sqlite3OsOpenDirectory  348 ext/pdo_sqlite/sqlite/src/os.h int sqlite3OsOpenDirectory(OsFile*, const char*);
sqlite3OsOpenDirectory 3184 ext/pdo_sqlite/sqlite/src/pager.c   sqlite3OsOpenDirectory(pPager->jfd, pPager->zDirectory);
sqlite3OsOpenDirectory 1171 ext/pdo_sqlite/sqlite/src/vdbeaux.c     rc = sqlite3OsOpenDirectory(master, zMainFile);