git.sesse.net Git - vlc/blob - modules/video_filter/atmo/AtmoThread.cpp

   1 /*
   2  * AtmoThread.cpp: Base thread class for all threads inside AtmoWin
   3  *
   4  * See the README.txt file for copyright information and how to reach the author(s).
   5  *
   6  * $Id$
   7  */
   8 #include "AtmoThread.h"
   9
  10 #if defined(_ATMO_VLC_PLUGIN_)
  11
  12 CThread::CThread(vlc_object_t *pOwner)
  13 {
  14     int err;
  15     m_pAtmoThread = (atmo_thread_t *)vlc_object_create( pOwner,
  16                                                         sizeof(atmo_thread_t) );
  17     if(m_pAtmoThread)
  18     {
  19         m_pAtmoThread->p_thread = this;
  20         this->m_pOwner = pOwner;
  21
  22         vlc_object_attach( m_pAtmoThread, m_pOwner);
  23
  24         vlc_mutex_init( &m_TerminateLock );
  25         err = vlc_cond_init( &m_TerminateCond );
  26         if(err) {
  27            msg_Err( m_pAtmoThread, "vlc_cond_init failed %d",err);
  28         }
  29     }
  30 }
  31
  32 #else
  33
  34 CThread::CThread(void)
  35 {
  36   m_hThread = CreateThread(NULL, 0, CThread::ThreadProc ,
  37                            this, CREATE_SUSPENDED, &m_dwThreadID);
  38   m_hTerminateEvent = CreateEvent(NULL,ATMO_FALSE,ATMO_FALSE,NULL);
  39 }
  40
  41 #endif
  42
  43
  44
  45 #if defined(_ATMO_VLC_PLUGIN_)
  46
  47 CThread::~CThread(void)
  48 {
  49   if(m_pAtmoThread)
  50   {
  51       vlc_mutex_destroy( &m_TerminateLock );
  52       vlc_cond_destroy( &m_TerminateCond );
  53       vlc_object_detach(m_pAtmoThread);
  54       vlc_object_release(m_pAtmoThread);
  55   }
  56 }
  57
  58 #else
  59
  60 CThread::~CThread(void)
  61 {
  62   CloseHandle(m_hThread);
  63   CloseHandle(m_hTerminateEvent);
  64 }
  65
  66 #endif
  67
  68 #if defined(_ATMO_VLC_PLUGIN_)
  69
  70 void *CThread::ThreadProc(vlc_object_t *obj)
  71 {
  72       atmo_thread_t *pAtmoThread = (atmo_thread_t *)obj;
  73       CThread *pThread = (CThread *)pAtmoThread->p_thread;
  74       if(pThread) {
  75          int canc;
  76
  77          canc = vlc_savecancel ();
  78          pThread->Execute();
  79          vlc_restorecancel (canc);
  80       }
  81       return NULL;
  82 }
  83
  84 #else
  85
  86 DWORD WINAPI CThread::ThreadProc(LPVOID lpParameter)
  87 {
  88            CThread *aThread = (CThread *)lpParameter;
  89            if(aThread)
  90               return aThread->Execute();
  91            else
  92                   return (DWORD)-1;
  93 }
  94
  95 #endif
  96
  97
  98 DWORD CThread::Execute(void)
  99 {
 100   /*
 101     to do implement! override!
 102
 103         while(!bTerminated) {
 104          ...
 105         }
 106   */
 107  return 0;
 108 }
 109
 110 void CThread::Terminate(void)
 111 {
 112    // Set Termination Flag and EventObject!
 113    // and wait for Termination
 114    m_bTerminated = ATMO_TRUE;
 115
 116 #if defined(_ATMO_VLC_PLUGIN_)
 117    if(m_pAtmoThread)
 118    {
 119       vlc_mutex_lock( &m_TerminateLock );
 120       vlc_cond_signal( &m_TerminateCond  );
 121       vlc_mutex_unlock( &m_TerminateLock );
 122       vlc_object_kill( m_pAtmoThread );
 123
 124       vlc_thread_join( m_pAtmoThread );
 125    }
 126 #else
 127    SetEvent(m_hTerminateEvent);
 128    WaitForSingleObject(m_hThread,INFINITE);
 129 #endif
 130 }
 131
 132 void CThread::Run()
 133 {
 134    m_bTerminated = ATMO_FALSE;
 135
 136 #if defined(_ATMO_VLC_PLUGIN_)
 137    m_pAtmoThread->b_die = false;
 138    if(vlc_thread_create( m_pAtmoThread,
 139                          "Atmo-CThread-Class",
 140                          CThread::ThreadProc,
 141                          VLC_THREAD_PRIORITY_LOW ))
 142    {
 143       msg_Err( m_pOwner, "cannot launch one of the AtmoLight threads");
 144    }
 145
 146 #else
 147
 148    ResetEvent(m_hTerminateEvent);
 149    ResumeThread(m_hThread);
 150
 151 #endif
 152 }
 153
 154 /*
 155    does a sleep if the sleep was interrupted through
 156    the thread kill event return false...
 157 */
 158 ATMO_BOOL CThread::ThreadSleep(DWORD millisekunden)
 159 {
 160 #if defined(_ATMO_VLC_PLUGIN_)
 161      vlc_mutex_lock( &m_TerminateLock );
 162      int value = vlc_cond_timedwait(&m_TerminateCond,
 163                                     &m_TerminateLock,
 164                                     mdate() + (mtime_t)(millisekunden * 1000));
 165      vlc_mutex_unlock( &m_TerminateLock );
 166      return (value != 0);
 167
 168 #else
 169      DWORD res = WaitForSingleObject(m_hTerminateEvent,millisekunden);
 170          return (res == WAIT_TIMEOUT);
 171 #endif
 172 }
 173