| 3 | #include <util/generic/yexception.h> |
| 4 | |
| 5 | class TIOStatus { |
| 6 | public: |
| 7 | TIOStatus(int status) noexcept |
| 8 | : Status_(status) |
| 9 | { |
| 10 | } |
| 11 | |
| 12 | static TIOStatus Error(int status) noexcept { |
| 13 | return TIOStatus(status); |
| 14 | } |
| 15 | |
| 16 | static TIOStatus Error() noexcept { |
| 17 | return TIOStatus(LastSystemError()); |
| 18 | } |
| 19 | |
| 20 | static TIOStatus Success() noexcept { |
| 21 | return TIOStatus(0); |
| 22 | } |
| 23 | |
| 24 | void Check() const { |
| 25 | if (Status_) { |
| 26 | ythrow TSystemError(Status_) << "io error"; |
| 27 | } |
| 28 | } |
| 29 | |
| 30 | bool Failed() const noexcept { |
| 31 | return (bool)Status_; |
| 32 | } |
| 33 | |
| 34 | bool Succeed() const noexcept { |
| 35 | return !Failed(); |
| 36 | } |
| 37 | |
| 38 | int Status() const noexcept { |
| 39 | return Status_; |
| 40 | } |
| 41 | |
| 42 | private: |
| 43 | int Status_; |
| 44 | }; |
| 45 | |
| 46 | |
| 47 | class TContIOStatus { |