const std::string& ToString(std::string& str) const
{
switch (type)
{
case EMPTY:
{
str = "";
return str;
}
case INTEGER:
{
Buffer tmp(64);
tmp.Printf("%lld", v.int_v);
str.assign(tmp.GetRawReadBuffer(), tmp.ReadableBytes());
return str;
}
case DOUBLE:
{
fast_dtoa(v.double_v, 10, str);
return str;
}
default:
{
str.assign(v.raw->GetRawReadBuffer(),
v.raw->ReadableBytes());
return str;
}
}
}
int Ardb::HIncrbyFloat(Context& ctx, RedisCommandFrame& cmd)
{
double increment, val = 0;
if (!GetDoubleValue(ctx, cmd.GetArguments()[2], increment))
{
return 0;
}
ValueObject meta;
int err = GetMetaValue(ctx, cmd.GetArguments()[0], HASH_META, meta);
CHECK_ARDB_RETURN_VALUE(ctx.reply, err);
Data value;
Data field(cmd.GetArguments()[1]);
if (0 == err)
{
HashGet(ctx, meta, field, value);
if (!value.GetDouble(val))
{
fill_error_reply(ctx.reply, "value is not a float or out of range");
return 0;
}
}
val += increment;
std::string tmp;
fast_dtoa(val, 10, tmp);
value.SetString(tmp, false);
HashSet(ctx, meta, field, value);
fill_str_reply(ctx.reply, tmp);
return 0;
}