source/core/thread.cpp

   1 /* $Id$
   2
   3 This file is part of libmspcore
   4 Copyright © 2006 Mikko Rasa, Mikkosoft Productions
   5 Distributed under the LGPL
   6 */
   7
   8 #ifndef WIN32
   9 #include <signal.h>
  10 #endif
  11 #include "thread.h"
  12
  13 namespace Msp {
  14
  15 /**
  16 Waits for the thread to exit.  Calling this from the thread will cause a
  17 deadlock.
  18 */
  19 void Thread::join()
  20 {
  21         if(!launched_)
  22                 return;
  23
  24 #ifdef WIN32
  25         WaitForSingleObject(thread_, INFINITE);
  26 #else
  27         pthread_join(thread_, 0);
  28 #endif
  29         launched_ = false;
  30 }
  31
  32 /**
  33 Requests the thread to terminate gracefully.  Currently unimplemented on win32.
  34 */
  35 void Thread::cancel()
  36 {
  37 #ifndef WIN32 //XXX
  38         pthread_cancel(thread_);
  39 #endif
  40 }
  41
  42 /**
  43 Violently terminates the thread.
  44 */
  45 void Thread::kill()
  46 {
  47 #ifdef WIN32
  48         TerminateThread(thread_, 0);
  49 #else
  50         pthread_kill(thread_, SIGKILL);
  51 #endif
  52 }
  53
  54 Thread::~Thread()
  55 {
  56         if(launched_)
  57         {
  58                 kill();
  59                 join();
  60         }
  61 }
  62
  63 void Thread::launch()
  64 {
  65         if(launched_)
  66                 return;
  67
  68 #ifdef WIN32
  69         DWORD dummy;  // Win9x needs the lpTthreadId parameter
  70         thread_ = CreateThread(0, 0, &main_, this, 0, &dummy);
  71 #else
  72         pthread_create(&thread_, 0, &main_, this);
  73 #endif
  74         launched_ = true;
  75 }
  76
  77 } // namespace Msp