| src/examples/cpp03/chat/chat_message.hpp | src/examples/cpp11/chat/chat_message.hpp |
|---|
| ⋮ | ⋮ |
| 1 | // | 1 | // |
| 2 | //·chat_message.hpp | 2 | //·chat_message.hpp |
| 3 | //·~~~~~~~~~~~~~~~~ | 3 | //·~~~~~~~~~~~~~~~~ |
| 4 | // | 4 | // |
| 5 | //·Copyright·(c)·2003-2022·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com) | 5 | //·Copyright·(c)·2003-2022·Christopher·M.·Kohlhoff·(chris·at·kohlhoff·dot·com) |
| 6 | // | 6 | // |
| 7 | //·Distributed·under·the·Boost·Software·License,·Version·1.0.·(See·accompanying | 7 | //·Distributed·under·the·Boost·Software·License,·Version·1.0.·(See·accompanying |
| 8 | //·file·LICENSE_1_0.txt·or·copy·at·http://www.boost.org/LICENSE_1_0.txt) | 8 | //·file·LICENSE_1_0.txt·or·copy·at·http://www.boost.org/LICENSE_1_0.txt) |
| 9 | // | 9 | // |
| 10 | | 10 | |
| 11 | #ifndef·CHAT_MESSAGE_HPP | 11 | #ifndef·CHAT_MESSAGE_HPP |
| 12 | #define·CHAT_MESSAGE_HPP | 12 | #define·CHAT_MESSAGE_HPP |
| 13 | | 13 | |
| 14 | #include·<cstdio> | 14 | #include·<cstdio> |
| 15 | #include·<cstdlib> | 15 | #include·<cstdlib> |
| 16 | #include·<cstring> | 16 | #include·<cstring> |
| 17 | | 17 | |
| 18 | class·chat_message | 18 | class·chat_message |
| 19 | { | 19 | { |
| 20 | public: | 20 | public: |
| 21 | ··enum | 21 | ··static·constexpr·std::size_t·header_length·=·4; |
| 22 | ··{ | 22 | ··static·constexpr·std::size_t·max_body_length·=·512; |
| 23 | ····header_length·=·4, | |
| 24 | ····max_body_length·=·512 | |
| 25 | ··}; | |
| 26 | | 23 | |
| 27 | ··chat_message() | 24 | ··chat_message() |
| 28 | ····:·body_length_(0) | 25 | ····:·body_length_(0) |
| 29 | ··{ | 26 | ··{ |
| 30 | ··} | 27 | ··} |
| 31 | | 28 | |
| 32 | ··const·char*·data()·const | 29 | ··const·char*·data()·const |
| 33 | ··{ | 30 | ··{ |
| 34 | ····return·data_; | 31 | ····return·data_; |
| 35 | ··} | 32 | ··} |
| 36 | | 33 | |
| 37 | ··char*·data() | 34 | ··char*·data() |
| 38 | ··{ | 35 | ··{ |
| 39 | ····return·data_; | 36 | ····return·data_; |
| 40 | ··} | 37 | ··} |
| 41 | | 38 | |
| 42 | ··size_t·length()·const | 39 | ··std::size_t·length()·const |
| 43 | ··{ | 40 | ··{ |
| 44 | ····return·header_length·+·body_length_; | 41 | ····return·header_length·+·body_length_; |
| 45 | ··} | 42 | ··} |
| 46 | | 43 | |
| 47 | ··const·char*·body()·const | 44 | ··const·char*·body()·const |
| 48 | ··{ | 45 | ··{ |
| 49 | ····return·data_·+·header_length; | 46 | ····return·data_·+·header_length; |
| 50 | ··} | 47 | ··} |
| 51 | | 48 | |
| 52 | ··char*·body() | 49 | ··char*·body() |
| 53 | ··{ | 50 | ··{ |
| 54 | ····return·data_·+·header_length; | 51 | ····return·data_·+·header_length; |
| 55 | ··} | 52 | ··} |
| 56 | | 53 | |
| 57 | ··size_t·body_length()·const | 54 | ··std::size_t·body_length()·const |
| 58 | ··{ | 55 | ··{ |
| 59 | ····return·body_length_; | 56 | ····return·body_length_; |
| 60 | ··} | 57 | ··} |
| 61 | | 58 | |
| 62 | ··void·body_length(size_t·new_length) | 59 | ··void·body_length(std::size_t·new_length) |
| 63 | ··{ | 60 | ··{ |
| 64 | ····body_length_·=·new_length; | 61 | ····body_length_·=·new_length; |
| 65 | ····if·(body_length_·>·max_body_length) | 62 | ····if·(body_length_·>·max_body_length) |
| 66 | ······body_length_·=·max_body_length; | 63 | ······body_length_·=·max_body_length; |
| 67 | ··} | 64 | ··} |
| 68 | | 65 | |
| 69 | ··bool·decode_header() | 66 | ··bool·decode_header() |
| 70 | ··{ | 67 | ··{ |
| 71 | ····using·namespace·std;·//·For·strncat·and·atoi. | |
| 72 | ····char·header[header_length·+·1]·=·""; | 68 | ····char·header[header_length·+·1]·=·""; |
| 73 | ····strncat(header,·data_,·header_length); | 69 | ····std::strncat(header,·data_,·header_length); |
| 74 | ····body_length_·=·atoi(header); | 70 | ····body_length_·=·std::atoi(header); |
| 75 | ····if·(body_length_·>·max_body_length) | 71 | ····if·(body_length_·>·max_body_length) |
| 76 | ····{ | 72 | ····{ |
| 77 | ······body_length_·=·0; | 73 | ······body_length_·=·0; |
| 78 | ······return·false; | 74 | ······return·false; |
| 79 | ····} | 75 | ····} |
| 80 | ····return·true; | 76 | ····return·true; |
| 81 | ··} | 77 | ··} |
| 82 | | 78 | |
| 83 | ··void·encode_header() | 79 | ··void·encode_header() |
| 84 | ··{ | 80 | ··{ |
| 85 | ····using·namespace·std;·//·For·sprintf·and·memcpy. | |
| 86 | ····char·header[header_length·+·1]·=·""; | 81 | ····char·header[header_length·+·1]·=·""; |
| 87 | ····sprintf(header,·"%4d",·static_cast<int>(body_length_)); | 82 | ····std::sprintf(header,·"%4d",·static_cast<int>(body_length_)); |
| 88 | ····memcpy(data_,·header,·header_length); | 83 | ····std::memcpy(data_,·header,·header_length); |
| 89 | ··} | 84 | ··} |
| 90 | | 85 | |
| 91 | private: | 86 | private: |
| 92 | ··char·data_[header_length·+·max_body_length]; | 87 | ··char·data_[header_length·+·max_body_length]; |
| 93 | ··size_t·body_length_; | 88 | ··std::size_t·body_length_; |
| 94 | }; | 89 | }; |
| 95 | | 90 | |
| 96 | #endif·//·CHAT_MESSAGE_HPP | 91 | #endif·//·CHAT_MESSAGE_HPP |