1 /* Copyright (C) 2014 InfiniDB, Inc.
2 
3    This program is free software; you can redistribute it and/or
4    modify it under the terms of the GNU General Public License
5    as published by the Free Software Foundation; version 2 of
6    the License.
7 
8    This program is distributed in the hope that it will be useful,
9    but WITHOUT ANY WARRANTY; without even the implied warranty of
10    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
11    GNU General Public License for more details.
12 
13    You should have received a copy of the GNU General Public License
14    along with this program; if not, write to the Free Software
15    Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
16    MA 02110-1301, USA. */
17 
18 /******************************************************************************
19  * $Id: logicalpartition.h 1823 2013-01-21 14:13:09Z rdempsey $
20  *
21  *****************************************************************************/
22 
23 /** @file
24  * Put LogicalPartition define here to avoid header file include confilct.
25  * This struct will be used in connector, brm and writeengine
26  */
27 
28 #ifndef LOGICALPARTITION_H_
29 #define LOGICALPARTITION_H_
30 
31 #include "bytestream.h"
32 
33 namespace BRM
34 {
35 // Logical partition number descriptor
36 struct LogicalPartition
37 {
38     uint16_t dbroot;  // dbroot #
39     uint32_t pp;      // physical partition #
40     uint16_t seg;     // segment #
41 
LogicalPartitionLogicalPartition42     LogicalPartition() : dbroot ((uint16_t) - 1),
43         pp ((uint32_t) - 1),
44         seg ((uint16_t) - 1) {}
45 
LogicalPartitionLogicalPartition46     LogicalPartition(uint16_t d, uint32_t p, uint16_t s) : dbroot(d),
47         pp(p),
48         seg(s)
49     {}
50 
51     bool operator<( const LogicalPartition& n ) const
52     {
53         return ((pp < n.pp) ||
54                 (pp == n.pp && seg < n.seg) ||
55                 (pp == n.pp && seg == n.seg && dbroot < n.dbroot));
56     }
57 
serializeLogicalPartition58     void serialize(messageqcpp::ByteStream& b) const
59     {
60         b << (uint16_t)dbroot;
61         b << (uint32_t)pp;
62         b << (uint16_t)seg;
63     }
64 
unserializeLogicalPartition65     void unserialize(messageqcpp::ByteStream& b)
66     {
67         b >> (uint16_t&)dbroot;
68         b >> (uint32_t&)pp;
69         b >> (uint16_t&)seg;
70     }
71 
72     /** @bug4816. For output to user purpose */
73     std::string toString() const;
74 };
75 
76 /**
77  * ostream operator
78  */
79 std::ostream& operator<<(std::ostream& output, const LogicalPartition& rhs);
80 std::istream& operator>>(std::istream& input, LogicalPartition& rhs);
81 
82 /**
83  * bytestream operator
84  */
85 messageqcpp::ByteStream& operator<<(messageqcpp::ByteStream& bs, const LogicalPartition& rhs);
86 
87 messageqcpp::ByteStream& operator>>(messageqcpp::ByteStream& bs, LogicalPartition& rhs);
88 
89 }
90 #endif
91