src/thread/thread_none.cpp

   1 /* $Id$ */
   2
   3 /*
   4  * This file is part of OpenTTD.
   5  * OpenTTD is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2.
   6  * OpenTTD is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
   7  * See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with OpenTTD. If not, see <http://www.gnu.org/licenses/>.
   8  */
   9
  10 /** @file thread_none.cpp No-Threads-Available implementation of Threads */
  11
  12 #include "../stdafx.h"
  13 #include "thread.h"
  14
  15 #include "../safeguards.h"
  16
  17 /* static */ bool ThreadObject::New(OTTDThreadFunc proc, void *param, ThreadObject **thread, const char *name)
  18 {
  19         if (thread != NULL) *thread = NULL;
  20         return false;
  21 }
  22
  23 /** Mutex that doesn't do locking because it ain't needed when there're no threads */
  24 class ThreadMutex_None : public ThreadMutex {
  25 public:
  26         virtual void BeginCritical(bool allow_recursive = false) {}
  27         virtual void EndCritical(bool allow_recursive = false) {}
  28         virtual void WaitForSignal() {}
  29         virtual void SendSignal() {}
  30 };
  31
  32 /* static */ ThreadMutex *ThreadMutex::New()
  33 {
  34         return new ThreadMutex_None();
  35 }