libsigrok/bindings/cxx/ConfigKey_methods.cpp

124 lines
2.8 KiB
C++

#include <config.h>
const DataType *ConfigKey::data_type() const
{
const struct sr_key_info *info = sr_key_info_get(SR_KEY_CONFIG, id());
if (!info)
throw Error(SR_ERR_NA);
return DataType::get(info->datatype);
}
string ConfigKey::identifier() const
{
const struct sr_key_info *info = sr_key_info_get(SR_KEY_CONFIG, id());
if (!info)
throw Error(SR_ERR_NA);
return valid_string(info->id);
}
string ConfigKey::description() const
{
const struct sr_key_info *info = sr_key_info_get(SR_KEY_CONFIG, id());
if (!info)
throw Error(SR_ERR_NA);
return valid_string(info->name);
}
const ConfigKey *ConfigKey::get_by_identifier(string identifier)
{
const struct sr_key_info *info = sr_key_info_name_get(SR_KEY_CONFIG, identifier.c_str());
if (!info)
throw Error(SR_ERR_ARG);
return get(info->key);
}
#ifndef HAVE_STOI_STOD
/* Fallback implementation of stoi and stod */
#include <cstdlib>
#include <cerrno>
#include <stdexcept>
#include <limits>
static inline int stoi( const std::string& str )
{
char *endptr;
errno = 0;
const long ret = std::strtol(str.c_str(), &endptr, 10);
if (endptr == str.c_str())
throw std::invalid_argument("stoi");
else if (errno == ERANGE ||
ret < std::numeric_limits<int>::min() ||
ret > std::numeric_limits<int>::max())
throw std::out_of_range("stoi");
else
return ret;
}
static inline double stod( const std::string& str )
{
char *endptr;
errno = 0;
const double ret = std::strtod(str.c_str(), &endptr);
if (endptr == str.c_str())
throw std::invalid_argument("stod");
else if (errno == ERANGE)
throw std::out_of_range("stod");
else
return ret;
}
#endif
Glib::VariantBase ConfigKey::parse_string(string value, enum sr_datatype dt)
{
GVariant *variant;
uint64_t p, q;
switch (dt)
{
case SR_T_UINT64:
check(sr_parse_sizestring(value.c_str(), &p));
variant = g_variant_new_uint64(p);
break;
case SR_T_STRING:
variant = g_variant_new_string(value.c_str());
break;
case SR_T_BOOL:
variant = g_variant_new_boolean(sr_parse_boolstring(value.c_str()));
break;
case SR_T_FLOAT:
try {
variant = g_variant_new_double(stod(value));
} catch (invalid_argument&) {
throw Error(SR_ERR_ARG);
}
break;
case SR_T_RATIONAL_PERIOD:
check(sr_parse_period(value.c_str(), &p, &q));
variant = g_variant_new("(tt)", p, q);
break;
case SR_T_RATIONAL_VOLT:
check(sr_parse_voltage(value.c_str(), &p, &q));
variant = g_variant_new("(tt)", p, q);
break;
case SR_T_INT32:
try {
variant = g_variant_new_int32(stoi(value));
} catch (invalid_argument&) {
throw Error(SR_ERR_ARG);
}
break;
default:
throw Error(SR_ERR_BUG);
}
return Glib::VariantBase(variant, false);
}
Glib::VariantBase ConfigKey::parse_string(string value) const
{
enum sr_datatype dt = (enum sr_datatype)(data_type()->id());
return parse_string(value, dt);
}