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
|
/*
* Copyright (C) 2008-2010 TrinityCore <http://www.trinitycore.org/>
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <ace/Activation_Queue.h>
#include "DatabaseWorkerPool.h"
#include "Util.h"
#ifndef _MYSQLCONNECTION_H
#define _MYSQLCONNECTION_H
class DatabaseWorker;
class PreparedStatement;
class MySQLPreparedStatement;
class PingOperation;
struct MySQLConnectionInfo
{
MySQLConnectionInfo() {}
MySQLConnectionInfo(const std::string& infoString)
{
Tokens tokens = StrSplit(infoString, ";");
Tokens::iterator iter = tokens.begin();
if (iter != tokens.end())
host = *iter++;
if (iter != tokens.end())
port_or_socket = *iter++;
if (iter != tokens.end())
user = *iter++;
if (iter != tokens.end())
password = *iter++;
if (iter != tokens.end())
database = *iter++;
}
std::string user;
std::string password;
std::string database;
std::string host;
std::string port_or_socket;
};
class MySQLConnection
{
template <class T> friend class DatabaseWorkerPool;
friend class PingOperation;
public:
MySQLConnection(MySQLConnectionInfo& connInfo); //! Constructor for synchroneous connections.
MySQLConnection(ACE_Activation_Queue* queue, MySQLConnectionInfo& connInfo); //! Constructor for asynchroneous connections.
~MySQLConnection();
virtual bool Open();
void Close();
public:
bool Execute(const char* sql);
bool Execute(PreparedStatement* stmt);
ResultSet* Query(const char* sql);
PreparedResultSet* Query(PreparedStatement* stmt);
bool _Query(const char *sql, MYSQL_RES **pResult, MYSQL_FIELD **pFields, uint64* pRowCount, uint32* pFieldCount);
bool _Query(PreparedStatement* stmt, MYSQL_RES **pResult, uint64* pRowCount, uint32* pFieldCount);
void BeginTransaction();
void RollbackTransaction();
void CommitTransaction();
operator bool () const { return m_Mysql != NULL; }
void Ping() { mysql_ping(m_Mysql); }
protected:
MYSQL* GetHandle() { return m_Mysql; }
MySQLPreparedStatement* GetPreparedStatement(uint32 index);
void PrepareStatement(uint32 index, const char* sql);
std::vector<MySQLPreparedStatement*> m_stmts; //! PreparedStatements storage
bool LockIfReady()
{
/// Tries to acquire lock. If lock is acquired by another thread
/// the calling parent will just try another connection
return m_Mutex.tryacquire() != -1;
}
void Unlock()
{
/// Called by parent databasepool. Will let other threads access this connection
m_Mutex.release();
}
private:
ACE_Activation_Queue* m_queue; //! Queue shared with other asynchroneous connections.
DatabaseWorker* m_worker; //! Core worker task.
MYSQL * m_Mysql; //! MySQL Handle.
MySQLConnectionInfo& m_connectionInfo; //! Connection info (used for logging)
ACE_Thread_Mutex m_Mutex;
};
#endif
|
