UNIXFILE_BLOCK   29581 ext/sqlite3/libsqlite/sqlite3.c     lkType = (pFile->ctrlFlags & UNIXFILE_BLOCK)!=0 ? F_SETLKW : F_SETLK;
UNIXFILE_BLOCK   29584 ext/sqlite3/libsqlite/sqlite3.c     pFile->ctrlFlags &= ~UNIXFILE_BLOCK;