C++ wxMutex::Unlock方法代码示例

/*****************************************************
**
**   AtlasLogic   ---   getEntryByRowId
**
******************************************************/
AtlasEntry *AtlasLogic::getEntryByRowId( const int &rowid )
{
	assert( sharedSection );

	mutex.Lock();
	for ( int i = 0; i < ATLAS_MAX_GRID_ELEMENTS; i++ )
	{
		if ( entries[i] != 0 && entries[i]->rowid == rowid )
		{
			mutex.Unlock();
			return entries[i];
		}
	}
	mutex.Unlock();

	if ( rowid > 0 && ! sharedSection->fetchHasOrder && ! sharedSection->fetchIsWorking )
	{
		mutex.Lock();
		resetEntries();
		sharedSection->fetchOffset = Max( 0, rowid - 15 );
		sharedSection->fetchHasOrder = true;
		mutex.Unlock();
	}
	return 0;
}

void  layprop::ViewProperties::lockLayer(word layno, bool lock) {
   // No error messages here, because of possible range use
   while (wxMUTEX_NO_ERROR != DBLock.TryLock());
   if (_drawprop._layset.end() != _drawprop._layset.find(layno))
      _drawprop._layset[layno]->_locked = lock;
   DBLock.Unlock();
}

	/*****************************************************
	**
	**   AtlasLogicCountWorker   ---   Entry
	**
	******************************************************/
	ExitCode Entry()
	{
		while ( sharedSection->doExit == false )
		{
			Sleep( COUNT_THREAD_SLEEP_MILLISEC );
			if ( sharedSection->countHasOrder )
			{
#ifdef DEB_ATLAS_LOGIC
				printf( "AtlasLogicCountWorker: location count started, filter \"%s\", country \"%s\", mode %d\n",
					str2char( logic->filter ), str2char( logic->country ), logic->mode );
				wxLongLong starttime = wxGetLocalTimeMillis();
#endif
				sharedSection->countHasOrder = false;
				int c = dao->getMatchCount( logic->filter, logic->country, logic->mode );

				if ( sharedSection->countHasOrder )
				{
					// new order arrived, filter conditions have changed meanwhile: do not write results
					printf( "WARN: AtlasLogicCountWorker has new order before finishing request\n" );
				}
				else
				{
					mutex.Lock();
					sharedSection->countHasNews = true;
					sharedSection->count = c;
					mutex.Unlock();
#ifdef DEB_ATLAS_LOGIC
					wxLongLong duration = wxGetLocalTimeMillis() - starttime;
					printf( "AtlasLogicCountWorker: Location count finished, %d results in %ld millisec\n", c, duration.ToLong() );
#endif
				}
			}
		}
		return 0;
	}

void AtlasImporter::setDatabaseFile( wxString s )
{
	assert( sharedSection );
	mutex.Lock();
	sharedSection->dbfile = s;
	mutex.Unlock();
}

void AtlasImporter::setImportFile( wxString s )
{
	assert( sharedSection );
	mutex.Lock();
	sharedSection->sqlfile = s;
	mutex.Unlock();
}

bool wxSoundSyncOnlyAdaptor::Play(wxSoundData *data, unsigned flags,
                                  volatile wxSoundPlaybackStatus *status)
{
    Stop();
    if (flags & wxSOUND_ASYNC)
    {
#if wxUSE_THREADS
        m_mutexRightToPlay.Lock();
        m_status.m_playing = true;
        m_status.m_stopRequested = false;
        data->IncRef();
        wxThread *th = new wxSoundAsyncPlaybackThread(this, data, flags);
        th->Create();
        th->Run();
        wxLogTrace(_T("sound"), _T("launched async playback thread"));
        return true;
#else
        wxLogError(_("Unable to play sound asynchronously."));
        return false;
#endif
    }
    else
    {
#if wxUSE_THREADS
        m_mutexRightToPlay.Lock();
#endif
        bool rv = m_backend->Play(data, flags, status);
#if wxUSE_THREADS
        m_mutexRightToPlay.Unlock();
#endif
        return rv;
    }
}

/*****************************************************
**
**   AtlasLogic   ---   updateFilter
**
******************************************************/
void AtlasLogic::updateFilter()
{
	mutex.Lock();
	resetEntries();

	assert( sharedSection );
	sharedSection->countHasOrder = true;
	sharedSection->fetchHasOrder = true;
	mutex.Unlock();
}

void DataCenter::tmp_draw(const layprop::DrawProperties& drawprop,
                              TP base, TP newp) {
   if (_TEDDB) {
//      _TEDDB->check_active();
      while (wxMUTEX_NO_ERROR != DBLock.TryLock());
      _TEDDB->tmp_draw(drawprop, base, newp);
      DBLock.Unlock();
   }
// 
//   else throw EXPTNactive_DB();      
}

void DataCenter::openGL_draw(layprop::DrawProperties& drawprop) {
// Maybe we need another try/catch in the layoutcanvas ?   
   if (_TEDDB) {
//      _TEDDB->check_active();
      while (wxMUTEX_NO_ERROR != DBLock.TryLock());
      _TEDDB->openGL_draw(drawprop);
      DBLock.Unlock();
   }
// 
//   else throw EXPTNactive_DB();      
}

	/*****************************************************
	**
	**   AtlasImportWorker   ---   execQueryBundle
	**
	******************************************************/
	int execQueryBundle()
	{
		int ret = dao->executeQueryBundle( qb, false );
		if( ret != (int)qb.size())
		{
			mutex.Lock();
			sharedSection->errorCount++;
			sharedSection->errorMessage = dao->getLastErrorMessage();
			sharedSection->threadStatus = THREADSTATUS_ERROR;
			mutex.Unlock();
		}
		qb.clear();
		return ret;
	}

