2007-11-12 Tatsuhiro Tsujikawa <tujikawa at rednoah dot com>

	Implemented checksum validation feature(1 checksum for each 
file)
	The validation takes place after the download.
	* src/PieceHashCheckIntegrityEntry.{h, cc}: New class.
	* src/IteratableChecksumValidator.{h, cc}: Rewritten.
	* src/CheckIntegrityCommand.cc: Changed log message.
	* src/Metalink2RequestGroup.cc: Set checksum to
	SingleFileDownloadContext.
	* src/StreamCheckIntegrityEntry.{h, cc}: Now derived from
	PieceHashCheckIntegrity class.
	* src/BtCheckIntegrityEntry.{h, cc}: Now derived from
	PieceHashCheckIntegrity class.
	* src/ChecksumCheckIntegrityEntry.{h, cc}: New class.
	* src/IteratableValidator.h: New class.
	* src/message.h
	* src/CheckIntegrityEntry.{h, cc}
	* src/IteratableChunkChecksumValidator.{h, cc}
	* src/SingleFileDownloadContext.h
	* src/DownloadCommand.cc
	
	--allow-overwrite=true is no longer needed to check file 
integrity
	before download in BitTorrent download.
	* src/RequestGroup.cc (getInitialCommand)

	Removed RequestGroup from queue when 
RequestGroup::getInitialCommand()
	throws exception.
	* src/RequestGroupMan.cc (getInitialCommands)
	

1 files changed, 8 insertions, 10 deletions

diff --git a/src/CheckIntegrityEntry.h b/src/CheckIntegrityEntry.h
index a6d0bf1c..df22a79e 100644
--- a/src/CheckIntegrityEntry.h
+++ b/src/CheckIntegrityEntry.h
@@ -37,16 +37,16 @@
 
 #include "RequestGroupEntry.h"
 
-class IteratableChunkChecksumValidator;
-extern typedef SharedHandle<IteratableChunkChecksumValidator> IteratableChunkChecksumValidatorHandle;
+class IteratableValidator;
+extern typedef SharedHandle<IteratableValidator> IteratableValidatorHandle;
 class Command;
 extern typedef deque<Command*> Commands;
 class DownloadEngine;
 
 class CheckIntegrityEntry : public RequestGroupEntry,
 			    public ProgressAwareEntry {
-private:
-  IteratableChunkChecksumValidatorHandle _validator;
+protected:
+  IteratableValidatorHandle _validator;
 public:
   CheckIntegrityEntry(RequestGroup* requestGroup, Command* nextCommand = 0);
 
@@ -56,15 +56,13 @@ public:
 
   virtual int64_t getCurrentLength();
 
-  virtual bool finished();
-
-  bool isValidationReady();
+  virtual void validateChunk();
 
-  void initValidator();
+  virtual bool finished();
 
-  void validateChunk();
+  virtual bool isValidationReady() = 0;
 
-  void updatePieceStorage();
+  virtual void initValidator() = 0;
 
   virtual Commands onDownloadFinished(DownloadEngine* e) = 0;