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make initialization of connection pool thread save on MSVC
(cherry picked from commit c550af2 and 1e96813)
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jef-n committed Jun 29, 2015
1 parent b97d46c commit daa909f
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Showing 4 changed files with 6 additions and 16 deletions.
14 changes: 2 additions & 12 deletions src/providers/postgres/qgspostgresconnpool.cpp
Expand Up @@ -16,21 +16,11 @@
#include "qgspostgresconnpool.h"
#include "qgspostgresconn.h"

QgsPostgresConnPool QgsPostgresConnPool::sInstance;

QgsPostgresConnPool* QgsPostgresConnPool::instance()
{
static QgsPostgresConnPool *sInstance = 0;

if ( !sInstance )
{
static QMutex m;
m.lock();
if ( !sInstance )
sInstance = new QgsPostgresConnPool();
m.unlock();
}

return sInstance;
return &sInstance;
}

QgsPostgresConnPool::QgsPostgresConnPool() : QgsConnectionPool<QgsPostgresConn*, QgsPostgresConnPoolGroup>()
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3 changes: 2 additions & 1 deletion src/providers/postgres/qgspostgresconnpool.h
Expand Up @@ -17,7 +17,6 @@
#define QGSPOSTGRESCONNPOOL_H

#include "qgsconnectionpool.h"

#include "qgspostgresconn.h"


Expand Down Expand Up @@ -66,6 +65,8 @@ class QgsPostgresConnPool : public QgsConnectionPool<QgsPostgresConn*, QgsPostgr
private:
QgsPostgresConnPool();
~QgsPostgresConnPool();

static QgsPostgresConnPool sInstance;
};


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2 changes: 1 addition & 1 deletion src/providers/spatialite/qgsspatialiteconnpool.cpp
Expand Up @@ -15,9 +15,9 @@

#include "qgsspatialiteconnpool.h"

QgsSpatiaLiteConnPool QgsSpatiaLiteConnPool::sInstance;

QgsSpatiaLiteConnPool* QgsSpatiaLiteConnPool::instance()
{
static QgsSpatiaLiteConnPool sInstance;
return &sInstance;
}
3 changes: 1 addition & 2 deletions src/providers/spatialite/qgsspatialiteconnpool.h
Expand Up @@ -17,7 +17,6 @@
#define QGSSPATIALITECONPOOL_H

#include "qgsconnectionpool.h"

#include "qgsspatialiteconnection.h"

inline QString qgsConnectionPool_ConnectionToName( QgsSqliteHandle* c )
Expand Down Expand Up @@ -56,9 +55,9 @@ class QgsSpatiaLiteConnPoolGroup : public QObject, public QgsConnectionPoolGroup
/** SpatiaLite connection pool - singleton */
class QgsSpatiaLiteConnPool : public QgsConnectionPool<QgsSqliteHandle*, QgsSpatiaLiteConnPoolGroup>
{
static QgsSpatiaLiteConnPool sInstance;
public:
static QgsSpatiaLiteConnPool* instance();

};


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