//==============================================================================
void* console::parse_thread::Entry() {
//   wxLogMessage(_T("Mouse is %s (%ld, %ld)"), where.c_str(), x, y);
//   wxLogMessage(_T("Mutex try to lock..."));
   while (wxMUTEX_NO_ERROR != Mutex.TryLock());
//   wxLogMessage(_T("Mutex locked!"));
   telllloc.first_column = telllloc.first_line = 1;
   telllloc.last_column  = telllloc.last_line  = 1;
   telllloc.filename = NULL;
   void* b = tell_scan_string( command.c_str() );
   tellparse();
   my_delete_yy_buffer( b );
   Mutex.Unlock();
//   wxLogMessage(_T("Mutex unlocked"));
   return NULL;
};

void HexEditorCtrl::ReadFromBuffer( uint64_t position, unsigned lenght, char *buffer, bool cursor_reset, bool paint ){
	static wxMutex MyBufferMutex;
	MyBufferMutex.Lock();
	page_offset = position;
	if( lenght != ByteCapacity() ){
		//last line could be NULL;
		}
	Clear( false, cursor_reset );
	wxString text_string;
// Optimized Code
	for( unsigned i=0 ; i<lenght ; i++ )
		text_string << text_ctrl->Filter(buffer[i]);

	//Painting Zebra Stripes, -1 means no stripe. 0 means start with normal, 1 means start with zebra
	*ZebraStriping=(ZebraEnable ? position/BytePerLine()%2 : -1);
	if(sector_size > 1){
		offset_ctrl->sector_size=sector_size;
		int draw_line=sector_size-(page_offset%sector_size);
		hex_ctrl->ThinSeperationLines.Clear();
		text_ctrl->ThinSeperationLines.Clear();
			do{
			hex_ctrl->ThinSeperationLines.Add( 2*draw_line );
			text_ctrl->ThinSeperationLines.Add( draw_line );
			draw_line += sector_size;
			}while (draw_line < lenght );
		}

	hex_ctrl->SetBinValue(buffer, lenght, false );
	text_ctrl->ChangeValue(text_string, false);
	offset_ctrl->SetValue( position, BytePerLine() );

	if( offset_scroll->GetThumbPosition() not_eq (page_offset / BytePerLine()) )
		offset_scroll->SetThumbPosition( page_offset / BytePerLine() );

	if( paint ){
		PaintSelection();
		}
//	sector_size=128;
//	if(sector_size > 1){
//		int draw_line=sector_size-(page_offset%sector_size);
//			do{
//			hex_ctrl->DrawSeperationLineAfterChar( 2*draw_line );
//			text_ctrl->DrawSeperationLineAfterChar( draw_line );
//			draw_line += sector_size;
//			}while (draw_line < GetByteCount() );
//		}
	MyBufferMutex.Unlock();
	}

////////////////////////////////////////////////////////////////////////////////
// This handler will display a popup menu for the item at the mouse position
////////////////////////////////////////////////////////////////////////////////
void frmMain::OnSelRightClick(wxTreeEvent &event)
{
	wxTreeItemId item = event.GetItem();
	if (item != browser->GetSelection())
	{
		browser->SelectItem(item);

		// Prevent changes to "currentObject" by "execSelchange" function by another
		// thread. Will hold the lock until we have the actual object in hand.
		s_currentObjectMutex.Lock();
		currentObject = browser->GetObject(item);
		s_currentObjectMutex.Unlock();
	}

	if (currentObject)
		doPopup(browser, event.GetPoint(), currentObject);
}

void wxSoundSyncOnlyAdaptor::Stop()
{
    wxLogTrace(_T("sound"), _T("asking audio to stop"));

#if wxUSE_THREADS
    // tell the player thread (if running) to stop playback ASAP:
    m_status.m_stopRequested = true;

    // acquire the mutex to be sure no sound is being played, then
    // release it because we don't need it for anything (the effect of this
    // is that calling thread will wait until playback thread reacts to
    // our request to interrupt playback):
    m_mutexRightToPlay.Lock();
    m_mutexRightToPlay.Unlock();
    wxLogTrace(_T("sound"), _T("audio was stopped"));
#endif
}

wxThread::ExitCode AegisubVersionCheckerThread::Entry()
{
	if (!interactive)
	{
		// Automatic checking enabled?
		if (!OPT_GET("App/Auto/Check For Updates")->GetBool())
			return 0;

		// Is it actually time for a check?
		time_t next_check = OPT_GET("Version/Next Check")->GetInt();
		if (next_check > wxDateTime::GetTimeNow())
			return 0;
	}

	if (VersionCheckLock.TryLock() != wxMUTEX_NO_ERROR) return 0;

	try {
		DoCheck();
	}
	catch (const agi::Exception &e) {
		PostErrorEvent(wxString::Format(
			_("There was an error checking for updates to Aegisub:\n%s\n\nIf other applications can access the Internet fine, this is probably a temporary server problem on our end."),
			e.GetMessage()));
	}
	catch (...) {
		PostErrorEvent(_("An unknown error occurred while checking for updates to Aegisub."));
	}

	VersionCheckLock.Unlock();

	// While Options isn't perfectly thread safe, this should still be okay.
	// Traversing the std::map to find the key-value pair doesn't modify any data as long as
	// the key already exists (which it does at this point), and modifying the value only
	// touches that specific key-value pair and will never cause a rebalancing of the tree,
	// because the tree only depends on the keys.
	// Lastly, writing options to disk only happens when Options.Save() is called.
	time_t new_next_check_time = wxDateTime::GetTimeNow() + 60*60; // in one hour
	OPT_SET("Version/Next Check")->SetInt((int)new_next_check_time);

	return 0;
}