1 /*
2 Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
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 PACKER_HPP
26 #define PACKER_HPP
27
28 #include <TransporterDefinitions.hpp>
29 #include "TransporterInternalDefinitions.hpp"
30
31 #ifdef WORDS_BIGENDIAN
32 #define MY_OWN_BYTE_ORDER 1
33 #else
34 #define MY_OWN_BYTE_ORDER 0
35 #endif
36
37 class Packer {
38 Uint32 preComputedWord1;
39 Uint32 checksumUsed; // Checksum shall be included in the message
40 Uint32 signalIdUsed; // Senders signal id shall be included in the message
41 public:
42 Packer(bool signalId, bool checksum);
43
44 Uint32 getMessageLength(const SignalHeader* header,
45 const LinearSectionPtr ptr[3]) const ;
46
47
48 Uint32 getMessageLength(const SignalHeader* header,
49 const SegmentedSectionPtr ptr[3]) const ;
50
51
52 Uint32 getMessageLength(const SignalHeader* header,
53 const GenericSectionPtr ptr[3]) const ;
54
55 void pack(Uint32 * insertPtr,
56 Uint32 prio,
57 const SignalHeader* header,
58 const Uint32* data,
59 const LinearSectionPtr ptr[3]) const ;
60
61 void pack(Uint32 * insertPtr,
62 Uint32 prio,
63 const SignalHeader* header,
64 const Uint32* data,
65 class SectionSegmentPool & thePool,
66 const SegmentedSectionPtr ptr[3]) const ;
67
68 void pack(Uint32 * insertPtr,
69 Uint32 prio,
70 const SignalHeader* header,
71 const Uint32* data,
72 const GenericSectionPtr ptr[3]) const ;
73 };
74
75 inline
76 Uint32
getMessageLength(const SignalHeader * header,const LinearSectionPtr ptr[3]) const77 Packer::getMessageLength(const SignalHeader* header,
78 const LinearSectionPtr ptr[3]) const {
79 Uint32 tLen32 = header->theLength;
80 Uint32 no_seg = header->m_noOfSections;
81 tLen32 += checksumUsed;
82 tLen32 += signalIdUsed;
83 tLen32 += no_seg;
84
85 for(Uint32 i = 0; i<no_seg; i++){
86 tLen32 += ptr[i].sz;
87 }
88
89 return (tLen32 * 4) + sizeof(Protocol6);
90 }
91
92 inline
93 Uint32
getMessageLength(const SignalHeader * header,const SegmentedSectionPtr ptr[3]) const94 Packer::getMessageLength(const SignalHeader* header,
95 const SegmentedSectionPtr ptr[3]) const {
96 Uint32 tLen32 = header->theLength;
97 Uint32 no_seg = header->m_noOfSections;
98 tLen32 += checksumUsed;
99 tLen32 += signalIdUsed;
100 tLen32 += no_seg;
101
102 for(Uint32 i = 0; i<no_seg; i++){
103 tLen32 += ptr[i].sz;
104 }
105
106 return (tLen32 * 4) + sizeof(Protocol6);
107 }
108
109 inline
110 Uint32
getMessageLength(const SignalHeader * header,const GenericSectionPtr ptr[3]) const111 Packer::getMessageLength(const SignalHeader* header,
112 const GenericSectionPtr ptr[3]) const {
113 Uint32 tLen32 = header->theLength;
114 Uint32 no_seg = header->m_noOfSections;
115 tLen32 += checksumUsed;
116 tLen32 += signalIdUsed;
117 tLen32 += no_seg;
118
119 for(Uint32 i = 0; i<no_seg; i++){
120 tLen32 += ptr[i].sz;
121 }
122
123 return (tLen32 * 4) + sizeof(Protocol6);
124 }
125
126 #endif
127