PAGER_SYNCHRONOUS_MASK 45096 ext/sqlite3/libsqlite/sqlite3.c   unsigned level = pgFlags & PAGER_SYNCHRONOUS_MASK;
PAGER_SYNCHRONOUS_MASK 103783 ext/sqlite3/libsqlite/sqlite3.c     assert( (pDb->safety_level & PAGER_SYNCHRONOUS_MASK)==pDb->safety_level );
PAGER_SYNCHRONOUS_MASK 104539 ext/sqlite3/libsqlite/sqlite3.c         int iLevel = (getSafetyLevel(zRight,0,1)+1) & PAGER_SYNCHRONOUS_MASK;