Method: Zstdlib::Deflate#initialize_copy

Defined in:
ext/zstdlib_c/ruby/zlib-3.2/zstdlib.c,
ext/zstdlib_c/ruby/zlib-3.1/zstdlib.c,
ext/zstdlib_c/ruby/zlib-3.0/zstdlib.c,
ext/zstdlib_c/ruby/zlib-2.7/zstdlib.c,
ext/zstdlib_c/ruby/zlib-2.6/zstdlib.c,
ext/zstdlib_c/ruby/zlib-2.5/zstdlib.c,
ext/zstdlib_c/ruby/zlib-2.4/zstdlib.c,
ext/zstdlib_c/ruby/zlib-2.3/zstdlib.c,
ext/zstdlib_c/ruby/zlib-2.2/zstdlib.c

#initialize_copy(orig) ⇒ Object

Duplicates the deflate stream.



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# File 'ext/zstdlib_c/ruby/zlib-3.2/zstdlib.c', line 1691

static VALUE
rb_deflate_init_copy(VALUE self, VALUE orig)
{
    struct zstream *z1, *z2;
    int err;

    TypedData_Get_Struct(self, struct zstream, &zstream_data_type, z1);
    z2 = get_zstream(orig);

    if (z1 == z2) return self;
    err = deflateCopy(&z1->stream, &z2->stream);
    if (err != Z_OK) {
  raise_zlib_error(err, 0);
    }
    z1->input = NIL_P(z2->input) ? Qnil : rb_str_dup(z2->input);
    z1->buf   = NIL_P(z2->buf)   ? Qnil : rb_str_dup(z2->buf);
    z1->flags = z2->flags;

    return self;
}