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dblock.h
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29 
30 #pragma once
31 
32 #include <QMutex>
33 #include <QString>
34 #include <QSet>
35 #include "dbconfig.h"
36 
37 class QSqlError;
38 class QSqlQuery;
39 class QSqlDatabase;
40 
41 namespace LeechCraft
42 {
43  namespace Util
44  {
62  class DBLock
63  {
64  QSqlDatabase &Database_;
65 
66  bool Good_;
67  bool Initialized_;
68 
69  static QMutex LockedMutex_;
70  static QSet<QString> LockedBases_;
71  public:
72  DBLock (const DBLock&) = delete;
73  DBLock& operator= (const DBLock&) = delete;
74 
84  UTIL_DB_API DBLock (QSqlDatabase& database);
91 
99  UTIL_DB_API void Init ();
106  UTIL_DB_API void Good ();
107 
112  UTIL_DB_API static void DumpError (const QSqlError& error);
113 
118  UTIL_DB_API static void DumpError (const QSqlQuery& query);
119 
128  UTIL_DB_API static void Execute (QSqlQuery& query);
129  };
130  };
131 };
#define UTIL_DB_API
Definition: dbconfig.h:37
UTIL_DB_API ~DBLock()
Destructor.
Definition: dblock.cpp:49
DBLock(const DBLock &)=delete
DBLock & operator=(const DBLock &)=delete
Provides database transaction lock.
Definition: dblock.h:62
static UTIL_DB_API void DumpError(const QSqlError &error)
Dumps the error to the qWarning() stream.
Definition: dblock.cpp:86
UTIL_DB_API void Good()
Notifies the lock about successful higher-level operations.
Definition: dblock.cpp:81
UTIL_DB_API void Init()
Initializes the transaction.
Definition: dblock.cpp:63
static UTIL_DB_API void Execute(QSqlQuery &query)
Tries to execute the given query.
Definition: dblock.cpp:100