process.c (waitpid_nogvl): start timer thread polling for lossy SIGCHLD
For systems with lossy SIGCHLD, an infinitely sleeping timer thread needs to be aware of rb_waitpid callers in the first place before it can check and reset polling status.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63829 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
process.c (waitpid_nogvl): start timer thread polling for lossy SIGCHLD
For systems with lossy SIGCHLD, an infinitely sleeping timer
thread needs to be aware of rb_waitpid callers in the first
place before it can check and reset polling status.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@63829 b2dd03c8-39d4-4d8f-98ff-823fe69b080e