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Anatolii Cherednichenko 2022-08-30 02:11:28 +03:00
parent 3ddb370718
commit 55534ea002
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174
libi2pd/Config.h
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@ -25,103 +25,101 @@
*/
namespace i2p {
namespace config {
extern boost::program_options::variables_map m_Options;
namespace config {
extern boost::program_options::variables_map m_Options;
/**
* @brief Initialize list of acceptable parameters
*
* Should be called before any Parse* functions.
*/
void Init();
/**
* @brief Initialize list of acceptable parameters
*
* Should be called before any Parse* functions.
*/
void Init();
/**
* @brief Parse cmdline parameters, and show help if requested
* @param argc Cmdline arguments count, should be passed from main().
* @param argv Cmdline parameters array, should be passed from main()
*
* If --help is given in parameters, shows its list with description
* and terminates the program with exitcode 0.
*
* In case of parameter misuse boost throws an exception.
* We internally handle type boost::program_options::unknown_option,
* and then terminate the program with exitcode 1.
*
* Other exceptions will be passed to higher level.
*/
void ParseCmdline(int argc, char* argv[], bool ignoreUnknown = false);
/**
* @brief Parse cmdline parameters, and show help if requested
* @param argc Cmdline arguments count, should be passed from main().
* @param argv Cmdline parameters array, should be passed from main()
*
* If --help is given in parameters, shows its list with description
* and terminates the program with exitcode 0.
*
* In case of parameter misuse boost throws an exception.
* We internally handle type boost::program_options::unknown_option,
* and then terminate the program with exitcode 1.
*
* Other exceptions will be passed to higher level.
*/
void ParseCmdline(int argc, char *argv[], bool ignoreUnknown = false);
/**
* @brief Load and parse given config file
* @param path Path to config file
*
* If error occurred when opening file path is points to,
* we show the error message and terminate program.
*
* In case of parameter misuse boost throws an exception.
* We internally handle type boost::program_options::unknown_option,
* and then terminate program with exitcode 1.
*
* Other exceptions will be passed to higher level.
*/
void ParseConfig(const std::string& path);
/**
* @brief Load and parse given config file
* @param path Path to config file
*
* If error occurred when opening file path is points to,
* we show the error message and terminate program.
*
* In case of parameter misuse boost throws an exception.
* We internally handle type boost::program_options::unknown_option,
* and then terminate program with exitcode 1.
*
* Other exceptions will be passed to higher level.
*/
void ParseConfig(const std::string &path);
/**
* @brief Used to combine options from cmdline, config and default values
*/
void Finalize();
/**
* @brief Used to combine options from cmdline, config and default values
*/
void Finalize();
/**
* @brief Accessor to parameters by name
* @param name Name of the requested parameter
* @param value Variable where to store option
* @return this function returns false if parameter not found
*
* Example: uint16_t port; GetOption("sam.port", port);
*/
template<typename T>
bool GetOption(const char *name, T& value)
{
if (!m_Options.count(name))
return false;
value = m_Options[name].as<T>();
return true;
}
/**
* @brief Accessor to parameters by name
* @param name Name of the requested parameter
* @param value Variable where to store option
* @return this function returns false if parameter not found
*
* Example: uint16_t port; GetOption("sam.port", port);
*/
template<typename T>
bool GetOption(const char *name, T &value) {
if (!m_Options.count(name))
return false;
value = m_Options[name].as<T>();
return true;
}
template<typename T>
bool GetOption(const std::string& name, T& value)
{
return GetOption (name.c_str (), value);
}
template<typename T>
bool GetOption(const std::string &name, T &value) {
return GetOption(name.c_str(), value);
}
bool GetOptionAsAny(const char *name, boost::any& value);
bool GetOptionAsAny(const std::string& name, boost::any& value);
bool GetOptionAsAny(const char *name, boost::any &value);
/**
* @brief Set value of given parameter
* @param name Name of settable parameter
* @param value New parameter value
* @return true if value set up successful, false otherwise
*
* Example: uint16_t port = 2827; SetOption("bob.port", port);
*/
template<typename T>
bool SetOption(const char *name, const T& value)
{
if (!m_Options.count(name))
return false;
m_Options.at(name).value() = value;
notify(m_Options);
return true;
}
bool GetOptionAsAny(const std::string &name, boost::any &value);
/**
* @brief Check is value explicitly given or default
* @param name Name of checked parameter
* @return true if value set to default, false otherwise
*/
bool IsDefault(const char *name);
}
/**
* @brief Set value of given parameter
* @param name Name of settable parameter
* @param value New parameter value
* @return true if value set up successful, false otherwise
*
* Example: uint16_t port = 2827; SetOption("bob.port", port);
*/
template<typename T>
bool SetOption(const char *name, const T &value) {
if (!m_Options.count(name))
return false;
m_Options.at(name).value() = value;
notify(m_Options);
return true;
}
/**
* @brief Check is value explicitly given or default
* @param name Name of checked parameter
* @return true if value set to default, false otherwise
*/
bool IsDefault(const char *name);
}
}
#endif // CONFIG_H