src/IO/BatchTextWriter.cpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2013 The XCSoar Project
   6   A detailed list of copyright holders can be found in the file "AUTHORS".
   7
   8   This program is free software; you can redistribute it and/or
   9   modify it under the terms of the GNU General Public License
  10   as published by the Free Software Foundation; either version 2
  11   of the License, or (at your option) any later version.
  12
  13   This program is distributed in the hope that it will be useful,
  14   but WITHOUT ANY WARRANTY; without even the implied warranty of
  15   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16   GNU General Public License for more details.
  17
  18   You should have received a copy of the GNU General Public License
  19   along with this program; if not, write to the Free Software
  20   Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  21 }
  22 */
  23
  24 #include "BatchTextWriter.hpp"
  25 #include "TextWriter.hpp"
  26
  27 bool
  28 BatchTextWriter::WriteLine(const char *line)
  29 {
  30   if (buffer.IsFull() && !Flush())
  31     return false;
  32
  33   buffer.Append() = line;
  34   return true;
  35 }
  36
  37 bool
  38 BatchTextWriter::Flush()
  39 {
  40   if (buffer.IsEmpty())
  41     return true;
  42
  43   TextWriter writer(path.c_str(), append);
  44   if (!writer.IsOpen())
  45     return false;
  46
  47   /* the following flush() calls will append */
  48   append = true;
  49
  50   for (unsigned i = 0; i < buffer.Length(); ++i)
  51     if (!writer.WriteLine(buffer[i].c_str()))
  52       return false;
  53
  54   buffer.Clear();
  55
  56   return true;
  57 }