[ruby-core:58335] Re: [ruby-trunk - Bug #9102][Open] ObjectSpace.dump_all creates a FD without close-on-exec flag

2013/11/11 akr (Akira Tanaka) <[e-mail]>:
> Bug #9102: ObjectSpace.dump_all creates a FD without close-on-exec flag
> https://bugs.ruby-lang.org/issues/9102

> I think we cannot use mkstemp().

Another reason we should avoid mkstemp() is that it doesn't
respect TMPDIR environment variable.

It makes CI difficult to remove temporary files reliably.

It seems test/objspace/test_objspace.rb retains a temporary variable in /tmp.

% ./ruby test/objspace/test_objspace.rb
Run options:

# Running tests:

Finished tests in 0.626708s, 22.3390 tests/s, 101369.4049
assertions/s.
14 tests, 63529 assertions, 0 failures, 0 errors, 0 skips

ruby -v: ruby 2.1.0dev (2013-11-14 trunk 43675) [x86_64-linux]
% ls /tmp/rubyheap*
/tmp/rubyheapIPCDjl

chkbuild (CI used by rubyci.org) sets TMPDIR to a unique directory
for each build to remove temporary files even if a test aborts.

But temporary files created by mkstemp() are not removable because
TMPDIR is not in effect.
-- 
Tanaka Akira