Gzip the given +string+. Valid values of level are Zstdlib::NO_COMPRESSION, Zstdlib::BEST_SPEED, Zstdlib::BEST_COMPRESSION, Zstdlib::DEFAULT_COMPRESSION (default), or an integer from 0 to 9.
This method is almost equivalent to the following code:
def gzip(string, level: nil, strategy: nil) sio = StringIO.new sio.binmode gz = Zstdlib::GzipWriter.new(sio, level, strategy) gz.write(string) gz.close sio.string end
See also Zstdlib.gunzip
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# File 'ext/zstdlib_c/ruby/zlib-3.3/zstdlib.c', line 4518 static VALUE zlib_s_gzip(int argc, VALUE *argv, VALUE klass) { struct gzfile gz0; struct gzfile *gz = &gz0; int err; VALUE src, opts, level=Qnil, strategy=Qnil, args[2]; if (OPTHASH_GIVEN_P(opts)) { ID keyword_ids[2]; VALUE kwargs[2]; keyword_ids[0] = id_level; keyword_ids[1] = id_strategy; rb_get_kwargs(opts, keyword_ids, 0, 2, kwargs); if (kwargs[0] != Qundef) { level = kwargs[0]; } if (kwargs[1] != Qundef) { strategy = kwargs[1]; } } rb_scan_args(argc, argv, "10", &src); StringValue(src); gzfile_init(gz, &deflate_funcs, zlib_gzip_end); 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) { zlib_gzip_end(gz); raise_zlib_error(err, gz->z.stream.msg); } ZSTREAM_READY(&gz->z); args[0] = (VALUE)gz; args[1] = src; return rb_ensure(zlib_gzip_run, (VALUE)args, zlib_gzip_ensure, (VALUE)gz); } |