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https://github.com/qicosmos/rest_rpc.git
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qicosmos
47 lines
1.1 KiB
C++
47 lines
1.1 KiB
C++
#pragma once
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#include <tuple>
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#if __cplusplus > 201402L
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#include <string_view>
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using string_view = std::string_view;
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#else
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#ifdef ASIO_STANDALONE
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#include "string_view.hpp"
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using namespace nonstd;
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#else
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#include <boost/utility/string_view.hpp>
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using string_view = boost::string_view;
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#endif
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#endif
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#include "codec.h"
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namespace rest_rpc {
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inline bool has_error(string_view result) {
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if (result.empty()) {
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return true;
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}
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rpc_service::msgpack_codec codec;
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auto tp = codec.unpack<std::tuple<int>>(result.data(), result.size());
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return std::get<0>(tp) != 0;
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}
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template<typename T>
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inline T get_result(string_view result) {
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rpc_service::msgpack_codec codec;
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auto tp = codec.unpack<std::tuple<int, T>>(result.data(), result.size());
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return std::get<1>(tp);
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}
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template<typename T>
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inline T as(string_view result) {
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if (has_error(result)) {
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rpc_service::msgpack_codec codec;
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auto tp = codec.unpack<std::tuple<int, std::string>>(result.data(), result.size());
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throw std::logic_error(std::get<1>(tp));
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}
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return get_result<T>(result);
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}
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} |