mirror of
https://github.com/oxen-io/lokinet.git
synced 2024-11-03 23:15:52 +00:00
7caa87862e
All #ifndef guards on headers have been removed, I think, in favor of #pragma once Headers are now included as `#include "filename"` if the included file resides in the same directory as the file including it, or any subdirectory therein. Otherwise they are included as `#include <project/top/dir/relative/path/filename>` The above does not include system/os headers.
327 lines
7.8 KiB
C++
327 lines
7.8 KiB
C++
#include "profiling.hpp"
|
|
|
|
#include <fstream>
|
|
#include "util/fs.hpp"
|
|
|
|
namespace llarp
|
|
{
|
|
bool
|
|
RouterProfile::BEncode(llarp_buffer_t* buf) const
|
|
{
|
|
if (!bencode_start_dict(buf))
|
|
return false;
|
|
|
|
if (!BEncodeWriteDictInt("g", connectGoodCount, buf))
|
|
return false;
|
|
if (!BEncodeWriteDictInt("p", pathSuccessCount, buf))
|
|
return false;
|
|
if (!BEncodeWriteDictInt("q", pathTimeoutCount, buf))
|
|
return false;
|
|
if (!BEncodeWriteDictInt("s", pathFailCount, buf))
|
|
return false;
|
|
if (!BEncodeWriteDictInt("t", connectTimeoutCount, buf))
|
|
return false;
|
|
if (!BEncodeWriteDictInt("u", lastUpdated.count(), buf))
|
|
return false;
|
|
if (!BEncodeWriteDictInt("v", version, buf))
|
|
return false;
|
|
|
|
return bencode_end(buf);
|
|
}
|
|
|
|
bool
|
|
RouterProfile::DecodeKey(const llarp_buffer_t& k, llarp_buffer_t* buf)
|
|
{
|
|
bool read = false;
|
|
if (!BEncodeMaybeReadDictInt("g", connectGoodCount, read, k, buf))
|
|
return false;
|
|
if (!BEncodeMaybeReadDictInt("t", connectTimeoutCount, read, k, buf))
|
|
return false;
|
|
if (!BEncodeMaybeReadDictInt("u", lastUpdated, read, k, buf))
|
|
return false;
|
|
if (!BEncodeMaybeReadDictInt("v", version, read, k, buf))
|
|
return false;
|
|
if (!BEncodeMaybeReadDictInt("s", pathFailCount, read, k, buf))
|
|
return false;
|
|
if (!BEncodeMaybeReadDictInt("p", pathSuccessCount, read, k, buf))
|
|
return false;
|
|
if (!BEncodeMaybeReadDictInt("q", pathTimeoutCount, read, k, buf))
|
|
return false;
|
|
return read;
|
|
}
|
|
|
|
void
|
|
RouterProfile::Decay()
|
|
{
|
|
connectGoodCount /= 2;
|
|
connectTimeoutCount /= 2;
|
|
pathSuccessCount /= 2;
|
|
pathFailCount /= 2;
|
|
pathTimeoutCount /= 2;
|
|
lastDecay = llarp::time_now_ms();
|
|
}
|
|
|
|
void
|
|
RouterProfile::Tick()
|
|
{
|
|
static constexpr auto updateInterval = 30min;
|
|
const auto now = llarp::time_now_ms();
|
|
if (lastDecay < now && now - lastDecay > updateInterval)
|
|
Decay();
|
|
}
|
|
|
|
bool
|
|
RouterProfile::IsGood(uint64_t chances) const
|
|
{
|
|
if (connectTimeoutCount > chances)
|
|
return connectTimeoutCount < connectGoodCount && (pathSuccessCount * chances) > pathFailCount;
|
|
return (pathSuccessCount * chances) > pathFailCount;
|
|
}
|
|
|
|
static bool constexpr checkIsGood(uint64_t fails, uint64_t success, uint64_t chances)
|
|
{
|
|
if (fails > 0 && (fails + success) >= chances)
|
|
