config.hpp

#pragma once
 
#include <chrono>
#include <string>
 
#include <userver/dynamic_config/fwd.hpp>
#include <userver/formats/json_fwd.hpp>
#include <userver/yaml_config/fwd.hpp>
 
USERVER_NAMESPACE_BEGIN
 
namespace tracing {
class TracingManagerBase;
}  // namespace tracing
 
namespace server::http {
class HeadersPropagator;
}  // namespace server::http
 
namespace clients::http {
 
struct DeadlinePropagationConfig {
  bool update_header{true};
};
 
enum class CancellationPolicy {
  kIgnore,
  kCancel,
};
 
CancellationPolicy Parse(yaml_config::YamlConfig value,
                         formats::parse::To<CancellationPolicy>);
 
// Static config
struct ClientSettings final {
  std::string thread_name_prefix{};
  size_t io_threads{8};
  bool defer_events{false};
  DeadlinePropagationConfig deadline_propagation{};
  const tracing::TracingManagerBase* tracing_manager{nullptr};
  const server::http::HeadersPropagator* headers_propagator{nullptr};
  CancellationPolicy cancellation_policy{CancellationPolicy::kCancel};
};
 
ClientSettings Parse(const yaml_config::YamlConfig& value,
                     formats::parse::To<ClientSettings>);
 
}  // namespace clients::http
 
namespace clients::http::impl {
 
struct ThrottleConfig final {
  static constexpr size_t kNoLimit = -1;
 
  std::size_t http_connect_limit{kNoLimit};
  std::chrono::microseconds http_connect_rate{0};
  std::size_t https_connect_limit{kNoLimit};
  std::chrono::microseconds https_connect_rate{0};
  std::size_t per_host_connect_limit{kNoLimit};
  std::chrono::microseconds per_host_connect_rate{0};
};
 
ThrottleConfig Parse(const formats::json::Value& value,
                     formats::parse::To<ThrottleConfig>);
 
// Dynamic config
struct Config final {
  static constexpr std::size_t kDefaultConnectionPoolSize = 10000;
 
  std::size_t connection_pool_size{kDefaultConnectionPoolSize};
  std::string proxy;
  ThrottleConfig throttle;
};
 
Config ParseConfig(const dynamic_config::DocsMap& docs_map);
 
}  // namespace clients::http::impl
 
USERVER_NAMESPACE_END