SQLITE_IOERR_RDLOCK  991 ext/sqlite3/libsqlite/sqlite3.c #define SQLITE_IOERR_RDLOCK            (SQLITE_IOERR | (9<<8))
SQLITE_IOERR_RDLOCK  444 ext/sqlite3/libsqlite/sqlite3.h #define SQLITE_IOERR_RDLOCK            (SQLITE_IOERR | (9<<8))