return (success / fails) > 1;
|
|
if (success == 0)
|
|
return fails < chances;
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
RouterProfile::IsGoodForConnect(uint64_t chances) const
|
|
{
|
|
return checkIsGood(connectTimeoutCount, connectGoodCount, chances);
|
|
}
|
|
|
|
bool
|
|
RouterProfile::IsGoodForPath(uint64_t chances) const
|
|
{
|
|
return checkIsGood(pathFailCount, pathSuccessCount, chances)
|
|
and checkIsGood(pathTimeoutCount, pathSuccessCount, chances);
|
|
}
|
|
|
|
Profiling::Profiling() : m_DisableProfiling(false)
|
|
{}
|
|
|
|
void
|
|
Profiling::Disable()
|
|
{
|
|
m_DisableProfiling.store(true);
|
|
}
|
|
|
|
void
|
|
Profiling::Enable()
|
|
{
|
|
m_DisableProfiling.store(false);
|
|
}
|
|
|
|
bool
|
|
Profiling::IsBadForConnect(const RouterID& r, uint64_t chances)
|
|
{
|
|
if (m_DisableProfiling.load())
|
|
return false;
|
|
util::Lock lock{m_ProfilesMutex};
|
|
auto itr = m_Profiles.find(r);
|
|
if (itr == m_Profiles.end())
|
|
return false;
|
|
return not itr->second.IsGoodForConnect(chances);
|
|
}
|
|
|
|
bool
|
|
Profiling::IsBadForPath(const RouterID& r, uint64_t chances)
|
|
{
|
|
if (m_DisableProfiling.load())
|
|
return false;
|
|
util::Lock lock{m_ProfilesMutex};
|
|
auto itr = m_Profiles.find(r);
|
|
if (itr == m_Profiles.end())
|
|
return false;
|
|
return not itr->second.IsGoodForPath(chances);
|
|
}
|
|
|
|
bool
|
|
Profiling::IsBad(const RouterID& r, uint64_t chances)
|
|
{
|
|
if (m_DisableProfiling.load())
|
|
return false;
|
|
util::Lock lock{m_ProfilesMutex};
|
|
auto itr = m_Profiles.find(r);
|
|
if (itr == m_Profiles.end())
|
|
return false;
|
|
return not itr->second.IsGood(chances);
|
|
}
|
|
|
|
void
|
|
Profiling::Tick()
|
|
{
|
|
util::Lock lock(m_ProfilesMutex);
|
|
std::for_each(m_Profiles.begin(), m_Profiles.end(), [](auto& item) { item.second.Tick(); });
|
|
}
|
|
|
|
void
|
|
Profiling::MarkConnectTimeout(const RouterID& r)
|
|
{
|
|
util::Lock lock{m_ProfilesMutex};
|
|
m_Profiles[r].connectTimeoutCount += 1;
|
|
m_Profiles[r].lastUpdated = llarp::time_now_ms();
|
|
}
|
|
|
|
void
|
|
Profiling::MarkConnectSuccess(const RouterID& r)
|
|
{
|
|
util::Lock lock{m_ProfilesMutex};
|
|
m_Profiles[r].connectGoodCount += 1;
|
|
m_Profiles[r].lastUpdated = llarp::time_now_ms();
|
|
}
|
|
|
|
void
|
|
Profiling::ClearProfile(const RouterID& r)
|
|
{
|
|
util::Lock lock{m_ProfilesMutex};
|
|
m_Profiles.erase(r);
|
|
}
|
|
|
|
void
|
|
Profiling::MarkHopFail(const RouterID& r)
|
|
{
|
|
util::Lock lock{m_ProfilesMutex};
|
|
m_Profiles[r].pathFailCount += 1;
|
|
m_Profiles[r].lastUpdated = llarp::time_now_ms();
|
|
}
|
|
|
|
void
|
|
Profiling::MarkPathFail(path::Path* p)
|
|
{
|
|
util::Lock lock{m_ProfilesMutex};
|
|
size_t idx = 0;
|
|
for (const auto& hop : p->hops)
|
|
{
|
|
// don't mark first hop as failure because we are connected to it directly
|
|
if (idx)
|
|
{
|
|
m_Profiles[hop.rc.pubkey].pathFailCount += 1;
|
