efl/src/lib/eina_cxx/eina_error.hh

106 lines
2.1 KiB
C++

#ifndef _EINA_ERROR_HH
#define _EINA_ERROR_HH
#include <Eina.h>
#include <system_error>
namespace efl { namespace eina {
using std::errc;
using std::system_error;
using std::error_code;
using std::error_condition;
typedef std::error_category system_error_category;
inline system_error_category const& get_generic_category()
{
return ::std::generic_category();
}
inline system_error_category const& get_system_category()
{
return ::std::system_category();
}
enum error_type {};
struct error_category : system_error_category
{
const char* name() const throw()
{
return "eina";
}
bool equivalent(int code, eina::error_condition const& condition) const throw()
{
return code == condition.value();
}
bool equivalent(eina::error_code const& code, int condition) const throw()
{
return code.value() == condition;
}
std::string message(int condition) const
{
const char* e = ::eina_error_msg_get(condition);
return e? e : "::eina_error_msg_get returned NULL. No error message available";
}
};
inline eina::system_error_category& eina_error_category()
{
static error_category _error_category;
return _error_category;
}
inline eina::error_code get_error_code()
{
Eina_Error error = eina_error_get();
if(error)
{
eina_error_set(0);
return eina::error_code(error, eina_error_category());
}
else
return eina::error_code();
}
inline eina::error_condition get_error_condition()
{
Eina_Error error = eina_error_get();
if(error)
{
eina_error_set(0);
return eina::error_condition(error, eina_error_category());
}
else
return eina::error_condition();
}
inline error_type get_error_code_enum()
{
return static_cast<error_type>( ::eina_error_get() );
}
inline void throw_on_error()
{
eina::error_code ec = get_error_code();
if(ec)
{
throw eina::system_error(ec, "EFL Eina Error");
}
}
} }
namespace std {
template <> struct is_error_condition_enum< ::efl::eina::error_type> : true_type {};
template <> struct is_error_code_enum< ::efl::eina::error_type> : true_type {};
}
#endif