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Fix mutex usage in the journal

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All public function must lock the mutex. And therefore none of the journal
function may call public function because the mutex is already locked.

So have a public commit that lock the mutex,  and a private  commitInternal
that assume the mutex is locked
This commit is contained in:
Olivier Goffart 2013-11-25 15:11:37 +01:00
parent ca3885de2a
commit 6f17131e3c
2 changed files with 15 additions and 6 deletions
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14
src/mirall/syncjournaldb.cpp
View file

@ -189,7 +189,7 @@ bool SyncJournalDb::checkConnect()
return sqlFail("Create table blacklist", createQuery);
}
commit("checkConnect");
commitInternal("checkConnect");
bool rc = updateDatabaseStructure();
if( rc ) {
@ -282,7 +282,7 @@ bool SyncJournalDb::updateDatabaseStructure()
query.prepare("CREATE INDEX metadata_file_id ON metadata(fileid);");
re = re && query.exec();
commit("update database structure");
commitInternal("update database structure");
}
return re;
@ -735,9 +735,17 @@ void SyncJournalDb::updateBlacklistEntry( const SyncJournalBlacklistRecord& item
if( !iQuery.exec() ) {
qDebug() << "SQL exec blacklistitem insert/update failed: "<< iQuery.lastError().text();
}
}
void SyncJournalDb::commit(const QString& context, bool startTrans )
void SyncJournalDb::commit(const QString& context, bool startTrans)
{
QMutexLocker lock(&_mutex);
commitInternal(context, startTrans);
}
void SyncJournalDb::commitInternal(const QString& context, bool startTrans )
{
qDebug() << "Transaction Start " << context;
commitTransaction();

7
src/mirall/syncjournaldb.h
View file

@ -36,7 +36,6 @@ public:
bool deleteFileRecord( const QString& filename, bool recursively = false );
int getFileRecordCount();
bool exists();
QStringList tableColumns( const QString& table );
void updateBlacklistEntry( const SyncJournalBlacklistRecord& item );
void wipeBlacklistEntry(const QString& file);
@ -72,8 +71,6 @@ public:
void close();
void startTransaction();
void commitTransaction();
signals:
@ -83,6 +80,10 @@ private:
qint64 getPHash(const QString& ) const;
bool updateDatabaseStructure();
bool sqlFail(const QString& log, const QSqlQuery &query );
void commitInternal(const QString &context, bool startTrans = true);
void startTransaction();
void commitTransaction();
QStringList tableColumns( const QString& table );
bool checkConnect();
QSqlDatabase _db;