Call OS functions to really flush the database to disk

git-svn-id: https://svn.code.sf.net/p/keepassx/code/trunk@283 b624d157-de02-0410-bad0-e51aec6abb33

src/Kdb3Database.cpp

@@ -1456,7 +1456,7 @@ bool Kdb3Database::save(){
 	if(!File->resize(size)){
 		delete [] buffer;
 		error=decodeFileError(File->error());
-		return false;	
+		return false;
 	}
 	File->seek(0);
 	if(File->write(buffer,size)!=size){
@@ -1464,7 +1464,8 @@ bool Kdb3Database::save(){
 		error=decodeFileError(File->error());
 		return false;
 	}
-	File->flush();
+	if (!syncFile(File))
+		qWarning("Unable to flush file to disk");
 
 	delete [] buffer;
 	//if(SearchGroupID!=-1)Groups.push_back(SearchGroup);

src/lib/tools.cpp

@@ -24,8 +24,10 @@
 
 #if defined(Q_WS_X11) || defined(Q_WS_MAC)
 	#include <sys/mman.h>
+	#include <unistd.h>
 #elif defined(Q_WS_WIN)
 	#include <windows.h>
+	#include <io.h>
 #endif
 
 void createBanner(QPixmap* Pixmap,const QPixmap* IconAlpha,const QString& Text,int Width){
@@ -236,6 +238,18 @@ bool unlockPage(void* addr, int len){
 #endif
 }
 
+bool syncFile(QFile* file) {
+	if (!file->flush())
+		return false;
+#if defined(Q_WS_X11) || defined(Q_WS_MAC)
+	return (fsync(file->handle())==0);
+#elif defined(Q_WS_WIN)
+	return (_commit(file->handle())==0);
+#else
+	return false;
+#endif
+}
+
 QTranslator* translator = new QTranslator();
 QTranslator* qtTranslator = new QTranslator();
 bool translatorActive = false;

src/lib/tools.h

@@ -30,9 +30,7 @@ struct Translation {
 };
 bool operator<(const Translation& t1, const Translation& t2);
 
-inline const char* CSTR(const QString& str) {
-	return QTextCodec::codecForLocale()->fromUnicode(str).constData();
-}
+#define CSTR(x)(QTextCodec::codecForLocale()->fromUnicode(x).constData())
 
 const QIcon& getIcon(const QString& name);
 const QPixmap* getPixmap(const QString& name);
@@ -48,6 +46,7 @@ QString getImageFile(const QString& name);
 bool createKeyFile(const QString& filename,QString* err, int length=32, bool Hex=true);
 bool lockPage(void* addr, int len);
 bool unlockPage(void* addr, int len);
+bool syncFile(QFile* file);
 void installTranslator();
 bool isTranslationActive();
 QList<Translation> getAllTranslations();