- Added a ChunkMap class responsible for allocating new chunks to be downloaded, according to

- a given chunk strategy
	- the availablility map of each source 
- Integrated this into ftFileCreator
- added gui menu in file transfer+right click to change the chunk strategy: streaming vs. random

Next step: 
	- loading/saving file downloading state and availability map
	- displaying chunk details in the selected transfer tab (e.g. list of currently worked chunks, and their current downloading completion)



git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1863 b45a01b8-16f6-495d-af2f-9b41ad6348cc

libretroshare/src/ft/ftfilecreator.h

@@ -35,7 +35,6 @@
 #include "ftfileprovider.h"
 #include "ftchunkmap.h"
 #include <map>
-class ftChunk;
 
 class ftFileCreator: public ftFileProvider
 {
@@ -51,12 +50,13 @@ virtual bool 	getFileData(uint64_t offset, uint32_t &chunk_size, void *data);
 	uint64_t getRecvd();
 		
 	void getChunkMap(FileChunksInfo& info) ;
+	void setChunkStrategy(FileChunksInfo::ChunkStrategy s) ;
 
 	/* 
 	 * creation functions for FileCreator 
          */
 
-	bool	getMissingChunk(uint64_t &offset, uint32_t &chunk);
+	bool	getMissingChunk(const std::string& peer_id,uint32_t size_hint,uint64_t& offset, uint32_t& size);
 	bool 	addFileData(uint64_t offset, uint32_t chunk_size, void *data);
 
 protected:
@@ -79,15 +79,4 @@ private:
 	ChunkMap chunkMap ;
 };
 
-class ftChunk {
-public:
-	ftChunk(uint64_t,uint64_t,time_t);
-	ftChunk():offset(0), chunk(0), ts(0) {}
-	~ftChunk();
-
-	uint64_t offset;
-	uint64_t chunk;
-	time_t   ts;
-};
-
 #endif // FT_FILE_CREATOR_HEADER