future-proof against close-on-exec by default

Setting the close-on-exec flag by default and closing
non-standard descriptors is proposed for Ruby 1.9.4/2.0.0.
Since Unicorn is one of the few apps to rely on FD inheritance
across exec(), we need to workaround this by redirecting each
listener FD to itself for Kernel#exec.

Ruby supports a hash as the final argument to Kernel#exec since
at least 1.9.1 (nobody cares for 1.9.0 anymore). This allows
users to backport close-on-exec by default patches to older
1.9.x installs without breaking anything.

ref: http://redmine.ruby-lang.org/issues/5041

0 files changed, 0 insertions, 0 deletions