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dir.c: retry glob with GC

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* dir.c (do_opendir): retry after GC when the limit for open file
  descriptors reached.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@56467 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2016-10-21 07:44:46 +00:00
parent 9590e99031
commit 5d20d347c7
3 changed files with 32 additions and 2 deletions
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5
ChangeLog
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@ -1,3 +1,8 @@
Fri Oct 21 16:44:44 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* dir.c (do_opendir): retry after GC when the limit for open file
descriptors reached.
Fri Oct 21 16:06:25 2016 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ruby.c (open_load_file): retry after GC when the limit for open

13
dir.c
View file

@ -1286,8 +1286,19 @@ do_opendir(const char *path, int flags, rb_encoding *enc)
}
#endif
dirp = opendir(path);
if (dirp == NULL && !to_be_ignored(errno))
if (!dirp) {
int e = errno;
switch (rb_gc_for_fd(e)) {
default:
dirp = opendir(path);
if (dirp) break;
e = errno;
/* fallback */
case 0:
if (to_be_ignored(e)) break;
sys_warning(path, enc);
}
}
#ifdef _WIN32
if (tmp) rb_str_resize(tmp, 0); /* GC guard */
#endif

14
test/ruby/test_dir.rb
View file

@ -354,4 +354,18 @@ class TestDir < Test::Unit::TestCase
assert_raise(Errno::ENOENT) {Dir.empty?(@nodir)}
assert_not_send([Dir, :empty?, File.join(@root, "b")])
end
def test_glob_gc_for_fd
assert_separately(["-C", @root], "#{<<-"begin;"}\n#{<<-"end;"}", timeout: 3)
begin;
Process.setrlimit(Process::RLIMIT_NOFILE, 50)
begin
tap {tap {tap {(0..100).map {open(IO::NULL)}}}}
rescue Errno::EMFILE
end
list = Dir.glob("*").sort
assert_not_empty(list)
assert_equal([*"a".."z"], list)
end;
end
end