src/Protection.hpp

   1 /*
   2 Copyright_License {
   3
   4   XCSoar Glide Computer - http://www.xcsoar.org/
   5   Copyright (C) 2000-2012 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 #ifndef XCSOAR_PROTECTION_HPP
  25 #define XCSOAR_PROTECTION_HPP
  26
  27 #include "Thread/Flag.hpp"
  28 #include "Thread/Mutex.hpp"
  29
  30 /**
  31  * Notify the #MergeThread that new data has arrived in the
  32  * #DeviceBlackboard.
  33  */
  34 void
  35 TriggerMergeThread();
  36
  37 void TriggerGPSUpdate();
  38 void TriggerVarioUpdate();
  39
  40 /**
  41  * Trigger a redraw of the map window.
  42  */
  43 void
  44 TriggerMapUpdate();
  45
  46 /**
  47  * Called by the calculation thread when new calculation results are
  48  * available.  This updates the map and the info boxes.
  49  */
  50 void
  51 TriggerCalculatedUpdate();
  52
  53 void CreateCalculationThread();
  54
  55 // changed only in config or by user interface
  56 // used in settings dialog
  57 extern bool DevicePortChanged;
  58 extern bool AirspaceFileChanged;
  59 extern bool WaypointFileChanged;
  60 extern bool TerrainFileChanged;
  61 extern bool AirfieldFileChanged;
  62 extern bool TopographyFileChanged;
  63 extern bool PolarFileChanged;
  64 extern bool LanguageFileChanged;
  65 extern bool StatusFileChanged;
  66 extern bool InputFileChanged;
  67 extern bool MapFileChanged;
  68 extern bool LanguageChanged;
  69
  70 extern Flag globalRunningEvent;
  71
  72 /**
  73  * Suspend all threads which have unprotected access to shared data.
  74  * Call this before doing write operations on shared data.
  75  */
  76 void
  77 SuspendAllThreads();
  78
  79 /**
  80  * Resume all threads suspended by SuspendAllThreads().
  81  */
  82 void
  83 ResumeAllThreads();
  84
  85 class ScopeSuspendAllThreads {
  86 public:
  87   ScopeSuspendAllThreads() { SuspendAllThreads(); }
  88   ~ScopeSuspendAllThreads() { ResumeAllThreads(); }
  89 };
  90
  91 #endif
  92