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turtle tunnel management

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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1289 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
csoler 2009-06-03 18:47:14 +00:00
parent 2bd3899c05
commit 48218e98cb
14 changed files with 351 additions and 99 deletions
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49
libretroshare/src/turtle/p3turtle.h
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@ -161,6 +161,7 @@ class ftServer ;
class p3AuthMgr;
class p3ConnectMgr;
class ftDataMultiplex;
class RsSerialiser;
static const int TURTLE_MAX_SEARCH_DEPTH = 6 ;
// This class is used to keep trace of requests (searches and tunnels).
@ -191,10 +192,22 @@ class TurtleFileHashInfo
TurtleRequestId last_request ; // last request for the tunnels of this hash
TurtleFileName name ;
time_t time_stamp ;
uint64_t size ;
};
class p3turtle: public p3Service, public pqiMonitor, public RsTurtle, public ftSearch
// Subclassing:
//
// Class | Brings what | Usage
// -----------+------------------+------------------------------------------------------
// p3Service | sendItem() | handle packet sending/receiving to/from friend peers.
// pqiMonitor | configChanged() | handle who's connecting/disconnecting to dig new tunnels
// RsTurtle | start/stop file()| brings interface for turtle service
// ftSearch | search() | used to allow searching for monitored files.
// p3Config | ConfigChanged() | used to load/save .cfg file for turtle variales.
// -----------+------------------+------------------------------------------------------
//
class p3turtle: public p3Service, public pqiMonitor, public RsTurtle, public ftSearch, public p3Config
{
public:
p3turtle(p3ConnectMgr *cm,ftServer *m);
@ -205,16 +218,24 @@ class p3turtle: public p3Service, public pqiMonitor, public RsTurtle, public ftS
//
virtual TurtleSearchRequestId turtleSearch(const std::string& string_to_match) ;
// Initiates tunnel handling for the given file hash.
// tunnels. Launches an exception if an error occurs during the
// initialization process. The turtle router itself does not initiate downloads,
// it only maintains tunnels for the given hash. The download should be
// driven by the file transfer module. Maybe this function can do the whole thing:
// Initiates tunnel handling for the given file hash. tunnels. Launches
// an exception if an error occurs during the initialization process. The
// turtle router itself does not initiate downloads, it only maintains
// tunnels for the given hash. The download should be driven by the file
// transfer module. Maybe this function can do the whole thing:
// - initiate tunnel handling
// - send the file request to the file transfer module
// - populate the file transfer module with the adequate pqi interface and search module.
//
virtual void turtleDownload(const std::string& name,const std::string& file_hash,uint64_t size) ;
// This function should be called in addition to ftServer::FileRequest() so that the turtle router
// automatically provide tunnels for the file to download.
//
virtual void monitorFileTunnels(const std::string& name,const std::string& file_hash,uint64_t size) ;
// This should be called when canceling a file download, so that the turtle router stops
// handling tunnels for this file.
//
virtual void stopMonitoringFileTunnels(const std::string& file_hash) ;
/************* from pqiMonitor *******************/
// Informs the turtle router that some peers are (dis)connected. This should initiate digging new tunnels,
@ -237,6 +258,11 @@ class p3turtle: public p3Service, public pqiMonitor, public RsTurtle, public ftS
//
virtual bool search(std::string hash, uint64_t size, uint32_t hintflags, FileInfo &info) const ;
/************* from p3Config *******************/
virtual RsSerialiser *setupSerialiser() ;
virtual std::list<RsItem*> saveList(bool& cleanup) ;
virtual bool loadList(std::list<RsItem*> load) ;
/************* Communication with ftserver *******************/
// Does the turtle router manages tunnels to this peer ? (this is not a
// real id, but a fake one, that the turtle router is capable of connecting with a tunnel id).
@ -271,8 +297,9 @@ class p3turtle: public p3Service, public pqiMonitor, public RsTurtle, public ftS
//----------------------------- Routing functions ----------------------------//
void manageTunnels() ; /// Handle tunnel digging for current file hashes
int handleIncoming(); /// Main routing function
void manageTunnels() ; /// Handle tunnel digging for current file hashes
void closeTunnel(TurtleTunnelId tid) ; /// closes a given tunnel
int handleIncoming(); /// Main routing function
void handleSearchRequest(RsTurtleSearchRequestItem *item); /// specific routing functions for handling particular packets.
void handleSearchResult(RsTurtleSearchResultItem *item);
@ -303,18 +330,16 @@ class p3turtle: public p3Service, public pqiMonitor, public RsTurtle, public ftS
std::map<TurtleSearchRequestId,TurtleRequestInfo> _search_requests_origins ; /// keeps trace of who emmitted a given search request
std::map<TurtleTunnelRequestId,TurtleRequestInfo> _tunnel_requests_origins ; /// keeps trace of who emmitted a tunnel request
std::map<TurtleFileHash,TurtleFileHashInfo> _incoming_file_hashes ; /// stores adequate tunnels for each file hash locally managed
std::map<TurtleFileHash,FileInfo> _outgoing_file_hashes ; /// stores file info for each file we provide.
std::map<TurtleTunnelId,TurtleTunnel > _local_tunnels ; /// local tunnels, stored by ids (Either transiting or ending).
std::map<TurtleVirtualPeerId,TurtleTunnelId> _virtual_peers ; /// Peers corresponding to each tunnel.
time_t _last_clean_time ;
time_t _last_tunnel_management_time ;
std::list<pqipeer> _online_peers;
bool _force_digg_new_tunnels ; /// used to force digging new tunnels
#ifdef P3TURTLE_DEBUG
void dumpState() ;
#endif