2019-01-11 01:19:36 +00:00
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#include <path/pathset.hpp>
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2018-12-12 00:48:54 +00:00
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#include <dht/messages/pubintro.hpp>
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2019-01-11 01:19:36 +00:00
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#include <path/path.hpp>
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2019-06-15 14:55:13 +00:00
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#include <routing/dht_message.hpp>
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2018-06-25 15:12:08 +00:00
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namespace llarp
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{
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namespace path
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{
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2019-07-18 16:28:17 +00:00
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PathSet::PathSet(size_t num) : numPaths(num)
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2018-06-25 15:12:08 +00:00
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{
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}
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bool
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2018-10-29 16:48:36 +00:00
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PathSet::ShouldBuildMore(llarp_time_t now) const
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2018-06-25 15:12:08 +00:00
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{
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2019-04-23 16:13:22 +00:00
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(void)now;
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2019-04-22 19:15:07 +00:00
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const auto building = NumInStatus(ePathBuilding);
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2019-07-18 16:28:17 +00:00
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if(building > numPaths)
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2019-04-22 19:15:07 +00:00
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return false;
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const auto established = NumInStatus(ePathEstablished);
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2019-07-18 16:28:17 +00:00
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return established <= numPaths;
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2018-06-25 15:12:08 +00:00
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}
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2018-11-14 18:02:27 +00:00
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bool
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PathSet::ShouldBuildMoreForRoles(llarp_time_t now, PathRole roles) const
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-11-14 18:02:27 +00:00
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const size_t required = MinRequiredForRoles(roles);
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size_t has = 0;
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for(const auto& item : m_Paths)
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{
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2018-11-21 12:31:36 +00:00
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if(item.second->SupportsAnyRoles(roles))
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2018-11-14 18:02:27 +00:00
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{
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if(!item.second->ExpiresSoon(now))
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++has;
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}
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}
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return has < required;
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}
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size_t
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PathSet::MinRequiredForRoles(PathRole roles) const
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{
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2018-11-19 16:48:35 +00:00
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(void)roles;
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return 0;
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2018-11-14 18:02:27 +00:00
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}
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2018-11-26 13:30:03 +00:00
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size_t
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PathSet::NumPathsExistingAt(llarp_time_t futureTime) const
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2018-11-25 16:58:27 +00:00
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{
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size_t num = 0;
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-11-26 13:30:03 +00:00
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for(const auto& item : m_Paths)
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2018-11-25 16:58:27 +00:00
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{
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2019-05-25 16:27:54 +00:00
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if(item.second->IsReady() && !item.second->Expired(futureTime))
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2018-11-25 16:58:27 +00:00
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++num;
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}
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return num;
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}
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2018-06-29 16:02:39 +00:00
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void
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2019-04-23 16:13:22 +00:00
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PathSet::TickPaths(llarp_time_t now, AbstractRouter* r)
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2018-06-29 16:02:39 +00:00
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-06-29 16:02:39 +00:00
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for(auto& item : m_Paths)
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{
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2018-09-13 16:41:53 +00:00
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item.second->Tick(now, r);
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2018-06-29 16:02:39 +00:00
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}
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}
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2018-06-25 15:12:08 +00:00
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void
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PathSet::ExpirePaths(llarp_time_t now)
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-08-17 19:49:58 +00:00
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if(m_Paths.size() == 0)
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return;
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2018-06-26 14:52:19 +00:00
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auto itr = m_Paths.begin();
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while(itr != m_Paths.end())
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2018-06-25 15:12:08 +00:00
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{
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2018-06-26 14:52:19 +00:00
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if(itr->second->Expired(now))
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itr = m_Paths.erase(itr);
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else
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++itr;
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2018-06-25 15:12:08 +00:00
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}
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}
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2019-04-23 14:28:59 +00:00
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Path_ptr
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2018-12-18 18:36:19 +00:00
