strpbrk(s, "\n\r");
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if (tp)
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1998-12-19 02:06:54 +03:00
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{
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1999-02-25 23:49:47 +03:00
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TidyEndOfLine(tp);
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bytesRead = (tp - s);
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1998-12-19 02:06:54 +03:00
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}
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2000-10-13 15:14:48 +04:00
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else if (!eof() && n-1 == bytesRead)
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1999-02-25 23:49:47 +03:00
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bufferLargeEnough = PR_FALSE;
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position += bytesRead;
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seek(position);
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return bufferLargeEnough;
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1999-03-06 01:53:56 +03:00
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} // nsRandomAccessInputStream::readline
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//========================================================================================
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// nsInputStringStream
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//========================================================================================
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//----------------------------------------------------------------------------------------
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nsInputStringStream::nsInputStringStream(const char* stringToRead)
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//----------------------------------------------------------------------------------------
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{
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nsISupports* stream;
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if (NS_FAILED(NS_NewCharInputStream(&stream, stringToRead)))
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return;
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1999-10-31 03:32:15 +03:00
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mInputStream = do_QueryInterface(stream);
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mStore = do_QueryInterface(stream);
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1999-03-06 01:53:56 +03:00
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NS_RELEASE(stream);
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}
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//----------------------------------------------------------------------------------------
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nsInputStringStream::nsInputStringStream(const nsString& stringToRead)
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//----------------------------------------------------------------------------------------
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{
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nsISupports* stream;
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if (NS_FAILED(NS_NewStringInputStream(&stream, stringToRead)))
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return;
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1999-10-31 03:32:15 +03:00
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mInputStream = do_QueryInterface(stream);
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mStore = do_QueryInterface(stream);
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1999-03-06 01:53:56 +03:00
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NS_RELEASE(stream);
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}
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//========================================================================================
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// nsOutputStringStream
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//========================================================================================
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//----------------------------------------------------------------------------------------
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nsOutputStringStream::nsOutputStringStream(char*& stringToChange)
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//----------------------------------------------------------------------------------------
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{
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nsISupports* stream;
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if (NS_FAILED(NS_NewCharOutputStream(&stream, &stringToChange)))
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return;
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1999-10-31 03:32:15 +03:00
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mOutputStream = do_QueryInterface(stream);
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mStore = do_QueryInterface(stream);
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1999-03-06 01:53:56 +03:00
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NS_RELEASE(stream);
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}
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//----------------------------------------------------------------------------------------
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nsOutputStringStream::nsOutputStringStream(nsString& stringToChange)
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//----------------------------------------------------------------------------------------
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{
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nsISupports* stream;
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if (NS_FAILED(NS_NewStringOutputStream(&stream, stringToChange)))
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|
return;
|
1999-10-31 03:32:15 +03:00
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mOutputStream = do_QueryInterface(stream);
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mStore = do_QueryInterface(stream);
|
1999-03-06 01:53:56 +03:00
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NS_RELEASE(stream);
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}
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//========================================================================================
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// nsInputFileStream
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//========================================================================================
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//----------------------------------------------------------------------------------------
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nsInputFileStream::nsInputFileStream(
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const nsFileSpec& inFile,
