1 files changed, 110 insertions, 0 deletions
diff --git a/apps/ktcachecheck/cachechecker.cpp b/apps/ktcachecheck/cachechecker.cpp
new file mode 100644
index 0000000..6cdf3e5
--- /dev/null
+++ b/apps/ktcachecheck/cachechecker.cpp
@@ -0,0 +1,110 @@
+/***************************************************************************
+ *   Copyright (C) 2005 by Joris Guisson                                   *
+ *   joris.guisson@gmail.com                                               *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.             *
+ ***************************************************************************/
+#include <klocale.h>
+#include <util/log.h>
+#include <util/file.h>
+#include <util/error.h>
+#include <util/array.h>
+#include <torrent/globals.h>
+#include <torrent/torrent.h>
+#include <torrent/chunkmanager.h>
+#include "cachechecker.h"
+
+using namespace bt;
+
+namespace ktdebug
+{
+
+	CacheChecker::CacheChecker(bt::Torrent & tor) : tor(tor)
+	{}
+
+
+	CacheChecker::~CacheChecker()
+	{}
+
+	void CacheChecker::loadIndex(const QString & index_file)
+	{
+		this->index_file = index_file;
+		File fptr;
+		if (!fptr.open(index_file,"rb"))
+			throw Error(i18n("Cannot open index file %1 : %2").arg(index_file).arg(fptr.errorString()));
+
+		if (fptr.seek(File::END,0) != 0)
+		{
+			fptr.seek(File::BEGIN,0);
+			
+			while (!fptr.eof())
+			{
+				NewChunkHeader hdr;
+				fptr.read(&hdr,sizeof(NewChunkHeader));
+				downloaded_chunks.insert(hdr.index);
+			}
+		}
+	}
+
+	struct ChunkHeader
+	{
+		unsigned int index; // the Chunks index
+		unsigned int deprecated; // offset in cache file
+	};
+	
+
+	void CacheChecker::fixIndex()
+	{
+		if (failed_chunks.size() == 0 && extra_chunks.size() == 0)
+			return;
+
+		File fptr;
+		if (!fptr.open(index_file,"wb"))
+			throw Error(i18n("Cannot open index file %1 : %2").arg(index_file).arg(fptr.errorString()));
+
+		std::set<bt::Uint32>::iterator i;
+		// first remove failed chunks from downloaded
+		if (failed_chunks.size() > 0)
+		{
+			i = failed_chunks.begin();
+			while (i != failed_chunks.end())
+			{
+				downloaded_chunks.erase(*i);
+				i++;
+			}
+		}
+
+		// add extra chunks to download
+		if (extra_chunks.size() > 0)
+		{
+			i = extra_chunks.begin();
+			while (i != extra_chunks.end())
+			{
+				downloaded_chunks.insert(*i);
+				i++;
+			}
+		}
+
+		// write remaining chunks
+		i = downloaded_chunks.begin();
+		while (i != downloaded_chunks.end())
+		{
+			ChunkHeader ch = {*i,0};
+			fptr.write(&ch,sizeof(ChunkHeader));
+			i++;
+		}
+	}
+}