Martin Slachta
60 lines
1002 B
C++
60 lines
1002 B
C++
#pragma once
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#include <cstring>
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#include <functional>
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#include <spdlog/fmt/fmt.h>
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namespace tw::net {
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class NetworkResult {
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private:
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int m_errno;
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NetworkResult(int e) :
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m_errno(e)
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{
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}
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public:
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bool is(int err) {
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return m_errno == err;
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}
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inline bool is_ok() {
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return m_errno == 0;
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}
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static NetworkResult ok() {
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return {0};
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}
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static NetworkResult from_errno(int e) {
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return NetworkResult(e);
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}
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NetworkResult& and_then(std::function<void(NetworkResult)> handler) {
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if(!is_ok()) {
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handler(*this);
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}
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return *this;
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}
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const char* mesg() const {
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return strerror(m_errno);
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}
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};
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}
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template<>
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struct fmt::formatter<tw::net::NetworkResult> : fmt::formatter<std::string>
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{
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auto format(tw::net::NetworkResult my, format_context &ctx) const -> decltype(ctx.out())
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{
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return formatter<string_view>::format(my.mesg(), ctx);
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}
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};
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