run.hpp

Go to the documentation of this file.

#pragma once
 
/// @file userver/components/run.hpp
/// @brief Functions to start a service or tool with the specified
/// config and components::ComponentList.
 
#include <string>
 
#include <userver/logging/format.hpp>
#include <userver/utils/strong_typedef.hpp>
 
#include "component_list.hpp"
 
USERVER_NAMESPACE_BEGIN
 
/// Contains functions and types to start a userver based service/tool.
namespace components {
 
/// Data type to distinguish config path and in-memory config values in
/// components::Run() and components::RunOnce() functions.
struct InMemoryConfig : utils::StrongTypedef<InMemoryConfig, std::string> {
  using StrongTypedef::StrongTypedef;
};
 
/// Starts a server with the provided component list and config loaded from
/// file. Ropens the logging files on SIGUSR1.
///
/// @see utils::DaemonMain
void Run(const std::string& config_path,
         const std::optional<std::string>& config_vars_path,
         const std::optional<std::string>& config_vars_override_path,
         const ComponentList& component_list);
 
/// Starts a server with the provided component list and config.
/// Ropens the logging files on SIGUSR1.
///
/// @see utils::DaemonMain
void Run(const InMemoryConfig& config, const ComponentList& component_list);
 
/// Runs the component list once with the config loaded from file.
///
/// @see utils::DaemonMain
void RunOnce(const std::string& config_path,
             const std::optional<std::string>& config_vars_path,
             const std::optional<std::string>& config_vars_override_path,
             const ComponentList& component_list);
 
/// Runs the component list once with the config.
///
/// @see utils::DaemonMain
void RunOnce(const InMemoryConfig& config, const ComponentList& component_list);
 
void RunForPrintConfigSchema(const ComponentList& component_list);
 
}  // namespace components
 
USERVER_NAMESPACE_END