btreeInvokeBusyHandler 49354 ext/sqlite3/libsqlite/sqlite3.c     sqlite3PagerSetBusyhandler(pBt->pPager, btreeInvokeBusyHandler, pBt);
btreeInvokeBusyHandler 50126 ext/sqlite3/libsqlite/sqlite3.c           btreeInvokeBusyHandler(pBt) );