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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 71 | daniel-mar | 1 | unit UD2_PluginStatus; |
| 2 | |||
| 3 | interface |
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| 4 | |||
| 5 | uses |
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| 6 | Windows, SysUtils; |
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| 7 | |||
| 8 | type |
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| 9 | UD2_STATUSCAT = WORD; |
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| 10 | UD2_STATUSAUTH = TGUID; |
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| 11 | UD2_STATUSMSG = DWORD; |
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| 12 | UD2_STATUSEXTRAINFO = DWORD; |
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| 13 | |||
| 14 | UD2_STATUS = packed record |
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| 15 | cbSize: BYTE; |
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| 16 | bReserved: BYTE; |
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| 17 | wCategory: UD2_STATUSCAT; |
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| 18 | grAuthority: UD2_STATUSAUTH; |
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| 19 | dwMessage: UD2_STATUSMSG; |
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| 20 | dwExtraInfo: UD2_STATUSEXTRAINFO; |
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| 21 | end; |
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| 22 | |||
| 23 | const |
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| 24 | // Note: we need to declare non-typed constants first, because we cannot use |
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| 25 | // typed constants in constant records. |
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| 26 | // http://stackoverflow.com/questions/2714365/delphi-all-constants-are-constant-but-some-are-more-constant-than-others |
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| 27 | UD2_STATUSAUTH_GENERIC_ = '{90F53368-1EFB-4350-A6BC-725C69938B9C}'; |
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| 28 | UD2_STATUSAUTH_GENERIC : UD2_STATUSAUTH = UD2_STATUSAUTH_GENERIC_; |
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| 29 | |||
| 30 | UD2_STATUSCAT_SUCCESS = 0; |
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| 31 | UD2_STATUSCAT_NOT_AVAIL = 1; |
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| 32 | UD2_STATUSCAT_FAILED = 2; |
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| 33 | |||
| 34 | (* Success codes *) |
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| 35 | |||
| 36 | UD2_STATUS_OK_UNSPECIFIED: UD2_STATUS = ( |
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| 37 | cbSize: SizeOf(UD2_STATUS); |
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| 38 | bReserved: 0; |
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| 39 | wCategory: UD2_STATUSCAT_SUCCESS; |
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| 40 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 41 | dwMessage: 0; |
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| 42 | dwExtraInfo: 0 |
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| 43 | ); |
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| 44 | UD2_STATUS_OK_SINGLELINE: UD2_STATUS = ( |
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| 45 | cbSize: SizeOf(UD2_STATUS); |
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| 46 | bReserved: 0; |
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| 47 | wCategory: UD2_STATUSCAT_SUCCESS; |
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| 48 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 49 | dwMessage: 1; |
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| 50 | dwExtraInfo: 0 |
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| 51 | ); |
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| 52 | UD2_STATUS_OK_MULTILINE: UD2_STATUS = ( |
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| 53 | cbSize: SizeOf(UD2_STATUS); |
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| 54 | bReserved: 0; |
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| 55 | wCategory: UD2_STATUSCAT_SUCCESS; |
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| 56 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 57 | dwMessage: 2; |
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| 58 | dwExtraInfo: 0 |
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| 59 | ); |
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| 60 | UD2_STATUS_OK_LICENSED: UD2_STATUS = ( |
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| 61 | cbSize: SizeOf(UD2_STATUS); |
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| 62 | bReserved: 0; |
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| 63 | wCategory: UD2_STATUSCAT_SUCCESS; |
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| 64 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 65 | dwMessage: 3; |
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| 66 | dwExtraInfo: 0 |
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| 67 | ); |
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| 68 | |||
| 69 | (* "Not available" codes *) |
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| 70 | |||
| 71 | UD2_STATUS_NOTAVAIL_UNSPECIFIED: UD2_STATUS = ( |
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| 72 | cbSize: SizeOf(UD2_STATUS); |
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| 73 | bReserved: 0; |