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PathSet::GetEstablishedPathClosestTo(RouterID id, PathRole roles) const
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2018-08-01 22:10:38 +00:00
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2019-04-23 14:28:59 +00:00
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Path_ptr path = nullptr;
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2018-08-02 00:48:43 +00:00
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AlignedBuffer< 32 > dist;
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2019-01-02 01:03:53 +00:00
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AlignedBuffer< 32 > to = id;
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2018-08-01 22:10:38 +00:00
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dist.Fill(0xff);
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for(const auto& item : m_Paths)
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{
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2018-08-02 00:48:43 +00:00
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if(!item.second->IsReady())
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continue;
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2018-11-21 12:31:36 +00:00
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if(!item.second->SupportsAnyRoles(roles))
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2018-11-14 18:02:27 +00:00
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continue;
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2018-12-10 17:22:59 +00:00
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AlignedBuffer< 32 > localDist = item.second->Endpoint() ^ to;
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2018-08-01 22:10:38 +00:00
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if(localDist < dist)
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{
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dist = localDist;
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path = item.second;
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}
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}
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return path;
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}
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2019-04-23 14:28:59 +00:00
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Path_ptr
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2018-12-18 18:36:19 +00:00
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PathSet::GetNewestPathByRouter(RouterID id, PathRole roles) const
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2018-09-18 23:56:26 +00:00
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2019-04-23 14:28:59 +00:00
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Path_ptr chosen = nullptr;
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2019-04-23 16:13:22 +00:00
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auto itr = m_Paths.begin();
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2018-09-18 23:56:26 +00:00
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while(itr != m_Paths.end())
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{
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2018-11-21 12:31:36 +00:00
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if(itr->second->IsReady() && itr->second->SupportsAnyRoles(roles))
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2018-09-18 23:56:26 +00:00
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{
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if(itr->second->Endpoint() == id)
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{
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if(chosen == nullptr)
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chosen = itr->second;
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else if(chosen->intro.expiresAt < itr->second->intro.expiresAt)
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chosen = itr->second;
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}
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}
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++itr;
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}
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return chosen;
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}
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2019-04-23 14:28:59 +00:00
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Path_ptr
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2018-12-18 18:36:19 +00:00
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PathSet::GetPathByRouter(RouterID id, PathRole roles) const
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2018-07-22 23:14:29 +00:00
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2019-04-23 14:28:59 +00:00
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Path_ptr chosen = nullptr;
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2019-04-23 16:13:22 +00:00
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auto itr = m_Paths.begin();
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2018-07-22 23:14:29 +00:00
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while(itr != m_Paths.end())
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{
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2018-11-21 12:31:36 +00:00
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if(itr->second->IsReady() && itr->second->SupportsAnyRoles(roles))
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2018-07-23 07:38:29 +00:00
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{
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if(itr->second->Endpoint() == id)
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2018-09-13 16:41:53 +00:00
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{
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if(chosen == nullptr)
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chosen = itr->second;
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else if(chosen->intro.latency > itr->second->intro.latency)
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chosen = itr->second;
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}
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2018-07-23 07:38:29 +00:00
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}
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2018-07-22 23:14:29 +00:00
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++itr;
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}
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2018-09-13 16:41:53 +00:00
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return chosen;
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2018-07-22 23:14:29 +00:00
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}
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2019-04-23 14:28:59 +00:00
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Path_ptr
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2019-03-08 17:26:29 +00:00
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PathSet::GetByEndpointWithID(RouterID ep, PathID_t id) const
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{
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Lock_t l(&m_PathsMutex);
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auto itr = m_Paths.begin();
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while(itr != m_Paths.end())
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{
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if(itr->second->IsEndpoint(ep, id))
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{
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return itr->second;
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}
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++itr;
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}
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return nullptr;
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}
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2019-04-23 14:28:59 +00:00
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Path_ptr
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2018-12-18 18:36:19 +00:00
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PathSet::GetPathByID(PathID_t id) const
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2018-08-10 21:34:11 +00:00
