Backport of PID table code from trunk to 2.2...
Create a branch for this until we test enough to
fold into 2.2


git-svn-id: https://svn.apache.org/repos/asf/httpd/httpd/branches/httpd-2.2-pid-table@546948 13f79535-47bb-0310-9956-ffa450edef68
14 files changed