src/3rdparty/zlib/examples/README.examples
author Craig Heath <craigh@symbian.org>
Wed, 16 Jun 2010 16:18:05 +0100
branchGCC_SURGE
changeset 26 8776df5ac359
parent 0 1918ee327afb
permissions -rw-r--r--
Bug 2955. Workaround for lack of atomic operations in GCCE standard libraries (fall back to default use of Mutex)

This directory contains examples of the use of zlib.

fitblk.c
    compress just enough input to nearly fill a requested output size
    - zlib isn't designed to do this, but fitblk does it anyway

gun.c
    uncompress a gzip file
    - illustrates the use of inflateBack() for high speed file-to-file
      decompression using call-back functions
    - is approximately twice as fast as gzip -d
    - also provides Unix uncompress functionality, again twice as fast

gzappend.c
    append to a gzip file
    - illustrates the use of the Z_BLOCK flush parameter for inflate()
    - illustrates the use of deflatePrime() to start at any bit

gzjoin.c
    join gzip files without recalculating the crc or recompressing
    - illustrates the use of the Z_BLOCK flush parameter for inflate()
    - illustrates the use of crc32_combine()

gzlog.c
gzlog.h
    efficiently maintain a message log file in gzip format
    - illustrates use of raw deflate and Z_SYNC_FLUSH
    - illustrates use of gzip header extra field

zlib_how.html
    painfully comprehensive description of zpipe.c (see below)
    - describes in excruciating detail the use of deflate() and inflate()

zpipe.c
    reads and writes zlib streams from stdin to stdout
    - illustrates the proper use of deflate() and inflate()
    - deeply commented in zlib_how.html (see above)

zran.c
    index a zlib or gzip stream and randomly access it
    - illustrates the use of Z_BLOCK, inflatePrime(), and
      inflateSetDictionary() to provide random access