1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
|
// Cyphesis Online RPG Server and AI Engine
// Copyright (C) 2003-2004,2006 Alistair Riddoch
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software Foundation,
// Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
// $Id: CommPSQLSocket.cpp,v 1.17 2006-10-26 00:48:13 alriddoch Exp $
#include "CommPSQLSocket.h"
#include "IdlePSQLConnector.h"
#include "CommServer.h"
#include "common/Database.h"
#include "common/log.h"
#include "common/debug.h"
#include "common/globals.h"
#include <iostream>
#include <cassert>
static const bool debug_flag = false;
/// \brief Constructor for PostgreSQL socket polling object.
///
/// @param svr Reference to the object that manages all socket communication.
/// @param db Reference to the low level database management object.
CommPSQLSocket::CommPSQLSocket(CommServer & svr, Database & db) :
Idle(svr), CommSocket(svr), m_db(db),
m_vacuumTime(0), m_reindexTime(0),
m_vacuumFull(false)
{
// This assumes the database connection is already sorted, which I think
// is okay
PGconn * con = m_db.getConnection();
assert(con != 0);
if (PQsetnonblocking(con, 1) == -1) {
log(ERROR, "Unable to put database connection in non-blocking mode.");
}
}
CommPSQLSocket::~CommPSQLSocket()
{
if (!exit_flag) {
m_db.shutdownConnection();
IdlePSQLConnector * ipsqlc = new IdlePSQLConnector(m_idleManager, m_db);
m_idleManager.addIdle(ipsqlc);
}
}
int CommPSQLSocket::getFd() const
{
debug(std::cout << "CommPSQLSocket::getFd()" << std::endl << std::flush;);
PGconn * con = m_db.getConnection();
assert(con != 0);
return PQsocket(con);
}
bool CommPSQLSocket::eof()
{
debug(std::cout << "CommPSQLSocket::eof()" << std::endl << std::flush;);
return PQstatus(m_db.getConnection()) != CONNECTION_OK;
}
bool CommPSQLSocket::isOpen() const
{
debug(std::cout << "CommPSQLSocket::isOpen()" << std::endl << std::flush;);
return true;
}
int CommPSQLSocket::read()
{
debug(std::cout << "CommPSQLSocket::read()" << std::endl << std::flush;);
PGconn * con = m_db.getConnection();
assert(con != 0);
if (PQconsumeInput(con) == 0) {
log(ERROR, "Error reading from database connection.");
m_db.reportError();
log(ERROR, "Connection to RDBMS lost.");
return 1;
}
PGresult * res;
while (PQisBusy(con) == 0) {
if ((res = PQgetResult(con)) != 0) {
m_db.queryResult(PQresultStatus(res));
PQclear(res);
} else {
m_db.queryComplete();
return 0;
}
};
return 0;
}
void CommPSQLSocket::dispatch()
{
debug(std::cout << "CommPSQLSocket::dispatch()"
<< std::endl << std::flush;);
if (m_db.queryInProgress()) {
return;
}
m_db.launchNewQuery();
}
void CommPSQLSocket::idle(time_t t)
{
debug(std::cout << "CommPSQLSocket::idle()" << std::endl << std::flush;);
if (t > m_vacuumTime) {
if (m_vacuumFull) {
m_db.runMaintainance(Database::MAINTAIN_VACUUM |
Database::MAINTAIN_VACUUM_FULL);
} else {
m_db.runMaintainance(Database::MAINTAIN_VACUUM |
Database::MAINTAIN_VACUUM_ANALYZE);
}
m_vacuumFull = !m_vacuumFull;
m_vacuumTime = t + vacFreq;
}
if (t > m_reindexTime) {
m_db.runMaintainance(Database::MAINTAIN_REINDEX);
m_reindexTime = t + reindexFreq;
}
}
|
