new(p1, p2 = v2, p3 = v3)
public
Creates a GzipWriter object associated with io. level and
strategy should be the same as the arguments of Zlib::Deflate.new.
The GzipWriter object writes gzipped data to io. At least,
io must respond to the write method that behaves same
as write method in IO class.
Show source
static VALUE
rb_gzwriter_initialize(int argc, VALUE *argv, VALUE obj)
{
struct gzfile *gz;
VALUE io, level, strategy, opt = Qnil;
int err;
if (argc > 1) {
opt = rb_check_convert_type(argv[argc-1], T_HASH, "Hash", "to_hash");
if (!NIL_P(opt)) argc--;
}
rb_scan_args(argc, argv, "12", &io, &level, &strategy);
Data_Get_Struct(obj, struct gzfile, gz);
/* this is undocumented feature of zlib */
gz->level = ARG_LEVEL(level);
err = deflateInit2(&gz->z.stream, gz->level, Z_DEFLATED,
-MAX_WBITS, DEF_MEM_LEVEL, ARG_STRATEGY(strategy));
if (err != Z_OK) {
raise_zlib_error(err, gz->z.stream.msg);
}
gz->io = io;
ZSTREAM_READY(&gz->z);
rb_gzfile_ecopts(gz, opt);
return obj;
}
RSpec
Ruby on Rails
Ruby
= private
= protected
