lokinet/llarp/profiling.hpp
2021-05-04 17:01:29 -04:00

125 lines
2.8 KiB
C++

#pragma once
#include "path/path.hpp"
#include "router_id.hpp"
#include "util/bencode.hpp"
#include "util/thread/threading.hpp"
#include "util/thread/annotations.hpp"
#include <map>
namespace llarp
{
struct RouterProfile
{
static constexpr size_t MaxSize = 256;
uint64_t connectTimeoutCount = 0;
uint64_t connectGoodCount = 0;
uint64_t pathSuccessCount = 0;
uint64_t pathFailCount = 0;
uint64_t pathTimeoutCount = 0;
llarp_time_t lastUpdated = 0s;
llarp_time_t lastDecay = 0s;
uint64_t version = LLARP_PROTO_VERSION;
bool
BEncode(llarp_buffer_t* buf) const;
bool
DecodeKey(const llarp_buffer_t& k, llarp_buffer_t* buf);
bool
IsGood(uint64_t chances) const;
bool
IsGoodForConnect(uint64_t chances) const;
bool
IsGoodForPath(uint64_t chances) const;
/// decay stats
void
Decay();
// rotate stats if timeout reached
void
Tick();
};
struct Profiling
{
Profiling();
inline static const int profiling_chances = 4;
/// generic variant
bool
IsBad(const RouterID& r, uint64_t chances = profiling_chances) EXCLUDES(m_ProfilesMutex);
/// check if this router should have paths built over it
bool
IsBadForPath(const RouterID& r, uint64_t chances = profiling_chances) EXCLUDES(m_ProfilesMutex);
/// check if this router should be connected directly to
bool
IsBadForConnect(const RouterID& r, uint64_t chances = profiling_chances)
EXCLUDES(m_ProfilesMutex);
void
MarkConnectTimeout(const RouterID& r) EXCLUDES(m_ProfilesMutex);
void
MarkConnectSuccess(const RouterID& r) EXCLUDES(m_ProfilesMutex);
void
MarkPathTimeout(path::Path* p) EXCLUDES(m_ProfilesMutex);
void
MarkPathFail(path::Path* p) EXCLUDES(m_ProfilesMutex);
void
MarkPathSuccess(path::Path* p) EXCLUDES(m_ProfilesMutex);
void
MarkHopFail(const RouterID& r) EXCLUDES(m_ProfilesMutex);
void
ClearProfile(const RouterID& r) EXCLUDES(m_ProfilesMutex);
void
Tick() EXCLUDES(m_ProfilesMutex);
bool
BEncode(llarp_buffer_t* buf) const;
bool
BDecode(llarp_buffer_t* buf);
bool
DecodeKey(const llarp_buffer_t& k, llarp_buffer_t* buf) NO_THREAD_SAFETY_ANALYSIS;
// disabled because we do load -> bencode::BDecodeReadFromFile -> DecodeKey
bool
Load(const fs::path fname) EXCLUDES(m_ProfilesMutex);
bool
Save(const fs::path fname) EXCLUDES(m_ProfilesMutex);
bool
ShouldSave(llarp_time_t now) const;
void
Disable();
void
Enable();
private:
mutable util::Mutex m_ProfilesMutex; // protects m_Profiles
std::map<RouterID, RouterProfile> m_Profiles GUARDED_BY(m_ProfilesMutex);
llarp_time_t m_LastSave = 0s;
std::atomic<bool> m_DisableProfiling;
};
} // namespace llarp