Module Zlib
In: ext/zlib/zlib.c

GZIP_SUPPORT

Methods

Classes and Modules

Class Zlib::BufError
Class Zlib::DataError
Class Zlib::Deflate
Class Zlib::Error
Class Zlib::GzipFile
Class Zlib::GzipReader
Class Zlib::GzipWriter
Class Zlib::Inflate
Class Zlib::MemError
Class Zlib::NeedDict
Class Zlib::StreamEnd
Class Zlib::StreamError
Class Zlib::VersionError
Class Zlib::ZStream

Constants

VERSION = rb_str_new2(RUBY_ZLIB_VERSION)
ZLIB_VERSION = rb_str_new2(ZLIB_VERSION)
BINARY = INT2FIX(Z_BINARY)
ASCII = INT2FIX(Z_ASCII)
UNKNOWN = INT2FIX(Z_UNKNOWN)
NO_COMPRESSION = INT2FIX(Z_NO_COMPRESSION)
BEST_SPEED = INT2FIX(Z_BEST_SPEED)
BEST_COMPRESSION = INT2FIX(Z_BEST_COMPRESSION)
DEFAULT_COMPRESSION = INT2FIX(Z_DEFAULT_COMPRESSION)
FILTERED = INT2FIX(Z_FILTERED)
HUFFMAN_ONLY = INT2FIX(Z_HUFFMAN_ONLY)
DEFAULT_STRATEGY = INT2FIX(Z_DEFAULT_STRATEGY)
MAX_WBITS = INT2FIX(MAX_WBITS)
DEF_MEM_LEVEL = INT2FIX(DEF_MEM_LEVEL)
MAX_MEM_LEVEL = INT2FIX(MAX_MEM_LEVEL)
NO_FLUSH = INT2FIX(Z_NO_FLUSH)
SYNC_FLUSH = INT2FIX(Z_SYNC_FLUSH)
FULL_FLUSH = INT2FIX(Z_FULL_FLUSH)
FINISH = INT2FIX(Z_FINISH)
OS_CODE = INT2FIX(OS_CODE)
OS_MSDOS = INT2FIX(OS_MSDOS)
OS_AMIGA = INT2FIX(OS_AMIGA)
OS_VMS = INT2FIX(OS_VMS)
OS_UNIX = INT2FIX(OS_UNIX)
OS_ATARI = INT2FIX(OS_ATARI)
OS_OS2 = INT2FIX(OS_OS2)
OS_MACOS = INT2FIX(OS_MACOS)
OS_TOPS20 = INT2FIX(OS_TOPS20)
OS_WIN32 = INT2FIX(OS_WIN32)
OS_VMCMS = INT2FIX(OS_VMCMS)
OS_ZSYSTEM = INT2FIX(OS_ZSYSTEM)
OS_CPM = INT2FIX(OS_CPM)
OS_QDOS = INT2FIX(OS_QDOS)
OS_RISCOS = INT2FIX(OS_RISCOS)
OS_UNKNOWN = INT2FIX(OS_UNKNOWN)

Public Class methods

Calculates Alder-32 checksum for string, and returns updated value of adler. If string is omitted, it returns the Adler-32 initial value. If adler is omitted, it assumes that the initial value is given to adler.

FIXME: expression.

[Source]

/*
 * call-seq: Zlib.adler32(string, adler)
 *
 * Calculates Alder-32 checksum for +string+, and returns updated value of
 * +adler+. If +string+ is omitted, it returns the Adler-32 initial value. If
 * +adler+ is omitted, it assumes that the initial value is given to +adler+.
 *
 * FIXME: expression.
 */
static VALUE
rb_zlib_adler32(argc, argv, klass)
    int argc;
    VALUE *argv;
    VALUE klass;
{
    return do_checksum(argc, argv, adler32);
}

Calculates CRC checksum for string, and returns updated value of crc. If string is omitted, it returns the CRC initial value. If crc is omitted, it assumes that the initial value is given to crc.

FIXME: expression.

[Source]

/*
 * call-seq: Zlib.crc32(string, adler)
 *
 * Calculates CRC checksum for +string+, and returns updated value of +crc+. If
 * +string+ is omitted, it returns the CRC initial value. If +crc+ is omitted, it
 * assumes that the initial value is given to +crc+.
 *
 * FIXME: expression.
 */
static VALUE
rb_zlib_crc32(argc, argv, klass)
    int argc;
    VALUE *argv;
    VALUE klass;
{
    return do_checksum(argc, argv, crc32);
}

Returns the table for calculating CRC checksum as an array.

[Source]

/*
 * Returns the table for calculating CRC checksum as an array.
 */
static VALUE
rb_zlib_crc_table(obj)
    VALUE obj;
{
    const unsigned long *crctbl;
    VALUE dst;
    int i;

    crctbl = get_crc_table();
    dst = rb_ary_new2(256);

    for (i = 0; i < 256; i++) {
        rb_ary_push(dst, rb_uint2inum(crctbl[i]));
    }
    return dst;
}

Returns the string which represents the version of zlib library.

[Source]

/*
 * Returns the string which represents the version of zlib library.
 */
static VALUE
rb_zlib_version(klass)
    VALUE klass;
{
    VALUE str;

    str = rb_str_new2(zlibVersion());
    OBJ_TAINT(str);  /* for safe */
    return str;
}

[Validate]