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|
int nsprMode,
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|
PRIntn accessMode)
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|
|
//----------------------------------------------------------------------------------------
|
|
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|
{
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|
nsISupports* stream;
|
|
|
|
if (NS_FAILED(NS_NewIOFileStream(&stream, inFile, nsprMode, accessMode)))
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|
return;
|
1999-06-15 02:04:27 +04:00
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|
|
AssignFrom(stream);
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|
NS_RELEASE(stream);
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|
|
} // nsInputFileStream::nsInputFileStream
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|
//----------------------------------------------------------------------------------------
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|
nsInputFileStream::nsInputFileStream(nsIFileSpec* inSpec)
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|
|
//----------------------------------------------------------------------------------------
|
|
|
|
{
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|
|
|
nsIInputStream* stream;
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|
|
|
if (NS_FAILED(inSpec->GetInputStream(&stream)))
|
|
|
|
return;
|
|
|
|
AssignFrom(stream);
|
|
|
|
NS_RELEASE(stream);
|
|
|
|
} // nsInputFileStream::nsInputFileStream
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|
//----------------------------------------------------------------------------------------
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|
|
void nsInputFileStream::AssignFrom(nsISupports* stream)
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
{
|
1999-10-31 03:32:15 +03:00
|
|
|
mFile = do_QueryInterface(stream);
|
|
|
|
mInputStream = do_QueryInterface(stream);
|
|
|
|
mStore = do_QueryInterface(stream);
|
|
|
|
mFileInputStream = do_QueryInterface(stream);
|
1999-06-15 02:04:27 +04:00
|
|
|
}
|
1999-01-27 02:49:33 +03:00
|
|
|
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|
|
|
//========================================================================================
|
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|
|
// nsOutputFileStream
|
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|
//========================================================================================
|
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|
1999-06-15 02:04:27 +04:00
|
|
|
//----------------------------------------------------------------------------------------
|
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|
|
nsOutputFileStream::nsOutputFileStream(nsIFileSpec* inSpec)
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
{
|
1999-06-15 13:31:49 +04:00
|
|
|
if (!inSpec)
|
|
|
|
return;
|
1999-06-15 02:04:27 +04:00
|
|
|
nsIOutputStream* stream;
|
|
|
|
if (NS_FAILED(inSpec->GetOutputStream(&stream)))
|
|
|
|
return;
|
|
|
|
AssignFrom(stream);
|
|
|
|
NS_RELEASE(stream);
|
|
|
|
}
|
|
|
|
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
void nsOutputFileStream::AssignFrom(nsISupports* stream)
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
{
|
1999-10-31 03:32:15 +03:00
|
|
|
mFile = do_QueryInterface(stream);
|
|
|
|
mOutputStream = do_QueryInterface(stream);
|
|
|
|
mStore = do_QueryInterface(stream);
|
|
|
|
mFileOutputStream = do_QueryInterface(stream);
|
1999-06-15 02:04:27 +04:00
|
|
|
}
|
|
|
|
|
1999-01-27 02:49:33 +03:00
|
|
|
//----------------------------------------------------------------------------------------
|
1999-02-25 23:49:47 +03:00
|
|
|
void nsOutputFileStream::flush()
|
1999-01-27 02:49:33 +03:00
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
{
|
1999-02-25 23:49:47 +03:00
|
|
|
if (mFileOutputStream)
|
|
|
|
mFileOutputStream->Flush();
|
1999-01-27 02:49:33 +03:00
|
|
|
}
|
1998-12-19 02:06:54 +03:00
|
|
|
|
1999-05-26 05:38:36 +04:00
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
void nsOutputFileStream::abort()
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
{
|
|
|
|
mResult = NS_FILE_FAILURE;
|
|
|
|
close();
|
|
|
|
}
|
|
|
|
|
|
|
|
//========================================================================================
|
|
|
|
// nsSaveViaTempStream
|
|
|
|
//========================================================================================
|
|
|
|
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
nsSaveViaTempStream::nsSaveViaTempStream(const nsFileSpec& inFileToSave)
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
: mFileToSave(inFileToSave)
|
|
|
|
, mTempFileSpec(new nsFileSpec(inFileToSave))
|
|
|
|
{
|
|
|
|
// Make sure the temp file's unique (in particular, different from the target file)
|
|
|
|
mTempFileSpec->MakeUnique();
|
2000-07-22 02:16:18 +04:00
|
|
|
open(*mTempFileSpec, (PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE), 0666);
|
1999-05-26 05:38:36 +04:00
|
|
|
} // nsSaveViaTempStream::nsSaveViaTempStream
|
|
|
|
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
void nsSaveViaTempStream::close()
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
{
|
|
|
|
if (!mTempFileSpec)
|
|
|
|
return;
|
|
|
|
nsresult currentResult = mResult;
|
|
|
|
Inherited::close();
|
|
|
|
mResult = currentResult;
|
|
|
|
if (error())
|
|
|
|
{
|
|
|
|
mTempFileSpec->Delete(PR_FALSE);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
nsFileSpec thirdSpec(mFileToSave);
|
|
|
|
thirdSpec.MakeUnique();
|
|
|
|
nsSimpleCharString originalName(mFileToSave.GetLeafName());
|
|
|
|
((nsFileSpec&)mFileToSave).Rename(nsSimpleCharString(thirdSpec.GetLeafName()));
|
|
|
|
if (NS_SUCCEEDED(mTempFileSpec->Rename(originalName)) && mTempFileSpec->Valid())
|
|
|
|
mFileToSave.Delete(PR_FALSE);
|
|
|
|
}
|
|
|
|
delete mTempFileSpec;
|
|
|
|
} // nsSaveViaTempStream::~nsSaveViaTempStream
|
|
|
|
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
nsSaveViaTempStream::~nsSaveViaTempStream()
|
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
{
|
|
|
|
delete mTempFileSpec;
|
|
|
|
} // nsSaveViaTempStream::~nsSaveViaTempStream
|
|
|
|
|
1998-12-19 02:06:54 +03:00
|
|
|
//========================================================================================
|
|
|
|
// Manipulators
|
|
|
|
//========================================================================================
|
|
|
|
|
|
|
|
//----------------------------------------------------------------------------------------
|
1999-02-25 23:49:47 +03:00
|
|
|
nsOutputStream& nsEndl(nsOutputStream& os)
|
1998-12-19 02:06:54 +03:00
|
|
|
//----------------------------------------------------------------------------------------
|
|
|
|
{
|
2000-11-29 02:27:38 +03:00
|
|
|
#if defined(XP_WIN) || defined(XP_OS2)
|
1999-04-28 01:26:15 +04:00
|
|
|
os.write("\r\n", 2);
|
1999-10-05 07:00:13 +04:00
|
|
|
#elif defined (XP_MAC)
|
|
|
|
os.put('\r');
|
1999-04-28 01:26:15 +04:00
|
|
|
#else
|
1999-02-25 23:49:47 +03:00
|
|
|
os.put('\n');
|
1999-04-28 01:26:15 +04:00
|
|
|
#endif
|
1999-10-05 07:00:13 +04:00
|
|
|
//os.flush();
|
1999-02-25 23:49:47 +03:00
|
|
|
return os;
|
1999-03-20 05:34:54 +03:00
|
|
|
} // nsEndl
|