Module | Zlib |
In: |
ext/zlib/zlib.c
|
GZIP_SUPPORT
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) |
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.
/* * 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.
/* * 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.
/* * 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; }