sqlite3OsOpenReadOnly  363 ext/pdo_sqlite/sqlite/src/os.h int sqlite3OsOpenReadOnly(const char*, OsFile**);
sqlite3OsOpenReadOnly  460 ext/pdo_sqlite/sqlite/src/os.h     IF_DISKIO( sqlite3OsOpenReadOnly ),
sqlite3OsOpenReadOnly 1167 ext/pdo_sqlite/sqlite/src/pager.c   rc = sqlite3OsOpenReadOnly(zMaster, &master);
sqlite3OsOpenReadOnly 1199 ext/pdo_sqlite/sqlite/src/pager.c         rc = sqlite3OsOpenReadOnly(zJournal, &journal);