Method addNotification

Engine/source/core/volume.cpp:39–103

//-----------------------------------------------------------------------------

bool FileSystemChangeNotifier::addNotification( const Path &path, ChangeDelegate callback )
{
   // Notifications are for files... if the path is empty 
   // then there is nothing to do. 
   if ( path.isEmpty() )
      return false;

   // strip the filename and extension - we notify on dirs
   Path dir(cleanPath(path));
   if (dir.isEmpty())
      return false;

   dir.setFileName( String() );
   dir.setExtension( String () );
   
   // first lookup the dir to see if we already have an entry for it...
   DirMap::Iterator   itr = mDirMap.find( dir );

   FileInfoList   *fileList = NULL;
   bool           addedDir = false;

   // Note that GetFileAttributes can fail here if the file doesn't 
   // exist, but thats ok and expected.  You can have notifications 
   // on files that don't exist yet.
   FileNode::Attributes attr;
   GetFileAttributes(path, &attr);

   if ( itr != mDirMap.end() )
   {
      fileList = &(itr->value);

      // look for the file and return if we find it
      for ( U32 i = 0; i < fileList->getSize(); i++ )
      {
         FileInfo &fInfo = (*fileList)[i];
         if ( fInfo.filePath == path )
         {
            // NOTE: This is bad... we should store the mod
            // time for each callback seperately in the future.
            //
            fInfo.savedLastModTime = attr.mtime;
            fInfo.signal.notify(callback);
            return true;
         }
      }
   }
   else
   {
      // otherwise we need to add the dir to our map and let the inherited class add it
      itr = mDirMap.insert( dir, FileInfoList() );

      fileList = &(itr->value);

      addedDir = true;
   }

   FileInfo newInfo;
   newInfo.signal.notify(callback);