lokinet/llarp/exit/context.cpp
Jason Rhinelander b81f7025c9
Replace logging with oxen-logger
Replaces custom logging system with spdlog-based oxen logging.  This
commit mainly replaces the backend logging with the spdlog-based system,
but doesn't (yet) convert all the existing LogWarn, etc. to use the new
format-based logging.

New logging statements will look like:

    llarp::log::warning(cat, "blah: {}", val);

where `cat` should be set up in each .cpp or cluster of .cpp files, as
described in the oxen-logging README.

As part of spdlog we get fmt, which gives us nice format strings, where
are applied generously in this commit.

Making types printable now requires two steps:
- add a ToString() method
- add this specialization:

      template <>
      constexpr inline bool llarp::IsToStringFormattable<llarp::Whatever> = true;

This will then allow the type to be printed as a "{}" value in a
fmt::format string.  This is applied to all our printable types here,
and all of the `operator<<` are removed.

This commit also:
- replaces various uses of `operator<<` to ToString()
- replaces various uses of std::stringstream with either fmt::format or
  plain std::string
- Rename some to_string and toString() methods to ToString() for
  consistency (and to work with fmt)
- Replace `stringify(...)` and `make_exception` usage with fmt::format
  (and remove stringify/make_exception from util/str.hpp).
2022-07-15 22:17:59 -03:00

128 lines
2.8 KiB
C++

#include "context.hpp"
#include <memory>
#include <stdexcept>
namespace llarp
{
namespace exit
{
Context::Context(AbstractRouter* r) : m_Router(r)
{}
Context::~Context() = default;
void
Context::Tick(llarp_time_t now)
{
{
auto itr = m_Exits.begin();
while (itr != m_Exits.end())
{
itr->second->Tick(now);
++itr;
}
}
{
auto itr = m_Closed.begin();
while (itr != m_Closed.end())
{
if ((*itr)->ShouldRemove())
itr = m_Closed.erase(itr);
else
++itr;
}
}
}
void
Context::Stop()
{
auto itr = m_Exits.begin();
while (itr != m_Exits.end())
{
itr->second->Stop();
m_Closed.emplace_back(std::move(itr->second));
itr = m_Exits.erase(itr);
}
}
util::StatusObject
Context::ExtractStatus() const
{
util::StatusObject obj{};
auto itr = m_Exits.begin();
while (itr != m_Exits.end())
{
obj[itr->first] = itr->second->ExtractStatus();
++itr;
}
return obj;
}
void
Context::CalculateExitTraffic(TrafficStats& stats)
{
auto itr = m_Exits.begin();
while (itr != m_Exits.end())
{
itr->second->CalculateTrafficStats(stats);
++itr;
}
}
exit::Endpoint*
Context::FindEndpointForPath(const PathID_t& path) const
{
auto itr = m_Exits.begin();
while (itr != m_Exits.end())
{
auto ep = itr->second->FindEndpointByPath(path);
if (ep)
return ep;
++itr;
}
return nullptr;
}
bool
Context::ObtainNewExit(const PubKey& pk, const PathID_t& path, bool permitInternet)
{
auto itr = m_Exits.begin();
while (itr != m_Exits.end())
{
if (itr->second->AllocateNewExit(pk, path, permitInternet))
return true;
++itr;
}
return false;
}
std::shared_ptr<handlers::ExitEndpoint>
Context::GetExitEndpoint(std::string name) const
{
if (auto itr = m_Exits.find(name); itr != m_Exits.end())
{
return itr->second;
}
return nullptr;
}
void
Context::AddExitEndpoint(
const std::string& name, const NetworkConfig& networkConfig, const DnsConfig& dnsConfig)
{
if (m_Exits.find(name) != m_Exits.end())
throw std::invalid_argument{fmt::format("An exit with name {} already exists", name)};
auto endpoint = std::make_unique<handlers::ExitEndpoint>(name, m_Router);
endpoint->Configure(networkConfig, dnsConfig);
// add endpoint
if (!endpoint->Start())
throw std::runtime_error{fmt::format("Failed to start endpoint {}", name)};
m_Exits.emplace(name, std::move(endpoint));
}
} // namespace exit
} // namespace llarp