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| 74 | wCategory: UD2_STATUSCAT_NOT_AVAIL; |
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| 75 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 76 | dwMessage: 0; |
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| 77 | dwExtraInfo: 0 |
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| 78 | ); |
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| 79 | UD2_STATUS_NOTAVAIL_OS_NOT_SUPPORTED: UD2_STATUS = ( |
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| 80 | cbSize: SizeOf(UD2_STATUS); |
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| 81 | bReserved: 0; |
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| 82 | wCategory: UD2_STATUSCAT_NOT_AVAIL; |
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| 83 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 84 | dwMessage: 1; |
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| 85 | dwExtraInfo: 0 |
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| 86 | ); |
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| 87 | UD2_STATUS_NOTAVAIL_HW_NOT_SUPPORTED: UD2_STATUS = ( |
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| 88 | cbSize: SizeOf(UD2_STATUS); |
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| 89 | bReserved: 0; |
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| 90 | wCategory: UD2_STATUSCAT_NOT_AVAIL; |
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| 91 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 92 | dwMessage: 2; |
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| 93 | dwExtraInfo: 0 |
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| 94 | ); |
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| 95 | UD2_STATUS_NOTAVAIL_NO_ENTITIES: UD2_STATUS = ( |
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| 96 | cbSize: SizeOf(UD2_STATUS); |
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| 97 | bReserved: 0; |
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| 98 | wCategory: UD2_STATUSCAT_NOT_AVAIL; |
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| 99 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 100 | dwMessage: 3; |
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| 101 | dwExtraInfo: 0 |
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| 102 | ); |
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| 103 | UD2_STATUS_NOTAVAIL_WINAPI_CALL_FAILURE: UD2_STATUS = ( |
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| 104 | cbSize: SizeOf(UD2_STATUS); |
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| 105 | bReserved: 0; |
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| 106 | wCategory: UD2_STATUSCAT_NOT_AVAIL; |
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| 107 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 108 | dwMessage: 4; |
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| 109 | dwExtraInfo: 0 |
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| 110 | ); |
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| 111 | |||
| 112 | (* Failure codes *) |
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| 113 | |||
| 114 | UD2_STATUS_FAILURE_UNSPECIFIED: UD2_STATUS = ( |
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| 115 | cbSize: SizeOf(UD2_STATUS); |
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| 116 | bReserved: 0; |
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| 117 | wCategory: UD2_STATUSCAT_FAILED; |
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| 118 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 119 | dwMessage: 0; |
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| 120 | dwExtraInfo: 0 |
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| 121 | ); |
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| 122 | UD2_STATUS_FAILURE_BUFFER_TOO_SMALL: UD2_STATUS = ( |
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| 123 | cbSize: SizeOf(UD2_STATUS); |
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| 124 | bReserved: 0; |
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| 125 | wCategory: UD2_STATUSCAT_FAILED; |
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| 126 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 127 | dwMessage: 1; |
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| 128 | dwExtraInfo: 0 |
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| 129 | ); |
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| 130 | UD2_STATUS_FAILURE_INVALID_ARGS: UD2_STATUS = ( |
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| 131 | cbSize: SizeOf(UD2_STATUS); |
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| 132 | bReserved: 0; |
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| 133 | wCategory: UD2_STATUSCAT_FAILED; |
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| 134 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 135 | dwMessage: 2; |
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| 136 | dwExtraInfo: 0 |
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| 137 | ); |
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| 138 | UD2_STATUS_FAILURE_PLUGIN_NOT_LICENSED: UD2_STATUS = ( |
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| 139 | cbSize: SizeOf(UD2_STATUS); |
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| 140 | bReserved: 0; |
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| 141 | wCategory: UD2_STATUSCAT_FAILED; |
