module Zlib
Constants
- ASCII
- BEST_COMPRESSION
- BEST_SPEED
- BINARY
- DEFAULT_COMPRESSION
- DEFAULT_STRATEGY
- DEF_MEM_LEVEL
- DeflateFuncs
- FILTERED
- FINISH
- FULL_FLUSH
- HUFFMAN_ONLY
- InflateFuncs
- LONG_MAX
- LONG_MIN
- MAX_MEM_LEVEL
- MAX_WBITS
- NO_COMPRESSION
- NO_FLUSH
- OS_AMIGA
- OS_ATARI
- OS_CODE
- OS_MACOS
- OS_MSDOS
- OS_OS2
- OS_TOPS20
- OS_UNIX
- OS_VMS
- OS_WIN32
- PR_ZLIB_VERSION
- RUBY_ZLIB_VERSION
- SYNC_FLUSH
- UNKNOWN
- VERSION
- ZLIB_VERSION
- ZSTREAM_AVAIL_OUT_STEP_MAX
- ZSTREAM_AVAIL_OUT_STEP_MIN
- ZSTREAM_FLAG_CLOSING
- ZSTREAM_FLAG_FINISHED
- ZSTREAM_FLAG_IN_STREAM
- ZSTREAM_FLAG_READY
- ZSTREAM_FLAG_UNUSED
- ZSTREAM_INITIAL_BUFSIZE
- ZStreamFuncs
Private Class Methods
check_long_range(num)
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# File lib/pr/zlib.rb, line 1564 def self.check_long_range(num) # the error says 'unsigned', but this seems to be the range actually accepted raise RangeError, 'bignum too big to convert into `unsigned long\'' if num < LONG_MIN || num > LONG_MAX end
Public Instance Methods
adler32(string=nil, adler=nil)
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# File lib/pr/zlib.rb, line 1519 def adler32(string=nil, adler=nil) if adler check_long_range adler sum = adler elsif string.nil? sum = 0 else sum = Rbzlib.adler32(0,nil) end if string.nil? sum = Rbzlib.adler32(sum,nil) else sum = Rbzlib.adler32(sum,string,string.length) end sum end
crc32(string=nil, crc=nil)
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# File lib/pr/zlib.rb, line 1537 def crc32(string=nil, crc=nil) if crc check_long_range crc sum = crc elsif string.nil? sum = 0 else sum = Rbzlib.crc32(0,nil) end if string.nil? sum = Rbzlib.crc32(sum,nil) else sum = Rbzlib.crc32(sum,string,string.length) end sum end
crc_table()
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# File lib/pr/zlib.rb, line 1555 def crc_table get_crc_table end
zlib_version()
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# File lib/pr/zlib.rb, line 1515 def zlib_version zlibVersion() end