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-08-10 21:34:11 +00:00
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auto itr = m_Paths.begin();
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while(itr != m_Paths.end())
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{
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if(itr->second->RXID() == id)
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return itr->second;
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++itr;
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}
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return nullptr;
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}
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2018-11-16 14:06:50 +00:00
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size_t
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PathSet::AvailablePaths(PathRole roles) const
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-11-16 14:06:50 +00:00
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size_t count = 0;
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auto itr = m_Paths.begin();
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while(itr != m_Paths.end())
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{
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if(itr->second->Status() == ePathEstablished
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2018-11-21 12:31:36 +00:00
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&& itr->second->SupportsAnyRoles(roles))
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2018-11-16 14:06:50 +00:00
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++count;
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++itr;
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}
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return count;
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}
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2018-06-25 15:12:08 +00:00
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size_t
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PathSet::NumInStatus(PathStatus st) const
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-06-25 15:12:08 +00:00
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size_t count = 0;
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2018-06-26 14:52:19 +00:00
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auto itr = m_Paths.begin();
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while(itr != m_Paths.end())
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2018-06-25 15:12:08 +00:00
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{
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2018-11-14 18:02:27 +00:00
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if(itr->second->Status() == st)
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2018-06-25 15:12:08 +00:00
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++count;
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++itr;
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}
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return count;
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}
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void
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2019-04-23 14:28:59 +00:00
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PathSet::AddPath(Path_ptr path)
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2018-06-25 15:12:08 +00:00
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-11-03 13:19:18 +00:00
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auto upstream = path->Upstream(); // RouterID
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auto RXID = path->RXID(); // PathID
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2019-04-23 14:28:59 +00:00
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m_Paths.emplace(std::make_pair(upstream, RXID), std::move(path));
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2018-06-25 15:12:08 +00:00
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}
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void
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2019-04-23 14:28:59 +00:00
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PathSet::RemovePath(Path_ptr path)
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2018-06-25 15:12:08 +00:00
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-06-26 14:52:19 +00:00
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m_Paths.erase({path->Upstream(), path->RXID()});
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2018-06-25 15:12:08 +00:00
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}
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2019-04-23 14:28:59 +00:00
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Path_ptr
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2018-12-18 18:36:19 +00:00
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PathSet::GetByUpstream(RouterID remote, PathID_t rxid) const
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2018-06-25 15:12:08 +00:00
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{
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-06-26 14:52:19 +00:00
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auto itr = m_Paths.find({remote, rxid});
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if(itr == m_Paths.end())
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return nullptr;
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return itr->second;
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2018-06-25 15:12:08 +00:00
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}
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2018-10-01 14:18:17 +00:00
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bool
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PathSet::GetCurrentIntroductionsWithFilter(
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2019-02-18 10:35:16 +00:00
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std::set< service::Introduction >& intros,
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std::function< bool(const service::Introduction&) > filter) const
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2018-10-01 14:18:17 +00:00
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{
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intros.clear();
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size_t count = 0;
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-12-02 18:07:07 +00:00
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auto itr = m_Paths.begin();
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2018-10-01 14:18:17 +00:00
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while(itr != m_Paths.end())
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{
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if(itr->second->IsReady() && filter(itr->second->intro))
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{
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intros.insert(itr->second->intro);
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++count;
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}
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++itr;
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}
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return count > 0;
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}
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2018-07-09 17:32:11 +00:00
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bool
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2018-07-11 16:11:19 +00:00
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PathSet::GetCurrentIntroductions(
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2019-02-18 10:35:16 +00:00
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std::set< service::Introduction >& intros) const
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2018-07-11 16:11:19 +00:00
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{
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2018-07-17 06:17:13 +00:00
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intros.clear();
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2018-07-11 16:11:19 +00:00
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size_t count = 0;
