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Special Forums News, Links, Events and Announcements Software Releases - RSS News zsync 0.6 (Default branch)
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Old 01-24-2009
zsync 0.6 (Default branch)
zsync is a implementation of rsync over HTTP. It allows updating of files from a remote Web server without requiring a full download or a special remote server application. It uses a metafile, which is created on the server, to determine which parts of a file the user already has; it then downloads the remaining parts via HTTP. No special server or Web server module is needed. It also works with gzip files, and content on the server can be compressed to further reduce download times. License: Artistic License Changes:
Bugs were fixed, including a possible segmentation fault and problems making zsync files for large compressed downloads. Also, the mtime on downloaded files are now preserved. Image

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LEARN ABOUT PLAN9

cfs

CFS(4)							     Kernel Interfaces Manual							    CFS(4)

NAME

       cfs - cache file system

SYNOPSIS

       cfs -s [-rd] [-f partition]

       cfs -a netaddr [-rd] [-f partition] [mtpt]

DESCRIPTION

       Cfs is a user-level file server that caches information about remote files onto a local disk.  It is normally started by the kernel at boot
       time, though users may start it manually.  Cfs is interposed between the kernel and a network connection to a remote file server to improve
       the  efficiency of access across slow network connections such as modem lines.  On each open of a file cfs checks the consistency of cached
       information and discards any old information for that file.

       Cfs mounts onto mtpt (default /) after connecting to the file server.

       The options are:

       s      the connection to the remote file server is on file descriptors 0 and 1.

       a netaddr
	      dial the destination netaddr to connect to a remote file server.

       r      reformat the cache disk partition.

       d      turn on debugging

       f partition
	      use file partition as the cache disk partition.

       All 9P messages except read, clone, and walk (see intro(5)) are passed through cfs unchanged to the remote server.  A clone followed  imme-
       diately	by a walk is converted into a clwalk.  If possible, a read is satisfied by cached data.  Otherwise, the file server is queried for
       any missing data.

FILES

       /dev/hd0cache
	      Default file used for storing cached data.

SOURCE

       /sys/src/cmd/cfs

																	    CFS(4)