1 /*
2    Copyright (c) 2003, 2021, Oracle and/or its affiliates.
3 
4    This program is free software; you can redistribute it and/or modify
5    it under the terms of the GNU General Public License, version 2.0,
6    as published by the Free Software Foundation.
7 
8    This program is also distributed with certain software (including
9    but not limited to OpenSSL) that is licensed under separate terms,
10    as designated in a particular file or component or in included license
11    documentation.  The authors of MySQL hereby grant you an additional
12    permission to link the program and your derivative works with the
13    separately licensed software that they have included with MySQL.
14 
15    This program is distributed in the hope that it will be useful,
16    but WITHOUT ANY WARRANTY; without even the implied warranty of
17    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18    GNU General Public License, version 2.0, for more details.
19 
20    You should have received a copy of the GNU General Public License
21    along with this program; if not, write to the Free Software
22    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301  USA
23 */
24 
25 #ifndef NEXT_SCAN_HPP
26 #define NEXT_SCAN_HPP
27 
28 #include "SignalData.hpp"
29 
30 #define JAM_FILE_ID 11
31 
32 
33 class NextScanReq {
34   friend class Dblqh;
35   friend class Dbacc;
36   friend class Dbtux;
37   friend class Dbtup;
38 public:
39   // two sets of defs picked from lqh/acc
40   enum ScanFlag {
41     ZSCAN_NEXT = 1,
42     ZSCAN_NEXT_COMMIT = 2,
43     ZSCAN_COMMIT = 3,           // new
44     ZSCAN_CLOSE = 6,
45     ZSCAN_NEXT_ABORT = 12
46   };
47   STATIC_CONST( SignalLength = 3 );
48 private:
49   Uint32 accPtr;                // scan record in ACC/TUX
50   Uint32 accOperationPtr;
51   Uint32 scanFlag;
52 };
53 
54 class NextScanConf {
55   friend class Dbacc;
56   friend class Dbtux;
57   friend class Dbtup;
58   friend class Dblqh;
59 public:
60   // length is less if no keyinfo or no next result
61   STATIC_CONST( SignalLength = 11 );
62   STATIC_CONST( SignalLengthNoKeyInfo = 6 );
63 private:
64   Uint32 scanPtr;               // scan record in LQH
65   Uint32 accOperationPtr;
66   Uint32 fragId;
67   Uint32 localKey[2];
68   Uint32 gci;
69 };
70 
71 class NextScanRef {
72   friend class Dbtux;
73   friend class Dblqh;
74 public:
75   STATIC_CONST( SignalLength = 4 );
76 private:
77   Uint32 scanPtr;
78   Uint32 accOperationPtr;
79   Uint32 fragId;
80   Uint32 errorCode;
81 };
82 
83 
84 #undef JAM_FILE_ID
85 
86 #endif
87