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| 142 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 143 | dwMessage: 3; |
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| 144 | dwExtraInfo: 0 |
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| 145 | ); |
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| 82 | daniel-mar | 146 | UD2_STATUS_FAILURE_NO_RETURNED_VALUE: UD2_STATUS = ( |
| 147 | cbSize: SizeOf(UD2_STATUS); |
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| 148 | bReserved: 0; |
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| 149 | wCategory: UD2_STATUSCAT_FAILED; |
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| 150 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 151 | dwMessage: 4; |
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| 152 | dwExtraInfo: 0 |
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| 153 | ); |
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| 154 | UD2_STATUS_FAILURE_CATCHED_EXCEPTION: UD2_STATUS = ( |
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| 155 | cbSize: SizeOf(UD2_STATUS); |
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| 156 | bReserved: 0; |
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| 157 | wCategory: UD2_STATUSCAT_FAILED; |
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| 158 | grAuthority: UD2_STATUSAUTH_GENERIC_; |
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| 159 | dwMessage: 5; |
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| 160 | dwExtraInfo: 0 |
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| 161 | ); |
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| 71 | daniel-mar | 162 | |
| 163 | function UD2_STATUS_FormatStatusCode(grStatus: UD2_STATUS): string; |
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| 164 | function UD2_STATUS_Equal(grStatus1, grStatus2: UD2_STATUS; compareExtraInfo: boolean): boolean; |
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| 165 | function UD2_STATUS_OSError(OSError: DWORD): UD2_STATUS; |
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| 82 | daniel-mar | 166 | function UD2_STATUS_HandleException(E: Exception): UD2_STATUS; |
| 71 | daniel-mar | 167 | |
| 168 | implementation |
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| 169 | |||
| 170 | function UD2_STATUS_FormatStatusCode(grStatus: UD2_STATUS): string; |
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| 171 | begin |
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| 172 | // 00 0000 {44332211-1234-ABCD-EFEF-001122334455} 00000000 00000000 |
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| 173 | result := Format('%.2x %.4x %s %.8x %.8x', [ |
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| 81 | daniel-mar | 174 | grStatus.bReserved, |
| 71 | daniel-mar | 175 | grStatus.wCategory, |
| 176 | GUIDTostring(grStatus.grAuthority), |
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| 177 | grStatus.dwMessage, |
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| 178 | grStatus.dwExtraInfo]); |
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| 179 | end; |
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| 180 | |||
| 181 | function UD2_STATUS_Equal(grStatus1, grStatus2: UD2_STATUS; compareExtraInfo: boolean): boolean; |
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| 182 | begin |
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| 183 | result := (grStatus1.bReserved = grStatus2.bReserved) and |
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| 184 | (grStatus1.wCategory = grStatus2.wCategory) and |
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| 185 | IsEqualGUID(grStatus1.grAuthority, grStatus2.grAuthority) and |
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| 186 | (grStatus1.dwMessage = grStatus2.dwMessage); |
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| 187 | if compareExtraInfo and (grStatus1.dwExtraInfo <> grStatus2.dwExtraInfo) then result := false; |
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| 188 | end; |
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| 189 | |||
| 190 | function UD2_STATUS_OSError(OSError: DWORD): UD2_STATUS; |
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| 191 | begin |
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| 192 | result := UD2_STATUS_NOTAVAIL_WINAPI_CALL_FAILURE; |
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| 193 | result.dwExtraInfo := OSError; |
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| 194 | end; |
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| 195 | |||
| 82 | daniel-mar | 196 | function UD2_STATUS_HandleException(E: Exception): UD2_STATUS; |
| 197 | begin |
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| 198 | if E is EOSError then |
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| 199 | begin |
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| 200 | result := UD2_STATUS_OSError(EOSError(E).ErrorCode); |
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| 201 | end |
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| 202 | else |
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| 203 | begin |
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| 204 | result := UD2_STATUS_FAILURE_CATCHED_EXCEPTION; |
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| 205 | end; |
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| 206 | end; |
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| 207 | |||
| 71 | daniel-mar | 208 | end. |