[mkcal] Rework ExtendedStorage to add an async implementation.

ExtendedStorage methods have been splitted between methods
dealing with a proxy (the calendar for incidences and the
notebook list) and methods working directly on the database.
The latter have been moved into a new DirectStorageInterface
class.

The previous SqliteStorage::Private class has been moved out
in separated sqlitestorage_p.{cpp,h} files. And a new
AsyncSqliteStorage class has been created using the new
SqliteStorageImpl from a worker thread. Exchange between
the worker thread and the main thread are done via
signals and are non blocking for all methods using a
proxy. For direct methods, the call are blocking.

Author: dcaliste

rpm/mkcal-qt5.spec

@@ -75,6 +75,7 @@ install -m 644 -p %{SOURCE1} %{buildroot}%{_datadir}/mapplauncherd/privileges.d/
 
 %files tests
 %defattr(-,root,root,-)
+/opt/tests/mkcal/tst_async
 /opt/tests/mkcal/tst_load
 /opt/tests/mkcal/tst_perf
 /opt/tests/mkcal/tst_storage

src/CMakeLists.txt

@@ -4,16 +4,23 @@ set(SRC
 	notebook.cpp
 	sqliteformat.cpp
 	sqlitestorage.cpp
+	sqlitestorage_p.cpp
+	asyncsqlitestorage.cpp
+	timed.cpp
 	servicehandler.cpp
 	logging.cpp
 	semaphore_p.cpp)
 set(HEADERS
 	extendedcalendar.h
 	extendedstorage.h
 	extendedstorageobserver.h
+	directstorageinterface.h
 	notebook.h
 	sqliteformat.h
 	sqlitestorage.h
+	sqlitestorage_p.h
+	asyncsqlitestorage.h
+	timed.h
 	servicehandlerif.h
 	servicehandler.h
 	dummystorage.h