Short: A compressing disk device v37.5; uses XPK Uploader: rhialto@mbfys.kun.nl (Olaf Seibert) Type: util/pack RCSId: $Id: readme,v 1.3 1993/11/08 13:22:13 Rhialto Rel $ Overview ******** `xpkdisk.device' is an exec-style device that looks like trackdisk.device and similar disks. The difference is that it compresses its data and stores it in multiple files in an existing filesystem. * Now includes a utility to reclaim space from deleted files. * Now uses a hierarchical track naming scheme for faster access! * Now behaves better in cace of threatening lack of disk space. * Now handles read-only media. It uses the XPK (eXternal PacKer) standard to do the actual compression. This has many advantages: * You can choose which compression is most effective for your purpose. For one disk, you might want a very tight compression that is slow, for another you may prefer a faster but less efficient compression. * As soon as another XPK library is released, you can use it for your compressed disk(s). * Because each track is a standard XPK-compressed file, you can use the normal XPK utilities to uncompress your data, should you wish to do so. * You can change the compression type of a disk on-the-fly. All already compressed data remains perfectly usable, but upon re-compression your new choice will be used. * You can even manually decompress and recompress your disk (when xpkdisk is not accessing it, of course) with another compression method. ============================= Archive contents ============================= Original Packed Ratio Date Time Name -------- ------- ----- --------- -------- ------------- 17982 6993 61.1% 24-May-93 23:34:00 COPYING 4097 1759 57.0% 08-Nov-93 13:12:16 device1.a 12517 4185 66.5% 08-Nov-93 13:14:50 device2.c 23800 6595 72.2% 08-Nov-93 13:13:38 devio.c 340 172 49.4% 23-Oct-93 19:12:40 Files 4503 1459 67.5% 08-Nov-93 13:15:20 Install-XpkDisk 810 421 48.0% 08-Nov-93 12:59:48 Install-XpkDisk.info 5215 2109 59.5% 08-Nov-93 13:14:54 magic.c 2257 966 57.1% 08-Nov-93 13:15:00 Makefile 1698 778 54.1% 08-Nov-93 13:14:40 mkci.c 477 305 36.0% 08-Nov-93 13:16:00 Mountfile 1918 848 55.7% 08-Nov-93 13:19:42 name.c 13080 4383 66.4% 08-Nov-93 13:16:44 prefsmain.c 7732 2483 67.8% 16-Oct-93 06:17:16 prefswindow.c 5842 1213 79.2% 16-Oct-93 06:11:02 prefswindow.gui 985 453 54.0% 16-Oct-93 06:11:04 prefswindow.gui.info 2424 656 72.9% 16-Oct-93 06:11:14 prefswindow.h 1553 803 48.2% 08-Nov-93 13:22:38 README 2832 1317 53.4% 08-Nov-93 13:30:32 ripcord.c 11444 7317 36.0% 08-Nov-93 14:17:56 xdClear 13258 4196 68.3% 08-Nov-93 13:25:24 xdclear.c 7352 4956 32.5% 08-Nov-93 14:17:26 xdName 1958 854 56.3% 08-Nov-93 13:19:02 xdname.c 14104 8632 38.7% 08-Nov-93 14:17:06 xdPrefs 522 319 38.8% 16-Aug-93 17:55:34 xdprefs.info 11040 6624 40.0% 08-Nov-93 14:15:38 xpkdisk.device 28391 10113 64.3% 08-Nov-93 13:41:02 xpkdisk.guide 469 222 52.6% 16-Aug-93 17:55:36 XpkDisk.guide.info 4470 1723 61.4% 08-Nov-93 13:15:30 xpkdisk.h 24937 9598 61.5% 08-Nov-93 13:16:28 xpkdisk.texi -------- ------- ----- --------- -------- 228007 92452 59.4% 12-Nov-93 16:44:40 30 files