UNIX_SHM_BASE    27751 third_party/sqlite/amalgamation/sqlite3.c #define UNIX_SHM_BASE   ((22+SQLITE_SHM_NLOCK)*4)         /* first lock byte */
UNIX_SHM_BASE    3610 third_party/sqlite/src/src/os_unix.c #define UNIX_SHM_BASE   ((22+SQLITE_SHM_NLOCK)*4)         /* first lock byte */