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Added automatic slicing of search response packets so as to cope with streaming packet size requirements. Tested.

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git-svn-id: http://svn.code.sf.net/p/retroshare/code/trunk@1118 b45a01b8-16f6-495d-af2f-9b41ad6348cc
This commit is contained in:
csoler 2009-04-06 21:06:44 +00:00
parent 1ff00dcf07
commit ab43d876c8
1 changed files with 34 additions and 16 deletions
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48
libretroshare/src/services/p3turtle.cc
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@ -208,23 +208,41 @@ void p3turtle::handleSearchRequest(RsTurtleSearchRequestItem *item)
std::list<TurtleFileInfo> result ;
performLocalSearch(item->match_string,result) ;
if(!result.empty())
{
// do something
// forward item back
RsTurtleSearchResultItem *res_item = new RsTurtleSearchResultItem ;
// perhaps we should chop search results items into several items of finite size ?
res_item->depth = 0 ;
res_item->result = result ;
res_item->request_id = item->request_id ;
res_item->PeerId(item->PeerId()) ; // send back to the same guy
RsTurtleSearchResultItem *res_item = NULL ;
uint32_t item_size = 0 ;
#ifdef P3TURTLE_DEBUG
std::cerr << " " << result.size() << " matches found. Sending back to origin (" << res_item->PeerId() << ")." << std::endl ;
if(!result.empty())
std::cerr << " " << result.size() << " matches found. Sending back to origin (" << item->PeerId() << ")." << std::endl ;
#endif
while(!result.empty())
{
// Let's chop search results items into several chunks of finite size to avoid exceeding streamer's capacity.
//
static const uint32_t RSTURTLE_MAX_SEARCH_RESPONSE_SIZE = 10000 ;
if(res_item == NULL)
{
res_item = new RsTurtleSearchResultItem ;
item_size = 0 ;
res_item->depth = 0 ;
res_item->request_id = item->request_id ;
res_item->PeerId(item->PeerId()) ; // send back to the same guy
}
res_item->result.push_back(result.front()) ;
item_size += 8 /* size */ + result.front().hash.size() + result.front().name.size() ;
result.pop_front() ;
if(item_size > RSTURTLE_MAX_SEARCH_RESPONSE_SIZE || result.empty())
{
#ifdef P3TURTLE_DEBUG
std::cerr << " Sending back chunk of size " << item_size << ", for " << res_item->result.size() << " elements." << std::endl ;
#endif
sendItem(res_item) ;
res_item = NULL ;
}
}
}
#ifdef P3TURTLE_DEBUG
@ -310,7 +328,7 @@ std::ostream& RsTurtleSearchRequestItem::print(std::ostream& o, uint16_t)
o << "Search request:" << std::endl ;
o << " direct origin: \"" << PeerId() << "\"" << std::endl ;
o << " match string: \"" << match_string << "\"" << std::endl ;
o << " Req. Id: " << request_id << std::endl ;
o << " Req. Id: " << (void *)request_id << std::endl ;
o << " Depth : " << depth << std::endl ;
return o ;
@ -322,7 +340,7 @@ std::ostream& RsTurtleSearchResultItem::print(std::ostream& o, uint16_t)
o << " Peer id: " << PeerId() << std::endl ;
o << " Depth : " << depth << std::endl ;
o << " Req. Id: " << request_id << std::endl ;
o << " Req. Id: " << (void *)request_id << std::endl ;
o << " Files:" << std::endl ;
for(std::list<TurtleFileInfo>::const_iterator it(result.begin());it!=result.end();++it)