|
m_Profiles[hop.rc.pubkey].lastUpdated = llarp::time_now_ms();
|
|
}
|
|
++idx;
|
|
}
|
|
}
|
|
|
|
void
|
|
Profiling::MarkPathTimeout(path::Path* p)
|
|
{
|
|
util::Lock lock{m_ProfilesMutex};
|
|
size_t idx = 0;
|
|
for (const auto& hop : p->hops)
|
|
{
|
|
if (idx)
|
|
{
|
|
m_Profiles[hop.rc.pubkey].pathTimeoutCount += 1;
|
|
m_Profiles[hop.rc.pubkey].lastUpdated = llarp::time_now_ms();
|
|
}
|
|
++idx;
|
|
}
|
|
}
|
|
|
|
void
|
|
Profiling::MarkPathSuccess(path::Path* p)
|
|
{
|
|
util::Lock lock{m_ProfilesMutex};
|
|
const auto sz = p->hops.size();
|
|
for (const auto& hop : p->hops)
|
|
{
|
|
// redeem previous fails by halfing the fail count and setting timeout to zero
|
|
m_Profiles[hop.rc.pubkey].pathFailCount /= 2;
|
|
m_Profiles[hop.rc.pubkey].pathTimeoutCount = 0;
|
|
// mark success at hop
|
|
m_Profiles[hop.rc.pubkey].pathSuccessCount += sz;
|
|
m_Profiles[hop.rc.pubkey].lastUpdated = llarp::time_now_ms();
|
|
}
|
|
}
|
|
|
|
bool
|
|
Profiling::Save(const fs::path fpath)
|
|
{
|
|
const size_t sz = (m_Profiles.size() * (RouterProfile::MaxSize + 32 + 8)) + 8;
|
|
|
|
std::vector<byte_t> tmp(sz, 0);
|
|
llarp_buffer_t buf(tmp);
|
|
|
|
{
|
|
util::Lock lock{m_ProfilesMutex};
|
|
if (not BEncode(&buf))
|
|
return false;
|
|
}
|
|
|
|
buf.sz = buf.cur - buf.base;
|
|
auto optional_f = util::OpenFileStream<std::ofstream>(fpath, std::ios::binary);
|
|
if (!optional_f)
|
|
return false;
|
|
auto& f = *optional_f;
|
|
if (not f.is_open())
|
|
return false;
|
|
|
|
f.write(reinterpret_cast<const char*>(buf.base), buf.sz);
|
|
if (not f.good())
|
|
return false;
|
|
m_LastSave = llarp::time_now_ms();
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
Profiling::BEncode(llarp_buffer_t* buf) const
|
|
{
|
|
if (!bencode_start_dict(buf))
|
|
return false;
|
|
|
|
auto itr = m_Profiles.begin();
|
|
while (itr != m_Profiles.end())
|
|
{
|
|
if (!itr->first.BEncode(buf))
|
|
return false;
|
|
if (!itr->second.BEncode(buf))
|
|
return false;
|
|
++itr;
|
|
}
|
|
return bencode_end(buf);
|
|
}
|
|
|
|
bool
|
|
Profiling::DecodeKey(const llarp_buffer_t& k, llarp_buffer_t* buf)
|
|
{
|
|
if (k.sz != 32)
|
|
return false;
|
|
RouterProfile profile;
|
|
if (!bencode_decode_dict(profile, buf))
|
|
return false;
|
|
RouterID pk = k.base;
|
|
return m_Profiles.emplace(pk, profile).second;
|
|
}
|
|
|
|
bool
|
|
Profiling::BDecode(llarp_buffer_t* buf)
|
|
{
|
|
return bencode_decode_dict(*this, buf);
|
|
}
|
|
|
|
bool
|
|
Profiling::Load(const fs::path fname)
|
|
{
|
|
util::Lock lock{m_ProfilesMutex};
|
|
m_Profiles.clear();
|
|
if (!BDecodeReadFile(fname, *this))
|
|
{
|
|
llarp::LogWarn("failed to load router profiles from ", fname);
|
|
return false;
|
|
}
|
|
m_LastSave = llarp::time_now_ms();
|
|
return true;
|
|
}
|
|
|
|
bool
|
|
Profiling::ShouldSave(llarp_time_t now) const
|
|
{
|
|
auto dlt = now - m_LastSave;
|
|
return dlt > 1min;
|
|
}
|
|
} // namespace llarp
|