Exemplo n.º 1
0
	void SingleDataChecker::check(const QString& path, const Torrent& tor,const QString &)
	{
		// open the file
		Uint32 num_chunks = tor.getNumChunks();
		Uint32 chunk_size = tor.getChunkSize();
		File fptr;
		if (!fptr.open(path,"rb"))
		{
			throw Error(i18n("Cannot open file : %1 : %2")
					.arg(path).arg( fptr.errorString()));
		}

		// initialize the bitsets
		downloaded = BitSet(num_chunks);
		failed = BitSet(num_chunks);
		
		TimeStamp last_update_time = bt::GetCurrentTime();
		
		// loop over all chunks
		Array<Uint8> buf(chunk_size);
		for (Uint32 i = 0;i < num_chunks;i++)
		{
			if (listener)
			{
				listener->progress(i,num_chunks);
				if (listener->needToStop()) // if we need to stop just return
					return;
			}
			
			TimeStamp now = bt::GetCurrentTime();
			if (now - last_update_time > 1000)
			{
				Out(SYS_DIO|LOG_DEBUG) << "Checked " << i << " chunks" << endl;
				last_update_time = now;
			}
	
			if (!fptr.eof())
			{
				// read the chunk
				Uint32 size = i == num_chunks - 1 && tor.getFileLength() % tor.getChunkSize() > 0 ?
						tor.getFileLength() % tor.getChunkSize() : (Uint32)tor.getChunkSize();
				
				fptr.seek(File::BEGIN,(Int64)i*tor.getChunkSize());
				fptr.read(buf,size);
				// generate and test hash
				SHA1Hash h = SHA1Hash::generate(buf,size);
				bool ok = (h == tor.getHash(i));
				downloaded.set(i,ok);
				failed.set(i,!ok);
			}
			else
			{
				// at end of file so set to default values for a failed chunk
				downloaded.set(i,false);
				failed.set(i,true);
			}
			if (listener)
				listener->status(failed.numOnBits(),downloaded.numOnBits());
		}
	}
	ChunkManager::Private::Private(ChunkManager* p,
								   Torrent& tor,
								   const QString & tmpdir,
								   const QString & datadir,
								   bool custom_output_name,
								   CacheFactory* fac)
	: p(p),chunks(tor.getNumChunks()),todo(tor.getNumChunks())
	{
		during_load = false;
		todo.setAll(true);
		
		if (!fac)
		{
			if (tor.isMultiFile())
				cache = new MultiFileCache(tor,tmpdir,datadir,custom_output_name);
			else
				cache = new SingleFileCache(tor,tmpdir,datadir);
		}
		else
			cache = fac->create(tor,tmpdir,datadir);
		
		cache->loadFileMap();
		
		index_file = tmpdir + "index";
		file_info_file = tmpdir + "file_info";
		file_priority_file = tmpdir + "file_priority";
		Uint64 tsize = tor.getTotalSize();	// total size
		Uint64 csize = tor.getChunkSize();	// chunk size
		Uint64 lsize = tsize - (csize * (tor.getNumChunks() - 1)); // size of last chunk
		
		for (Uint32 i = 0;i < tor.getNumChunks();i++)
		{
			if (i + 1 < tor.getNumChunks())
				chunks[i] = new Chunk(i,csize,cache);
			else
				chunks[i] = new Chunk(i,lsize,cache);
		}
		
		chunks_left = 0;
		recalc_chunks_left = true;
	}