From 3cee6a22c07abe0c60331b860c9fac3388bb72a1 Mon Sep 17 00:00:00 2001 From: normal Date: Sat, 30 Aug 2014 23:53:28 +0000 Subject: zlib: GzipReader#rewind preserves ZSTREAM_FLAG_GZFILE * ext/zlib/zlib.c (gzfile_reset): preserve ZSTREAM_FLAG_GZFILE [Bug #10101] * test/zlib/test_zlib.rb (test_rewind): test each_byte We must preserve the ZSTREAM_FLAG_GZFILE flag to prevent zstream_detach_buffer from: a) returning Qnil and breaking out of the `each_byte' loop b) yielding a large string to each_byte Note: the test case in bug report takes a long time. I found this bug because I noticed the massive time descrepancy between `each_byte' and `readbyte' loop before this patch. With this patch, `each_byte' and `readbyte' both take very long. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@47327 b2dd03c8-39d4-4d8f-98ff-823fe69b080e --- test/zlib/test_zlib.rb | 5 +++++ 1 file changed, 5 insertions(+) (limited to 'test/zlib') diff --git a/test/zlib/test_zlib.rb b/test/zlib/test_zlib.rb index f381b2ec0d..a7fa943c7a 100644 --- a/test/zlib/test_zlib.rb +++ b/test/zlib/test_zlib.rb @@ -695,6 +695,11 @@ if defined? Zlib assert_equal("foo", f.read) f.rewind assert_equal("foo", f.read) + + f.rewind + bytes = [] + f.each_byte { |b| bytes << b } + assert_equal "foo".bytes.to_a, bytes, '[Bug #10101]' end open(t.path, "rb") do |f| gz = Zlib::GzipReader.new(f) -- cgit v1.2.3