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2019-03-03 15:01:05 +00:00
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Lock_t l(&m_PathsMutex);
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2018-12-02 18:07:07 +00:00
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auto itr = m_Paths.begin();
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2018-07-11 16:11:19 +00:00
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while(itr != m_Paths.end())
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{
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if(itr->second->IsReady())
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{
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2018-07-19 04:58:39 +00:00
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intros.insert(itr->second->intro);
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2018-07-11 16:11:19 +00:00
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++count;
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}
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++itr;
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}
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return count > 0;
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}
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2018-09-26 13:04:25 +00:00
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void
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2019-04-23 14:28:59 +00:00
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PathSet::HandlePathBuildTimeout(Path_ptr p)
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2018-09-26 13:04:25 +00:00
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{
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2019-05-05 13:51:48 +00:00
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LogWarn(Name(), " path build ", p->HopsString(), " timed out");
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2019-07-01 13:44:25 +00:00
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m_BuildStats.timeouts++;
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}
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2019-07-31 12:51:24 +00:00
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void
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PathSet::HandlePathBuildFailed(Path_ptr p)
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{
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LogWarn(Name(), " path build ", p->HopsString(), " failed");
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m_BuildStats.fails ++;
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}
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2019-07-01 13:44:25 +00:00
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void
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PathSet::PathBuildStarted(Path_ptr p)
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{
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LogInfo(Name(), " path build ", p->HopsString(), " started");
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m_BuildStats.attempts++;
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}
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util::StatusObject
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BuildStats::ExtractStatus() const
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{
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return util::StatusObject{{"success", success},
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{"attempts", attempts},
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{"timeouts", timeouts},
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{"fails", fails}};
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}
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std::string
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BuildStats::ToString() const
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{
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std::stringstream ss;
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2019-07-01 14:56:56 +00:00
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ss << (SuccsessRatio() * 100.0) << " percent success ";
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2019-07-01 13:44:25 +00:00
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ss << "(success=" << success << " ";
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ss << "attempts=" << attempts << " ";
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ss << "timeouts=" << timeouts << " ";
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ss << "fails=" << fails << ")";
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return ss.str();
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}
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double
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BuildStats::SuccsessRatio() const
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{
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if(attempts)
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2019-07-01 14:56:56 +00:00
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return double(success) / double(attempts);
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return 0.0;
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2018-09-26 13:04:25 +00:00
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}
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2018-09-27 10:51:30 +00:00
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bool
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PathSet::GetNewestIntro(service::Introduction& intro) const
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{
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2018-09-27 11:03:01 +00:00
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intro.Clear();
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2018-09-27 10:51:30 +00:00
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bool found = false;
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2019-03-03 15:01:05 +00:00
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|
Lock_t l(&m_PathsMutex);
|
2018-12-02 18:07:07 +00:00
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auto itr = m_Paths.begin();
|
2018-09-27 10:51:30 +00:00
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while(itr != m_Paths.end())
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{
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|
if(itr->second->IsReady()
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&& itr->second->intro.expiresAt > intro.expiresAt)
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{
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|
intro = itr->second->intro;
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found = true;
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}
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++itr;
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}
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return found;
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}
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|
2019-04-23 14:28:59 +00:00
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Path_ptr
|
2018-11-14 18:02:27 +00:00
|
|
|
PathSet::PickRandomEstablishedPath(PathRole roles) const
|
2018-07-11 16:11:19 +00:00
|
|
|
{
|
2019-04-23 14:28:59 +00:00
|
|
|
std::vector< Path_ptr > established;
|
2019-03-03 15:01:05 +00:00
|
|
|
Lock_t l(&m_PathsMutex);
|
2018-07-11 16:11:19 +00:00
|
|
|
auto itr = m_Paths.begin();
|
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|
|
while(itr != m_Paths.end())
|
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|
|
{
|
2018-11-21 12:31:36 +00:00
|
|
|
if(itr->second->IsReady() && itr->second->SupportsAnyRoles(roles))
|
2018-07-11 16:11:19 +00:00
|
|
|
established.push_back(itr->second);
|
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|
|
++itr;
|
|
|
|
}
|
|
|
|
auto sz = established.size();
|
|
|
|
if(sz)
|
|
|
|
{
|
2019-02-18 10:35:16 +00:00
|
|
|
return established[randint() % sz];
|
2018-07-11 16:11:19 +00:00
|
|
|
}
|
2019-07-06 17:03:40 +00:00
|
|
|
|
|
|
|
return nullptr;
|
2018-07-11 16:11:19 +00:00
|
|
|
}
|
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|
2018-06-25 15:12:08 +00:00
|
|
|
} // namespace path
|
2018-08-17 19:49:58 +00:00
|
|
|
} // namespace llarp
|