src/Device/Driver/FLARM/Settings.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 "Device.hpp"
  25 #include "Device/Internal.hpp"
  26 #include "NMEA/Derived.hpp"
  27
  28 #include <stdio.h>
  29
  30 #ifdef _UNICODE
  31 #include <windows.h>
  32 #endif
  33
  34 bool
  35 FlarmDevice::SendSetting(const char *name, const char *value,
  36                          OperationEnvironment &env)
  37 {
  38   assert(name != NULL);
  39   assert(value != NULL);
  40
  41   /* erase the old value from the settings map, because we expect to
  42      receive the new one now */
  43   settings.Lock();
  44   settings.erase(name);
  45   settings.Unlock();
  46
  47   char buffer[64];
  48   sprintf(buffer, "PFLAC,S,%s,%s", name, value);
  49   return PortWriteNMEA(port, buffer, env);
  50 }
  51
  52 bool
  53 FlarmDevice::RequestSetting(const char *name, OperationEnvironment &env)
  54 {
  55   char buffer[64];
  56   sprintf(buffer, "PFLAC,R,%s", name);
  57   return PortWriteNMEA(port, buffer, env);
  58 }
  59
  60 std::pair<bool, std::string>
  61 FlarmDevice::GetSetting(const char *name) const
  62 {
  63   ScopeLock protect(settings);
  64   auto i = settings.find(name);
  65   if (i == settings.end())
  66     return std::make_pair(false, std::string());
  67
  68   return std::make_pair(true, *i);
  69 }